Remove group() support from package:litetest (flutter#26342)

Author: zanderso

testing/dart/dart_test.dart

@@ -9,19 +9,17 @@ import 'package:litetest/litetest.dart';
 
 /// Verifies Dart semantics governed by flags set by Flutter tooling.
 void main() {
-  group('Async', () {
-    String greeting = 'hello';
-    Future<void> changeGreeting() async {
-      greeting += ' 1';
-      await Future<void>.value(null);
-      greeting += ' 2';
-    }
-    test('execution of async method starts synchronously', () async {
-      expect(greeting, 'hello');
-      final Future<void> future = changeGreeting();
-      expect(greeting, 'hello 1');
-      await future;
-      expect(greeting, 'hello 1 2');
-    });
+  String greeting = 'hello';
+  Future<void> changeGreeting() async {
+    greeting += ' 1';
+    await Future<void>.value(null);
+    greeting += ' 2';
+  }
+  test('execution of async method starts synchronously', () async {
+    expect(greeting, 'hello');
+    final Future<void> future = changeGreeting();
+    expect(greeting, 'hello 1');
+    await future;
+    expect(greeting, 'hello 1 2');
   });
 }

testing/dart/encoding_test.dart

@@ -18,47 +18,39 @@ const Color _kBlack = Color.fromRGBO(0, 0, 0, 1.0);
 const Color _kGreen = Color.fromRGBO(0, 255, 0, 1.0);
 
 void main() {
-  group('Image.toByteData', () {
-    group('RGBA format', () {
-      test('works with simple image', () async {
-        final Image image = await Square4x4Image.image;
-        final ByteData data = await image.toByteData();
-        expect(Uint8List.view(data.buffer), Square4x4Image.bytes);
-      });
-
-      test('converts grayscale images', () async {
-        final Image image = await GrayscaleImage.load();
-        final ByteData data = await image.toByteData();
-        final Uint8List bytes = data.buffer.asUint8List();
-        expect(bytes, hasLength(16));
-        expect(bytes, GrayscaleImage.bytesAsRgba);
-      });
-    });
-
-    group('Unmodified format', () {
-      test('works with simple image', () async {
-        final Image image = await Square4x4Image.image;
-        final ByteData data = await image.toByteData(format: ImageByteFormat.rawUnmodified);
-        expect(Uint8List.view(data.buffer), Square4x4Image.bytes);
-      });
-
-      test('works with grayscale images', () async {
-        final Image image = await GrayscaleImage.load();
-        final ByteData data = await image.toByteData(format: ImageByteFormat.rawUnmodified);
-        final Uint8List bytes = data.buffer.asUint8List();
-        expect(bytes, hasLength(4));
-        expect(bytes, GrayscaleImage.bytesUnmodified);
-      });
-    });
-
-    group('PNG format', () {
-      test('works with simple image', () async {
-        final Image image = await Square4x4Image.image;
-        final ByteData data = await image.toByteData(format: ImageByteFormat.png);
-        final List<int> expected = await readFile('square.png');
-        expect(Uint8List.view(data.buffer), expected);
-      });
-    });
+  test('Image.toByteData RGBA format works with simple image', () async {
+    final Image image = await Square4x4Image.image;
+    final ByteData data = await image.toByteData();
+    expect(Uint8List.view(data.buffer), Square4x4Image.bytes);
+  });
+
+  test('Image.toByteData RGBA format converts grayscale images', () async {
+    final Image image = await GrayscaleImage.load();
+    final ByteData data = await image.toByteData();
+    final Uint8List bytes = data.buffer.asUint8List();
+    expect(bytes, hasLength(16));
+    expect(bytes, GrayscaleImage.bytesAsRgba);
+  });
+
+  test('Image.toByteData Unmodified format works with simple image', () async {
+    final Image image = await Square4x4Image.image;
+    final ByteData data = await image.toByteData(format: ImageByteFormat.rawUnmodified);
+    expect(Uint8List.view(data.buffer), Square4x4Image.bytes);
+  });
+
+  test('Image.toByteData Unmodified format works with grayscale images', () async {
+    final Image image = await GrayscaleImage.load();
+    final ByteData data = await image.toByteData(format: ImageByteFormat.rawUnmodified);
+    final Uint8List bytes = data.buffer.asUint8List();
+    expect(bytes, hasLength(4));
+    expect(bytes, GrayscaleImage.bytesUnmodified);
+  });
+
+  test('Image.toByteData PNG format works with simple image', () async {
+    final Image image = await Square4x4Image.image;
+    final ByteData data = await image.toByteData(format: ImageByteFormat.png);
+    final List<int> expected = await readFile('square.png');
+    expect(Uint8List.view(data.buffer), expected);
   });
 }