Add flutter_web samples (#75)

web/charts/common/test/chart/cartesian/cartesian_chart_test.dart

@@ -0,0 +1,105 @@
+// Copyright 2018 the Charts project authors. Please see the AUTHORS file
+// for details.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import 'package:charts_common/src/chart/cartesian/cartesian_chart.dart';
+import 'package:charts_common/src/chart/cartesian/axis/spec/date_time_axis_spec.dart';
+import 'package:charts_common/src/chart/cartesian/axis/spec/ordinal_axis_spec.dart';
+import 'package:charts_common/src/chart/cartesian/axis/spec/numeric_axis_spec.dart';
+import 'package:charts_common/src/chart/common/chart_context.dart';
+import 'package:charts_common/src/chart/time_series/time_series_chart.dart';
+import 'package:charts_common/src/common/graphics_factory.dart';
+
+import 'package:mockito/mockito.dart';
+import 'package:test/test.dart';
+
+class MockContext extends Mock implements ChartContext {}
+
+class MockGraphicsFactory extends Mock implements GraphicsFactory {}
+
+class FakeNumericChart extends NumericCartesianChart {
+  FakeNumericChart() {
+    context = new MockContext();
+    graphicsFactory = new MockGraphicsFactory();
+  }
+
+  @override
+  void initDomainAxis() {
+    // Purposely bypass the renderer code.
+  }
+}
+
+class FakeOrdinalChart extends OrdinalCartesianChart {
+  FakeOrdinalChart() {
+    context = new MockContext();
+    graphicsFactory = new MockGraphicsFactory();
+  }
+
+  @override
+  void initDomainAxis() {
+    // Purposely bypass the renderer code.
+  }
+}
+
+class FakeTimeSeries extends TimeSeriesChart {
+  FakeTimeSeries() {
+    context = new MockContext();
+    graphicsFactory = new MockGraphicsFactory();
+  }
+
+  @override
+  void initDomainAxis() {
+    // Purposely bypass the renderer code.
+  }
+}
+
+void main() {
+  group('Axis reset with new axis spec', () {
+    test('for ordinal chart', () {
+      final chart = new FakeOrdinalChart();
+      chart.configurationChanged();
+      final domainAxis = chart.domainAxis;
+      expect(domainAxis, isNotNull);
+
+      chart.domainAxisSpec = new OrdinalAxisSpec();
+      chart.configurationChanged();
+
+      expect(domainAxis, isNot(chart.domainAxis));
+    });
+
+    test('for numeric chart', () {
+      final chart = new FakeNumericChart();
+      chart.configurationChanged();
+      final domainAxis = chart.domainAxis;
+      expect(domainAxis, isNotNull);
+
+      chart.domainAxisSpec = new NumericAxisSpec();
+      chart.configurationChanged();
+
+      expect(domainAxis, isNot(chart.domainAxis));
+    });
+
+    test('for time series chart', () {
+      final chart = new FakeTimeSeries();
+      chart.configurationChanged();
+      final domainAxis = chart.domainAxis;
+      expect(domainAxis, isNotNull);
+
+      chart.domainAxisSpec = new DateTimeAxisSpec();
+      chart.configurationChanged();
+
+      expect(domainAxis, isNot(chart.domainAxis));
+    });
+  });
+}