From 06ad1d10d33ef47246c45571e36474c3633f8487 Mon Sep 17 00:00:00 2001
From: Abdessamad Derraz <3028866+Abdess@users.noreply.github.com>
Date: Sat, 10 Oct 2026 07:32:21 +0200
Subject: [PATCH] fix: serve armsx2 the vulkan shader it reads

---
 emulators/armsx2.yml           |   1 +
 tests/test_bundled_identity.py | 142 +++++++++++++++++++++++++++++++++
 2 files changed, 143 insertions(+)
 create mode 100644 tests/test_bundled_identity.py

diff --git a/emulators/armsx2.yml b/emulators/armsx2.yml
index e996e4d5..99c842e9 100644
--- a/emulators/armsx2.yml
+++ b/emulators/armsx2.yml
@@ -506,6 +506,7 @@ files:
   - name: cas.glsl
     path: pcsx2/resources/shaders/vulkan/cas.glsl
     standalone_path: resources/shaders/vulkan/cas.glsl
+    sha1: "005cecf1a5e20b05407d55d0aad22cf81ad66c31"
     required: false
     bundled: true
     description: "Vulkan contrast adaptive sharpening shader"
diff --git a/tests/test_bundled_identity.py b/tests/test_bundled_identity.py
new file mode 100644
index 00000000..962093d3
--- /dev/null
+++ b/tests/test_bundled_identity.py
@@ -0,0 +1,142 @@
+"""A bundled file is identified by its bytes, not its name.
+
+ZEsarUX ships ace.rom and a patched alternate_roms/ace.rom, Azahar a default
+keys.txt, ARMSX2 an OpenGL and a Vulkan cas.glsl. Declared without a hash,
+each resolved by its bare name to whatever shared it: the patched ROM at the
+original's slot, the Wii U disc keys at the 3DS key slot, the OpenGL shader
+at the Vulkan one. An entry with a hash resolves by content first.
+
+529 bundled entries still carry neither a hash nor `unsourceable:`. The
+count per profile may only fall: a new entry is written with the hash of
+the file the emulator ships.
+"""
+
+from __future__ import annotations
+
+import hashlib
+import sys
+import unittest
+from pathlib import Path
+
+import yaml
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(REPO_ROOT / "scripts"))
+
+from common import load_database, resolve_local_file  # noqa: E402
+
+UNIDENTIFIED = {
+    "abuse": 3,
+    "aethersx2": 1,
+    "altirra": 2,
+    "arcadeflashweb": 8,
+    "armsx2": 58,
+    "ax360e": 2,
+    "bluemsx": 14,
+    "c64-emu": 8,
+    "cdogs": 16,
+    "citra-mmj": 9,
+    "drastic": 10,
+    "eka2l1": 89,
+    "emucorev": 1,
+    "emucorex": 23,
+    "epsxe": 2,
+    "fpse": 7,
+    "fpse-ng": 7,
+    "future-pinball": 18,
+    "future-pinball-fploader": 54,
+    "gba-emu": 1,
+    "hakux": 1,
+    "hcl": 3,
+    "hurrican": 1,
+    "idtech4a++": 1,
+    "ikemen": 32,
+    "ines": 2,
+    "j2me-loader": 14,
+    "jl-mod": 22,
+    "kemulator": 4,
+    "mastergear": 2,
+    "mfme": 58,
+    "msx-emu": 10,
+    "my-boy": 1,
+    "neo-emu": 3,
+    "nethersx2": 2,
+    "nethersx2-turnip": 2,
+    "nethersx2-turnip-classic": 2,
+    "nuance": 1,
+    "pcee2": 1,
+    "pcsx2": 1,
+    "project64": 9,
+    "sixtyforce": 5,
+    "skyline": 9,
+    "ssf": 1,
+    "supermodel-dojo": 4,
+    "x1-box": 1,
+    "xendroid": 1,
+    "xm6pro68k": 2,
+    "yaps2": 1,
+}
+
+
+def _unidentified() -> dict[str, int]:
+    counts: dict[str, int] = {}
+    for path in sorted((REPO_ROOT / "emulators").glob("*.yml")):
+        document = yaml.safe_load(path.read_text(encoding="utf-8")) or {}
+        for entry in document.get("files") or []:
+            if not isinstance(entry, dict) or not entry.get("bundled"):
+                continue
+            if entry.get("unsourceable") or entry.get("type") == "directory":
+                continue
+            if any(entry.get(key) for key in ("sha1", "md5", "sha256", "crc32")):
+                continue
+            counts[path.stem] = counts.get(path.stem, 0) + 1
+    return counts
+
+
+class BundledFilesCarryTheirIdentity(unittest.TestCase):
+    def test_no_profile_adds_an_unidentified_bundled_file(self):
+        grown = {
+            name: (count, UNIDENTIFIED.get(name, 0))
+            for name, count in _unidentified().items()
+            if count > UNIDENTIFIED.get(name, 0)
+        }
+        self.assertEqual(grown, {}, "bundled entries need the shipped file's hash")
+
+
+class TheFixedEntriesGetTheirOwnBytes(unittest.TestCase):
+    CASES = (
+        ("azahar", "sysdata/keys.txt"),
+        ("azaharplus", "sysdata/keys.txt"),
+        ("zesarux", "ace.rom"),
+        ("zesarux", "alternate_roms/ace.rom"),
+        ("zesarux", "coleco.rom"),
+        ("zesarux", "trdos.rom"),
+        ("armsx2", "pcsx2/resources/shaders/vulkan/cas.glsl"),
+    )
+
+    def test_each_resolves_to_the_declared_hash(self):
+        db_path = REPO_ROOT / "database.json"
+        if not db_path.exists():
+            self.skipTest("database.json is not built")
+        db = load_database(str(db_path))
+        for profile, destination in self.CASES:
+            with self.subTest(profile=profile, destination=destination):
+                document = yaml.safe_load(
+                    (REPO_ROOT / "emulators" / f"{profile}.yml").read_text(encoding="utf-8")
+                )
+                entry = next(
+                    e for e in document["files"]
+                    if (e.get("path") or e["name"]) == destination
+                )
+                local, _status = resolve_local_file(
+                    {**entry, "source_profile": profile}, db, dest_hint=destination
+                )
+                self.assertIsNotNone(local)
+                self.assertEqual(
+                    hashlib.sha1((REPO_ROOT / local).read_bytes()).hexdigest(),
+                    entry["sha1"],
+                )
+
+
+if __name__ == "__main__":
+    unittest.main()