chore: audit 24 and 17 cases, host kept out

install.ps1

@@ -16,7 +16,7 @@
     # and Invoke-WebRequest throws on a cut transfer before the hash is read:
     # the site's build rewrites this line there (scripts/sitebootstrap.py).
     $mismatchAdvice = "The download was most likely cut short: try again. Within minutes of an update of this project the two files can come from caches of different ages. Waiting five minutes settles that."
-    $defaultInstallSha256 = "403b6e8a7efcd24858b0f46ffa19c2b9012cdeef149768729d8e48d0b68a296a"
+    $defaultInstallSha256 = "a5713bf93a8b48b5649aa7040a429ec4ac2a2ae62b14b07eb6c91cb96c15d984"
     $maximumInstallerBytes = 2MB
     $installerExit = 0
     $installer = if ($PSScriptRoot) { Join-Path $PSScriptRoot "install.py" } else { $null }

install.py

@@ -12164,8 +12164,12 @@ def card_setups() -> list[CardSetup]:
         below = next((rule.bios[len(_card_mount(rule.bios)):] for rule in _EMBEDDED_RULES
                       if rule.name == name and rule.bios and _card_mount(rule.bios)), "")
         if below:
-            setups.append(CardSetup(name, "retroarch", below,
-                                    tuple(rule for rule in rules if rule.name == name)))
+            own = tuple(rule for rule in rules if rule.name in (name, _built_on(name)))
+            # Told by the games part alone, as AmberELEC's: a card that holds
+            # none of it yet is taken as named, said so (tui_audit_17 P2-3).
+            setups.append(CardSetup(name, "retroarch", below, own,
+                                    bool(own) and all(rule.method == "games_part"
+                                                      for rule in own)))
     return setups
 
 
@@ -19173,7 +19177,13 @@ def _view_plan(state: TuiState, width: int, height: int) -> tuple:
                     for event in events}
             held = [event for event in chosen if event["dest"] in took]
             rest = len(chosen) - len(held) + data
+            # Nothing at hand: the head the whole list's plan says, for the
+            # systems ticked. "About 0 files, 0 B" stood over 20 files the
+            # internet would bring (tui_audit_17 P3-5).
             lines[0] = _styled(
+                f"{agree(rest, 'file needs', 'files need')} the internet, which "
+                f"{offline_named()} does not use, for {len(state.ticked)} of "
+                f"{len(state.systems)} systems", "title") if not held else _styled(
                 f"About {_plural(len(held), 'file')}, "
                 f"{format_size(sum(e['size'] for e in held))}, for {len(state.ticked)} of "
                 f"{len(state.systems)} systems"

install.sh

@@ -23,7 +23,7 @@ DEFAULT_INSTALL_URL="https://raw.githubusercontent.com/Abdess/retrobios/main/ins
 # curl or wget stop on a cut transfer before the hash is read: the site's
 # build rewrites this line there (scripts/sitebootstrap.py).
 MISMATCH_ADVICE="The download was most likely cut short: try again. Within minutes of an update of this project the two files can come from caches of different ages. Waiting five minutes settles that."
-DEFAULT_INSTALL_SHA256="403b6e8a7efcd24858b0f46ffa19c2b9012cdeef149768729d8e48d0b68a296a"
+DEFAULT_INSTALL_SHA256="a5713bf93a8b48b5649aa7040a429ec4ac2a2ae62b14b07eb6c91cb96c15d984"
 MAX_INSTALLER_BYTES=2097152
 
 cleanup() {

tests/fixtures/tui/colour-120x40.txt

@@ -373,6 +373,7 @@
 ^[[0;1m ^[[0;1;32mEverything is in place^[[0m
  BIOS folder: ^[[0;1m~/.config/retroarch/system^[[0m
  ^[[0;32m5 in place^[[0m, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
  
 ^[[0;7;35m > Close^[[0m
@@ -404,20 +405,19 @@
  
  
  
- 
  
  
  ^[[0;1;35mA/Enter^[[0m Close  ^[[0;2mB/Esc^[[0m Back  ^[[0;2mY/o^[[0m Options  ^[[0;2m?^[[0m Help
 === systems
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Choose systems^[[0m
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+^[[0;7;35m > [ ] nintendo-famicom-disk (ファミコン)                              in place^[[0m
    All
    None
-   Filter (/ to type)
-^[[0;7;35m > [x] nintendo-gba (gba)                                       1 file, 16.0 KB^[[0m
-   [x] sony-playstation                                         3 files, 1.0 MB
-^[[0;2m   [ ] nintendo-famicom-disk (ファミコン)                              in place^[[0m
- 
+   ^[[0;32mDone^[[0m
  
  
  
@@ -448,7 +448,7 @@
  
  
 ^[[0;1m ^[[0;1;35m2^[[0;1m of ^[[0;1;35m3^[[0;1m systems: ^[[0;1;35m4^[[0;1m files, ^[[0;1;35m1.0 MB^[[0m
- ^[[0;1;35mA/Enter^[[0m Continue  ^[[0;2mB/Esc^[[0m Back  ^[[0;2mX/Space^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA/Enter^[[0m Tick  ^[[0;2mB/Esc^[[0m Done  ^[[0;2m?^[[0m Help
 === options
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Options^[[0m
 
@@ -498,8 +498,8 @@
  
 ^[[0;7;35m > [1] North America^[[0m
    [ ] Japan
- 
- 
+   None
+   ^[[0;32mDone^[[0m
  
  
  
@@ -534,14 +534,15 @@
 === cores
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Cores^[[0m
 
- Every core ticked keeps every core's files. Untick the cores you do not use: the platform's own
-   files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and a core with no
+   extra file reads only those.
  
-^[[0;7;35m > All^[[0m
+^[[0;7;35m > Filter (/ to type)^[[0m
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   ^[[0;32mDone^[[0m
  
  
  
@@ -570,8 +571,7 @@
  
  
  
- 
- ^[[0;1;35mA/Enter^[[0m Tick all  ^[[0;2mB/Esc^[[0m Back  ^[[0;2mX/Space^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA/Enter^[[0m Filter  ^[[0;2mB/Esc^[[0m Done  ^[[0;2m?^[[0m Help
 === preview
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Preview^[[0m
 
@@ -742,6 +742,7 @@
 ^[[0;1m ^[[0;1;32m3 installed^[[0;1m, ^[[0;1;31m1 failed^[[0;1m.^[[0m
  BIOS folder: ^[[0;1m/home/user/.config/retroarch/system^[[0m
    ^[[0;1;31mfailed:^[[0m scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
    --restore /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
@@ -773,7 +774,6 @@
 
 
 
-
 
 
  ^[[0;1;35mA/Enter^[[0m Exit

tests/fixtures/tui/colour-40x12.txt

@@ -122,25 +122,25 @@
  BIOS folder:
    ^[[0;1m~/.config/retroarch/system^[[0m
  ^[[0;32m5 in place^[[0m, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
- 
 ^[[0;7;35m > Close^[[0m
    Options
- 
  ^[[0;1;35mA^[[0m Close  ^[[0;2mB^[[0m Back  ^[[0;2mY^[[0m Options  ^[[0;2m?^[[0m Help
 === systems
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Choose systems^[[0m
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+^[[0;7;35m > [ ] nintendo-famicom-disk   in place^[[0m
    All
    None
-   Filter (/ to type)
-^[[0;7;35m > [x] nintendo-gba (gba)       16.0 KB^[[0m
-   [x] sony-playstation          1.0 MB
-^[[0;2m   [ ] nintendo-famicom-disk   in place^[[0m
- 
- 
+^[[0;2m 1-3 of 3^[[0m
+ nintendo-famicom-disk (ファミコン): in
+   place
 ^[[0;1m ^[[0;1;35m2^[[0;1m of ^[[0;1;35m3^[[0;1m systems: ^[[0;1;35m4^[[0;1m files, ^[[0;1;35m1.0 MB^[[0m
- ^[[0;1;35mA^[[0m Continue  ^[[0;2mB^[[0m Back  ^[[0;2mX^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA^[[0m Tick  ^[[0;2mB^[[0m Done  ^[[0;2m?^[[0m Help
 === options
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Options^[[0m
 
@@ -165,21 +165,21 @@
  
 ^[[0;7;35m > [1] North America^[[0m
    [ ] Japan
- 
+^[[0;2m 1-2 of 2^[[0m
  ^[[0;1;35mA^[[0m Tick  ^[[0;2mB^[[0m Done  ^[[0;2m<>^[[0m Order  ^[[0;2m?^[[0m Help
 === cores
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Cores^[[0m
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
-^[[0;7;35m > All^[[0m
-   None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
- ^[[0;1;35mA^[[0m Tick all  ^[[0;2mB^[[0m Back  ^[[0;2mX^[[0m Tick  ^[[0;2m?^[[0m Help
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+ 
+^[[0;7;35m > Filter (/ to type)^[[0m
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+^[[0;2m 1-2 of 2^[[0m
+ ^[[0;1;35mA^[[0m Filter  ^[[0;2mB^[[0m Done  ^[[0;2m?^[[0m Help
 === preview
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Preview^[[0m
 
@@ -239,11 +239,11 @@
  BIOS folder:
    ^[[0;1m/home/user/.config/retroarch/system^[[0m
    ^[[0;1;31mfailed:^[[0m scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
- To put them back: python3 install.py \
-^[[0;2m 1-8 of 16^[[0m
+^[[0;2m 1-8 of 17^[[0m
  ^[[0;1;35mA^[[0m Exit  ^[[0;2m^v^[[0m Scroll
 === error
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: ^[[0;1;31mSomething went wrong^[[0m

tests/fixtures/tui/colour-40x15.txt

@@ -149,31 +149,31 @@
  BIOS folder:
    ^[[0;1m~/.config/retroarch/system^[[0m
  ^[[0;32m5 in place^[[0m, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
  
 ^[[0;7;35m > Close^[[0m
    Options
  
  
- 
- 
  ^[[0;1;35mA^[[0m Close  ^[[0;2mB^[[0m Back  ^[[0;2mY^[[0m Options  ^[[0;2m?^[[0m Help
 === systems
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Choose systems^[[0m
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+^[[0;7;35m > [ ] nintendo-famicom-disk   in place^[[0m
    All
    None
-   Filter (/ to type)
-^[[0;7;35m > [x] nintendo-gba (gba)       16.0 KB^[[0m
-   [x] sony-playstation          1.0 MB
-^[[0;2m   [ ] nintendo-famicom-disk   in place^[[0m
- 
- 
- 
+   ^[[0;32mDone^[[0m
  
  
+ nintendo-famicom-disk (ファミコン): in
+   place
 ^[[0;1m ^[[0;1;35m2^[[0;1m of ^[[0;1;35m3^[[0;1m systems: ^[[0;1;35m4^[[0;1m files, ^[[0;1;35m1.0 MB^[[0m
- ^[[0;1;35mA^[[0m Continue  ^[[0;2mB^[[0m Back  ^[[0;2mX^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA^[[0m Tick  ^[[0;2mB^[[0m Done  ^[[0;2m?^[[0m Help
 === options
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Options^[[0m
 
@@ -201,27 +201,27 @@
  
 ^[[0;7;35m > [1] North America^[[0m
    [ ] Japan
- 
- 
+   None
+   ^[[0;32mDone^[[0m
  
  
  ^[[0;1;35mA^[[0m Tick  ^[[0;2mB^[[0m Done  ^[[0;2m<>^[[0m Order  ^[[0;2m?^[[0m Help
 === cores
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Cores^[[0m
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
  
-^[[0;7;35m > All^[[0m
+^[[0;7;35m > Filter (/ to type)^[[0m
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   ^[[0;32mDone^[[0m
  
- 
- ^[[0;1;35mA^[[0m Tick all  ^[[0;2mB^[[0m Back  ^[[0;2mX^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA^[[0m Filter  ^[[0;2mB^[[0m Done  ^[[0;2m?^[[0m Help
 === preview
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Preview^[[0m
 
@@ -293,14 +293,14 @@
  BIOS folder:
    ^[[0;1m/home/user/.config/retroarch/system^[[0m
    ^[[0;1;31mfailed:^[[0m scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
    --restore .../2026-10-23_1200
 ^[[0;2m Shortened to fit this window.^[[0m
- Same choice without questions:
-^[[0;2m 1-11 of 16^[[0m
+^[[0;2m 1-11 of 17^[[0m
  ^[[0;1;35mA^[[0m Exit  ^[[0;2m^v^[[0m Scroll
 === error
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: ^[[0;1;31mSomething went wrong^[[0m

tests/fixtures/tui/colour-80x24.txt

@@ -229,6 +229,7 @@
 ^[[0;1m ^[[0;1;32mEverything is in place^[[0m
  BIOS folder: ^[[0;1m~/.config/retroarch/system^[[0m
  ^[[0;32m5 in place^[[0m, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
  
 ^[[0;7;35m > Close^[[0m
@@ -246,18 +247,17 @@
  
  
  
- 
  ^[[0;1;35mA/Enter^[[0m Close  ^[[0;2mB/Esc^[[0m Back  ^[[0;2mY/o^[[0m Options  ^[[0;2m?^[[0m Help
 === systems
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Choose systems^[[0m
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+^[[0;7;35m > [ ] nintendo-famicom-disk (ファミコン)                              in place^[[0m
    All
    None
-   Filter (/ to type)
-^[[0;7;35m > [x] nintendo-gba (gba)                                       1 file, 16.0 KB^[[0m
-   [x] sony-playstation                                         3 files, 1.0 MB
-^[[0;2m   [ ] nintendo-famicom-disk (ファミコン)                              in place^[[0m
- 
+   ^[[0;32mDone^[[0m
  
  
  
@@ -272,7 +272,7 @@
  
  
 ^[[0;1m ^[[0;1;35m2^[[0;1m of ^[[0;1;35m3^[[0;1m systems: ^[[0;1;35m4^[[0;1m files, ^[[0;1;35m1.0 MB^[[0m
- ^[[0;1;35mA/Enter^[[0m Continue  ^[[0;2mB/Esc^[[0m Back  ^[[0;2mX/Space^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA/Enter^[[0m Tick  ^[[0;2mB/Esc^[[0m Done  ^[[0;2m?^[[0m Help
 === options
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Options^[[0m
 
@@ -307,8 +307,8 @@
  
 ^[[0;7;35m > [1] North America^[[0m
    [ ] Japan
- 
- 
+   None
+   ^[[0;32mDone^[[0m
  
  
  
@@ -326,14 +326,15 @@
 === cores
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Cores^[[0m
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
  
-^[[0;7;35m > All^[[0m
+^[[0;7;35m > Filter (/ to type)^[[0m
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   ^[[0;32mDone^[[0m
  
  
  
@@ -346,8 +347,7 @@
  
  
  
- 
- ^[[0;1;35mA/Enter^[[0m Tick all  ^[[0;2mB/Esc^[[0m Back  ^[[0;2mX/Space^[[0m Tick  ^[[0;2m?^[[0m Help
+ ^[[0;1;35mA/Enter^[[0m Filter  ^[[0;2mB/Esc^[[0m Done  ^[[0;2m?^[[0m Help
 === preview
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: Preview^[[0m
 
@@ -454,6 +454,7 @@
 ^[[0;1m ^[[0;1;32m3 installed^[[0;1m, ^[[0;1;31m1 failed^[[0;1m.^[[0m
  BIOS folder: ^[[0;1m/home/user/.config/retroarch/system^[[0m
    ^[[0;1;31mfailed:^[[0m scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
@@ -471,7 +472,6 @@
 
 
 
-
  ^[[0;1;35mA/Enter^[[0m Exit
 === error
 ^[[0;1m ^[[0;1;35mRetroBIOS^[[0;1m: ^[[0;1;31mSomething went wrong^[[0m

tests/fixtures/tui/cores-120x40.txt

@@ -1,13 +1,14 @@
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use: the platform's own
-   files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and a core with no
+   extra file reads only those.
 
- > All
+ > Filter (/ to type)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -36,5 +37,4 @@
 
 
 
-
- A/Enter Tick all  B/Esc Back  X/Space Tick  ? Help
+ A/Enter Filter  B/Esc Done  ? Help

tests/fixtures/tui/cores-40x12.txt

@@ -1,12 +1,12 @@
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
- A Tick all  B Back  X Tick  ? Help
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (/ to type)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ A Filter  B Done  ? Help

tests/fixtures/tui/cores-40x15.txt

@@ -1,15 +1,15 @@
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (/ to type)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- A Tick all  B Back  X Tick  ? Help
+ A Filter  B Done  ? Help

tests/fixtures/tui/cores-80x24.txt

@@ -1,13 +1,14 @@
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (/ to type)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -20,5 +21,4 @@
 
 
 
-
- A/Enter Tick all  B/Esc Back  X/Space Tick  ? Help
+ A/Enter Filter  B/Esc Done  ? Help

tests/fixtures/tui/plan-in-place-120x40.txt

@@ -3,6 +3,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -34,7 +35,6 @@
 
 
 
-
 
 
  A/Enter Close  B/Esc Back  Y/o Options  ? Help

tests/fixtures/tui/plan-in-place-40x12.txt

@@ -4,9 +4,9 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  A Close  B Back  Y Options  ? Help

tests/fixtures/tui/plan-in-place-40x15.txt

@@ -4,12 +4,12 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  A Close  B Back  Y Options  ? Help

tests/fixtures/tui/plan-in-place-80x24.txt

@@ -3,6 +3,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -20,5 +21,4 @@
 
 
 
-
  A/Enter Close  B/Esc Back  Y/o Options  ? Help

tests/fixtures/tui/regions-120x40.txt

@@ -5,8 +5,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 

tests/fixtures/tui/regions-40x12.txt

@@ -8,5 +8,5 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  A Tick  B Done  <> Order  ? Help

tests/fixtures/tui/regions-40x15.txt

@@ -8,8 +8,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  A Tick  B Done  <> Order  ? Help

tests/fixtures/tui/regions-80x24.txt

@@ -6,8 +6,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 

tests/fixtures/tui/result-120x40.txt

@@ -3,6 +3,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
    --restore /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
@@ -34,7 +35,6 @@
 
 
 
-
 
 
  A/Enter Exit

tests/fixtures/tui/result-40x12.txt

@@ -4,9 +4,9 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
- To put them back: python3 install.py \
- 1-8 of 16
+ 1-8 of 17
  A Exit  ^v Scroll

tests/fixtures/tui/result-40x15.txt

@@ -4,12 +4,12 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
    --restore .../2026-10-23_1200
  Shortened to fit this window.
- Same choice without questions:
- 1-11 of 16
+ 1-11 of 17
  A Exit  ^v Scroll

tests/fixtures/tui/result-80x24.txt

@@ -3,6 +3,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
@@ -20,5 +21,4 @@
 
 
 
-
  A/Enter Exit

tests/fixtures/tui/route-evmapy.txt

@@ -462,11 +462,11 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  A Close  B Back  Y Options
 === plan-in-place 40x15
  RetroBIOS: RetroArch
@@ -475,14 +475,14 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  A Close  B Back  Y Options
 === plan-in-place 80x24
  RetroBIOS: RetroArch
@@ -490,6 +490,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -507,47 +508,46 @@
 
 
 
-
  A Close  B Back  Y Options
 === systems 40x12
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === systems 40x15
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === systems 80x24
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -562,7 +562,7 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === options 40x12
  RetroBIOS: Options
 
@@ -628,7 +628,7 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  A Tick  B Done  <> Order
 === regions 40x15
  RetroBIOS: Preferred regions
@@ -641,8 +641,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  A Tick  B Done  <> Order
@@ -655,8 +655,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 
@@ -674,43 +674,44 @@
 === cores 40x12
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
- A Tick all  B Back  X Tick
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ A Filter  B Done
 === cores 40x15
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- A Tick all  B Back  X Tick
+ A Filter  B Done
 === cores 80x24
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -723,8 +724,7 @@
 
 
 
-
- A Tick all  B Back  X Tick
+ A Filter  B Done
 === preview 80x24
  RetroBIOS: Preview
 
@@ -890,11 +890,11 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
-
  A Exit
 === result 40x15
  RetroBIOS: Finished with errors
@@ -903,6 +903,7 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
@@ -910,7 +911,6 @@
 
 
 
-
  A Exit
 === result 80x24
  RetroBIOS: Finished with errors
@@ -918,6 +918,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
@@ -935,7 +936,6 @@
 
 
 
-
  A Exit
 === error 40x12
  RetroBIOS: Something went wrong

tests/fixtures/tui/route-gptokeyb.txt

@@ -462,11 +462,11 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  A Close  B Back  Y Options
 === plan-in-place 40x15
  RetroBIOS: RetroArch
@@ -475,14 +475,14 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  A Close  B Back  Y Options
 === plan-in-place 80x24
  RetroBIOS: RetroArch
@@ -490,6 +490,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -507,47 +508,46 @@
 
 
 
-
  A Close  B Back  Y Options
 === systems 40x12
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === systems 40x15
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === systems 80x24
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -562,7 +562,7 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === options 40x12
  RetroBIOS: Options
 
@@ -628,7 +628,7 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  A Tick  B Done  <> Order
 === regions 40x15
  RetroBIOS: Preferred regions
@@ -641,8 +641,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  A Tick  B Done  <> Order
@@ -655,8 +655,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 
@@ -674,43 +674,44 @@
 === cores 40x12
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
- A Tick all  B Back  X Tick
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ A Filter  B Done
 === cores 40x15
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- A Tick all  B Back  X Tick
+ A Filter  B Done
 === cores 80x24
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -723,8 +724,7 @@
 
 
 
-
- A Tick all  B Back  X Tick
+ A Filter  B Done
 === preview 80x24
  RetroBIOS: Preview
 
@@ -890,11 +890,11 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
-
  A Exit
 === result 40x15
  RetroBIOS: Finished with errors
@@ -903,6 +903,7 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
@@ -910,7 +911,6 @@
 
 
 
-
  A Exit
 === result 80x24
  RetroBIOS: Finished with errors
@@ -918,6 +918,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
@@ -935,7 +936,6 @@
 
 
 
-
  A Exit
 === error 40x12
  RetroBIOS: Something went wrong

tests/fixtures/tui/route-gptokeyb_muxterm.txt

@@ -462,11 +462,11 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  A Close  B Back  Y Options
 === plan-in-place 40x15
  RetroBIOS: RetroArch
@@ -475,14 +475,14 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  A Close  B Back  Y Options
 === plan-in-place 80x24
  RetroBIOS: RetroArch
@@ -490,6 +490,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -507,47 +508,46 @@
 
 
 
-
  A Close  B Back  Y Options
 === systems 40x12
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === systems 40x15
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === systems 80x24
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -562,7 +562,7 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick
+ A Tick  B Done
 === options 40x12
  RetroBIOS: Options
 
@@ -628,7 +628,7 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  A Tick  B Done  <> Order
 === regions 40x15
  RetroBIOS: Preferred regions
@@ -641,8 +641,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  A Tick  B Done  <> Order
@@ -655,8 +655,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 
@@ -674,43 +674,44 @@
 === cores 40x12
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
- A Tick all  B Back  X Tick
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ A Filter  B Done
 === cores 40x15
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- A Tick all  B Back  X Tick
+ A Filter  B Done
 === cores 80x24
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -723,8 +724,7 @@
 
 
 
-
- A Tick all  B Back  X Tick
+ A Filter  B Done
 === preview 80x24
  RetroBIOS: Preview
 
@@ -890,11 +890,11 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
-
  A Exit
 === result 40x15
  RetroBIOS: Finished with errors
@@ -903,6 +903,7 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
@@ -910,7 +911,6 @@
 
 
 
-
  A Exit
 === result 80x24
  RetroBIOS: Finished with errors
@@ -918,6 +918,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
@@ -935,7 +936,6 @@
 
 
 
-
  A Exit
 === error 40x12
  RetroBIOS: Something went wrong

tests/fixtures/tui/route-keys.txt

@@ -437,11 +437,11 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  Enter Close  Esc Back  o Options
 === plan-in-place 40x15
  RetroBIOS: RetroArch
@@ -450,14 +450,14 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  Enter Close  Esc Back  o Options
 === plan-in-place 80x24
  RetroBIOS: RetroArch
@@ -465,6 +465,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -482,47 +483,46 @@
 
 
 
-
  Enter Close  Esc Back  o Options  ? Help
 === systems 40x12
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- Enter Continue  Esc Back  Space Tick
+ Enter Tick  Esc Done  ? Help
 === systems 40x15
  RetroBIOS: Choose systems
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- Enter Continue  Esc Back  Space Tick
+ Enter Tick  Esc Done  ? Help
 === systems 80x24
  RetroBIOS: Choose systems
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -537,7 +537,7 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- Enter Continue  Esc Back  Space Tick  ? Help
+ Enter Tick  Esc Done  ? Help
 === options 40x12
  RetroBIOS: Options
 
@@ -603,7 +603,7 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  Enter Tick  Esc Done  <> Order  ? Help
 === regions 40x15
  RetroBIOS: Preferred regions
@@ -616,8 +616,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  Enter Tick  Esc Done  <> Order  ? Help
@@ -630,8 +630,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 
@@ -649,43 +649,44 @@
 === cores 40x12
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
- Enter Tick all  Esc Back  Space Tick
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (/ to type)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ Enter Filter  Esc Done  ? Help
 === cores 40x15
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (/ to type)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- Enter Tick all  Esc Back  Space Tick
+ Enter Filter  Esc Done  ? Help
 === cores 80x24
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (/ to type)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (/ to type)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -698,8 +699,7 @@
 
 
 
-
- Enter Tick all  Esc Back  Space Tick  ? Help
+ Enter Filter  Esc Done  ? Help
 === preview 40x12
  RetroBIOS: Preview
 
@@ -923,11 +923,11 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
- To put them back: python3 install.py \
- 1-8 of 16
+ 1-8 of 17
  Enter Exit  ^v Scroll
 === result 40x15
  RetroBIOS: Finished with errors
@@ -936,14 +936,14 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
    --restore .../2026-10-23_1200
  Shortened to fit this window.
- Same choice without questions:
- 1-11 of 16
+ 1-11 of 17
  Enter Exit  ^v Scroll
 === result 80x24
  RetroBIOS: Finished with errors
@@ -951,6 +951,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  To put them back: python3 install.py \
@@ -968,7 +969,6 @@
 
 
 
-
  Enter Exit
 === error 40x12
  RetroBIOS: Something went wrong

tests/fixtures/tui/route-miyoo.txt

@@ -491,11 +491,11 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  A Close  R2 Back  L2 Options
 === plan-in-place 40x15
  RetroBIOS: RetroArch
@@ -504,14 +504,14 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  A Close  R2 Back  L2 Options
 === plan-in-place 80x24
  RetroBIOS: RetroArch
@@ -519,6 +519,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -536,47 +537,46 @@
 
 
 
-
  A Close  R2 Back  L2 Options
 === systems 40x12
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- Start Continue  A Tick  R2 Back
+ A Tick  R2 Done
 === systems 40x15
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- Start Continue  A Tick  R2 Back
+ A Tick  R2 Done
 === systems 80x24
  RetroBIOS: Choose systems
 
+   Filter (with a keyboard)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (with a keyboard)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -591,7 +591,7 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- Start Continue  A Tick  R2 Back
+ A Tick  R2 Done
 === options 40x12
  RetroBIOS: Options
 
@@ -657,7 +657,7 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  A Tick  R2 Done  <> Order
 === regions 40x15
  RetroBIOS: Preferred regions
@@ -670,8 +670,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  A Tick  R2 Done  <> Order
@@ -684,8 +684,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 
@@ -703,43 +703,44 @@
 === cores 40x12
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
- A Tick all  R2 Back
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ A Filter  R2 Done
 === cores 40x15
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- A Tick all  R2 Back
+ A Filter  R2 Done
 === cores 80x24
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (with a keyboard)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (with a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -752,8 +753,7 @@
 
 
 
-
- A Tick all  R2 Back
+ A Filter  R2 Done
 === preview 80x24
  RetroBIOS: Preview
 
@@ -919,11 +919,11 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
-
  A Exit
 === result 40x15
  RetroBIOS: Finished with errors
@@ -932,6 +932,7 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
@@ -939,7 +940,6 @@
 
 
 
-
  A Exit
 === result 80x24
  RetroBIOS: Finished with errors
@@ -947,6 +947,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
@@ -964,7 +965,6 @@
 
 
 
-
  A Exit
 === error 40x12
  RetroBIOS: Something went wrong

tests/fixtures/tui/route-muxterm.txt

@@ -491,11 +491,11 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
-
  > Close
    Options
-
  Start Close  B Back
 === plan-in-place 40x15
  RetroBIOS: RetroArch
@@ -504,14 +504,14 @@
  BIOS folder:
    ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced,
+   the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
    Options
 
 
-
-
  Start Close  B Back
 === plan-in-place 80x24
  RetroBIOS: RetroArch
@@ -519,6 +519,7 @@
  Everything is in place
  BIOS folder: ~/.config/retroarch/system
  5 in place, 0 missing, 0 wrong copies
+ 1 of the 0 wrong copies is replaced, the old one kept in a backup folder.
  Free space: 50.0 GB
 
  > Close
@@ -536,47 +537,46 @@
 
 
 
-
  Start Close  B Back
 === systems 40x12
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (Select shows a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- Start Continue  B Back  Y Tick
+ Start Tick  B Done
 === systems 40x15
  RetroBIOS: Choose systems
 
+   Filter (Select shows a keyboard)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (Select shows a keyboard)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- Start Continue  B Back  Y Tick
+ Start Tick  B Done
 === systems 80x24
  RetroBIOS: Choose systems
 
+   Filter (Select shows a keyboard)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (Select shows a keyboard)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -591,7 +591,7 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- Start Continue  B Back  Y Tick
+ Start Tick  B Done
 === options 40x12
  RetroBIOS: Options
 
@@ -657,7 +657,7 @@
 
  > [1] North America
    [ ] Japan
-
+ 1-2 of 2
  Start Tick  B Done  <> Order
 === regions 40x15
  RetroBIOS: Preferred regions
@@ -670,8 +670,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
  Start Tick  B Done  <> Order
@@ -684,8 +684,8 @@
 
  > [1] North America
    [ ] Japan
-
-
+   None
+   Done
 
 
 
@@ -703,43 +703,44 @@
 === cores 40x12
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
- > All
-   None
-   Filter (Select shows a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
- Start Tick all  B Back  Y Tick
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
+
+ > Filter (Select shows a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+ 1-2 of 2
+ Start Filter  B Done
 === cores 40x15
  RetroBIOS: Cores
 
- Every core ticked keeps every core's
-   files. Untick the cores you do not
-   use: the platform's own files are
-   always kept.
+ Untick the cores you do not use: the
+   platform's own files are always
+   kept, and a core with no extra file
+   reads only those.
 
- > All
+ > Filter (Select shows a keyboard)
+   [ ] mesen             1 file, 8.0 KB
+   [x] pcsx_rearmed         1 file, 4 B
+   All
    None
-   Filter (Select shows a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
-
- Start Tick all  B Back  Y Tick
+ Start Filter  B Done
 === cores 80x24
  RetroBIOS: Cores
 
- Every core ticked keeps every core's files. Untick the cores you do not use:
-   the platform's own files are always kept.
+ Untick the cores you do not use: the platform's own files are always kept, and
+   a core with no extra file reads only those.
 
- > All
+ > Filter (Select shows a keyboard)
+   [ ] mesen                                                     1 file, 8.0 KB
+   [x] pcsx_rearmed                                                 1 file, 4 B
+   All
    None
-   Filter (Select shows a keyboard)
-   [ ] mesen
-   [x] pcsx_rearmed
+   Done
 
 
 
@@ -752,8 +753,7 @@
 
 
 
-
- Start Tick all  B Back  Y Tick
+ Start Filter  B Done
 === preview 40x12
  RetroBIOS: Preview
 
@@ -977,11 +977,11 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
-
  Start Exit
 === result 40x15
  RetroBIOS: Finished with errors
@@ -990,6 +990,7 @@
  BIOS folder:
    /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/
    retrobios-backup/2026-10-23_1200
@@ -997,7 +998,6 @@
 
 
 
-
  Start Exit
 === result 80x24
  RetroBIOS: Finished with errors
@@ -1005,6 +1005,7 @@
  3 installed, 1 failed.
  BIOS folder: /home/user/.config/retroarch/system
    failed: scph5500.bin (HTTP 404)
+ Run it again to retry only those.
  The files it replaced are kept in
    /home/user/.config/retroarch/retrobios-backup/2026-10-23_1200
  Details: /tmp/retrobios-x/install.log
@@ -1022,7 +1023,6 @@
 
 
 
-
  Start Exit
 === error 40x12
  RetroBIOS: Something went wrong

tests/fixtures/tui/systems-120x40.txt

@@ -1,12 +1,12 @@
  RetroBIOS: Choose systems
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -37,4 +37,4 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- A/Enter Continue  B/Esc Back  X/Space Tick  ? Help
+ A/Enter Tick  B/Esc Done  ? Help

tests/fixtures/tui/systems-40x12.txt

@@ -1,12 +1,12 @@
  RetroBIOS: Choose systems
 
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
+ 1-3 of 3
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick  ? Help
+ A Tick  B Done  ? Help

tests/fixtures/tui/systems-40x15.txt

@@ -1,15 +1,15 @@
  RetroBIOS: Choose systems
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)       16.0 KB
+   [x] sony-playstation          1.0 MB
+ > [ ] nintendo-famicom-disk   in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)       16.0 KB
-   [x] sony-playstation          1.0 MB
-   [ ] nintendo-famicom-disk   in place
-
-
-
+   Done
 
 
+ nintendo-famicom-disk (ファミコン): in
+   place
  2 of 3 systems: 4 files, 1.0 MB
- A Continue  B Back  X Tick  ? Help
+ A Tick  B Done  ? Help

tests/fixtures/tui/systems-80x24.txt

@@ -1,12 +1,12 @@
  RetroBIOS: Choose systems
 
+   Filter (/ to type)
+   [x] nintendo-gba (gba)                                       1 file, 16.0 KB
+   [x] sony-playstation                                         3 files, 1.0 MB
+ > [ ] nintendo-famicom-disk (ファミコン)                              in place
    All
    None
-   Filter (/ to type)
- > [x] nintendo-gba (gba)                                       1 file, 16.0 KB
-   [x] sony-playstation                                         3 files, 1.0 MB
-   [ ] nintendo-famicom-disk (ファミコン)                              in place
-
+   Done
 
 
 
@@ -21,4 +21,4 @@
 
 
  2 of 3 systems: 4 files, 1.0 MB
- A/Enter Continue  B/Esc Back  X/Space Tick  ? Help
+ A/Enter Tick  B/Esc Done  ? Help

tests/netguard/__init__.py

@@ -0,0 +1,33 @@
+"""The guard a test module turns on for itself and the Python it starts
+(sitecustomize). module_guard() gives the setUpModule and tearDownModule
+pair: the module fails at its end when anything tried to leave the loopback."""
+
+from __future__ import annotations
+
+import os
+from pathlib import Path
+from typing import Callable
+
+from .sitecustomize import disable, enable, refused
+
+__all__ = ["module_guard", "enable", "disable", "refused"]
+
+
+def module_guard(name: str) -> tuple[Callable[[], None], Callable[[], None]]:
+    log = Path(__file__).resolve().parents[2] / "tmp" / "tests" / f"netlog-{name}-{os.getpid()}"
+    state: dict = {}
+
+    def set_up() -> None:
+        log.parent.mkdir(parents=True, exist_ok=True)
+        state["before"] = enable(str(log))
+
+    def tear_down() -> None:
+        disable(state.pop("before", {}))
+        tried = refused(str(log))
+        log.unlink(missing_ok=True)
+        if tried:
+            raise AssertionError(
+                f"{len(tried)} connections off the loopback during {name} (pid host): "
+                + ", ".join(tried[:10]))
+
+    return set_up, tear_down

tests/netguard/sitecustomize.py

@@ -0,0 +1,133 @@
+"""The machine running the installer tests, kept out of them.
+
+Python imports this module at start in every process a test starts with
+tests/netguard on PYTHONPATH (enable), and the test module
+calls guard() for its own process. Two things the host has never reach a
+test: a connection off the loopback, which is refused (OSError, as a network
+that is down) and written to RETROBIOS_TEST_NETLOG, and the cards and drives
+mounted under /media, /run/media, /mnt and /Volumes, which read as folders
+no drive is mounted on. A test module passed on a machine with no network
+and no card, and failed with an AmberELEC card in the reader, while 261
+connections to GitHub left the module in a run (code_audit_24 P3-13).
+"""
+
+from __future__ import annotations
+
+import errno
+import os
+import socket
+import sys
+
+LOOPBACK = frozenset({"127.0.0.1", "::1", "localhost", "0.0.0.0", ""})
+MOUNT_ROOTS = ("/media", "/run/media", "/mnt", "/Volumes")
+NETLOG = "RETROBIOS_TEST_NETLOG"
+# What guard() replaced, for unguard().
+_SAVED: dict = {}
+
+
+def _refuse(host: object) -> None:
+    where = os.environ.get(NETLOG)
+    if where:
+        with open(where, "a", encoding="utf-8") as log:
+            log.write(f"{os.getpid()} {host} {' '.join(sys.argv)[:300]}\n")
+    raise OSError(errno.ENETUNREACH, f"a test makes no request to {host}")
+
+
+def guard() -> None:
+    """Refuse every connection off the loopback, hide the host's mounts."""
+    if _SAVED:
+        return
+    _SAVED.update(connect=socket.socket.__dict__.get("connect"),
+                  connect_ex=socket.socket.__dict__.get("connect_ex"),
+                  getaddrinfo=socket.getaddrinfo, ismount=os.path.ismount)
+    connect = socket.socket.connect
+    connect_ex = socket.socket.connect_ex
+    getaddrinfo = socket.getaddrinfo
+
+    def host_of(address: object) -> object:
+        return address[0] if isinstance(address, tuple) and address else None
+
+    def checked(sock: socket.socket, address: object) -> None:
+        if sock.family in (socket.AF_INET, socket.AF_INET6) and \
+                host_of(address) not in LOOPBACK:
+            _refuse(host_of(address))
+
+    def guarded_connect(self: socket.socket, address: object) -> None:
+        checked(self, address)
+        return connect(self, address)
+
+    def guarded_connect_ex(self: socket.socket, address: object) -> int:
+        checked(self, address)
+        return connect_ex(self, address)
+
+    def guarded_getaddrinfo(host: object, *args: object, **kwargs: object) -> list:
+        if host is not None and str(host) not in LOOPBACK:
+            _refuse(host)
+        return getaddrinfo(host, *args, **kwargs)
+
+    socket.socket.connect = guarded_connect  # type: ignore[method-assign]
+    socket.socket.connect_ex = guarded_connect_ex  # type: ignore[method-assign]
+    socket.getaddrinfo = guarded_getaddrinfo  # type: ignore[assignment]
+
+    ismount = os.path.ismount
+
+    def guarded_ismount(path: object) -> bool:
+        text = os.fspath(path) if not isinstance(path, str) else path
+        if isinstance(text, bytes):
+            text = text.decode(errors="replace")
+        if any(text == root or text.startswith(root + "/") for root in MOUNT_ROOTS):
+            return False
+        return ismount(path)
+
+    os.path.ismount = guarded_ismount  # type: ignore[assignment]
+
+
+def unguard() -> None:
+    """The process as it was before guard()."""
+    if not _SAVED:
+        return
+    for name in ("connect", "connect_ex"):
+        if _SAVED[name] is None:
+            delattr(socket.socket, name)
+        else:
+            setattr(socket.socket, name, _SAVED[name])
+    socket.getaddrinfo = _SAVED["getaddrinfo"]
+    os.path.ismount = _SAVED["ismount"]
+    _SAVED.clear()
+
+
+def enable(log: str) -> dict:
+    """Guard this process and every Python it starts, the refusals written
+    to log. Returns the variables it changed, for disable()."""
+    before = {name: os.environ.get(name) for name in ("PYTHONPATH", NETLOG)}
+    here = os.path.dirname(os.path.abspath(__file__))
+    paths = [here, *[p for p in os.environ.get("PYTHONPATH", "").split(os.pathsep) if p]]
+    os.environ["PYTHONPATH"] = os.pathsep.join(dict.fromkeys(paths))
+    os.environ[NETLOG] = log
+    with open(log, "w", encoding="utf-8"):
+        pass
+    guard()
+    return before
+
+
+def disable(before: dict) -> None:
+    """This process and the Python it starts as before enable()."""
+    unguard()
+    for name, value in before.items():
+        if value is None:
+            os.environ.pop(name, None)
+        else:
+            os.environ[name] = value
+
+
+def refused(log: str) -> list[str]:
+    """The connections refused since enable(log), one line each."""
+    try:
+        with open(log, encoding="utf-8") as text:
+            return [line.strip() for line in text if line.strip()]
+    except OSError:
+        return []
+
+
+if os.environ.get(NETLOG):
+    guard()

tests/test_doc_pages.py

@@ -175,6 +175,59 @@ class InstallerOutputExample(unittest.TestCase):
         self.assertLessEqual(abs(added - float(total) * units[unit]), 0.15 * units[unit])
 
 
+class InstallerSamplesSayWhatTheCodePrints(unittest.TestCase):
+    """code_audit_24 P3-8 to P3-12: samples typed by hand outside the
+    generated blocks, a sentence on a log read as the terminal's, pages that
+    described the generator as tables alone, and a sandbox that asked DNS."""
+
+    def test_the_refused_and_from_samples_are_generated(self):
+        import install
+
+        page = _page("installer.md")
+        refused = _generated(page, "check-refused")
+        self.assertRegex(refused, r"\n  \d+ files? [a-z ]+:\n")
+        self.assertIn("read by beetle_psx, pcsx_rearmed at", refused)
+        self.assertNotIn("opened at", page)
+        self.assertIn('"read by ', inspect.getsource(install.opened_line))
+        ending = _generated(page, "from-run")
+        self.assertRegex(ending, r"Done\. \d+ files installed\.\n  \d+ files copied from ")
+        self.assertNotIn("a line under\n`Done`", page)
+        self.assertNotIn("38 files copied from E:\\, 4 downloaded", page)
+
+    def test_one_line_per_file_is_said_of_a_log(self):
+        page = _page("installer.md")
+        at = page.index("<!-- generated: run-download -->")
+        before = page[page.rindex("\n\n", 0, at - 2):at]
+        self.assertIn("At a terminal one progress line", before)
+        self.assertIn("A pipe or a log gets one line per file", before)
+
+    def test_the_generator_pages_name_the_run_samples_and_step_7(self):
+        tools = _page("tools.md")
+        row = next(line for line in tools.splitlines()
+                   if line.startswith("| `generate_installer_doc.py`"))
+        self.assertIn("run samples", row)
+        self.assertIn("generate_installer_doc.py", next(
+            line for line in tools.splitlines() if line.startswith("| 7 |")))
+        self.assertIn("run samples", _page("installer.md").split(
+            "The tables of options, events, exit codes, keys and card markers", 1)[1][:600])
+        self.assertIn("generate_installer_doc.py", next(
+            line for line in _page("adding-a-platform.md").splitlines()
+            if line.startswith("7. ")))
+
+    def test_the_sandbox_looks_nothing_up(self):
+        import socket
+        from unittest import mock
+
+        import generate_installer_doc
+
+        def no_lookup(*_args: object) -> str:
+            raise AssertionError("the sandbox asked for a name")
+
+        with mock.patch.object(socket, "getfqdn", no_lookup), \
+                generate_installer_doc.Sandbox() as box:
+            self.assertEqual(box.server.server_name, "127.0.0.1")
+
+
 class OneResolutionChain(unittest.TestCase):
     """architecture.md drew path_suffix as the first step, before SHA1, while
     the code and verification-modes.md try it after every hash."""

tests/test_install.py

@@ -31,6 +31,13 @@ _spec = importlib.util.spec_from_file_location("install", REPO_ROOT / "install.p
 install = importlib.util.module_from_spec(_spec)
 _spec.loader.exec_module(install)
 
+sys.path.insert(0, str(REPO_ROOT / "tests"))
+from netguard import module_guard  # noqa: E402
+
+# No connection off the loopback and no card of the host reaches a test
+# (code_audit_24 P3-13): the module fails at its end otherwise.
+setUpModule, tearDownModule = module_guard("test_install")
+
 
 def _tempdir(test: unittest.TestCase) -> str:
     """A scratch directory under the repository's tmp/, removed after the test.

tests/test_install_tui.py

@@ -35,7 +35,7 @@ import types
 import unittest
 import warnings
 import zipfile
-from pathlib import Path, PureWindowsPath
+from pathlib import Path, PurePosixPath, PureWindowsPath
 from unittest import mock
 
 REPO_ROOT = Path(__file__).resolve().parent.parent
@@ -45,6 +45,13 @@ sys.path.insert(0, str(REPO_ROOT / "tests"))
 import install  # noqa: E402
 from test_install_app import make_card  # noqa: E402
 from test_install_selection import FakeRepository, _QuietHandler  # noqa: E402
+from netguard import module_guard  # noqa: E402
+
+# No connection off the loopback and no card of the host reaches a test, in
+# this process or one it starts (code_audit_24 P3-13): 261 connections to
+# GitHub left this module in a run, and two tests failed with an AmberELEC
+# card in the reader. The module fails at its end when one is tried.
+setUpModule, tearDownModule = module_guard("test_install_tui")
 
 try:
     import pyte
@@ -5801,9 +5808,15 @@ def _card_from_rules(root: Path, setup: install.CardSetup) -> Path:
             (root / path).parent.mkdir(parents=True, exist_ok=True)
             (root / path).write_text(text + "\n", encoding="utf-8")
             continue
+        if rule.method == "games_part":
+            # What the system writes beside its bios folder on that part.
+            (root / "bios").mkdir(exist_ok=True)
         for value in rule.values:
             (root / value).parent.mkdir(parents=True, exist_ok=True)
-            (root / value).write_text("", encoding="utf-8")
+            if rule.method == "games_part" and "." not in PurePosixPath(value).name:
+                (root / value).mkdir(exist_ok=True)
+            else:
+                (root / value).write_text("", encoding="utf-8")
     return root
 
 
@@ -13970,5 +13983,420 @@ class AuditTwentyThreeAndSixteen(unittest.TestCase):
                         words.index(install.TUI_INSTALL_ROW))
 
 
+def core_list(path: Path, files: list) -> Path:
+    path.write_text(json.dumps({"manifest_version": 2, "platform": "retroarch",
+                                "categorized": True, "base_destination": "system",
+                                "save_directory": {"folder": "saves", "by_core": True},
+                                "files": files}), encoding="utf-8")
+    return path
+
+
+class AuditTwentyFourAndSeventeen(unittest.TestCase):
+    """code_audit_24 and tui_audit_17: the cores the run accepts, one tick
+    list, a folder failure said as it happened, every proven card named,
+    reads that show, and tests that leave the host alone."""
+
+    setUp = LineModeAndScreenDecideAlike.setUp
+    line_run = LineModeAndScreenDecideAlike.line_run
+    entry = staticmethod(LineModeAndScreenDecideAlike.entry)
+    drive = AuditTwentyTwoAndFifteen.drive
+    first_screen = AuditTwentyTwoAndFifteen.first_screen
+    line_from = AuditTwentyThreeAndSixteen.line_from
+
+    # Root cause 1: the cores a choice is made among are the run's.
+
+    def files(self) -> list:
+        entry = self.entry
+        return [
+            entry("scph5501.bin", b"S" * 8, ["sony-playstation"]),
+            entry("pcsx/extra.bin", b"P" * 4, ["sony-playstation"], cores=["pcsx_rearmed"]),
+            entry("fc/disksys.rom", b"F" * 8, ["nintendo-famicom-disk"], cores=["mesen"]),
+            # Read from the save directory alone: set aside where it is not known.
+            entry("3ds/aes_keys.txt", b"K" * 4, ["nintendo-3ds"], cores=["azahar"],
+                  root="save"),
+            # Game data alone: --no-game-data leaves its core no file.
+            entry("quake/pak0.pak", b"Q" * 4, ["other"], cores=["tyrquake"],
+                  category="game_data"),
+        ]
+
+    def check_events(self, *extra: str) -> list:
+        listing = core_list(self.root / "cores.json", self.files())
+        dest = self.root / "dest"
+        dest.mkdir(exist_ok=True)
+        done = install_run("--platform", "retroarch", "--dest", str(dest), "--manifest",
+                           str(listing), "--check", "--events", *extra,
+                           env={"HOME": str(self.root / "home"),
+                                "RETROBIOS_INSTALL_OFFLINE": "1"})
+        return [json.loads(line) for line in done.stdout.splitlines() if line.startswith("{")]
+
+    def cores_state(self, events: list, no_game_data: bool = False) -> install.TuiState:
+        state = checked_state()
+        state.manifest = {"manifest_version": 2, "platform": "retroarch", "categorized": True,
+                          "files": self.files()}
+        state.set_aside = set(next(event for event in events
+                                   if event["event"] == "set_aside")["dests"])
+        state.no_game_data = no_game_data
+        return state
+
+    def test_cores_lists_what_the_run_accepts_and_an_untick_runs(self):
+        """tui_audit_17 P1-1: Cores listed 189 cores where --core accepted 181,
+        and an untick sent the 8 save-folder-only cores: "unknown core"."""
+        events = self.check_events()
+        self.assertEqual(next(e for e in events if e["event"] == "set_aside")["dests"],
+                         ["3ds/aes_keys.txt"])
+        state = self.cores_state(events)
+        self.assertNotIn("azahar", install.tui_choices(state)["cores"])
+        state.stack = ["setup", "plan", "options", "cores"]
+        row = next(r for r in install.tui_rows(state) if r.value == "mesen")
+        install._tick(state, row, False)
+        cores = [value for flag, value in install.tui_flags(state) if flag == "--core"]
+        self.assertEqual(sorted(cores), ["pcsx_rearmed", "tyrquake"])
+        listing = self.root / "cores.json"
+        done = install_run("--platform", "retroarch", "--dest", str(self.root / "dest"),
+                           "--manifest", str(listing), "--dry-run",
+                           *[f"--core={core}" for core in cores],
+                           env={"HOME": str(self.root / "home"),
+                                "RETROBIOS_INSTALL_OFFLINE": "1"})
+        self.assertNotIn("unknown core", done.stdout + done.stderr)
+
+    def test_both_modes_count_out_of_the_cores_the_run_keeps(self):
+        """code_audit_24 P3-3: line mode said "1 of 181 cores", the screen
+        "1 of 189", and 22 more under --no-game-data."""
+        for no_game_data in (False, True):
+            with self.subTest(no_game_data=no_game_data):
+                extra = ("--no-game-data",) if no_game_data else ()
+                state = self.cores_state(self.check_events(*extra), no_game_data)
+                expected = ["mesen", "pcsx_rearmed"] + ([] if no_game_data else ["tyrquake"])
+                self.assertEqual(install.tui_choices(state)["cores"], expected)
+                listing = core_list(self.root / "line.json", self.files())
+                # A folder not named system: the save directory is not known.
+                text, _asked = self.line_run(
+                    _args(manifest=listing, dest=self.root / "dest", declared_only=False,
+                          dry_run=True, no_game_data=no_game_data), ["c", "", "1"])
+                head = text.rsplit("Counted again for your choices", 1)[1]
+                self.assertIn(f"1 of {len(expected)} cores", head)
+                state.cores = ["mesen"]
+                self.assertIn(f"1 of {len(expected)}",
+                              next(r.label for r in install.tui_rows(
+                                  self.options(state)) if r.action == "cores"))
+
+    @staticmethod
+    def text(state: install.TuiState, cols: int, rows: int) -> str:
+        """The frame drawn, its folded lines joined into one text."""
+        return " ".join(" ".join(str(line).split()) for line in
+                        install.tui_view(state, cols, rows))
+
+    @staticmethod
+    def options(state: install.TuiState) -> install.TuiState:
+        state.stack = ["setup", "plan", "options"]
+        return state
+
+    def test_an_untick_keeps_the_other_systems_cores(self):
+        """code_audit_24 P3-1: with --system sony-playstation, one untick on
+        pcsx_rearmed cleared mesen, drawn ticked under the other systems."""
+        state = checked_state()
+        state.ticked = {"sony-playstation"}
+        state.stack = ["setup", "plan", "options", "cores"]
+        state.cores_all = True
+        boxes = {r.value: r.label[:3] for r in install.tui_rows(state) if r.action == "core"}
+        self.assertEqual(boxes, {"mesen": "[x]", "pcsx_rearmed": "[x]"})
+        row = next(r for r in install.tui_rows(state) if r.value == "pcsx_rearmed")
+        install._tick(state, row, None)
+        boxes = {r.value: r.label[:3] for r in install.tui_rows(state) if r.action == "core"}
+        self.assertEqual(boxes, {"mesen": "[x]", "pcsx_rearmed": "[ ]"})
+        # The --core given is the cores ticked, exactly.
+        self.assertEqual([v for f, v in install.tui_flags(state) if f == "--core"], ["mesen"])
+
+    def test_a_core_of_another_system_is_not_all_cores(self):
+        """code_audit_24 P3-2: mesen ticked alone with the PlayStation chosen
+        read "Cores: all", the run keeping none of pcsx_rearmed's files."""
+        state = checked_state()
+        state.ticked = {"sony-playstation"}
+        state.cores = ["mesen"]
+        options = self.options(state)
+        self.assertIn("Cores: 0 of 1", [r.label for r in install.tui_rows(options)])
+        state.stack = ["setup", "plan"]
+        self.assertIn("0 of 1 cores", self.text(state, 100, 30))
+        self.assertEqual(install.core_count_words(["mesen"], ["pcsx_rearmed"]), "0 of 1 cores")
+
+    def test_none_then_done_says_why_on_a_long_list(self):
+        """tui_audit_17 P2-4: on 189 cores the status and the sentence were
+        dropped, Done with nothing ticked did nothing visible."""
+        state = checked_state()
+        state.manifest = {**MANIFEST, "files": [
+            *MANIFEST["files"],
+            *({"dest": f"x/{n}.bin", "size": 1, "systems": ["sony-playstation"],
+               "cores": [f"core{n:03}"]} for n in range(60))]}
+        state.stack = ["setup", "plan", "options", "cores"]
+        state.focus["cores"] = install._first_item(state)
+        press(state, "n")
+        done = next(i for i, r in enumerate(install.tui_rows(state)) if r.action == "done")
+        state.focus["cores"] = done
+        press(state, "enter")
+        self.assertEqual(state.screen, "cores")
+        for cols, rows in ((80, 24), (40, 12)):
+            text = self.text(state, cols, rows)
+            self.assertIn("No core is ticked", text)
+            self.assertIn("Untick the cores", text)
+        press(state, "esc")
+        self.assertEqual(state.screen, "cores")
+
+    def test_core_rows_say_what_each_core_adds(self):
+        """tui_audit_17 P3-2: line mode counted each core's files, the
+        screen named the cores alone."""
+        state = checked_state()
+        state.stack = ["setup", "plan", "options", "cores"]
+        rows = {r.value: r.right for r in install.tui_rows(state) if r.action == "core"}
+        self.assertEqual(rows["pcsx_rearmed"], "1 file, 4 B")
+        state.cores_all = True
+        rows = {r.value: r.right for r in install.tui_rows(state) if r.action == "core"}
+        self.assertEqual(rows["mesen"], "1 file, 8.0 KB")
+
+    def test_one_core_has_no_cores_row(self):
+        """tui_audit_17 P3-3: a list with one core offered Cores, where line
+        mode asks nothing."""
+        state = checked_state()
+        state.manifest = {**MANIFEST, "files": [
+            entry for entry in MANIFEST["files"] if entry["dest"] != "fc/disksys.rom"]}
+        self.assertNotIn("cores", [r.action for r in install.tui_rows(self.options(state))])
+
+    # Root cause 2: one tick list.
+
+    def test_the_three_lists_open_and_answer_alike(self):
+        """tui_audit_17 P3-1: Choose systems opened on None, A unticking
+        every system, Cores closed on A, regions ticked on A."""
+        for route in ("both", "gptokeyb", "muxterm", "miyoo"):
+            for screen, opener in (("systems", ("plan", "systems")),
+                                   ("cores", ("options", "cores")),
+                                   ("regions", ("options", "regions"))):
+                with self.subTest(route=route, screen=screen):
+                    state = checked_state()
+                    state.pad = route
+                    if opener[0] == "options":
+                        press(state, "o")
+                    state.focus[state.screen] = next(
+                        i for i, r in enumerate(install.tui_rows(state))
+                        if r.action == opener[1])
+                    press(state, "enter")
+                    self.assertEqual(state.screen, screen)
+                    rows = install.tui_rows(state)
+                    focused = rows[state.focus[screen]]
+                    self.assertIn(focused.action, install.TUI_TICK_ROWS)
+                    self.assertEqual([r.action for r in rows[-2:]], ["none", "done"])
+                    hint = install._TUI_VIEWS[screen](state, 78, 21)[2]
+                    self.assertEqual(hint[:2], ("A/Enter Tick", "B/Esc Done"))
+                    before = install.tui_flags(state)
+                    press(state, "enter")
+                    self.assertEqual(state.screen, screen)
+                    self.assertNotEqual(install.tui_flags(state), before)
+
+    # Root cause 3: a folder failure as it happened.
+
+    def test_a_folder_that_cannot_be_created_ends_on_its_reason(self):
+        """tui_audit_17 P2-1: the result said "22 files not fetched
+        (RETROBIOS_INSTALL_OFFLINE=1)" and sent the user for a pack."""
+        for os_type in ("linux", "android"):
+            with self.subTest(os_type=os_type):
+                state = checked_state()
+                state.os_type = os_type
+                install.tui_update(state, Key("enter"))
+                for event in ({"event": "error", "stage": "dest", "reason": "not_writable",
+                               "platform": "retroarch",
+                               "message": f"{SYSTEM_DIR} cannot be created: Permission denied"},
+                              {"event": "summary", "mode": "install", "installed": 0,
+                               "up_to_date": 0, "pending": 4, "failed": [], "skipped": [],
+                               "left_out": [], "kept": [], "interrupted": False}):
+                    install.tui_receive(state, ("event", state.run_id, event))
+                install.tui_receive(state, ("ended", state.run_id, 2, []))
+                title, lines = install.tui_outcome(state)
+                text = " ".join(map(str, lines))
+                self.assertEqual(title, "Nothing installed")
+                self.assertIn("cannot be created (permission denied)", text)
+                self.assertNotIn("not fetched", text)
+                self.assertNotIn("not in", text.split("cannot be created")[0])
+                self.assertEqual("termux-setup-storage" in text, os_type == "android")
+                self.assertNotIn("sudo", text if os_type == "android" else "")
+
+    def test_android_never_offers_sudo_and_a_phone_plan_says_why(self):
+        """tui_audit_17 P2-2: Termux was offered sudo, and at 40x12 the plan
+        offered Install anyway with no word of why."""
+        hint = install.Invocation()
+        hint.os_type = "android"
+        remedy = install.write_remedy(Path("/storage/emulated/0/RetroArch/system"),
+                                      "retroarch", hint)
+        self.assertEqual(remedy, [install.TERMUX_STORAGE_WORDS])
+        state = checked_state({"free": 50 * 1024 ** 3, "writable": False, "cores": []})
+        state.os_type = "android"
+        for cols, rows in ((40, 12), (80, 24)):
+            text = self.text(state, cols, rows)
+            self.assertIn("You cannot write to this folder", text)
+            self.assertNotIn("sudo", text)
+
+    # Root cause 4: every proven card named, the real marker said.
+
+    def test_an_arkos_card_is_found_beside_an_amberelec_card(self):
+        """tui_audit_17 P2-3, code_audit_24 P3-6: an ArkOS card its bgmusic
+        or launchimages prove was named nowhere, and its route said it
+        could not tell it."""
+        games = games_part(self.root / "media" / "GAMES")
+        for marker in ("bgmusic", "launchimages"):
+            with self.subTest(marker=marker):
+                ark = self.drive(f"ARK_{marker}", ("bios", "nes", marker))
+                self.assertEqual(install.card_system(ark), ("retroarch", ark / "bios", "ArkOS"))
+                for name in ("ArkOS", "dArkOS"):
+                    setup = install.card_setup(name, "retroarch")
+                    self.assertEqual(install._card_is(setup, ark)[0], "own", name)
+                state = self.first_screen([games, ark])
+                text = self.text(state, 80, 24)
+                self.assertIn(f"ArkOS SD card (ARK_{marker})", text)
+                self.assertIn("AmberELEC SD card (GAMES)", text)
+
+    def test_the_emuelec_refusal_names_its_file(self):
+        """code_audit_24 P3-7: the refusal named bezels, which AmberELEC's
+        card holds too."""
+        games = games_part(self.root / "media" / "GAMES")
+        (games / "bezels").mkdir()
+        setup = install.card_setup("EmuELEC", "emuelec")
+        choice = install._not_the_card(setup, games, games, "AmberELEC")
+        self.assertIn("bezels/default.cfg", choice.detail)
+
+    # Root cause 5: the reads before the menu show.
+
+    def test_the_reads_before_the_menu_show_a_count(self):
+        """code_audit_24 P3-4: a rerun read every file before the menu, one at
+        a time and with nothing on screen."""
+        payload = b"R" * 16
+        (self.here / "a.bin").write_bytes(payload)
+        listing = core_list(self.root / "read.json",
+                            [self.entry("a.bin", payload, ["sony-playstation"])])
+        text, _asked = self.line_run(_args(manifest=listing, dest=self.here,
+                                           declared_only=False), [])
+        self.assertIn("\r  read 1/1", text)
+        self.assertLess(text.index("read 1/1"), text.index("every one in place"))
+
+    # Root cause 6: every other item.
+
+    def test_offline_the_plan_promises_no_replacement_it_cannot_make(self):
+        """code_audit_24 P3-5: offline, the plan said a wrong copy no folder
+        holds "is replaced"."""
+        state = checked_state()
+        with mock.patch.dict(os.environ, {install.OFFLINE_VARIABLE: "1"}):
+            text = self.text(state, 100, 30)
+        self.assertIn("1 wrong copy", text)
+        self.assertNotIn("wrong copy is replaced", text)
+
+    def test_options_name_the_plans_bios_folder(self):
+        """tui_audit_17 P3-6: AmberELEC's Options read the games part, its
+        plan the bios folder below it."""
+        state = checked_state()
+        state.manifest = {**MANIFEST, "files": [
+            {**entry, "dest": f"bios/{entry['dest']}"} for entry in MANIFEST["files"]]}
+        state.dest = Path("/media/me/GAMES")
+        row = next(r for r in install.tui_rows(self.options(state)) if r.action == "folder")
+        self.assertEqual(row.label, "BIOS folder: /media/me/GAMES/bios")
+
+    def test_finished_with_errors_says_a_rerun_retries(self):
+        """tui_audit_17 P3-7: the screen never said a rerun retries the files
+        that failed, and line mode named each failure twice."""
+        state = checked_state()
+        install.tui_update(state, Key("enter"))
+        install.tui_receive(state, ("event", state.run_id, {
+            "event": "summary", "mode": "install", "installed": 3, "up_to_date": 0,
+            "pending": 1, "failed": [{"dest": "gba_bios.bin", "reason": "timed out"}],
+            "skipped": [], "left_out": [], "kept": [], "interrupted": False}))
+        install.tui_receive(state, ("ended", state.run_id, 1, []))
+        title, lines = install.tui_outcome(state)
+        self.assertEqual(title, "Finished with errors")
+        self.assertIn("Run it again to retry only those.", lines)
+        # Line mode: the FAILED line of the progress names it, the end not again.
+        install.SAID_FAILED.clear()
+        install.SAID_FAILED.add("gba_bios.bin")
+        self.addCleanup(install.SAID_FAILED.clear)
+        out = io.StringIO()
+        with contextlib.redirect_stdout(out), contextlib.redirect_stderr(out), \
+                contextlib.suppress(SystemExit):
+            install._report_outcome([Path("/b")], 3, 0, 1, 0, False,
+                                    failures=[("gba_bios.bin", "timed out")])
+        self.assertNotIn("gba_bios.bin", out.getvalue())
+        self.assertIn("Run the same command again to retry only those.", out.getvalue())
+
+    def test_below_40_columns_no_word_is_broken(self):
+        """tui_audit_17 P3-8: the reason line, Found and Install for were
+        left to the terminal, which broke "/media/moi/" and "ONION/BIOS"."""
+        with mock.patch.object(install, "terminal_size", return_value=(39, 11)), \
+                mock.patch.object(install, "_is_terminal", return_value=True):
+            for text in ("  Found Onion at /media/moi/ONION/BIOS (RetroArch files)",
+                         "The window is 39x11: questions come line by line "
+                         "(40x12 for the full screen)."):
+                lines = install.fold_line(text).split("\n")
+                self.assertTrue(all(len(line) <= 38 for line in lines), lines)
+                self.assertEqual(" ".join(" ".join(lines).split()), " ".join(text.split()))
+
+    def test_the_narrowing_line_is_a_sentence(self):
+        """tui_audit_17 P3-4: the plan read "--region." on a line alone."""
+        state = checked_state()
+        state.regions = ["japan"]
+        text = self.text(state, 100, 30)
+        self.assertIn("For your choice: regions ranked.", text)
+        self.assertNotIn(" --region.", text)
+
+    def test_offline_choice_of_systems_is_never_about_0_files(self):
+        """tui_audit_17 P3-5: "About 0 files, 0 B, for 10 of 11 systems"."""
+        state = checked_state()
+        state.ticked = {"sony-playstation"}
+        with mock.patch.dict(os.environ, {install.OFFLINE_VARIABLE: "1"}):
+            text = self.text(state, 100, 30)
+        self.assertNotIn("About 0 files", text)
+        self.assertIn("need the internet", text)
+
+    def test_a_phone_bar_after_a_tap_keeps_quit_and_one_wording(self):
+        """tui_audit_17 P3-11: at 40 columns on Android the armed bar dropped
+        Esc Quit and said "click", the row "tap again"."""
+        state = fresh_state()
+        state.os_type = "android"
+        state.mouse = True
+        state.stack = ["setup"]
+        install.tui_view(state, 40, 12)
+        state.tapped = install._tapped_row(state)
+        frame = install.tui_view(state, 40, 12)
+        text = "\n".join(map(str, frame))
+        self.assertNotIn("click", text)
+        self.assertIn("tap again", text)
+        self.assertIn("Esc Quit", str(frame[-1]))
+
+    def test_the_offline_screen_names_the_setups_list(self):
+        """tui_audit_17 P3-12: the offline screen said install/<platform>.json
+        for AmberELEC, chosen one screen before."""
+        inbox: queue.Queue = queue.Queue()
+        install.LOCAL.reset()
+        with mock.patch.dict(os.environ, {install.OFFLINE_VARIABLE: "1"}):
+            install._tui_fetch("amberelec", inbox, io.StringIO())
+        message = inbox.get_nowait()
+        self.assertIn("install/amberelec.json", " ".join(message[3]))
+
+    # Root cause 7: the tests leave the host alone.
+
+    def test_no_connection_leaves_the_loopback_nor_a_card_comes_in(self):
+        """code_audit_24 P3-13: 261 connections to GitHub left this module,
+        and tests failed with an AmberELEC card in the reader."""
+        import socket  # noqa: PLC0415
+
+        log = Path(os.environ["RETROBIOS_TEST_NETLOG"])
+        before = log.read_text(encoding="utf-8")
+        self.addCleanup(log.write_text, before, encoding="utf-8")
+        with self.assertRaisesRegex(OSError, "makes no request"):
+            socket.create_connection(("192.0.2.1", 80), timeout=1)
+        child = subprocess.run(
+            [sys.executable, "-c", "import os, socket\n"
+             "print(os.path.ismount('/media/x'), os.path.ismount('/mnt/d'))\n"
+             "socket.create_connection(('192.0.2.1', 80), 1)"],
+            capture_output=True, text=True, check=False, timeout=60)
+        self.assertEqual(child.stdout.strip(), "False False")
+        self.assertIn("makes no request", child.stderr)
+        self.assertEqual(len(log.read_text(encoding="utf-8").splitlines()),
+                         len(before.splitlines()) + 2)
+        self.assertFalse(os.path.ismount("/media/x"))
+
+
 if __name__ == "__main__":
     unittest.main()