// 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.

// @dart = 2.8

import 'package:file/memory.dart';
import 'package:file_testing/file_testing.dart';
import 'package:flutter_tools/src/base/file_system.dart';
import 'package:flutter_tools/src/base/platform.dart';
import 'package:flutter_tools/src/cache.dart';
import 'package:flutter_tools/src/commands/build_windows.dart';
import 'package:flutter_tools/src/commands/build_winuwp.dart';
import 'package:flutter_tools/src/features.dart';
import 'package:flutter_tools/src/reporting/reporting.dart';
import 'package:flutter_tools/src/windows/visual_studio.dart';
import 'package:test/fake.dart';

import '../../src/common.dart';
import '../../src/context.dart';
import '../../src/fakes.dart';
import '../../src/test_flutter_command_runner.dart';

const String flutterRoot = r'C:\flutter';
const String buildFilePath = r'C:\windows\CMakeLists.txt';
const String buildUwpFilePath = r'C:\winuwp\CMakeLists.txt';
const String visualStudioPath = r'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community';
const String _cmakePath = visualStudioPath + r'\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe';
const String _defaultGenerator = 'Visual Studio 16 2019';

final Platform windowsPlatform = FakePlatform(
  operatingSystem: 'windows',
  environment: <String, String>{
    'PROGRAMFILES(X86)':  r'C:\Program Files (x86)\',
    'FLUTTER_ROOT': flutterRoot,
    'USERPROFILE': '/',
  }
);
final Platform notWindowsPlatform = FakePlatform(
  environment: <String, String>{
    'FLUTTER_ROOT': flutterRoot,
  }
);

void main() {
  FileSystem fileSystem;

  ProcessManager processManager;
  TestUsage usage;

  setUpAll(() {
    Cache.disableLocking();
    Cache.flutterRoot = '';
  });

  setUp(() {
    fileSystem = MemoryFileSystem.test(style: FileSystemStyle.windows);
    Cache.flutterRoot = flutterRoot;
    usage = TestUsage();
  });

  // Creates the mock files necessary to look like a Flutter project.
  void setUpMockCoreProjectFiles() {
    fileSystem.file('pubspec.yaml').createSync();
    fileSystem.file('.packages').createSync();
    fileSystem.file(fileSystem.path.join('lib', 'main.dart')).createSync(recursive: true);
  }

  // Creates the mock files necessary to run a build.
  void setUpMockProjectFilesForBuild() {
    fileSystem.file(buildFilePath).createSync(recursive: true);
    setUpMockCoreProjectFiles();
  }

  void setUpMockUwpFilesForBuild(int version) {
    final Directory projectDirectory = (fileSystem.file(buildUwpFilePath)
      ..createSync(recursive: true))
      .parent;
    projectDirectory.childFile('project_version').writeAsString(version.toString());
    setUpMockCoreProjectFiles();
  }

  // Returns the command matching the build_windows call to generate CMake
  // files.
  FakeCommand cmakeGenerationCommand({
    void Function() onRun,
    bool winuwp = false,
    String generator = _defaultGenerator,
  }) {
    return FakeCommand(
      command: <String>[
        _cmakePath,
        '-S',
        fileSystem.path.dirname(winuwp ? buildUwpFilePath : buildFilePath),
        '-B',
        if (winuwp)
          r'build\winuwp'
        else
          r'build\windows',
        '-G',
        generator,
      ],
      onRun: onRun,
    );
  }

  // Returns the command matching the build_windows call to build.
  FakeCommand buildCommand(String buildMode, {
    bool verbose = false,
    void Function() onRun,
    String stdout = '',
    bool winuwp = false,
  }) {
    return FakeCommand(
      command: <String>[
        _cmakePath,
        '--build',
        if (winuwp)
          r'build\winuwp'
        else
          r'build\windows',
        '--config',
        buildMode,
        if (!winuwp)
          ...<String>['--target', 'INSTALL'],
        if (verbose)
          '--verbose'
      ],
      environment: <String, String>{
        if (verbose)
          'VERBOSE_SCRIPT_LOGGING': 'true'
      },
      onRun: onRun,
      stdout: stdout,
    );
  }

  testUsingContext('Windows build fails when there is no cmake path', () async {
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = FakeVisualStudio(cmakePath: null);
    setUpMockProjectFilesForBuild();

    expect(createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub']
    ), throwsToolExit());
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build fails when there is no windows project', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockCoreProjectFiles();

    expect(createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub']
    ), throwsToolExit(message: 'No Windows desktop project configured. See '
      'https://docs.flutter.dev/desktop#add-desktop-support-to-an-existing-flutter-app '
      'to learn about adding Windows support to a project.'));
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build fails on non windows platform', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    expect(createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub']
    ), throwsToolExit(message: '"build windows" only supported on Windows hosts.'));
  }, overrides: <Type, Generator>{
    Platform: () => notWindowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build fails when feature is disabled', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    expect(createTestCommandRunner(command).run(
        const <String>['windows', '--no-pub']
    ), throwsToolExit(message: '"build windows" is not currently supported. To enable, run "flutter config --enable-windows-desktop".'));
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(),
  });

  testUsingContext('Windows build does not spew stdout to status logger', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Release',
        stdout: 'STDOUT STUFF',
      ),
    ]);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub']
    );
    expect(testLogger.statusText, isNot(contains('STDOUT STUFF')));
    expect(testLogger.traceText, contains('STDOUT STUFF'));
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build extracts errors from stdout', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    // This contains a mix of routine build output and various types of errors
    // (compile error, link error, warning treated as an error) from MSBuild,
    // edited down for compactness. For instance, where similar lines are
    // repeated in actual output, one or two representative lines are chosen
    // to be included here.
    const String stdout = r'''
Microsoft (R) Build Engine version 16.6.0+5ff7b0c9e for .NET Framework
Copyright (C) Microsoft Corporation. All rights reserved.

  Checking Build System
  Generating C:/foo/windows/flutter/ephemeral/flutter_windows.dll, [etc], _phony_
  Building Custom Rule C:/foo/windows/flutter/CMakeLists.txt
  standard_codec.cc
  Generating Code...
  flutter_wrapper_plugin.vcxproj -> C:\foo\build\windows\flutter\Debug\flutter_wrapper_plugin.lib
C:\foo\windows\runner\main.cpp(18): error C2220: the following warning is treated as an error [C:\foo\build\windows\runner\test.vcxproj]
C:\foo\windows\runner\main.cpp(18): warning C4706: assignment within conditional expression [C:\foo\build\windows\runner\test.vcxproj]
main.obj : error LNK2019: unresolved external symbol "void __cdecl Bar(void)" (?Bar@@YAXXZ) referenced in function wWinMain [C:\foo\build\windows\runner\test.vcxproj]
C:\foo\build\windows\runner\Debug\test.exe : fatal error LNK1120: 1 unresolved externals [C:\foo\build\windows\runner\test.vcxproj]
  Building Custom Rule C:/foo/windows/runner/CMakeLists.txt
  flutter_window.cpp
  main.cpp
C:\foo\windows\runner\main.cpp(17,1): error C2065: 'Baz': undeclared identifier [C:\foo\build\windows\runner\test.vcxproj]
  -- Install configuration: "Debug"
  -- Installing: C:/foo/build/windows/runner/Debug/data/icudtl.dat
''';

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Release',
        stdout: stdout,
      ),
    ]);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub']
    );
    // Just the warnings and errors should be surfaced.
    expect(testLogger.errorText, r'''
C:\foo\windows\runner\main.cpp(18): error C2220: the following warning is treated as an error [C:\foo\build\windows\runner\test.vcxproj]
C:\foo\windows\runner\main.cpp(18): warning C4706: assignment within conditional expression [C:\foo\build\windows\runner\test.vcxproj]
main.obj : error LNK2019: unresolved external symbol "void __cdecl Bar(void)" (?Bar@@YAXXZ) referenced in function wWinMain [C:\foo\build\windows\runner\test.vcxproj]
C:\foo\build\windows\runner\Debug\test.exe : fatal error LNK1120: 1 unresolved externals [C:\foo\build\windows\runner\test.vcxproj]
C:\foo\windows\runner\main.cpp(17,1): error C2065: 'Baz': undeclared identifier [C:\foo\build\windows\runner\test.vcxproj]
''');
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows verbose build sets VERBOSE_SCRIPT_LOGGING', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Release',
        verbose: true,
        stdout: 'STDOUT STUFF',
      ),
    ]);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub', '-v']
    );
    expect(testLogger.statusText, contains('STDOUT STUFF'));
    expect(testLogger.traceText, isNot(contains('STDOUT STUFF')));
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build works around CMake generation bug', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio(displayVersion: '17.1.0');
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Release'),
    ]);
    fileSystem.file(fileSystem.path.join('lib', 'other.dart'))
      .createSync(recursive: true);
    fileSystem.file(fileSystem.path.join('foo', 'bar.sksl.json'))
      .createSync(recursive: true);

    // Relevant portions of an incorrectly generated project, with some
    // irrelevant details removed for length.
    const String fakeBadProjectContent = r'''
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="17.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ItemGroup>
    <CustomBuild Include="somepath\build\windows\CMakeFiles\8b570225f626c250e12bc1ede88babae\flutter_windows.dll.rule">
      <Message Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Debug
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Profile|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Profile|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Debug
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Release|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Debug
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Profile
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Profile|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Profile|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Profile
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Release|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Profile
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Release
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Profile|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Profile|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Release
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
      <Message Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Generating some files</Message>
      <Command Condition="'$(Configuration)|$(Platform)'=='Release|x64'">setlocal
"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64 Release
endlocal &amp; call :cmErrorLevel %errorlevel% &amp; goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd</Command>
    </CustomBuild>
  </ItemGroup>
</Project>
''';
    final File assembleProject = fileSystem.currentDirectory
      .childDirectory('build')
      .childDirectory('windows')
      .childDirectory('flutter')
      .childFile('flutter_assemble.vcxproj');
    assembleProject.createSync(recursive: true);
    assembleProject.writeAsStringSync(fakeBadProjectContent);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub']
    );

    final List<String> projectLines = assembleProject.readAsLinesSync();

    const String commandBase = r'"C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" '
      r'-E env FOO=bar C:/src/flutter/packages/flutter_tools/bin/tool_backend.bat windows-x64';
    // The duplicate commands will still be present, but with the order matching
    // the condition order (cycling through the configurations), rather than
    // three copies of Debug, then three copies of Profile, then three copies
    // of Release.
    expect(projectLines, containsAllInOrder(<String>[
      '$commandBase Debug\r',
      '$commandBase Profile\r',
      '$commandBase Release\r',
      '$commandBase Debug\r',
      '$commandBase Profile\r',
      '$commandBase Release\r',
      '$commandBase Debug\r',
      '$commandBase Profile\r',
      '$commandBase Release\r',
    ]));
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build invokes build and writes generated files', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Release'),
    ]);
    fileSystem.file(fileSystem.path.join('lib', 'other.dart'))
      .createSync(recursive: true);
    fileSystem.file(fileSystem.path.join('foo', 'bar.sksl.json'))
      .createSync(recursive: true);

    await createTestCommandRunner(command).run(
      const <String>[
        'windows',
        '--no-pub',
        '--track-widget-creation',
        '--obfuscate',
        '--tree-shake-icons',
        '--enable-experiment=non-nullable',
        r'--split-debug-info=C:\foo\',
        '--dart-define=foo=a',
        '--dart-define=bar=b',
        r'--bundle-sksl-path=foo\bar.sksl.json',
        r'--target=lib\other.dart',
      ]
    );

    final File cmakeConfig = fileSystem.currentDirectory
      .childDirectory('windows')
      .childDirectory('flutter')
      .childDirectory('ephemeral')
      .childFile('generated_config.cmake');

    expect(cmakeConfig, exists);

    final List<String> configLines = cmakeConfig.readAsLinesSync();

    // Backslashes are escaped in the file, which is why this uses both raw
    // strings and double backslashes.
    expect(configLines, containsAll(<String>[
      r'file(TO_CMAKE_PATH "C:\\flutter" FLUTTER_ROOT)',
      r'file(TO_CMAKE_PATH "C:\\" PROJECT_DIR)',
      r'  "DART_DEFINES=Zm9vPWE=,YmFyPWI="',
      r'  "DART_OBFUSCATION=true"',
      r'  "EXTRA_FRONT_END_OPTIONS=--enable-experiment=non-nullable"',
      r'  "EXTRA_GEN_SNAPSHOT_OPTIONS=--enable-experiment=non-nullable"',
      r'  "SPLIT_DEBUG_INFO=C:\\foo\\"',
      r'  "TRACK_WIDGET_CREATION=true"',
      r'  "TREE_SHAKE_ICONS=true"',
      r'  "FLUTTER_ROOT=C:\\flutter"',
      r'  "PROJECT_DIR=C:\\"',
      r'  "FLUTTER_TARGET=lib\\other.dart"',
      r'  "BUNDLE_SKSL_PATH=foo\\bar.sksl.json"',
    ]));
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows profile build passes Profile configuration', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Profile'),
    ]);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--profile', '--no-pub']
    );
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('Windows build passes correct generator', () async {
    const String generator = 'A different generator';
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio(
      cmakeGenerator: generator);
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(generator: generator),
      buildCommand('Release'),
    ]);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--release', '--no-pub']
    );
  }, overrides: <Type, Generator>{
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
  });

  testUsingContext('hidden when not enabled on Windows host', () {
    expect(BuildWindowsCommand().hidden, true);
  }, overrides: <Type, Generator>{
    FeatureFlags: () => TestFeatureFlags(),
    Platform: () => windowsPlatform,
  });

  testUsingContext('Not hidden when enabled and on Windows host', () {
    expect(BuildWindowsCommand().hidden, false);
  }, overrides: <Type, Generator>{
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
    Platform: () => windowsPlatform,
  });

  testUsingContext('Performs code size analysis and sends analytics', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsCommand command = BuildWindowsCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    fileSystem.file(r'build\windows\runner\Release\app.so')
      ..createSync(recursive: true)
      ..writeAsBytesSync(List<int>.generate(10000, (int index) => 0));

    processManager = FakeProcessManager.list(<FakeCommand>[
      cmakeGenerationCommand(),
      buildCommand('Release', onRun: () {
        fileSystem.file(r'build\flutter_size_01\snapshot.windows-x64.json')
          ..createSync(recursive: true)
          ..writeAsStringSync('''
[
  {
    "l": "dart:_internal",
    "c": "SubListIterable",
    "n": "[Optimized] skip",
    "s": 2400
  }
]''');
        fileSystem.file(r'build\flutter_size_01\trace.windows-x64.json')
          ..createSync(recursive: true)
          ..writeAsStringSync('{}');
      }),
    ]);

    await createTestCommandRunner(command).run(
      const <String>['windows', '--no-pub', '--analyze-size']
    );

    expect(testLogger.statusText, contains('A summary of your Windows bundle analysis can be found at'));
    expect(testLogger.statusText, contains('flutter pub global activate devtools; flutter pub global run devtools --appSizeBase='));
    expect(usage.events, contains(
       const TestUsageEvent('code-size-analysis', 'windows'),
    ));
  }, overrides: <Type, Generator>{
    FeatureFlags: () => TestFeatureFlags(isWindowsEnabled: true),
    FileSystem: () => fileSystem,
    ProcessManager: () => processManager,
    Platform: () => windowsPlatform,
    FileSystemUtils: () => FileSystemUtils(fileSystem: fileSystem, platform: windowsPlatform),
    Usage: () => usage,
  });

  testUsingContext('Windows UWP build fails when there is no windows project', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsUwpCommand command = BuildWindowsUwpCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockCoreProjectFiles();

    expect(createTestCommandRunner(command).run(
      const <String>['winuwp', '--no-pub']
    ), throwsToolExit(message: 'No Windows UWP desktop project configured. See '
      'https://docs.flutter.dev/desktop#add-desktop-support-to-an-existing-flutter-app '
      'to learn about adding Windows support to a project.'));
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsUwpEnabled: true),
  });

  testUsingContext('Windows build fails on non windows platform', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsUwpCommand command = BuildWindowsUwpCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockUwpFilesForBuild(0);

    expect(createTestCommandRunner(command).run(
      const <String>['winuwp', '--no-pub']
    ), throwsToolExit());
  }, overrides: <Type, Generator>{
    Platform: () => notWindowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsUwpEnabled: true),
  });

  testUsingContext('Windows UWP build fails on non windows platform', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsUwpCommand command = BuildWindowsUwpCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    expect(createTestCommandRunner(command).run(
        const <String>['winuwp', '--no-pub']
    ), throwsToolExit(message: '"build winuwp" only supported on Windows hosts.'));
  }, overrides: <Type, Generator>{
    Platform: () => notWindowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsUwpEnabled: true),
  });

  testUsingContext('Windows UWP build fails when the project version is out of date', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsUwpCommand command = BuildWindowsUwpCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockUwpFilesForBuild(-1);

    expect(createTestCommandRunner(command).run(
      const <String>['winuwp', '--no-pub']
    ), throwsToolExit(message: 'The Windows UWP project template and build process has changed. '
        'In order to build you must delete the winuwp directory and re-create the project'));
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(isWindowsUwpEnabled: true),
  });

  testUsingContext('Windows UWP build fails when feature is disabled', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsUwpCommand command = BuildWindowsUwpCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockProjectFilesForBuild();

    // This message should include 'To enable, run "flutter config --enable-windows-uwp-desktop"."
    // once the `windowsUwpEmbedding` feature is available on all channels.
    expect(createTestCommandRunner(command).run(
        const <String>['winuwp', '--no-pub']
    ), throwsToolExit(message: RegExp(r'"build winuwp" is not currently supported\.$')));
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.any(),
    FeatureFlags: () => TestFeatureFlags(),
  });

  testUsingContext('Windows UWP build completes successfully', () async {
    final FakeVisualStudio fakeVisualStudio = FakeVisualStudio();
    final BuildWindowsUwpCommand command = BuildWindowsUwpCommand()
      ..visualStudioOverride = fakeVisualStudio;
    setUpMockUwpFilesForBuild(0);

    await createTestCommandRunner(command).run(
      const <String>['winuwp', '--no-pub']
    );
  }, overrides: <Type, Generator>{
    Platform: () => windowsPlatform,
    FileSystem: () => fileSystem,
    ProcessManager: () => FakeProcessManager.list(<FakeCommand>[
      const FakeCommand(
        command: <String>[
          r'C:\flutter\bin\flutter',
          'assemble',
          '--no-version-check',
          '--output=build',
          '-dTargetPlatform=windows-uwp-x64',
          '-dTrackWidgetCreation=true',
          '-dBuildMode=release',
          r'-dTargetFile=lib\main.dart',
          '-dTreeShakeIcons="true"',
          '-dDartObfuscation=false',
          'release_bundle_windows_assets_uwp'
        ],
      ),
      cmakeGenerationCommand(winuwp: true),
      buildCommand('Release',  stdout: 'STDOUT STUFF', winuwp: true),
    ]),
    FeatureFlags: () => TestFeatureFlags(isWindowsUwpEnabled: true),
  });
}

class FakeVisualStudio extends Fake implements VisualStudio {
  FakeVisualStudio({
    this.cmakePath = _cmakePath,
    this.cmakeGenerator = 'Visual Studio 16 2019',
    this.displayVersion = '17.0.0'
  });

  @override
  final String cmakePath;

  @override
  final String cmakeGenerator;

  @override
  final String displayVersion;
}