packages/flutter_tools/test/integration.shard/tool_backend_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:flutter_tools/src/base/io.dart';

import '../src/common.dart';
import 'test_utils.dart';

final String toolBackend = fileSystem.path.join(
  getFlutterRoot(),
  'packages',
  'flutter_tools',
  'bin',
  'tool_backend.dart',
);
final String examplePath = fileSystem.path.join(getFlutterRoot(), 'examples', 'hello_world');
final String dart = fileSystem.path.join(
  getFlutterRoot(),
  'bin',
  platform.isWindows ? 'dart.bat' : 'dart',
);

void main() {
  testWithoutContext('tool_backend.dart exits if PROJECT_DIR is not set', () async {
    final ProcessResult result = await processManager.run(<String>[
      dart,
      toolBackend,
      'linux-x64',
      'debug',
    ]);

    expect(
      result,
      const ProcessResultMatcher(
        exitCode: 1,
        stderrPattern:
            'PROJECT_DIR environment variable must be set to the location of Flutter project to be built.',
      ),
    );
  });

  testWithoutContext('tool_backend.dart exits if FLUTTER_ROOT is not set', () async {
    // Removing parent environment means that batch script cannot be run.
    final String dart = fileSystem.path.join(
      getFlutterRoot(),
      'bin',
      'cache',
      'dart-sdk',
      'bin',
      platform.isWindows ? 'dart.exe' : 'dart',
    );

    final ProcessResult result = await processManager.run(
      <String>[dart, toolBackend, 'linux-x64', 'debug'],
      environment: <String, String>{'PROJECT_DIR': examplePath},
      includeParentEnvironment: false,
    ); // Prevent FLUTTER_ROOT set by test environment from leaking

    expect(
      result,
      const ProcessResultMatcher(
        exitCode: 1,
        stderrPattern:
            'FLUTTER_ROOT environment variable must be set to the location of the Flutter SDK.',
      ),
    );
  });

  testWithoutContext('tool_backend.dart exits if local engine does not match build mode', () async {
    final ProcessResult result = await processManager.run(
      <String>[dart, toolBackend, 'linux-x64', 'debug'],
      environment: <String, String>{
        'PROJECT_DIR': examplePath,
        'LOCAL_ENGINE': 'release_foo_bar', // Does not contain "debug",
      },
    );

    expect(
      result,
      const ProcessResultMatcher(
        exitCode: 1,
        stderrPattern: "ERROR: Requested build with Flutter local engine at 'release_foo_bar'",
      ),
    );
  });

  testWithoutContext(
    'tool_backend.dart exits if local engine host does not match build mode',
    () async {
      final ProcessResult result = await processManager.run(
        <String>[dart, toolBackend, 'linux-x64', 'debug'],
        environment: <String, String>{
          'PROJECT_DIR': examplePath,
          'LOCAL_ENGINE': 'debug_foo_bar', // OK
          'LOCAL_ENGINE_HOST': 'release_foo_bar', // Does not contain "debug",
        },
      );

      expect(
        result,
        const ProcessResultMatcher(
          exitCode: 1,
          stderrPattern:
              "ERROR: Requested build with Flutter local engine host at 'release_foo_bar'",
        ),
      );
    },
  );
}