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test/computer-use.test.js

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+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { ComputerUseSession } from '../computer-use/session.js';
+
+test('computer use requires an explicit grant and enforces its step budget', () => {
+  let now = 1000;
+  const session = new ComputerUseSession({ stepsMax: 2, clock: () => now });
+  assert.throws(() => session.beginStep(), /inactive/);
+  assert.deepEqual(session.grant({ persist: true }).restore_token_present, true);
+  session.beginStep();
+  session.beginStep();
+  assert.throws(() => session.beginStep(), /budget/);
+  assert.equal(session.status().steps_used, 2);
+  session.revoke();
+  assert.equal(session.status().active, false);
+  now += 1;
+});
+
+test('computer use expires its wall clock grant', () => {
+  let now = 0;
+  const session = new ComputerUseSession({ clock: () => now });
+  session.grant();
+  now = 180001;
+  assert.throws(() => session.beginStep(), /expired/);
+  assert.equal(session.status().backend, 'none');
+});