fix(test): flutter_test compatibility

test/src/cli/flutter_cli_test.dart

@@ -60,6 +60,15 @@ void main() {
  });
 }''';
 
+const flutterTestContents = '''
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+ test('example', () {
+ expect(true, isTrue);
+ });
+}''';
+
 const longTestNameContents = '''
 import 'package:test/test.dart';
 
@@ -151,6 +160,15 @@ environment:
 dev_dependencies:
  test: any''';
 
+const pubspecFlutter = '''
+name: example
+environment:
+ sdk: ">=2.13.0 <3.0.0"
+
+dev_dependencies:
+ flutter_test:
+ sdk: flutter''';
+
 const invalidPubspec = 'name: example';
 
 class MockLogger extends Mock implements Logger {}
@@ -596,7 +614,8 @@ void main() {
  ).called(1);
  });
 
- test('completes when there is a test directory w/optimizations (passing)',
+ test(
+ 'completes when there is a test directory w/optimizations Dart (passing)',
  () async {
  final directory = Directory.systemTemp.createTempSync();
  final testDirectory = Directory(p.join(directory.path, 'test'))
@@ -630,6 +649,43 @@ void main() {
  ).called(1);
  });
 
+ test(
+ 'completes when there is a test directory w/optimizations Flutter (passing)',
+ () async {
+ final directory = Directory.systemTemp.createTempSync();
+ final testDirectory = Directory(p.join(directory.path, 'test'))
+ ..createSync();
+ File(
+ p.join(directory.path, 'pubspec.yaml'),
+ ).writeAsStringSync(pubspecFlutter);
+ File(
+ p.join(testDirectory.path, 'example_test.dart'),
+ ).writeAsStringSync(flutterTestContents);
+ await expectLater(
+ Flutter.test(
+ cwd: directory.path,
+ optimizePerformance: true,
+ stdout: logger.write,
+ stderr: logger.err,
+ progress: logger.progress,
+ ),
+ completes,
+ );
+ verify(() => logger.progress('Optimizing tests')).called(1);
+ verify(
+ () => logger.write(
+ any(
+ that: contains(
+ 'Running "flutter test" in ${p.dirname(directory.path)}',
+ ),
+ ),
+ ),
+ ).called(1);
+ verify(
+ () => logger.write(any(that: contains('+1: All tests passed!'))),
+ ).called(1);
+ });
+
  test('completes when there is a test directory (recursive)', () async {
  final directory = Directory.systemTemp.createTempSync();
  final nestedDirectory = Directory(p.join(directory.path, 'nested'))