Checkpoint web parity through Chromium input tasks

web/tests/unit/library-linked-missing.test.mjs

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+import assert from "node:assert/strict";
+import crypto from "node:crypto";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { pathToFileURL } from "node:url";
+import test from "node:test";
+import ts from "typescript";
+
+const root = path.resolve(import.meta.dirname, "../../..");
+const temporary = fs.mkdtempSync(path.join(os.tmpdir(), "library-linked-missing-unit-"));
+const sourcePath = path.join(root, "web/protocol/library-linked-missing.ts");
+const transpiled = ts.transpileModule(fs.readFileSync(sourcePath, "utf8"), {
+  compilerOptions: { module: ts.ModuleKind.ES2022, target: ts.ScriptTarget.ES2022 },
+  fileName: sourcePath,
+  reportDiagnostics: true,
+});
+assert.deepEqual(transpiled.diagnostics, []);
+fs.writeFileSync(path.join(temporary, "library-linked-missing.mjs"), transpiled.outputText);
+const missing = await import(pathToFileURL(path.join(temporary, "library-linked-missing.mjs")));
+const manifest = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-03I/manifest.json"), "utf8"));
+const sha256 = (file) => crypto.createHash("sha256").update(fs.readFileSync(path.join(root, file))).digest("hex");
+const library = (value) => `library:${String(value).repeat(64).slice(0, 64)}`;
+const digest = (value) => crypto.createHash("sha256").update(String(value)).digest("hex");
+const reference = (sourceLibraryId, generation, revision, marker, status = "AVAILABLE") => ({
+  sourceLibraryId,
+  sourceLocator: `project://libraries/${marker}.blend`,
+  sourceSha256: digest(`${marker}-source`),
+  sourceGeneration: generation,
+  sourceRevision: revision,
+  dataBlockIds: [`Object/${marker}`, `Mesh/${marker}`],
+  status,
+  placeholder: status === "MISSING" ? {
+    kind: "MISSING_LIBRARY",
+    sourceLibraryId,
+    dataBlockIds: [`Object/${marker}`, `Mesh/${marker}`],
+  } : null,
+});
+
+test("M12-03I binds the missing-library protocol and evidence artifacts", () => {
+  assert.equal(manifest.task, "M12-03I");
+  assert.equal(manifest.parentTask, "M12-03H");
+  assert.equal(manifest.nextTask, "M12-03J");
+  for (const artifact of Object.values(manifest.artifacts)) assert.equal(sha256(artifact.path), artifact.sha256, artifact.path);
+});
+
+test("M12-03I marks only the matching reference missing and preserves its original source", () => {
+  const sourceLibraryId = library("a");
+  const otherLibraryId = library("b");
+  const current = reference(sourceLibraryId, 4, 9, "primary");
+  const other = reference(otherLibraryId, 1, 2, "other");
+  const state = { schemaVersion: 1, references: [current, other] };
+  const decision = missing.markLinkedLibraryMissing(state, {
+    schemaVersion: 1,
+    operation: "MARK_MISSING",
+    sourceLibraryId,
+    sourceLocator: current.sourceLocator,
+    sourceSha256: current.sourceSha256,
+    expectedGeneration: 4,
+    expectedRevision: 9,
+  });
+  assert.equal(decision.status, "MARKED");
+  assert.equal(decision.code, null);
+  assert.deepEqual(decision.state.references[0], { ...current, status: "MISSING", placeholder: {
+    kind: "MISSING_LIBRARY", sourceLibraryId, dataBlockIds: current.dataBlockIds,
+  } });
+  assert.deepEqual(decision.state.references[1], other);
+  assert.deepEqual(state.references, [current, other]);
+});
+
+test("M12-03I preserves the reference on stale generation and source hash drift", () => {
+  const sourceLibraryId = library("c");
+  const current = reference(sourceLibraryId, 2, 5, "stable");
+  const state = { schemaVersion: 1, references: [current] };
+  const base = {
+    schemaVersion: 1,
+    operation: "MARK_MISSING",
+    sourceLibraryId,
+    sourceLocator: current.sourceLocator,
+    sourceSha256: current.sourceSha256,
+    expectedGeneration: 2,
+    expectedRevision: 5,
+  };
+  assert.equal(missing.markLinkedLibraryMissing(state, { ...base, expectedRevision: 6 }).code, "REVISION_CONFLICT");
+  assert.equal(missing.markLinkedLibraryMissing(state, { ...base, sourceSha256: digest("different") }).code, "ASSET_SOURCE_HASH_MISMATCH");
+  assert.deepEqual(state.references, [current]);
+});
+
+test("M12-03I rejects undeclared fields, duplicate identities, and invalid placeholders", () => {
+  const sourceLibraryId = library("d");
+  const current = reference(sourceLibraryId, 1, 1, "invalid");
+  assert.throws(() => missing.parseLinkedMissingRequest({
+    schemaVersion: 1,
+    operation: "MARK_MISSING",
+    sourceLibraryId,
+    sourceLocator: current.sourceLocator,
+    sourceSha256: current.sourceSha256,
+    expectedGeneration: 1,
+    expectedRevision: 1,
+    future: true,
+  }), { code: "TASK_VALIDATION_FAILED" });
+  assert.throws(() => missing.parseLinkedMissingState({ schemaVersion: 1, references: [current, current] }), { code: "TASK_VALIDATION_FAILED" });
+  assert.throws(() => missing.parseLinkedLibraryReference({ ...current, status: "MISSING", placeholder: null }), { code: "TASK_VALIDATION_FAILED" });
+  assert.throws(() => missing.parseLinkedLibraryReference({ ...current, status: "AVAILABLE", placeholder: { kind: "MISSING_LIBRARY", sourceLibraryId, dataBlockIds: current.dataBlockIds } }), { code: "TASK_VALIDATION_FAILED" });
+});
+
+test.after(() => fs.rmSync(temporary, { recursive: true, force: true }));