Checkpoint web parity through Chromium input tasks

web/tests/unit/script-sandbox-dispose.test.mjs

@@ -0,0 +1,25 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { createRequire } from "node:module";
+import test from "node:test";
+import ts from "typescript";
+
+const root = path.resolve(import.meta.dirname, "../../..");
+const temporary = fs.mkdtempSync(path.join(os.tmpdir(), "script-sandbox-dispose-"));
+const source = fs.readFileSync(path.join(root, "web/app/src/testing/script-sandbox-dispose.ts"), "utf8");
+fs.writeFileSync(path.join(temporary, "script-sandbox-dispose.cjs"), ts.transpileModule(source, { compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2022 }, fileName: "script-sandbox-dispose.ts" }).outputText);
+const protocol = createRequire(import.meta.url)(path.join(temporary, "script-sandbox-dispose.cjs"));
+
+test("M13-03F emits zero-resource disposal receipts", () => {
+  assert.deepEqual(protocol.createScriptSandboxDisposeReceipt(1), { schemaVersion: 1, disposeCount: 1, idempotent: false, resources: { messagePorts: 0, timers: 0, abortControllers: 0, transferableBuffers: 0, pendingRequests: 0, cacheReferences: 0 }, lateTimerMessages: 0 });
+  assert.deepEqual(protocol.createScriptSandboxDisposeReceipt(2), { schemaVersion: 1, disposeCount: 2, idempotent: true, resources: { messagePorts: 0, timers: 0, abortControllers: 0, transferableBuffers: 0, pendingRequests: 0, cacheReferences: 0 }, lateTimerMessages: 0 });
+});
+
+test("M13-03F rejects an invalid disposal count", () => {
+  assert.throws(() => protocol.createScriptSandboxDisposeReceipt(0), /SCRIPT_SANDBOX_DISPOSE_INVALID/);
+  assert.throws(() => protocol.createScriptSandboxDisposeReceipt(1.5), /SCRIPT_SANDBOX_DISPOSE_INVALID/);
+});
+
+test.after(() => fs.rmSync(temporary, { recursive: true, force: true }));