Do not merge - testing new Gold backend

.ci.yaml

@@ -140,6 +140,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       add_recipes_cq: "true"
       target_file: dart_unit_tests.yaml
       channel: master
@@ -155,6 +159,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: dart_unit_tests.yaml
       channel: master
       version_file: flutter_master.version
@@ -169,6 +177,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: dart_unit_tests.yaml
       channel: stable
       version_file: flutter_stable.version
@@ -183,6 +195,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: dart_unit_tests.yaml
       channel: stable
       version_file: flutter_stable.version
@@ -197,6 +213,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       add_recipes_cq: "true"
       target_file: web_dart_unit_tests.yaml
       channel: master
@@ -212,6 +232,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: web_dart_unit_tests.yaml
       channel: master
       version_file: flutter_master.version
@@ -226,6 +250,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: web_dart_unit_tests.yaml
       channel: stable
       version_file: flutter_stable.version
@@ -240,6 +268,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: web_dart_unit_tests.yaml
       channel: stable
       version_file: flutter_stable.version
@@ -255,6 +287,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       add_recipes_cq: "true"
       target_file: web_dart_unit_tests_wasm.yaml
       channel: master
@@ -270,6 +306,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: web_dart_unit_tests_wasm.yaml
       channel: master
       version_file: flutter_master.version
@@ -1316,6 +1356,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: windows_dart_unit_tests.yaml
       channel: master
       version_file: flutter_master.version
@@ -1330,6 +1374,10 @@ targets:
     recipe: packages/packages
     timeout: 60
     properties:
+      dependencies: >-
+        [
+          {"dependency": "goldctl", "version": "git_revision:2387d6fff449587eecbb7e45b2692ca0710b63b9"}
+        ]
       target_file: windows_dart_unit_tests.yaml
       channel: master
       version_file: flutter_master.version

packages/two_dimensional_scrollables/pubspec.yaml

@@ -13,6 +13,8 @@ dependencies:
     sdk: flutter
 
 dev_dependencies:
+  flutter_goldens:
+    sdk: flutter
   flutter_test:
     sdk: flutter
 

packages/two_dimensional_scrollables/test/common/span_test.dart

@@ -8,6 +8,19 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:two_dimensional_scrollables/two_dimensional_scrollables.dart';
 
 void main() {
+
+testWidgets('Inconsequential golden test', (WidgetTester tester) async {
+    // The test validates the Flutter Gold integration. Any changes to the
+    // golden file can be approved at any time.
+    await tester.pumpWidget(RepaintBoundary(child: Container(color: const Color(0xAFF61145))));
+
+    await tester.pumpAndSettle();
+    await expectLater(
+      find.byType(RepaintBoundary),
+      matchesGoldenFile('inconsequential_golden_file.png'),
+    );
+  });
+
   group('SpanExtent', () {
     test('FixedSpanExtent', () {
       var extent = const FixedSpanExtent(150);

packages/two_dimensional_scrollables/test/flutter_test_config.dart

@@ -0,0 +1,22 @@
+// 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.
+
+
+// Initial testing of instance only, not for merging.
+// Plenty to do next (if this works):
+// - verify service accounts used by Luci in pre/post submit tests in flutter/packages, auth works
+// - Get new Gold frontend up
+// - document how to enable golden file testing for a package
+// - update flutter/cocoon to add flutter-gold check for triage
+
+import 'dart:async';
+
+import 'goldens_io.dart'
+    if (dart.library.js_interop) 'goldens_web.dart'
+    as flutter_goldens;
+
+Future<void> testExecutable(FutureOr<void> Function() testMain) {
+  // Enable golden file testing using Skia Gold.
+  return flutter_goldens.testExecutable(testMain, namePrefix: 'two_dimensional_scrollables');
+}

packages/two_dimensional_scrollables/test/goldens_io.dart

@@ -0,0 +1,5 @@
+// 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.
+
+export 'package:flutter_goldens/flutter_goldens.dart' show testExecutable;

packages/two_dimensional_scrollables/test/goldens_web.dart

@@ -0,0 +1,9 @@
+// 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';
+
+// package:flutter_goldens is not used as part of the test process for web.
+Future<void> testExecutable(FutureOr<void> Function() testMain, {String? namePrefix}) async =>
+    testMain();