Checkpoint web parity through Chromium input tasks

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

@@ -0,0 +1,60 @@
+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-mutation-unit-"));
+const transpile = (sourceName, outputName, replacements = []) => {
+  const sourcePath = path.join(root, "web/protocol", sourceName);
+  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, outputName), replacements.reduce((source, [from, to]) => source.replaceAll(from, to), transpiled.outputText));
+};
+transpile("capability-gates.ts", "capability-gates.mjs");
+transpile("library-linked-mutation.ts", "library-linked-mutation.mjs", [["from \"./capability-gates\"", "from \"./capability-gates.mjs\""]]);
+const linked = await import(pathToFileURL(path.join(temporary, "library-linked-mutation.mjs")));
+const manifest = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-03G/manifest.json"), "utf8"));
+const sha256 = (file) => crypto.createHash("sha256").update(fs.readFileSync(path.join(root, file))).digest("hex");
+const base = (operation = "MESH_GEOMETRY") => ({
+  schemaVersion: 1,
+  operation,
+  dataBlockId: "mesh:M12 Link Mesh",
+  baseRevision: 7,
+  owner: "SOURCE_LIBRARY",
+  linkedLibrary: true,
+  readOnly: true,
+});
+
+test("M12-03G binds the linked writer protocol and evidence artifacts", () => {
+  assert.equal(manifest.task, "M12-03G");
+  assert.equal(manifest.parentTask, "M12-03F");
+  assert.equal(manifest.nextTask, "M12-03H");
+  for (const artifact of Object.values(manifest.artifacts)) assert.equal(sha256(artifact.path), artifact.sha256, artifact.path);
+});
+
+test("M12-03G blocks every linked data writer with the stable mutation code", () => {
+  assert.equal(linked.LINKED_DATA_WRITER_OPERATIONS.length, 6);
+  for (const operation of linked.LINKED_DATA_WRITER_OPERATIONS) {
+    const gate = linked.gateLinkedDataMutation(base(operation), 7);
+    assert.equal(gate.status, "BLOCKED");
+    assert.deepEqual(gate.issues.map((issue) => issue.code), ["LINKED_DATA_MUTATION_BLOCKED"]);
+    assert.equal(gate.issues[0].recoverable, false);
+    assert.deepEqual(linked.parseLinkedDataMutation(base(operation)), { ...base(operation) });
+  }
+});
+
+test("M12-03G rejects stale, malformed, and ownership-substituted writes before Main", () => {
+  assert.equal(linked.gateLinkedDataMutation(base(), 8).issues[0].code, "REVISION_CONFLICT");
+  assert.equal(linked.gateLinkedDataMutation({ ...base(), owner: "LOCAL_MAIN", linkedLibrary: false, readOnly: false }, 7).issues[0].code, "LINKED_DATA_MUTATION_BLOCKED");
+  assert.equal(linked.gateLinkedDataMutation({ ...base(), future: true }, 7).issues[0].code, "TASK_VALIDATION_FAILED");
+  assert.equal(linked.gateLinkedDataMutation({ ...base(), operation: "UNKNOWN" }, 7).issues[0].code, "TASK_VALIDATION_FAILED");
+});