Advance Blender 5.2 web parity through M12-03D

web/tests/unit/asset-preview-dedup.test.mjs

@@ -0,0 +1,25 @@
+import assert from "node:assert/strict";
+import crypto from "node:crypto";
+import fs from "node:fs";
+import path from "node:path";
+import test from "node:test";
+
+const root = path.resolve(import.meta.dirname, "../../..");
+const manifest = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-02E/manifest.json"), "utf8"));
+const sha256 = (file) => crypto.createHash("sha256").update(fs.readFileSync(path.join(root, file))).digest("hex");
+
+test("M12-02E binds payload deduplication and metadata-isolation evidence", () => {
+  assert.equal(manifest.task, "M12-02E");
+  assert.equal(manifest.enablingTask, true);
+  assert.equal(manifest.parityStateChange, false);
+  assert.equal(manifest.nextTask, "M12-02F");
+  assert.deepEqual(manifest.claims, [
+    "ONE_CONTENT_HASH_ONE_OPFS_PAYLOAD",
+    "DISTINCT_ASSET_IDENTITY_PRESERVED",
+    "DISTINCT_ASSET_METADATA_PRESERVED",
+    "REOPENED_HEAD_VERIFIED",
+  ]);
+  for (const artifact of Object.values(manifest.artifacts)) {
+    assert.equal(sha256(artifact.path), artifact.sha256, artifact.path);
+  }
+});