dev/devicelab/bin/tasks/module_test_ios.dart - mirrors/flutter - Git at Google

 // 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 'dart:io';

 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/host_agent.dart';
 import 'package:flutter_devicelab/framework/ios.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:path/path.dart' as path;

 /// Tests that the Flutter module project template works and supports
 /// adding Flutter to an existing iOS app.
 Future<void> main() async {
   await task(() async {
     String simulatorDeviceId;
     section('Create Flutter module project');

     final Directory tempDir = Directory.systemTemp.createTempSync('flutter_module_test.');
     final Directory projectDir = Directory(path.join(tempDir.path, 'hello'));
     try {
       await inDirectory(tempDir, () async {
         await flutter(
           'create',
           options: <String>[
             '--org',
             'io.flutter.devicelab',
             '--template=module',
             'hello',
           ],
         );
       });

       // Copy test dart files to new module app.
       final Directory flutterModuleLibSource = Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'ios_host_app', 'flutterapp', 'lib'));
       final Directory flutterModuleLibDestination = Directory(path.join(projectDir.path, 'lib'));

       // These test files don't have a .dart prefix so the analyzer will ignore them. They aren't in a
       // package and don't work on their own outside of the test module just created.
       final File main = File(path.join(flutterModuleLibSource.path, 'main'));
       main.copySync(path.join(flutterModuleLibDestination.path, 'main.dart'));

       final File marquee = File(path.join(flutterModuleLibSource.path, 'marquee'));
       marquee.copySync(path.join(flutterModuleLibDestination.path, 'marquee.dart'));

       section('Build ephemeral host app in release mode without CocoaPods');

       await inDirectory(projectDir, () async {
         await flutter(
           'build',
           options: <String>['ios', '--no-codesign'],
         );
       });

       final Directory ephemeralIOSHostApp = Directory(path.join(
         projectDir.path,
         'build',
         'ios',
         'iphoneos',
         'Runner.app',
       ));

       if (!exists(ephemeralIOSHostApp)) {
         return TaskResult.failure('Failed to build ephemeral host .app');
       }

       if (!await _isAppAotBuild(ephemeralIOSHostApp)) {
         return TaskResult.failure(
           'Ephemeral host app ${ephemeralIOSHostApp.path} was not a release build as expected'
         );
       }

       section('Clean build');

       await inDirectory(projectDir, () async {
         await flutter('clean');
       });

       section('Build ephemeral host app in profile mode without CocoaPods');

       await inDirectory(projectDir, () async {
         await flutter(
           'build',
           options: <String>['ios', '--no-codesign', '--profile'],
         );
       });

       if (!exists(ephemeralIOSHostApp)) {
         return TaskResult.failure('Failed to build ephemeral host .app');
       }

       if (!await _isAppAotBuild(ephemeralIOSHostApp)) {
         return TaskResult.failure(
           'Ephemeral host app ${ephemeralIOSHostApp.path} was not a profile build as expected'
         );
       }

       section('Clean build');

       await inDirectory(projectDir, () async {
         await flutter('clean');
       });

       section('Build ephemeral host app in debug mode for simulator without CocoaPods');

       await inDirectory(projectDir, () async {
         await flutter(
           'build',
           options: <String>['ios', '--no-codesign', '--simulator', '--debug'],
         );
       });

       final Directory ephemeralSimulatorHostApp = Directory(path.join(
         projectDir.path,
         'build',
         'ios',
         'iphonesimulator',
         'Runner.app',
       ));

       if (!exists(ephemeralSimulatorHostApp)) {
         return TaskResult.failure('Failed to build ephemeral host .app');
       }

       if (!exists(File(path.join(
         ephemeralSimulatorHostApp.path,
         'Frameworks',
         'App.framework',
         'flutter_assets',
         'isolate_snapshot_data',
       )))) {
         return TaskResult.failure(
           'Ephemeral host app ${ephemeralSimulatorHostApp.path} was not a debug build as expected'
         );
       }

       section('Clean build');

       await inDirectory(projectDir, () async {
         await flutter('clean');
       });

       section('Add plugins');

       final File pubspec = File(path.join(projectDir.path, 'pubspec.yaml'));
       String content = await pubspec.readAsString();
       content = content.replaceFirst(
         '\ndependencies:\n',
         // One dynamic framework, one static framework, and one that does not support iOS.
         '\ndependencies:\n  device_info: 0.4.2+4\n  google_sign_in: 4.5.1\n  android_alarm_manager: 0.4.5+11\n',
       );
       await pubspec.writeAsString(content, flush: true);
       await inDirectory(projectDir, () async {
         await flutter(
           'packages',
           options: <String>['get'],
         );
       });

       section('Build ephemeral host app with CocoaPods');

       await inDirectory(projectDir, () async {
         await flutter(
           'build',
           options: <String>['ios', '--no-codesign', '-v'],
         );
       });

       final bool ephemeralHostAppWithCocoaPodsBuilt = exists(ephemeralIOSHostApp);

       if (!ephemeralHostAppWithCocoaPodsBuilt) {
         return TaskResult.failure('Failed to build ephemeral host .app with CocoaPods');
       }

       final File podfileLockFile = File(path.join(projectDir.path, '.ios', 'Podfile.lock'));
       final String podfileLockOutput = podfileLockFile.readAsStringSync();
       if (!podfileLockOutput.contains(':path: Flutter')
         || !podfileLockOutput.contains(':path: Flutter/FlutterPluginRegistrant')
         || !podfileLockOutput.contains(':path: ".symlinks/plugins/device_info/ios"')
         || !podfileLockOutput.contains(':path: ".symlinks/plugins/google_sign_in/ios"')
         || podfileLockOutput.contains('android_alarm_manager')) {
         print(podfileLockOutput);
         return TaskResult.failure('Building ephemeral host app Podfile.lock does not contain expected pods');
       }

       checkFileExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'device_info.framework', 'device_info'));

       // Static, no embedded framework.
       checkDirectoryNotExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'google_sign_in.framework'));

       // Android-only, no embedded framework.
       checkDirectoryNotExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'android_alarm_manager.framework'));

       section('Clean and pub get module');

       await inDirectory(projectDir, () async {
         await flutter('clean');
       });

       await inDirectory(projectDir, () async {
         await flutter('pub', options: <String>['get']);
       });

       section('Add to existing iOS Objective-C app');

       final Directory objectiveCHostApp = Directory(path.join(tempDir.path, 'hello_host_app'));
       mkdir(objectiveCHostApp);
       recursiveCopy(
         Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'ios_host_app')),
         objectiveCHostApp,
       );

       final File objectiveCAnalyticsOutputFile = File(path.join(tempDir.path, 'analytics-objc.log'));
       final Directory objectiveCBuildDirectory = Directory(path.join(tempDir.path, 'build-objc'));
       await inDirectory(objectiveCHostApp, () async {
         await exec(
           'pod',
           <String>['install'],
           environment: <String, String>{
             'LANG': 'en_US.UTF-8',
           },
         );

         final File hostPodfileLockFile = File(path.join(objectiveCHostApp.path, 'Podfile.lock'));
         final String hostPodfileLockOutput = hostPodfileLockFile.readAsStringSync();
         if (!hostPodfileLockOutput.contains(':path: "../hello/.ios/Flutter/engine"')
             || !hostPodfileLockOutput.contains(':path: "../hello/.ios/Flutter/FlutterPluginRegistrant"')
             || !hostPodfileLockOutput.contains(':path: "../hello/.ios/.symlinks/plugins/device_info/ios"')
             || !hostPodfileLockOutput.contains(':path: "../hello/.ios/.symlinks/plugins/google_sign_in/ios"')
             || hostPodfileLockOutput.contains('android_alarm_manager')) {
           print(hostPodfileLockOutput);
           throw TaskResult.failure('Building host app Podfile.lock does not contain expected pods');
         }

         await exec(
           'xcodebuild',
           <String>[
             '-workspace',
             'Host.xcworkspace',
             '-scheme',
             'Host',
             '-configuration',
             'Debug',
             'CODE_SIGNING_ALLOWED=NO',
             'CODE_SIGNING_REQUIRED=NO',
             'CODE_SIGN_IDENTITY=-',
             'EXPANDED_CODE_SIGN_IDENTITY=-',
             'CONFIGURATION_BUILD_DIR=${objectiveCBuildDirectory.path}',
             'COMPILER_INDEX_STORE_ENABLE=NO',
           ],
           environment: <String, String> {
             'FLUTTER_ANALYTICS_LOG_FILE': objectiveCAnalyticsOutputFile.path,
           },
         );
       });

       final bool existingAppBuilt = exists(File(path.join(
         objectiveCBuildDirectory.path,
         'Host.app',
         'Host',
       )));
       if (!existingAppBuilt) {
         return TaskResult.failure('Failed to build existing Objective-C app .app');
       }

       checkFileExists(path.join(
         objectiveCBuildDirectory.path,
         'Host.app',
         'Frameworks',
         'Flutter.framework',
         'Flutter',
       ));

       checkFileExists(path.join(
         objectiveCBuildDirectory.path,
         'Host.app',
         'Frameworks',
         'App.framework',
         'flutter_assets',
         'isolate_snapshot_data',
       ));

       final String objectiveCAnalyticsOutput = objectiveCAnalyticsOutputFile.readAsStringSync();
       if (!objectiveCAnalyticsOutput.contains('cd24: ios')
           || !objectiveCAnalyticsOutput.contains('cd25: true')
           || !objectiveCAnalyticsOutput.contains('viewName: assemble')) {
         return TaskResult.failure(
           'Building outer Objective-C app produced the following analytics: "$objectiveCAnalyticsOutput" '
           'but not the expected strings: "cd24: ios", "cd25: true", "viewName: assemble"'
         );
       }

       section('Run platform unit tests');

       final String resultBundleTemp = Directory.systemTemp.createTempSync('module_test_ios_xcresult.').path;
       await testWithNewIOSSimulator('TestAdd2AppSim', (String deviceId) async {
         simulatorDeviceId = deviceId;
         final String resultBundlePath = path.join(resultBundleTemp, 'result');

         final int testResultExit = await exec(
           'xcodebuild',
           <String>[
             '-workspace',
             'Host.xcworkspace',
             '-scheme',
             'Host',
             '-configuration',
             'Debug',
             '-destination',
             'id=$deviceId',
             '-resultBundlePath',
             resultBundlePath,
             'test',
             'CODE_SIGNING_ALLOWED=NO',
             'CODE_SIGNING_REQUIRED=NO',
             'CODE_SIGN_IDENTITY=-',
             'EXPANDED_CODE_SIGN_IDENTITY=-',
             'COMPILER_INDEX_STORE_ENABLE=NO',
           ],
           workingDirectory: objectiveCHostApp.path,
           canFail: true,
         );

         if (testResultExit != 0) {
           // Zip the test results to the artifacts directory for upload.
           await inDirectory(resultBundleTemp, () {
             final String zipPath = path.join(hostAgent.dumpDirectory.path,
                 'module_test_ios-objc-${DateTime.now().toLocal().toIso8601String()}.zip');
             return exec(
               'zip',
               <String>[
                 '-r',
                 '-9',
                 zipPath,
                 'result.xcresult',
               ],
               canFail: true, // Best effort to get the logs.
             );
           });

           throw TaskResult.failure('Platform unit tests failed');
         }
       });

       section('Fail building existing Objective-C iOS app if flutter script fails');
       final String xcodebuildOutput = await inDirectory<String>(objectiveCHostApp, () =>
         eval(
           'xcodebuild',
           <String>[
             '-workspace',
             'Host.xcworkspace',
             '-scheme',
             'Host',
             '-configuration',
             'Debug',
             'FLUTTER_ENGINE=bogus', // Force a Flutter error.
             'CODE_SIGNING_ALLOWED=NO',
             'CODE_SIGNING_REQUIRED=NO',
             'CODE_SIGN_IDENTITY=-',
             'EXPANDED_CODE_SIGN_IDENTITY=-',
             'CONFIGURATION_BUILD_DIR=${objectiveCBuildDirectory.path}',
             'COMPILER_INDEX_STORE_ENABLE=NO',
           ],
           canFail: true,
         )
       );

       if (!xcodebuildOutput.contains('flutter --verbose --local-engine-src-path=bogus assemble') || // Verbose output
           !xcodebuildOutput.contains('Unable to detect a Flutter engine build directory in bogus') ||
           !xcodebuildOutput.contains('Command PhaseScriptExecution failed with a nonzero exit code')) {
         return TaskResult.failure('Host Objective-C app build succeeded though flutter script failed');
       }

       section('Add to existing iOS Swift app');

       final Directory swiftHostApp = Directory(path.join(tempDir.path, 'hello_host_app_swift'));
       mkdir(swiftHostApp);
       recursiveCopy(
         Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'ios_host_app_swift')),
         swiftHostApp,
       );

       final File swiftAnalyticsOutputFile = File(path.join(tempDir.path, 'analytics-swift.log'));
       final Directory swiftBuildDirectory = Directory(path.join(tempDir.path, 'build-swift'));

       await inDirectory(swiftHostApp, () async {
         await exec(
           'pod',
           <String>['install'],
           environment: <String, String>{
             'LANG': 'en_US.UTF-8',
           },
         );
         await exec(
           'xcodebuild',
           <String>[
             '-workspace',
             'Host.xcworkspace',
             '-scheme',
             'Host',
             '-configuration',
             'Debug',
             'CODE_SIGNING_ALLOWED=NO',
             'CODE_SIGNING_REQUIRED=NO',
             'CODE_SIGN_IDENTITY=-',
             'EXPANDED_CODE_SIGN_IDENTITY=-',
             'CONFIGURATION_BUILD_DIR=${swiftBuildDirectory.path}',
             'COMPILER_INDEX_STORE_ENABLE=NO',
           ],
           environment: <String, String> {
             'FLUTTER_ANALYTICS_LOG_FILE': swiftAnalyticsOutputFile.path,
           },
         );
       });

       final bool existingSwiftAppBuilt = exists(File(path.join(
         swiftBuildDirectory.path,
         'Host.app',
         'Host',
       )));
       if (!existingSwiftAppBuilt) {
         return TaskResult.failure('Failed to build existing Swift app .app');
       }

       final String swiftAnalyticsOutput = swiftAnalyticsOutputFile.readAsStringSync();
       if (!swiftAnalyticsOutput.contains('cd24: ios')
           || !swiftAnalyticsOutput.contains('cd25: true')
           || !swiftAnalyticsOutput.contains('viewName: assemble')) {
         return TaskResult.failure(
           'Building outer Swift app produced the following analytics: "$swiftAnalyticsOutput" '
           'but not the expected strings: "cd24: ios", "cd25: true", "viewName: assemble"'
         );
       }

       return TaskResult.success(null);
     } catch (e) {
       return TaskResult.failure(e.toString());
     } finally {
       removeIOSimulator(simulatorDeviceId);
       rmTree(tempDir);
     }
   });
 }

 Future<bool> _isAppAotBuild(Directory app) async {
   final String binary = path.join(
     app.path,
     'Frameworks',
     'App.framework',
     'App',
   );

   final String symbolTable = await eval(
     'nm',
     <String> [
       '-gU',
       binary,
     ],
   );

   return symbolTable.contains('kDartIsolateSnapshotInstructions');
 }
	// 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 'dart:io';

	import 'package:flutter_devicelab/framework/framework.dart';
	import 'package:flutter_devicelab/framework/host_agent.dart';
	import 'package:flutter_devicelab/framework/ios.dart';
	import 'package:flutter_devicelab/framework/task_result.dart';
	import 'package:flutter_devicelab/framework/utils.dart';
	import 'package:path/path.dart' as path;

	/// Tests that the Flutter module project template works and supports
	/// adding Flutter to an existing iOS app.
	Future<void> main() async {
	await task(() async {
	String simulatorDeviceId;
	section('Create Flutter module project');

	final Directory tempDir = Directory.systemTemp.createTempSync('flutter_module_test.');
	final Directory projectDir = Directory(path.join(tempDir.path, 'hello'));
	try {
	await inDirectory(tempDir, () async {
	await flutter(
	'create',
	options: <String>[
	'--org',
	'io.flutter.devicelab',
	'--template=module',
	'hello',
	],
	);
	});

	// Copy test dart files to new module app.
	final Directory flutterModuleLibSource = Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'ios_host_app', 'flutterapp', 'lib'));
	final Directory flutterModuleLibDestination = Directory(path.join(projectDir.path, 'lib'));

	// These test files don't have a .dart prefix so the analyzer will ignore them. They aren't in a
	// package and don't work on their own outside of the test module just created.
	final File main = File(path.join(flutterModuleLibSource.path, 'main'));
	main.copySync(path.join(flutterModuleLibDestination.path, 'main.dart'));

	final File marquee = File(path.join(flutterModuleLibSource.path, 'marquee'));
	marquee.copySync(path.join(flutterModuleLibDestination.path, 'marquee.dart'));

	section('Build ephemeral host app in release mode without CocoaPods');

	await inDirectory(projectDir, () async {
	await flutter(
	'build',
	options: <String>['ios', '--no-codesign'],
	);
	});

	final Directory ephemeralIOSHostApp = Directory(path.join(
	projectDir.path,
	'build',
	'ios',
	'iphoneos',
	'Runner.app',
	));

	if (!exists(ephemeralIOSHostApp)) {
	return TaskResult.failure('Failed to build ephemeral host .app');
	}

	if (!await _isAppAotBuild(ephemeralIOSHostApp)) {
	return TaskResult.failure(
	'Ephemeral host app ${ephemeralIOSHostApp.path} was not a release build as expected'
	);
	}

	section('Clean build');

	await inDirectory(projectDir, () async {
	await flutter('clean');
	});

	section('Build ephemeral host app in profile mode without CocoaPods');

	await inDirectory(projectDir, () async {
	await flutter(
	'build',
	options: <String>['ios', '--no-codesign', '--profile'],
	);
	});

	if (!exists(ephemeralIOSHostApp)) {
	return TaskResult.failure('Failed to build ephemeral host .app');
	}

	if (!await _isAppAotBuild(ephemeralIOSHostApp)) {
	return TaskResult.failure(
	'Ephemeral host app ${ephemeralIOSHostApp.path} was not a profile build as expected'
	);
	}

	section('Clean build');

	await inDirectory(projectDir, () async {
	await flutter('clean');
	});

	section('Build ephemeral host app in debug mode for simulator without CocoaPods');

	await inDirectory(projectDir, () async {
	await flutter(
	'build',
	options: <String>['ios', '--no-codesign', '--simulator', '--debug'],
	);
	});

	final Directory ephemeralSimulatorHostApp = Directory(path.join(
	projectDir.path,
	'build',
	'ios',
	'iphonesimulator',
	'Runner.app',
	));

	if (!exists(ephemeralSimulatorHostApp)) {
	return TaskResult.failure('Failed to build ephemeral host .app');
	}

	if (!exists(File(path.join(
	ephemeralSimulatorHostApp.path,
	'Frameworks',
	'App.framework',
	'flutter_assets',
	'isolate_snapshot_data',
	)))) {
	return TaskResult.failure(
	'Ephemeral host app ${ephemeralSimulatorHostApp.path} was not a debug build as expected'
	);
	}

	section('Clean build');

	await inDirectory(projectDir, () async {
	await flutter('clean');
	});

	section('Add plugins');

	final File pubspec = File(path.join(projectDir.path, 'pubspec.yaml'));
	String content = await pubspec.readAsString();
	content = content.replaceFirst(
	'\ndependencies:\n',
	// One dynamic framework, one static framework, and one that does not support iOS.
	'\ndependencies:\n device_info: 0.4.2+4\n google_sign_in: 4.5.1\n android_alarm_manager: 0.4.5+11\n',
	);
	await pubspec.writeAsString(content, flush: true);
	await inDirectory(projectDir, () async {
	await flutter(
	'packages',
	options: <String>['get'],
	);
	});

	section('Build ephemeral host app with CocoaPods');

	await inDirectory(projectDir, () async {
	await flutter(
	'build',
	options: <String>['ios', '--no-codesign', '-v'],
	);
	});

	final bool ephemeralHostAppWithCocoaPodsBuilt = exists(ephemeralIOSHostApp);

	if (!ephemeralHostAppWithCocoaPodsBuilt) {
	return TaskResult.failure('Failed to build ephemeral host .app with CocoaPods');
	}

	final File podfileLockFile = File(path.join(projectDir.path, '.ios', 'Podfile.lock'));
	final String podfileLockOutput = podfileLockFile.readAsStringSync();
	if (!podfileLockOutput.contains(':path: Flutter')
	\|\| !podfileLockOutput.contains(':path: Flutter/FlutterPluginRegistrant')
	\|\| !podfileLockOutput.contains(':path: ".symlinks/plugins/device_info/ios"')
	\|\| !podfileLockOutput.contains(':path: ".symlinks/plugins/google_sign_in/ios"')
	\|\| podfileLockOutput.contains('android_alarm_manager')) {
	print(podfileLockOutput);
	return TaskResult.failure('Building ephemeral host app Podfile.lock does not contain expected pods');
	}

	checkFileExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'device_info.framework', 'device_info'));

	// Static, no embedded framework.
	checkDirectoryNotExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'google_sign_in.framework'));

	// Android-only, no embedded framework.
	checkDirectoryNotExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'android_alarm_manager.framework'));

	section('Clean and pub get module');

	await inDirectory(projectDir, () async {
	await flutter('clean');
	});

	await inDirectory(projectDir, () async {
	await flutter('pub', options: <String>['get']);
	});

	section('Add to existing iOS Objective-C app');

	final Directory objectiveCHostApp = Directory(path.join(tempDir.path, 'hello_host_app'));
	mkdir(objectiveCHostApp);
	recursiveCopy(
	Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'ios_host_app')),
	objectiveCHostApp,
	);

	final File objectiveCAnalyticsOutputFile = File(path.join(tempDir.path, 'analytics-objc.log'));
	final Directory objectiveCBuildDirectory = Directory(path.join(tempDir.path, 'build-objc'));
	await inDirectory(objectiveCHostApp, () async {
	await exec(
	'pod',
	<String>['install'],
	environment: <String, String>{
	'LANG': 'en_US.UTF-8',
	},
	);

	final File hostPodfileLockFile = File(path.join(objectiveCHostApp.path, 'Podfile.lock'));
	final String hostPodfileLockOutput = hostPodfileLockFile.readAsStringSync();
	if (!hostPodfileLockOutput.contains(':path: "../hello/.ios/Flutter/engine"')
	\|\| !hostPodfileLockOutput.contains(':path: "../hello/.ios/Flutter/FlutterPluginRegistrant"')
	\|\| !hostPodfileLockOutput.contains(':path: "../hello/.ios/.symlinks/plugins/device_info/ios"')
	\|\| !hostPodfileLockOutput.contains(':path: "../hello/.ios/.symlinks/plugins/google_sign_in/ios"')
	\|\| hostPodfileLockOutput.contains('android_alarm_manager')) {
	print(hostPodfileLockOutput);
	throw TaskResult.failure('Building host app Podfile.lock does not contain expected pods');
	}

	await exec(
	'xcodebuild',
	<String>[
	'-workspace',
	'Host.xcworkspace',
	'-scheme',
	'Host',
	'-configuration',
	'Debug',
	'CODE_SIGNING_ALLOWED=NO',
	'CODE_SIGNING_REQUIRED=NO',
	'CODE_SIGN_IDENTITY=-',
	'EXPANDED_CODE_SIGN_IDENTITY=-',
	'CONFIGURATION_BUILD_DIR=${objectiveCBuildDirectory.path}',
	'COMPILER_INDEX_STORE_ENABLE=NO',
	],
	environment: <String, String> {
	'FLUTTER_ANALYTICS_LOG_FILE': objectiveCAnalyticsOutputFile.path,
	},
	);
	});

	final bool existingAppBuilt = exists(File(path.join(
	objectiveCBuildDirectory.path,
	'Host.app',
	'Host',
	)));
	if (!existingAppBuilt) {
	return TaskResult.failure('Failed to build existing Objective-C app .app');
	}

	checkFileExists(path.join(
	objectiveCBuildDirectory.path,
	'Host.app',
	'Frameworks',
	'Flutter.framework',
	'Flutter',
	));

	checkFileExists(path.join(
	objectiveCBuildDirectory.path,
	'Host.app',
	'Frameworks',
	'App.framework',
	'flutter_assets',
	'isolate_snapshot_data',
	));

	final String objectiveCAnalyticsOutput = objectiveCAnalyticsOutputFile.readAsStringSync();
	if (!objectiveCAnalyticsOutput.contains('cd24: ios')
	\|\| !objectiveCAnalyticsOutput.contains('cd25: true')
	\|\| !objectiveCAnalyticsOutput.contains('viewName: assemble')) {
	return TaskResult.failure(
	'Building outer Objective-C app produced the following analytics: "$objectiveCAnalyticsOutput" '
	'but not the expected strings: "cd24: ios", "cd25: true", "viewName: assemble"'
	);
	}

	section('Run platform unit tests');

	final String resultBundleTemp = Directory.systemTemp.createTempSync('module_test_ios_xcresult.').path;
	await testWithNewIOSSimulator('TestAdd2AppSim', (String deviceId) async {
	simulatorDeviceId = deviceId;
	final String resultBundlePath = path.join(resultBundleTemp, 'result');

	final int testResultExit = await exec(
	'xcodebuild',
	<String>[
	'-workspace',
	'Host.xcworkspace',
	'-scheme',
	'Host',
	'-configuration',
	'Debug',
	'-destination',
	'id=$deviceId',
	'-resultBundlePath',
	resultBundlePath,
	'test',
	'CODE_SIGNING_ALLOWED=NO',
	'CODE_SIGNING_REQUIRED=NO',
	'CODE_SIGN_IDENTITY=-',
	'EXPANDED_CODE_SIGN_IDENTITY=-',
	'COMPILER_INDEX_STORE_ENABLE=NO',
	],
	workingDirectory: objectiveCHostApp.path,
	canFail: true,
	);

	if (testResultExit != 0) {
	// Zip the test results to the artifacts directory for upload.
	await inDirectory(resultBundleTemp, () {
	final String zipPath = path.join(hostAgent.dumpDirectory.path,
	'module_test_ios-objc-${DateTime.now().toLocal().toIso8601String()}.zip');
	return exec(
	'zip',
	<String>[
	'-r',
	'-9',
	zipPath,
	'result.xcresult',
	],
	canFail: true, // Best effort to get the logs.
	);
	});

	throw TaskResult.failure('Platform unit tests failed');
	}
	});

	section('Fail building existing Objective-C iOS app if flutter script fails');
	final String xcodebuildOutput = await inDirectory<String>(objectiveCHostApp, () =>
	eval(
	'xcodebuild',
	<String>[
	'-workspace',
	'Host.xcworkspace',
	'-scheme',
	'Host',
	'-configuration',
	'Debug',
	'FLUTTER_ENGINE=bogus', // Force a Flutter error.
	'CODE_SIGNING_ALLOWED=NO',
	'CODE_SIGNING_REQUIRED=NO',
	'CODE_SIGN_IDENTITY=-',
	'EXPANDED_CODE_SIGN_IDENTITY=-',
	'CONFIGURATION_BUILD_DIR=${objectiveCBuildDirectory.path}',
	'COMPILER_INDEX_STORE_ENABLE=NO',
	],
	canFail: true,
	)
	);

	if (!xcodebuildOutput.contains('flutter --verbose --local-engine-src-path=bogus assemble') \|\| // Verbose output
	!xcodebuildOutput.contains('Unable to detect a Flutter engine build directory in bogus') \|\|
	!xcodebuildOutput.contains('Command PhaseScriptExecution failed with a nonzero exit code')) {
	return TaskResult.failure('Host Objective-C app build succeeded though flutter script failed');
	}

	section('Add to existing iOS Swift app');

	final Directory swiftHostApp = Directory(path.join(tempDir.path, 'hello_host_app_swift'));
	mkdir(swiftHostApp);
	recursiveCopy(
	Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'ios_host_app_swift')),
	swiftHostApp,
	);

	final File swiftAnalyticsOutputFile = File(path.join(tempDir.path, 'analytics-swift.log'));
	final Directory swiftBuildDirectory = Directory(path.join(tempDir.path, 'build-swift'));

	await inDirectory(swiftHostApp, () async {
	await exec(
	'pod',
	<String>['install'],
	environment: <String, String>{
	'LANG': 'en_US.UTF-8',
	},
	);
	await exec(
	'xcodebuild',
	<String>[
	'-workspace',
	'Host.xcworkspace',
	'-scheme',
	'Host',
	'-configuration',
	'Debug',
	'CODE_SIGNING_ALLOWED=NO',
	'CODE_SIGNING_REQUIRED=NO',
	'CODE_SIGN_IDENTITY=-',
	'EXPANDED_CODE_SIGN_IDENTITY=-',
	'CONFIGURATION_BUILD_DIR=${swiftBuildDirectory.path}',
	'COMPILER_INDEX_STORE_ENABLE=NO',
	],
	environment: <String, String> {
	'FLUTTER_ANALYTICS_LOG_FILE': swiftAnalyticsOutputFile.path,
	},
	);
	});

	final bool existingSwiftAppBuilt = exists(File(path.join(
	swiftBuildDirectory.path,
	'Host.app',
	'Host',
	)));
	if (!existingSwiftAppBuilt) {
	return TaskResult.failure('Failed to build existing Swift app .app');
	}

	final String swiftAnalyticsOutput = swiftAnalyticsOutputFile.readAsStringSync();
	if (!swiftAnalyticsOutput.contains('cd24: ios')
	\|\| !swiftAnalyticsOutput.contains('cd25: true')
	\|\| !swiftAnalyticsOutput.contains('viewName: assemble')) {
	return TaskResult.failure(
	'Building outer Swift app produced the following analytics: "$swiftAnalyticsOutput" '
	'but not the expected strings: "cd24: ios", "cd25: true", "viewName: assemble"'
	);
	}

	return TaskResult.success(null);
	} catch (e) {
	return TaskResult.failure(e.toString());
	} finally {
	removeIOSimulator(simulatorDeviceId);
	rmTree(tempDir);
	}
	});
	}

	Future<bool> _isAppAotBuild(Directory app) async {
	final String binary = path.join(
	app.path,
	'Frameworks',
	'App.framework',
	'App',
	);

	final String symbolTable = await eval(
	'nm',
	<String> [
	'-gU',
	binary,
	],
	);

	return symbolTable.contains('kDartIsolateSnapshotInstructions');
	}