Add:创建 flutter go web 版

packages/flutter_web/test/rendering/debug_rendering_test.dart

@@ -0,0 +1,162 @@
+// Copyright 2015 The Chromium 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:flutter_web/foundation.dart';
+import 'package:flutter_web/rendering.dart';
+import 'package:vector_math/vector_math_64.dart';
+
+import '../flutter_test_alternative.dart';
+import 'mock_canvas.dart';
+import 'rendering_tester.dart';
+
+void main() {
+  test('Describe transform control test', () {
+    final Matrix4 identity = Matrix4.identity();
+    final List<String> description = debugDescribeTransform(identity);
+    expect(
+        description,
+        equals(<String>[
+          '[0] 1.0,0.0,0.0,0.0',
+          '[1] 0.0,1.0,0.0,0.0',
+          '[2] 0.0,0.0,1.0,0.0',
+          '[3] 0.0,0.0,0.0,1.0',
+        ]));
+  });
+
+  test('transform property test', () {
+    final Matrix4 transform = Matrix4.diagonal3(Vector3.all(2.0));
+    final TransformProperty simple = TransformProperty(
+      'transform',
+      transform,
+    );
+    expect(simple.name, equals('transform'));
+    expect(simple.value, same(transform));
+    expect(
+      simple.toString(parentConfiguration: sparseTextConfiguration),
+      equals(
+        'transform:\n'
+        '  [0] 2.0,0.0,0.0,0.0\n'
+        '  [1] 0.0,2.0,0.0,0.0\n'
+        '  [2] 0.0,0.0,2.0,0.0\n'
+        '  [3] 0.0,0.0,0.0,1.0',
+      ),
+    );
+    expect(
+      simple.toString(parentConfiguration: singleLineTextConfiguration),
+      equals(
+          'transform: [2.0,0.0,0.0,0.0; 0.0,2.0,0.0,0.0; 0.0,0.0,2.0,0.0; 0.0,0.0,0.0,1.0]'),
+    );
+
+    final TransformProperty nullProperty = TransformProperty(
+      'transform',
+      null,
+    );
+    expect(nullProperty.name, equals('transform'));
+    expect(nullProperty.value, isNull);
+    expect(nullProperty.toString(), equals('transform: null'));
+
+    final TransformProperty hideNull = TransformProperty(
+      'transform',
+      null,
+      defaultValue: null,
+    );
+    expect(hideNull.value, isNull);
+    expect(hideNull.toString(), equals('transform: null'));
+  });
+
+  test('debugPaintPadding', () {
+    expect((Canvas canvas) {
+      debugPaintPadding(canvas, Rect.fromLTRB(10.0, 10.0, 20.0, 20.0), null);
+    }, paints..rect(color: const Color(0x90909090)));
+    expect((Canvas canvas) {
+      debugPaintPadding(canvas, Rect.fromLTRB(10.0, 10.0, 20.0, 20.0),
+          Rect.fromLTRB(11.0, 11.0, 19.0, 19.0));
+    },
+        paints
+          ..path(color: const Color(0x900090FF))
+          ..path(color: const Color(0xFF0090FF)));
+    expect((Canvas canvas) {
+      debugPaintPadding(canvas, Rect.fromLTRB(10.0, 10.0, 20.0, 20.0),
+          Rect.fromLTRB(15.0, 15.0, 15.0, 15.0));
+    },
+        paints
+          ..rect(
+              rect: Rect.fromLTRB(10.0, 10.0, 20.0, 20.0),
+              color: const Color(0x90909090)));
+  });
+
+  test('debugPaintPadding from render objects', () {
+    debugPaintSizeEnabled = true;
+    RenderSliver s;
+    RenderBox b;
+    final RenderViewport root = RenderViewport(
+      crossAxisDirection: AxisDirection.right,
+      offset: ViewportOffset.zero(),
+      children: <RenderSliver>[
+        s = RenderSliverPadding(
+          padding: const EdgeInsets.all(10.0),
+          child: RenderSliverToBoxAdapter(
+            child: b = RenderPadding(
+              padding: const EdgeInsets.all(10.0),
+            ),
+          ),
+        ),
+      ],
+    );
+    layout(root);
+    expect(
+        b.debugPaint,
+        paints
+          ..rect(color: const Color(0xFF00FFFF))
+          ..rect(color: const Color(0x90909090)));
+    expect(b.debugPaint, isNot(paints..path()));
+    expect(
+        s.debugPaint,
+        paints
+          ..circle(hasMaskFilter: true)
+          ..line(hasMaskFilter: true)
+          ..path(hasMaskFilter: true)
+          ..path(hasMaskFilter: true)
+          ..path(color: const Color(0x900090FF))
+          ..path(color: const Color(0xFF0090FF)));
+    expect(s.debugPaint, isNot(paints..rect()));
+    debugPaintSizeEnabled = false;
+  });
+
+  test('debugPaintPadding from render objects', () {
+    debugPaintSizeEnabled = true;
+    RenderSliver s;
+    final RenderBox b = RenderPadding(
+      padding: const EdgeInsets.all(10.0),
+      child: RenderViewport(
+        crossAxisDirection: AxisDirection.right,
+        offset: ViewportOffset.zero(),
+        children: <RenderSliver>[
+          s = RenderSliverPadding(
+            padding: const EdgeInsets.all(10.0),
+          ),
+        ],
+      ),
+    );
+    layout(b);
+    expect(s.debugPaint, paints..rect(color: const Color(0x90909090)));
+    expect(
+        s.debugPaint,
+        isNot(paints
+          ..circle(hasMaskFilter: true)
+          ..line(hasMaskFilter: true)
+          ..path(hasMaskFilter: true)
+          ..path(hasMaskFilter: true)
+          ..path(color: const Color(0x900090FF))
+          ..path(color: const Color(0xFF0090FF))));
+    expect(
+        b.debugPaint,
+        paints
+          ..rect(color: const Color(0xFF00FFFF))
+          ..path(color: const Color(0x900090FF))
+          ..path(color: const Color(0xFF0090FF)));
+    expect(b.debugPaint, isNot(paints..rect(color: const Color(0x90909090))));
+    debugPaintSizeEnabled = false;
+  });
+}