pkgs/test/test/runner/timeout_test.dart

// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@TestOn('vm')

import 'package:test_descriptor/test_descriptor.dart' as d;

import 'package:test/test.dart';

import '../io.dart';

void main() {
  test('respects top-level @Timeout declarations', () async {
    await d.file('test.dart', '''
@Timeout(const Duration(seconds: 0))

import 'dart:async';

import 'package:test/test.dart';

void main() {
  test("timeout", () async {
    await Future.delayed(Duration.zero);
  });
}
''').create();

    var test = await runTest(['test.dart']);
    expect(
        test.stdout,
        containsInOrder(
            ['Test timed out after 0 seconds.', '-1: Some tests failed.']));
    await test.shouldExit(1);
  });

  test('respects the --timeout flag', () async {
    await d.file('test.dart', '''
import 'dart:async';

import 'package:test/test.dart';

void main() {
  test("timeout", () async {
    await Future.delayed(Duration.zero);
  });
}
''').create();

    var test = await runTest(['--timeout=0s', 'test.dart']);
    expect(
        test.stdout,
        containsInOrder(
            ['Test timed out after 0 seconds.', '-1: Some tests failed.']));
    await test.shouldExit(1);
  });

  test('timeout is reset with each retry', () async {
    await d.file('test.dart', '''
import 'dart:async';

import 'package:test/test.dart';

void main() {
  var runCount = 0;
  test("timeout", () async {
    runCount++;
    if (runCount <=2) {
      await Future.delayed(Duration(milliseconds: 1000));
    }
  }, retry: 3);
}
''').create();

    var test = await runTest(['--timeout=400ms', 'test.dart']);
    expect(
        test.stdout,
        containsInOrder([
          'Test timed out after 0.4 seconds.',
          'Test timed out after 0.4 seconds.',
          '+1: All tests passed!'
        ]));
    await test.shouldExit(0);
  });

  test('the --timeout flag applies on top of the default 30s timeout',
      () async {
    await d.file('test.dart', '''
import 'dart:async';

import 'package:test/test.dart';

void main() {
  test("no timeout", () async {
    await Future.delayed(Duration(milliseconds: 250));
  });

  test("timeout", () async {
    await Future.delayed(Duration(milliseconds: 750));
  });
}
''').create();

    // This should make the timeout about 500ms, which should cause exactly one
    // test to fail.
    var test = await runTest(['--timeout=0.016x', 'test.dart']);
    expect(
        test.stdout,
        containsInOrder(
            ['Test timed out after 0.4 seconds.', '-1: Some tests failed.']));
    await test.shouldExit(1);
  });
}