diff --git a/packages/flutter_test/lib/flutter_test.dart b/packages/flutter_test/lib/flutter_test.dart
new file mode 100644
index 0000000000..9ba1d17a47
--- /dev/null
+++ b/packages/flutter_test/lib/flutter_test.dart
@@ -0,0 +1,8 @@
+// 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.
+
+library flutter_test;
+
+export 'src/test_pointer.dart';
+export 'src/widget_tester.dart';
diff --git a/packages/unit/test/engine/mock_events.dart b/packages/flutter_test/lib/src/test_pointer.dart
similarity index 89%
rename from packages/unit/test/engine/mock_events.dart
rename to packages/flutter_test/lib/src/test_pointer.dart
index 0255708bfb..49ed767986 100644
--- a/packages/unit/test/engine/mock_events.dart
+++ b/packages/flutter_test/lib/src/test_pointer.dart
@@ -1,3 +1,7 @@
+// 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 'dart:ui' as ui;
 
 import 'package:flutter/gestures.dart';
diff --git a/packages/unit/test/widget/widget_tester.dart b/packages/flutter_test/lib/src/widget_tester.dart
similarity index 92%
rename from packages/unit/test/widget/widget_tester.dart
rename to packages/flutter_test/lib/src/widget_tester.dart
index 5d24a8fcd6..3489ecc888 100644
--- a/packages/unit/test/widget/widget_tester.dart
+++ b/packages/flutter_test/lib/src/widget_tester.dart
@@ -11,24 +11,7 @@ import 'package:flutter/widgets.dart';
 import 'package:quiver/testing/async.dart';
 import 'package:quiver/time.dart';
 
-import '../engine/mock_events.dart';
-
-class RootComponent extends StatefulComponent {
-  RootComponentState createState() => new RootComponentState();
-}
-
-class RootComponentState extends State<RootComponent> {
-  Widget _child = new DecoratedBox(decoration: new BoxDecoration());
-  Widget get child => _child;
-  void set child(Widget value) {
-    if (value != _child) {
-      setState(() {
-        _child = value;
-      });
-    }
-  }
-  Widget build(BuildContext context) => child;
-}
+import 'test_pointer.dart';
 
 typedef Point SizeToPointFunction(Size size);
 
diff --git a/packages/flutter_test/pubspec.yaml b/packages/flutter_test/pubspec.yaml
new file mode 100644
index 0000000000..b286981ab9
--- /dev/null
+++ b/packages/flutter_test/pubspec.yaml
@@ -0,0 +1,10 @@
+name: flutter_test
+dependencies:
+  test: ^0.12.5
+  quiver: ^0.21.4
+  flutter:
+    path: ../flutter
+
+  # So that the test harness is available when running the tests.
+  flutter_tools:
+    path: ../flutter_tools
diff --git a/packages/unit/benchmark/stocks/animation_bench.dart b/packages/unit/benchmark/stocks/animation_bench.dart
index 869d9bad7a..bec8781e55 100644
--- a/packages/unit/benchmark/stocks/animation_bench.dart
+++ b/packages/unit/benchmark/stocks/animation_bench.dart
@@ -1,10 +1,10 @@
 import 'dart:io';
 
-import 'package:flutter/rendering.dart';
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
 import 'package:stocks/main.dart' as stocks;
 import 'package:stocks/stock_data.dart' as stock_data;
-import '../../test/widget/widget_tester.dart';
 
 const int _kNumberOfIterations = 50000;
 const bool _kRunForever = false;
diff --git a/packages/unit/benchmark/stocks/build_bench.dart b/packages/unit/benchmark/stocks/build_bench.dart
index 23c674277e..6815e9c24c 100644
--- a/packages/unit/benchmark/stocks/build_bench.dart
+++ b/packages/unit/benchmark/stocks/build_bench.dart
@@ -1,10 +1,10 @@
 import 'dart:io';
 
-import 'package:flutter/rendering.dart';
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
 import 'package:stocks/main.dart' as stocks;
 import 'package:stocks/stock_data.dart' as stock_data;
-import '../../test/widget/widget_tester.dart';
 
 const int _kNumberOfIterations = 100000;
 const bool _kRunForever = false;
diff --git a/packages/unit/benchmark/stocks/layout_bench.dart b/packages/unit/benchmark/stocks/layout_bench.dart
index 285a19801b..11adc48032 100644
--- a/packages/unit/benchmark/stocks/layout_bench.dart
+++ b/packages/unit/benchmark/stocks/layout_bench.dart
@@ -1,10 +1,10 @@
 import 'dart:io';
 
-import 'package:flutter/rendering.dart';
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
 import 'package:stocks/main.dart' as stocks;
 import 'package:stocks/stock_data.dart' as stock_data;
-import '../../test/widget/widget_tester.dart';
 
 const int _kNumberOfIterations = 100000;
 const bool _kRunForever = false;
diff --git a/packages/unit/pubspec.yaml b/packages/unit/pubspec.yaml
index 41f9d23342..6b5440b738 100644
--- a/packages/unit/pubspec.yaml
+++ b/packages/unit/pubspec.yaml
@@ -1,13 +1,10 @@
 name: flutter_unit_tests
 dependencies:
-  test: ^0.12.5
-  quiver: ^0.21.4
   flx:
     path: ../flx
   flutter:
     path: ../flutter
+  flutter_test:
+    path: ../flutter_test
   stocks:
     path: ../../examples/stocks
-  # To ensure the version of test doesn't get out of sync.
-  flutter_tools:
-    path: ../flutter_tools
diff --git a/packages/unit/test/gestures/pointer_router_test.dart b/packages/unit/test/gestures/pointer_router_test.dart
index a89f469430..994e9254f5 100644
--- a/packages/unit/test/gestures/pointer_router_test.dart
+++ b/packages/unit/test/gestures/pointer_router_test.dart
@@ -1,8 +1,7 @@
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/gestures.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-
 void main() {
   test('Should route pointers', () {
     bool callbackRan = false;
diff --git a/packages/unit/test/gestures/scale_test.dart b/packages/unit/test/gestures/scale_test.dart
index 149d14be0a..8ff5e422df 100644
--- a/packages/unit/test/gestures/scale_test.dart
+++ b/packages/unit/test/gestures/scale_test.dart
@@ -1,10 +1,9 @@
 import 'dart:ui' as ui;
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/gestures.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-
 void main() {
   test('Should recognize scale gestures', () {
     PointerRouter router = new PointerRouter();
diff --git a/packages/unit/test/gestures/scroll_test.dart b/packages/unit/test/gestures/scroll_test.dart
index 9c1c049216..b4d5c32f8c 100644
--- a/packages/unit/test/gestures/scroll_test.dart
+++ b/packages/unit/test/gestures/scroll_test.dart
@@ -1,10 +1,9 @@
 import 'dart:ui' as ui;
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/gestures.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-
 void main() {
   test('Should recognize pan', () {
     PointerRouter router = new PointerRouter();
diff --git a/packages/unit/test/widget/align_test.dart b/packages/unit/test/widget/align_test.dart
index 6a42aee908..7081dbbf56 100644
--- a/packages/unit/test/widget/align_test.dart
+++ b/packages/unit/test/widget/align_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Align smoke test', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/animated_container_test.dart b/packages/unit/test/widget/animated_container_test.dart
index b048e0e334..0132ac9922 100644
--- a/packages/unit/test/widget/animated_container_test.dart
+++ b/packages/unit/test/widget/animated_container_test.dart
@@ -2,13 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/animation.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('AnimatedContainer control test', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/block_test.dart b/packages/unit/test/widget/block_test.dart
index 88075291fe..74f7dc48de 100644
--- a/packages/unit/test/widget/block_test.dart
+++ b/packages/unit/test/widget/block_test.dart
@@ -2,12 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-import 'widget_tester.dart';
-
 final Key blockKey = new Key('test');
 
 void main() {
diff --git a/packages/unit/test/widget/bottom_sheet_test.dart b/packages/unit/test/widget/bottom_sheet_test.dart
index 4f07baf0bc..e9d42469cc 100644
--- a/packages/unit/test/widget/bottom_sheet_test.dart
+++ b/packages/unit/test/widget/bottom_sheet_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Verify that a tap dismisses a modal BottomSheet', () {
     testWidgets((WidgetTester tester) {
@@ -79,7 +78,7 @@ void main() {
       expect(showBottomSheetThenCalled, isFalse);
       expect(tester.findText('BottomSheet'), isNull);
 
-      scaffoldKey.currentState.showBottomSheet((BuildContext context) { 
+      scaffoldKey.currentState.showBottomSheet((BuildContext context) {
         return new Container(
           margin: new EdgeDims.all(40.0),
           child: new Text('BottomSheet')
diff --git a/packages/unit/test/widget/box_decoration_test.dart b/packages/unit/test/widget/box_decoration_test.dart
index 01bad08c47..ba7df219a9 100644
--- a/packages/unit/test/widget/box_decoration_test.dart
+++ b/packages/unit/test/widget/box_decoration_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Circles can have uniform borders', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/build_scope_test.dart b/packages/unit/test/widget/build_scope_test.dart
index 0df49a94b2..891f983012 100644
--- a/packages/unit/test/widget/build_scope_test.dart
+++ b/packages/unit/test/widget/build_scope_test.dart
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/animation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
 import 'test_widgets.dart';
 
 class ProbeWidget extends StatefulComponent {
diff --git a/packages/unit/test/widget/center_test.dart b/packages/unit/test/widget/center_test.dart
index f5a7d0fa90..303319650f 100644
--- a/packages/unit/test/widget/center_test.dart
+++ b/packages/unit/test/widget/center_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Can be placed in an infinte box', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/coordinates_test.dart b/packages/unit/test/widget/coordinates_test.dart
index a6d658bdf6..76fe790464 100644
--- a/packages/unit/test/widget/coordinates_test.dart
+++ b/packages/unit/test/widget/coordinates_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Comparing coordinates', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/custom_multi_child_layout_test.dart b/packages/unit/test/widget/custom_multi_child_layout_test.dart
index 3fc36f2e3d..96c83a8de4 100644
--- a/packages/unit/test/widget/custom_multi_child_layout_test.dart
+++ b/packages/unit/test/widget/custom_multi_child_layout_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class TestMultiChildLayoutDelegate extends MultiChildLayoutDelegate {
   BoxConstraints getSizeConstraints;
 
diff --git a/packages/unit/test/widget/custom_one_child_layout_test.dart b/packages/unit/test/widget/custom_one_child_layout_test.dart
index 521216bb11..33dd94c0c8 100644
--- a/packages/unit/test/widget/custom_one_child_layout_test.dart
+++ b/packages/unit/test/widget/custom_one_child_layout_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class TestOneChildLayoutDelegate extends OneChildLayoutDelegate {
   BoxConstraints constraintsFromGetSize;
   BoxConstraints constraintsFromGetConstraintsForChild;
diff --git a/packages/unit/test/widget/date_picker_test.dart b/packages/unit/test/widget/date_picker_test.dart
index e6459385b6..b2cae885d2 100644
--- a/packages/unit/test/widget/date_picker_test.dart
+++ b/packages/unit/test/widget/date_picker_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Can select a day', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/dismissable_test.dart b/packages/unit/test/widget/dismissable_test.dart
index a2f928b6ae..f0a6513cd3 100644
--- a/packages/unit/test/widget/dismissable_test.dart
+++ b/packages/unit/test/widget/dismissable_test.dart
@@ -2,13 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-import 'widget_tester.dart';
-
 const double itemExtent = 100.0;
 ScrollDirection scrollDirection = ScrollDirection.vertical;
 DismissDirection dismissDirection = DismissDirection.horizontal;
@@ -284,4 +282,3 @@ void main() {
     });
   });
 }
-
diff --git a/packages/unit/test/widget/draggable_test.dart b/packages/unit/test/widget/draggable_test.dart
index 96e0d9d050..62d5f46960 100644
--- a/packages/unit/test/widget/draggable_test.dart
+++ b/packages/unit/test/widget/draggable_test.dart
@@ -2,12 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-import 'widget_tester.dart';
-
 void main() {
   test('Drag and drop - control test', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/drawer_test.dart b/packages/unit/test/widget/drawer_test.dart
index 9e10faabeb..939277ff8c 100644
--- a/packages/unit/test/widget/drawer_test.dart
+++ b/packages/unit/test/widget/drawer_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
 
   test('Drawer control test', () {
diff --git a/packages/unit/test/widget/duplicate_key_test.dart b/packages/unit/test/widget/duplicate_key_test.dart
index dec4f9be1d..8fcc128d8b 100644
--- a/packages/unit/test/widget/duplicate_key_test.dart
+++ b/packages/unit/test/widget/duplicate_key_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class Item {
   GlobalKey key1 = new GlobalKey();
   GlobalKey key2 = new GlobalKey();
diff --git a/packages/unit/test/widget/flex_test.dart b/packages/unit/test/widget/flex_test.dart
index 3d0316ce9f..66760210d7 100644
--- a/packages/unit/test/widget/flex_test.dart
+++ b/packages/unit/test/widget/flex_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Can hit test flex children of stacks', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/focus_test.dart b/packages/unit/test/widget/focus_test.dart
index 0c51130eed..68deb6e68b 100644
--- a/packages/unit/test/widget/focus_test.dart
+++ b/packages/unit/test/widget/focus_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class TestFocusable extends StatelessComponent {
   TestFocusable(this.no, this.yes, GlobalKey key) : super(key: key);
   final String no;
diff --git a/packages/unit/test/widget/fractionally_sized_box_test.dart b/packages/unit/test/widget/fractionally_sized_box_test.dart
index 9147fd3c59..ad3055d3c0 100644
--- a/packages/unit/test/widget/fractionally_sized_box_test.dart
+++ b/packages/unit/test/widget/fractionally_sized_box_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('FractionallySizedBox', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/gesture_detector_test.dart b/packages/unit/test/widget/gesture_detector_test.dart
index d83f16a0b5..8e5dfcd46a 100644
--- a/packages/unit/test/widget/gesture_detector_test.dart
+++ b/packages/unit/test/widget/gesture_detector_test.dart
@@ -2,12 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-import 'widget_tester.dart';
-
 void main() {
   test('Uncontested scrolls start immediately', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/heroes_test.dart b/packages/unit/test/widget/heroes_test.dart
index 66d386b240..5d6ea2e368 100644
--- a/packages/unit/test/widget/heroes_test.dart
+++ b/packages/unit/test/widget/heroes_test.dart
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
 import 'test_matchers.dart';
-import 'widget_tester.dart';
 
 Key firstKey = new Key('first');
 Key secondKey = new Key('second');
diff --git a/packages/unit/test/widget/homogeneous_viewport_test.dart b/packages/unit/test/widget/homogeneous_viewport_test.dart
index 85dd1ac3f2..d9f3c1978e 100644
--- a/packages/unit/test/widget/homogeneous_viewport_test.dart
+++ b/packages/unit/test/widget/homogeneous_viewport_test.dart
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
 import 'test_widgets.dart';
 
 void main() {
diff --git a/packages/unit/test/widget/init_state_test.dart b/packages/unit/test/widget/init_state_test.dart
index f21fb8565d..23b9cb0f94 100644
--- a/packages/unit/test/widget/init_state_test.dart
+++ b/packages/unit/test/widget/init_state_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 List<String> ancestors = <String>[];
 
 class TestComponent extends StatefulComponent {
diff --git a/packages/unit/test/widget/input_test.dart b/packages/unit/test/widget/input_test.dart
index e1796a0c6e..58ae46ba25 100644
--- a/packages/unit/test/widget/input_test.dart
+++ b/packages/unit/test/widget/input_test.dart
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:mojo_services/keyboard/keyboard.mojom.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter/material.dart';
+import 'package:mojo_services/keyboard/keyboard.mojom.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
 import '../services/mock_services.dart';
 
 class MockKeyboard implements KeyboardService {
diff --git a/packages/unit/test/widget/listener_test.dart b/packages/unit/test/widget/listener_test.dart
index 65014fc606..bf0af80281 100644
--- a/packages/unit/test/widget/listener_test.dart
+++ b/packages/unit/test/widget/listener_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Events bubble up the tree', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/mixed_viewport_test.dart b/packages/unit/test/widget/mixed_viewport_test.dart
index 6bf63135f7..ccf276c0dc 100644
--- a/packages/unit/test/widget/mixed_viewport_test.dart
+++ b/packages/unit/test/widget/mixed_viewport_test.dart
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
 import 'test_widgets.dart';
 
 void main() {
diff --git a/packages/unit/test/widget/multichild_test.dart b/packages/unit/test/widget/multichild_test.dart
index bbd6be6e23..6e813766e0 100644
--- a/packages/unit/test/widget/multichild_test.dart
+++ b/packages/unit/test/widget/multichild_test.dart
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
 import 'test_widgets.dart';
-import 'widget_tester.dart';
 
 void checkTree(WidgetTester tester, List<BoxDecoration> expectedDecorations) {
   MultiChildRenderObjectElement element =
diff --git a/packages/unit/test/widget/navigator_test.dart b/packages/unit/test/widget/navigator_test.dart
index 0252798dc9..3b825c9d04 100644
--- a/packages/unit/test/widget/navigator_test.dart
+++ b/packages/unit/test/widget/navigator_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class FirstComponent extends StatelessComponent {
   Widget build(BuildContext context) {
     return new GestureDetector(
diff --git a/packages/unit/test/widget/page_transitions_test.dart b/packages/unit/test/widget/page_transitions_test.dart
index 99fee93563..8efc4a32bd 100644
--- a/packages/unit/test/widget/page_transitions_test.dart
+++ b/packages/unit/test/widget/page_transitions_test.dart
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
 import 'test_matchers.dart';
-import 'widget_tester.dart';
 
 class TestOverlayRoute extends OverlayRoute {
   List<WidgetBuilder> get builders => <WidgetBuilder>[ _build ];
diff --git a/packages/unit/test/widget/pageable_list_test.dart b/packages/unit/test/widget/pageable_list_test.dart
index ce3e6358bb..2864da8ffb 100644
--- a/packages/unit/test/widget/pageable_list_test.dart
+++ b/packages/unit/test/widget/pageable_list_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 const Size pageSize = const Size(800.0, 600.0);
 const List<int> pages = const <int>[0, 1, 2, 3, 4, 5];
 int currentPage = null;
diff --git a/packages/unit/test/widget/parent_data_test.dart b/packages/unit/test/widget/parent_data_test.dart
index 6307fd747a..2557b36d22 100644
--- a/packages/unit/test/widget/parent_data_test.dart
+++ b/packages/unit/test/widget/parent_data_test.dart
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
 import 'test_widgets.dart';
-import 'widget_tester.dart';
 
 class TestParentData {
   TestParentData({ this.top, this.right, this.bottom, this.left });
diff --git a/packages/unit/test/widget/positioned_test.dart b/packages/unit/test/widget/positioned_test.dart
index 8c12b36a14..120a02bd67 100644
--- a/packages/unit/test/widget/positioned_test.dart
+++ b/packages/unit/test/widget/positioned_test.dart
@@ -2,13 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/animation.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
 
   test('Can animate position data', () {
diff --git a/packages/unit/test/widget/progress_indicator_test.dart b/packages/unit/test/widget/progress_indicator_test.dart
index cbd5ac59ce..f19bad9a05 100644
--- a/packages/unit/test/widget/progress_indicator_test.dart
+++ b/packages/unit/test/widget/progress_indicator_test.dart
@@ -2,13 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('LinearProgressIndicator changes when its value changes', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/remember_scroll_position_test.dart b/packages/unit/test/widget/remember_scroll_position_test.dart
index 341adc2197..51e34c053b 100644
--- a/packages/unit/test/widget/remember_scroll_position_test.dart
+++ b/packages/unit/test/widget/remember_scroll_position_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/animation.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class ThePositiveNumbers extends ScrollableWidgetList {
   ThePositiveNumbers() : super(itemExtent: 100.0);
   ThePositiveNumbersState createState() => new ThePositiveNumbersState();
diff --git a/packages/unit/test/widget/render_object_widget_test.dart b/packages/unit/test/widget/render_object_widget_test.dart
index eaccd4be23..4d89371f14 100644
--- a/packages/unit/test/widget/render_object_widget_test.dart
+++ b/packages/unit/test/widget/render_object_widget_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 final BoxDecoration kBoxDecorationA = new BoxDecoration();
 final BoxDecoration kBoxDecorationB = new BoxDecoration();
 final BoxDecoration kBoxDecorationC = new BoxDecoration();
diff --git a/packages/unit/test/widget/reparent_state_test.dart b/packages/unit/test/widget/reparent_state_test.dart
index e82ae43432..964c3e7bc1 100644
--- a/packages/unit/test/widget/reparent_state_test.dart
+++ b/packages/unit/test/widget/reparent_state_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class StateMarker extends StatefulComponent {
   StateMarker({ Key key, this.child }) : super(key: key);
 
diff --git a/packages/unit/test/widget/scrollable_list_hit_testing_test.dart b/packages/unit/test/widget/scrollable_list_hit_testing_test.dart
index a0023d096c..4c08907ea6 100644
--- a/packages/unit/test/widget/scrollable_list_hit_testing_test.dart
+++ b/packages/unit/test/widget/scrollable_list_hit_testing_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 const List<int> items = const <int>[0, 1, 2, 3, 4, 5];
 List<int> tapped = <int>[];
 
diff --git a/packages/unit/test/widget/scrollable_list_horizontal_test.dart b/packages/unit/test/widget/scrollable_list_horizontal_test.dart
index a6821739be..520022ede9 100644
--- a/packages/unit/test/widget/scrollable_list_horizontal_test.dart
+++ b/packages/unit/test/widget/scrollable_list_horizontal_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 const List<int> items = const <int>[0, 1, 2, 3, 4, 5];
 
 Widget buildFrame() {
diff --git a/packages/unit/test/widget/scrollable_list_vertical_test.dart b/packages/unit/test/widget/scrollable_list_vertical_test.dart
index c258b076a5..bd0df9784a 100644
--- a/packages/unit/test/widget/scrollable_list_vertical_test.dart
+++ b/packages/unit/test/widget/scrollable_list_vertical_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 const List<int> items = const <int>[0, 1, 2, 3, 4, 5];
 
 Widget buildFrame() {
diff --git a/packages/unit/test/widget/scrollable_list_with_inherited_test.dart b/packages/unit/test/widget/scrollable_list_with_inherited_test.dart
index 4c08334874..f186fac8b9 100644
--- a/packages/unit/test/widget/scrollable_list_with_inherited_test.dart
+++ b/packages/unit/test/widget/scrollable_list_with_inherited_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 List<int> items = <int>[0, 1, 2, 3, 4, 5];
 
 Widget buildCard(BuildContext context, int index) {
diff --git a/packages/unit/test/widget/set_state_3_test.dart b/packages/unit/test/widget/set_state_3_test.dart
index fcf2372fdf..9b7bacf682 100644
--- a/packages/unit/test/widget/set_state_3_test.dart
+++ b/packages/unit/test/widget/set_state_3_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 ChangerState changer;
 
 class Changer extends StatefulComponent {
diff --git a/packages/unit/test/widget/set_state_test.dart b/packages/unit/test/widget/set_state_test.dart
index 848a656550..2c78e7e92e 100644
--- a/packages/unit/test/widget/set_state_test.dart
+++ b/packages/unit/test/widget/set_state_test.dart
@@ -2,12 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import '../engine/mock_events.dart';
-import 'widget_tester.dart';
-
 class Inside extends StatefulComponent {
   InsideState createState() => new InsideState();
 }
diff --git a/packages/unit/test/widget/shader_mask_test.dart b/packages/unit/test/widget/shader_mask_test.dart
index 784816ab8b..51df395b24 100644
--- a/packages/unit/test/widget/shader_mask_test.dart
+++ b/packages/unit/test/widget/shader_mask_test.dart
@@ -4,12 +4,11 @@
 
 import 'dart:ui' as ui;
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/painting.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 ui.Shader createShader(Rect bounds) {
   return new LinearGradient(
       begin: Point.origin,
diff --git a/packages/unit/test/widget/size_observer_test.dart b/packages/unit/test/widget/size_observer_test.dart
index 300c903d85..cc8dd5247b 100644
--- a/packages/unit/test/widget/size_observer_test.dart
+++ b/packages/unit/test/widget/size_observer_test.dart
@@ -2,13 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('SizeObserver notices zero size', () {
     testWidgets((WidgetTester tester) {
diff --git a/packages/unit/test/widget/snack_bar_test.dart b/packages/unit/test/widget/snack_bar_test.dart
index 89a9b707d6..f3a11bd451 100644
--- a/packages/unit/test/widget/snack_bar_test.dart
+++ b/packages/unit/test/widget/snack_bar_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class Builder extends StatelessComponent {
   Builder({ this.builder });
   final WidgetBuilder builder;
@@ -55,7 +54,7 @@ void main() {
       expect(tester.findText(helloSnackBar), isNotNull);
       tester.pump(new Duration(milliseconds: 750)); // 1.50s
       expect(tester.findText(helloSnackBar), isNotNull);
-      tester.pump(new Duration(milliseconds: 750)); // 2.25s 
+      tester.pump(new Duration(milliseconds: 750)); // 2.25s
       expect(tester.findText(helloSnackBar), isNotNull);
       tester.pump(new Duration(milliseconds: 750)); // 3.00s // timer triggers to dismiss snackbar, reverse animation is scheduled
       tester.pump(); // begin animation
@@ -114,7 +113,7 @@ void main() {
       tester.pump(new Duration(milliseconds: 750)); // 1.50s
       expect(tester.findText('bar1'), isNotNull);
       expect(tester.findText('bar2'), isNull);
-      tester.pump(new Duration(milliseconds: 750)); // 2.25s 
+      tester.pump(new Duration(milliseconds: 750)); // 2.25s
       expect(tester.findText('bar1'), isNotNull);
       expect(tester.findText('bar2'), isNull);
       tester.pump(new Duration(milliseconds: 750)); // 3.00s // timer triggers to dismiss snackbar, reverse animation is scheduled
@@ -133,7 +132,7 @@ void main() {
       tester.pump(new Duration(milliseconds: 750)); // 5.25s
       expect(tester.findText('bar1'), isNull);
       expect(tester.findText('bar2'), isNotNull);
-      tester.pump(new Duration(milliseconds: 750)); // 6.00s 
+      tester.pump(new Duration(milliseconds: 750)); // 6.00s
       expect(tester.findText('bar1'), isNull);
       expect(tester.findText('bar2'), isNotNull);
       tester.pump(new Duration(milliseconds: 750)); // 6.75s // timer triggers to dismiss snackbar, reverse animation is scheduled
@@ -200,10 +199,10 @@ void main() {
       tester.pump(new Duration(milliseconds: 750)); // 1.50s
       expect(tester.findText('bar1'), isNotNull);
       expect(tester.findText('bar2'), isNull);
-      tester.pump(new Duration(milliseconds: 750)); // 2.25s 
+      tester.pump(new Duration(milliseconds: 750)); // 2.25s
       expect(tester.findText('bar1'), isNotNull);
       expect(tester.findText('bar2'), isNull);
-      tester.pump(new Duration(milliseconds: 10000)); // 12.25s 
+      tester.pump(new Duration(milliseconds: 10000)); // 12.25s
       expect(tester.findText('bar1'), isNotNull);
       expect(tester.findText('bar2'), isNull);
 
@@ -225,7 +224,7 @@ void main() {
       tester.pump(new Duration(milliseconds: 750)); // 15.25s
       expect(tester.findText('bar1'), isNull);
       expect(tester.findText('bar2'), isNotNull);
-      tester.pump(new Duration(milliseconds: 750)); // 16.00s 
+      tester.pump(new Duration(milliseconds: 750)); // 16.00s
       expect(tester.findText('bar1'), isNull);
       expect(tester.findText('bar2'), isNotNull);
       tester.pump(new Duration(milliseconds: 750)); // 16.75s // timer triggers to dismiss snackbar, reverse animation is scheduled
diff --git a/packages/unit/test/widget/snap_scrolling_test.dart b/packages/unit/test/widget/snap_scrolling_test.dart
index d736ed9a03..c1d93f342e 100644
--- a/packages/unit/test/widget/snap_scrolling_test.dart
+++ b/packages/unit/test/widget/snap_scrolling_test.dart
@@ -4,11 +4,10 @@
 
 import 'dart:async';
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 const double itemExtent = 200.0;
 ScrollDirection scrollDirection = ScrollDirection.vertical;
 GlobalKey scrollableListKey;
diff --git a/packages/unit/test/widget/stack_test.dart b/packages/unit/test/widget/stack_test.dart
index 4bb7319330..013dde6892 100644
--- a/packages/unit/test/widget/stack_test.dart
+++ b/packages/unit/test/widget/stack_test.dart
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
 import '../rendering/rendering_tester.dart';
 
 void main() {
diff --git a/packages/unit/test/widget/stateful_component_test.dart b/packages/unit/test/widget/stateful_component_test.dart
index 45a116c587..c85b290cb7 100644
--- a/packages/unit/test/widget/stateful_component_test.dart
+++ b/packages/unit/test/widget/stateful_component_test.dart
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
 import 'test_widgets.dart';
 
 void main() {
diff --git a/packages/unit/test/widget/stateful_components_test.dart b/packages/unit/test/widget/stateful_components_test.dart
index 8f67396cd0..1e4716cc37 100644
--- a/packages/unit/test/widget/stateful_components_test.dart
+++ b/packages/unit/test/widget/stateful_components_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class InnerComponent extends StatefulComponent {
   InnerComponent({ Key key }) : super(key: key);
   InnerComponentState createState() => new InnerComponentState();
diff --git a/packages/unit/test/widget/syncing_test.dart b/packages/unit/test/widget/syncing_test.dart
index a2b2f28a05..6d480b8dba 100644
--- a/packages/unit/test/widget/syncing_test.dart
+++ b/packages/unit/test/widget/syncing_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 class TestWidget extends StatefulComponent {
   TestWidget({ this.child, this.persistentState, this.syncedState });
 
diff --git a/packages/unit/test/widget/tabs_test.dart b/packages/unit/test/widget/tabs_test.dart
index e4e64e93fd..2c2c2500ba 100644
--- a/packages/unit/test/widget/tabs_test.dart
+++ b/packages/unit/test/widget/tabs_test.dart
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 int selectedIndex = 2;
 
 Widget buildFrame({ List<String> tabs, bool isScrollable: false }) {
diff --git a/packages/unit/test/widget/test_widgets.dart b/packages/unit/test/widget/test_widgets.dart
index 381368947e..9eaaaf4d78 100644
--- a/packages/unit/test/widget/test_widgets.dart
+++ b/packages/unit/test/widget/test_widgets.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 final BoxDecoration kBoxDecorationA = new BoxDecoration(
   backgroundColor: const Color(0xFFFF0000)
 );
diff --git a/packages/unit/test/widget/transform_test.dart b/packages/unit/test/widget/transform_test.dart
index 95e0295eab..e001e9cf48 100644
--- a/packages/unit/test/widget/transform_test.dart
+++ b/packages/unit/test/widget/transform_test.dart
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/widgets.dart';
 import 'package:test/test.dart';
 
-import 'widget_tester.dart';
-
 void main() {
   test('Transform origin', () {
     testWidgets((WidgetTester tester) {