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539 lines
20 KiB
Dart
539 lines
20 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// @dart = 2.8
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import 'dart:math' as math;
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import 'package:meta/meta.dart';
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import '../asset.dart';
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import '../base/common.dart';
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import '../base/file_system.dart';
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import '../build_info.dart';
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import '../bundle_builder.dart';
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import '../devfs.dart';
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import '../device.dart';
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import '../globals_null_migrated.dart' as globals;
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import '../project.dart';
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import '../runner/flutter_command.dart';
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import '../test/coverage_collector.dart';
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import '../test/event_printer.dart';
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import '../test/runner.dart';
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import '../test/test_wrapper.dart';
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import '../test/watcher.dart';
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/// The name of the directory where Integration Tests are placed.
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///
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/// When there are test files specified for the test command that are part of
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/// this directory, *relative to the package root*, the files will be executed
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/// as Integration Tests.
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const String _kIntegrationTestDirectory = 'integration_test';
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/// A command to run tests.
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///
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/// This command has two modes of execution:
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///
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/// ## Unit / Widget Tests
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///
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/// These tests run in the Flutter Tester, which is a desktop-based Flutter
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/// embedder. In this mode, tests are quick to compile and run.
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///
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/// By default, if no flags are passed to the `flutter test` command, the Tool
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/// will recursively find all files within the `test/` directory that end with
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/// the `*_test.dart` suffix, and run them in a single invocation.
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///
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/// See:
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/// - https://flutter.dev/docs/cookbook/testing/unit/introduction
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/// - https://flutter.dev/docs/cookbook/testing/widget/introduction
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///
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/// ## Integration Tests
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///
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/// These tests run in a connected Flutter Device, similar to `flutter run`. As
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/// a result, iteration is slower because device-based artifacts have to be
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/// built.
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///
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/// Integration tests should be placed in the `integration_test/` directory of
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/// your package. To run these tests, use `flutter test integration_test`.
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///
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/// See:
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/// - https://flutter.dev/docs/testing/integration-tests
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class TestCommand extends FlutterCommand with DeviceBasedDevelopmentArtifacts {
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TestCommand({
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bool verboseHelp = false,
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this.testWrapper = const TestWrapper(),
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this.testRunner = const FlutterTestRunner(),
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}) : assert(testWrapper != null) {
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requiresPubspecYaml();
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usesPubOption();
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addNullSafetyModeOptions(hide: !verboseHelp);
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usesTrackWidgetCreation(verboseHelp: verboseHelp);
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addEnableExperimentation(hide: !verboseHelp);
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usesDartDefineOption();
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usesWebRendererOption();
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usesDeviceUserOption();
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argParser
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..addMultiOption('name',
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help: 'A regular expression matching substrings of the names of tests to run.',
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valueHelp: 'regexp',
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splitCommas: false,
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)
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..addMultiOption('plain-name',
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help: 'A plain-text substring of the names of tests to run.',
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valueHelp: 'substring',
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splitCommas: false,
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)
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..addOption('tags',
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abbr: 't',
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help: 'Run only tests associated with the specified tags. See: https://pub.dev/packages/test#tagging-tests',
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)
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..addOption('exclude-tags',
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abbr: 'x',
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help: 'Run only tests that do not have the specified tags. See: https://pub.dev/packages/test#tagging-tests',
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)
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..addFlag('start-paused',
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defaultsTo: false,
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negatable: false,
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help: 'Start in a paused mode and wait for a debugger to connect.\n'
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'You must specify a single test file to run, explicitly.\n'
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'Instructions for connecting with a debugger are printed to the '
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'console once the test has started.',
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)
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..addFlag('run-skipped',
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defaultsTo: false,
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help: 'Run skipped tests instead of skipping them.',
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)
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..addFlag('disable-service-auth-codes',
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defaultsTo: false,
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negatable: false,
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hide: !verboseHelp,
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help: '(deprecated) Allow connections to the VM service without using authentication codes. '
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'(Not recommended! This can open your device to remote code execution attacks!)'
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)
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..addFlag('coverage',
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defaultsTo: false,
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negatable: false,
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help: 'Whether to collect coverage information.',
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)
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..addFlag('merge-coverage',
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defaultsTo: false,
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negatable: false,
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help: 'Whether to merge coverage data with "coverage/lcov.base.info".\n'
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'Implies collecting coverage data. (Requires lcov.)',
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)
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..addFlag('ipv6',
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negatable: false,
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hide: !verboseHelp,
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help: 'Whether to use IPv6 for the test harness server socket.',
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)
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..addOption('coverage-path',
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defaultsTo: 'coverage/lcov.info',
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help: 'Where to store coverage information (if coverage is enabled).',
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)
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..addFlag('machine',
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hide: !verboseHelp,
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negatable: false,
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help: 'Handle machine structured JSON command input '
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'and provide output and progress in machine friendly format.',
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)
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..addFlag('update-goldens',
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negatable: false,
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help: 'Whether "matchesGoldenFile()" calls within your test methods should ' // flutter_ignore: golden_tag (see analyze.dart)
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'update the golden files rather than test for an existing match.',
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)
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..addOption('concurrency',
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abbr: 'j',
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defaultsTo: math.max<int>(1, globals.platform.numberOfProcessors - 2).toString(),
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help: 'The number of concurrent test processes to run. This will be ignored '
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'when running integration tests.',
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valueHelp: 'jobs',
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)
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..addFlag('test-assets',
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defaultsTo: true,
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negatable: true,
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help: 'Whether to build the assets bundle for testing. '
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'This takes additional time before running the tests. '
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'Consider using "--no-test-assets" if assets are not required.',
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)
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// --platform is not supported to be used by Flutter developers. It only
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// exists to test the Flutter framework itself and may be removed entirely
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// in the future. Developers should either use plain `flutter test`, or
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// `package:integration_test` instead.
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..addOption('platform',
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allowed: const <String>['tester', 'chrome'],
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hide: !verboseHelp,
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defaultsTo: 'tester',
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help: 'Selects the test backend.',
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allowedHelp: <String, String>{
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'tester': 'Run tests using the VM-based test environment.',
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'chrome': '(deprecated) Run tests using the Google Chrome web browser. '
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'This value is intended for testing the Flutter framework '
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'itself and may be removed at any time.',
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},
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)
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..addOption('test-randomize-ordering-seed',
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help: 'The seed to randomize the execution order of test cases within test files. '
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'Must be a 32bit unsigned integer or the string "random", '
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'which indicates that a seed should be selected randomly. '
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'By default, tests run in the order they are declared.',
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)
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..addOption('total-shards',
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help: 'Tests can be sharded with the "--total-shards" and "--shard-index" '
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'arguments, allowing you to split up your test suites and run '
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'them separately.'
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)
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..addOption('shard-index',
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help: 'Tests can be sharded with the "--total-shards" and "--shard-index" '
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'arguments, allowing you to split up your test suites and run '
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'them separately.'
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)
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..addFlag('enable-vmservice',
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defaultsTo: false,
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hide: !verboseHelp,
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help: 'Enables the VM service without "--start-paused". This flag is '
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'intended for use with tests that will use "dart:developer" to '
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'interact with the VM service at runtime.\n'
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'This flag is ignored if "--start-paused" or coverage are requested, as '
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'the VM service will be enabled in those cases regardless.'
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)
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..addOption('reporter',
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abbr: 'r',
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defaultsTo: 'compact',
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help: 'Set how to print test results.',
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allowed: <String>['compact', 'expanded', 'json'],
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allowedHelp: <String, String>{
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'compact': 'A single line that updates dynamically.',
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'expanded': 'A separate line for each update. May be preferred when logging to a file or in continuous integration.',
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'json': 'A machine-readable format. See: https://dart.dev/go/test-docs/json_reporter.md',
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},
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)
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..addOption('timeout',
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help: 'The default test timeout, specified either '
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'in seconds (e.g. "60s"), '
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'as a multiplier of the default timeout (e.g. "2x"), '
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'or as the string "none" to disable the timeout entirely.',
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defaultsTo: '30s',
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);
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addDdsOptions(verboseHelp: verboseHelp);
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}
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/// The interface for starting and configuring the tester.
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final TestWrapper testWrapper;
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/// Interface for running the tester process.
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final FlutterTestRunner testRunner;
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@visibleForTesting
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bool get isIntegrationTest => _isIntegrationTest;
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bool _isIntegrationTest = false;
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List<String> _testFiles = <String>[];
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@override
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Future<Set<DevelopmentArtifact>> get requiredArtifacts async {
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final Set<DevelopmentArtifact> results = _isIntegrationTest
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// Use [DeviceBasedDevelopmentArtifacts].
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? await super.requiredArtifacts
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: <DevelopmentArtifact>{};
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if (stringArg('platform') == 'chrome') {
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results.add(DevelopmentArtifact.web);
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}
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return results;
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}
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@override
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String get name => 'test';
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@override
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String get description => 'Run Flutter unit tests for the current project.';
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@override
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Future<FlutterCommandResult> verifyThenRunCommand(String commandPath) {
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_testFiles = argResults.rest.map<String>(globals.fs.path.absolute).toList();
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if (_testFiles.isEmpty) {
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// We don't scan the entire package, only the test/ subdirectory, so that
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// files with names like "hit_test.dart" don't get run.
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final Directory testDir = globals.fs.directory('test');
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if (!testDir.existsSync()) {
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throwToolExit('Test directory "${testDir.path}" not found.');
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}
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_testFiles = _findTests(testDir).toList();
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if (_testFiles.isEmpty) {
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throwToolExit(
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'Test directory "${testDir.path}" does not appear to contain any test files.\n'
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'Test files must be in that directory and end with the pattern "_test.dart".'
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);
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}
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} else {
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_testFiles = <String>[
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for (String path in _testFiles)
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if (globals.fs.isDirectorySync(path))
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..._findTests(globals.fs.directory(path))
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else
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globals.fs.path.normalize(globals.fs.path.absolute(path))
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];
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}
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// This needs to be set before [super.verifyThenRunCommand] so that the
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// correct [requiredArtifacts] can be identified before [run] takes place.
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_isIntegrationTest = _shouldRunAsIntegrationTests(globals.fs.currentDirectory.absolute.path, _testFiles);
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globals.logger.printTrace(
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'Found ${_testFiles.length} files which will be executed as '
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'${_isIntegrationTest ? 'Integration' : 'Widget'} Tests.',
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);
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return super.verifyThenRunCommand(commandPath);
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}
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@override
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Future<FlutterCommandResult> runCommand() async {
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if (!globals.fs.isFileSync('pubspec.yaml')) {
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throwToolExit(
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'Error: No pubspec.yaml file found in the current working directory.\n'
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'Run this command from the root of your project. Test files must be '
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"called *_test.dart and must reside in the package's 'test' "
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'directory (or one of its subdirectories).');
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}
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final FlutterProject flutterProject = FlutterProject.current();
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final bool buildTestAssets = boolArg('test-assets');
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final List<String> names = stringsArg('name');
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final List<String> plainNames = stringsArg('plain-name');
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final String tags = stringArg('tags');
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final String excludeTags = stringArg('exclude-tags');
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final BuildInfo buildInfo = await getBuildInfo(forcedBuildMode: BuildMode.debug);
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if (buildInfo.packageConfig['test_api'] == null) {
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throwToolExit(
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'Error: cannot run without a dependency on either "package:flutter_test" or "package:test". '
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'Ensure the following lines are present in your pubspec.yaml:'
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'\n\n'
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'dev_dependencies:\n'
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' flutter_test:\n'
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' sdk: flutter\n',
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);
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}
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if (buildTestAssets) {
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await _buildTestAsset();
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}
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final bool startPaused = boolArg('start-paused');
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if (startPaused && _testFiles.length != 1) {
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throwToolExit(
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'When using --start-paused, you must specify a single test file to run.',
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exitCode: 1,
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);
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}
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int jobs = int.tryParse(stringArg('concurrency'));
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if (jobs == null || jobs <= 0 || !jobs.isFinite) {
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throwToolExit(
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'Could not parse -j/--concurrency argument. It must be an integer greater than zero.'
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);
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}
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if (_isIntegrationTest) {
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if (argResults.wasParsed('concurrency')) {
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globals.logger.printStatus(
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'-j/--concurrency was parsed but will be ignored, this option is not '
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'supported when running Integration Tests.',
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);
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}
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// Running with concurrency will result in deploying multiple test apps
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// on the connected device concurrently, which is not supported.
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jobs = 1;
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}
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final int shardIndex = int.tryParse(stringArg('shard-index') ?? '');
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if (shardIndex != null && (shardIndex < 0 || !shardIndex.isFinite)) {
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throwToolExit(
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'Could not parse --shard-index=$shardIndex argument. It must be an integer greater than -1.');
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}
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final int totalShards = int.tryParse(stringArg('total-shards') ?? '');
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if (totalShards != null && (totalShards <= 0 || !totalShards.isFinite)) {
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throwToolExit(
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'Could not parse --total-shards=$totalShards argument. It must be an integer greater than zero.');
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}
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if (totalShards != null && shardIndex == null) {
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throwToolExit(
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'If you set --total-shards you need to also set --shard-index.');
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}
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if (shardIndex != null && totalShards == null) {
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throwToolExit(
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'If you set --shard-index you need to also set --total-shards.');
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}
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final bool machine = boolArg('machine');
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CoverageCollector collector;
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if (boolArg('coverage') || boolArg('merge-coverage')) {
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final String projectName = flutterProject.manifest.appName;
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collector = CoverageCollector(
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verbose: !machine,
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libraryPredicate: (String libraryName) => libraryName.contains(projectName),
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packagesPath: globals.fs.file(buildInfo.packagesPath)
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.parent.parent.childFile('.packages').path
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);
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}
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TestWatcher watcher;
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if (machine) {
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watcher = EventPrinter(parent: collector, out: globals.stdio.stdout);
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} else if (collector != null) {
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watcher = collector;
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}
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final DebuggingOptions debuggingOptions = DebuggingOptions.enabled(
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buildInfo,
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startPaused: startPaused,
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disableServiceAuthCodes: boolArg('disable-service-auth-codes'),
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// On iOS >=14, keeping this enabled will leave a prompt on the screen.
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disablePortPublication: true,
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enableDds: enableDds,
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nullAssertions: boolArg(FlutterOptions.kNullAssertions),
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);
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Device integrationTestDevice;
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if (_isIntegrationTest) {
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integrationTestDevice = await findTargetDevice();
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// Disable reporting of test results to native test frameworks. This isn't
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// needed as the Flutter Tool will be responsible for reporting results.
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buildInfo.dartDefines.add('INTEGRATION_TEST_SHOULD_REPORT_RESULTS_TO_NATIVE=false');
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if (integrationTestDevice == null) {
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throwToolExit(
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'No devices are connected. '
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'Ensure that `flutter doctor` shows at least one connected device',
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);
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}
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if (integrationTestDevice.platformType == PlatformType.web) {
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// TODO(jiahaog): Support web. https://github.com/flutter/flutter/pull/74236
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throwToolExit('Web devices are not supported for integration tests yet.');
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}
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if (buildInfo.packageConfig['integration_test'] == null) {
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throwToolExit(
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'Error: cannot run without a dependency on "package:integration_test". '
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'Ensure the following lines are present in your pubspec.yaml:'
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'\n\n'
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'dev_dependencies:\n'
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' integration_test:\n'
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' sdk: flutter\n',
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);
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}
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}
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final int result = await testRunner.runTests(
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testWrapper,
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_testFiles,
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debuggingOptions: debuggingOptions,
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names: names,
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plainNames: plainNames,
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tags: tags,
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excludeTags: excludeTags,
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watcher: watcher,
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enableObservatory: collector != null || startPaused || boolArg('enable-vmservice'),
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ipv6: boolArg('ipv6'),
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machine: machine,
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updateGoldens: boolArg('update-goldens'),
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concurrency: jobs,
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buildTestAssets: buildTestAssets,
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flutterProject: flutterProject,
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web: stringArg('platform') == 'chrome',
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randomSeed: stringArg('test-randomize-ordering-seed'),
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reporter: stringArg('reporter'),
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timeout: stringArg('timeout'),
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runSkipped: boolArg('run-skipped'),
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shardIndex: shardIndex,
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totalShards: totalShards,
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integrationTestDevice: integrationTestDevice,
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integrationTestUserIdentifier: stringArg(FlutterOptions.kDeviceUser),
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);
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if (collector != null) {
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final bool collectionResult = await collector.collectCoverageData(
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stringArg('coverage-path'),
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mergeCoverageData: boolArg('merge-coverage'),
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);
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if (!collectionResult) {
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throwToolExit(null);
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}
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}
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if (result != 0) {
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throwToolExit(null);
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}
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return FlutterCommandResult.success();
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}
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Future<void> _buildTestAsset() async {
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final AssetBundle assetBundle = AssetBundleFactory.instance.createBundle();
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final int build = await assetBundle.build(packagesPath: '.packages');
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if (build != 0) {
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throwToolExit('Error: Failed to build asset bundle');
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}
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if (_needRebuild(assetBundle.entries)) {
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await writeBundle(globals.fs.directory(globals.fs.path.join('build', 'unit_test_assets')),
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assetBundle.entries);
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}
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}
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bool _needRebuild(Map<String, DevFSContent> entries) {
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final File manifest = globals.fs.file(globals.fs.path.join('build', 'unit_test_assets', 'AssetManifest.json'));
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if (!manifest.existsSync()) {
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return true;
|
|
}
|
|
final DateTime lastModified = manifest.lastModifiedSync();
|
|
final File pub = globals.fs.file('pubspec.yaml');
|
|
if (pub.lastModifiedSync().isAfter(lastModified)) {
|
|
return true;
|
|
}
|
|
|
|
for (final DevFSFileContent entry in entries.values.whereType<DevFSFileContent>()) {
|
|
// Calling isModified to access file stats first in order for isModifiedAfter
|
|
// to work.
|
|
if (entry.isModified && entry.isModifiedAfter(lastModified)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/// Searches [directory] and returns files that end with `_test.dart` as
|
|
/// absolute paths.
|
|
Iterable<String> _findTests(Directory directory) {
|
|
return directory.listSync(recursive: true, followLinks: false)
|
|
.where((FileSystemEntity entity) => entity.path.endsWith('_test.dart') &&
|
|
globals.fs.isFileSync(entity.path))
|
|
.map((FileSystemEntity entity) => globals.fs.path.absolute(entity.path));
|
|
}
|
|
|
|
/// Returns true if there are files that are Integration Tests.
|
|
///
|
|
/// The [currentDirectory] and [testFiles] parameters here must be provided as
|
|
/// absolute paths.
|
|
///
|
|
/// Throws an exception if there are both Integration Tests and Widget Tests
|
|
/// found in [testFiles].
|
|
bool _shouldRunAsIntegrationTests(String currentDirectory, List<String> testFiles) {
|
|
final String integrationTestDirectory = globals.fs.path.join(currentDirectory, _kIntegrationTestDirectory);
|
|
|
|
if (testFiles.every((String absolutePath) => !absolutePath.startsWith(integrationTestDirectory))) {
|
|
return false;
|
|
}
|
|
|
|
if (testFiles.every((String absolutePath) => absolutePath.startsWith(integrationTestDirectory))) {
|
|
return true;
|
|
}
|
|
|
|
throwToolExit(
|
|
'Integration tests and unit tests cannot be run in a single invocation.'
|
|
' Use separate invocations of `flutter test` to run integration tests'
|
|
' and unit tests.'
|
|
);
|
|
}
|