[flutter_tools] port deprecated settings test to flutter integration shard (#65806)

Port the deprecated settings devicelab test to tool integration shard. Tests that apps can be built using the deprecated android/settings.gradle file.

Part of #65790

dev/bots/test.dart

@@ -1243,7 +1243,6 @@ Future<void> _runHostOnlyDeviceLabTests() async {
     // TODO(ianh): Fails on macOS looking for "dexdump", https://github.com/flutter/flutter/issues/42494
     if (!Platform.isMacOS) () => _runDevicelabTest('gradle_jetifier_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_non_android_plugin_test', environment: gradleEnvironment),
-    () => _runDevicelabTest('gradle_deprecated_settings_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_plugin_bundle_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_plugin_fat_apk_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_plugin_light_apk_test', environment: gradleEnvironment),

dev/devicelab/bin/tasks/gradle_deprecated_settings_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 'dart:async';
-import 'dart:io';
-
-import 'package:flutter_devicelab/framework/framework.dart';
-import 'package:flutter_devicelab/framework/utils.dart';
-import 'package:path/path.dart' as path;
-
-/// Tests that apps can be built using the deprecated `android/settings.gradle` file.
-/// This test should be removed once apps have been migrated to this new file.
-// TODO(egarciad): Migrate existing files, https://github.com/flutter/flutter/issues/54566
-Future<void> main() async {
-  await task(() async {
-
-    section('Find Java');
-
-    final String javaHome = await findJavaHome();
-    if (javaHome == null)
-      return TaskResult.failure('Could not find Java');
-    print('\nUsing JAVA_HOME=$javaHome');
-
-    final Directory projectDirectory =
-        dir('${flutterDirectory.path}/dev/integration_tests/gradle_deprecated_settings');
-    try {
-      section('Build debug APK using deprecated settings.gradle');
-      await inDirectory(projectDirectory, () async {
-        await flutter(
-          'build',
-          options: <String>[
-            'apk',
-            '--debug',
-            '--target-platform', 'android-arm',
-            '--no-shrink',
-            '--verbose',
-          ],
-        );
-      });
-      final File debugApk = File(path.join(
-        projectDirectory.path,
-        'build',
-        'app',
-        'outputs',
-        'flutter-apk',
-        'app-debug.apk',
-      ));
-      if (!exists(debugApk)) {
-        return TaskResult.failure('Failed to build debug APK.');
-      }
-      return TaskResult.success(null);
-    } catch (e) {
-      return TaskResult.failure(e.toString());
-    }
-  });
-}

packages/flutter_tools/test/integration.shard/deprecated_gradle_settings_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_testing/file_testing.dart';
+import 'package:flutter_tools/src/base/io.dart';
+
+import '../src/common.dart';
+import 'test_utils.dart';
+
+/// Tests that apps can be built using the deprecated `android/settings.gradle` file.
+/// This test should be removed once apps have been migrated to this new file.
+// TODO(egarciad): Migrate existing files, https://github.com/flutter/flutter/issues/54566
+void main() {
+  test('android project using deprecated settings.gradle will still build', () async {
+    final String woringDirectory = fileSystem.path.join(getFlutterRoot(), 'dev', 'integration_tests', 'gradle_deprecated_settings');
+    final String flutterBin = fileSystem.path.join(getFlutterRoot(), 'bin', 'flutter');
+
+    final ProcessResult result = await processManager.run(<String>[
+      flutterBin,
+      'build',
+      'apk',
+      '--debug',
+      '--target-platform', 'android-arm',
+      '--no-shrink',
+      '--verbose',
+    ], workingDirectory: woringDirectory);
+    print(result.stdout);
+    print(result.stderr);
+
+    expect(result.exitCode, 0);
+
+    final String apkPath = fileSystem.path.join(
+      woringDirectory, 'build', 'app', 'outputs', 'flutter-apk', 'app-debug.apk');
+    expect(fileSystem.file(apkPath), exists);
+  });
+}