packages/flutter_tools/test/integration.shard/flutter_run_test.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:file/file.dart';
import 'package:flutter_tools/src/base/file_system.dart';
import 'package:flutter_tools/src/base/io.dart';
import 'package:process/process.dart';

import '../src/common.dart';
import 'test_data/basic_project.dart';
import 'test_driver.dart';
import 'test_utils.dart';

void main() {
  Directory tempDir;
  final BasicProject _project = BasicProject();
  FlutterRunTestDriver _flutter;

  setUp(() async {
    tempDir = createResolvedTempDirectorySync('run_test.');
    await _project.setUpIn(tempDir);
    _flutter = FlutterRunTestDriver(tempDir);
  });

  tearDown(() async {
    await _flutter.stop();
    tryToDelete(tempDir);
  });

  test('flutter run reports an error if an invalid device is supplied', () async {
    // This test forces flutter to check for all possible devices to catch issues
    // like https://github.com/flutter/flutter/issues/21418 which were skipped
    // over because other integration tests run using flutter-tester which short-cuts
    // some of the checks for devices.
    final String flutterBin = fs.path.join(getFlutterRoot(), 'bin', 'flutter');

    const ProcessManager _processManager = LocalProcessManager();
    final ProcessResult _proc = await _processManager.run(
      <String>[flutterBin, 'run', '-d', 'invalid-device-id'],
      workingDirectory: tempDir.path,
    );

    expect(_proc.stdout, isNot(contains('flutter has exited unexpectedly')));
    expect(_proc.stderr, isNot(contains('flutter has exited unexpectedly')));
    if (!_proc.stderr.toString().contains('Unable to locate a development')
        && !_proc.stdout.toString().contains('No devices found with name or id matching')) {
      fail("'flutter run -d invalid-device-id' did not produce the expected error");
    }
  });

  test('flutter run writes pid-file', () async {
    final File pidFile = tempDir.childFile('test.pid');
    await _flutter.run(pidFile: pidFile);
    expect(pidFile.existsSync(), isTrue);
  });
}