flutter/packages/unit/test/widget/custom_one_child_layout_test.dart
Adam Barth 727ce65ffc Add package:flutter_test
This package contains WidgetTester, which is very useful when writing tests for
widgets.
2015-11-23 14:09:12 -08:00

63 lines
2.2 KiB
Dart

// 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_test/flutter_test.dart';
import 'package:flutter/widgets.dart';
import 'package:test/test.dart';
class TestOneChildLayoutDelegate extends OneChildLayoutDelegate {
BoxConstraints constraintsFromGetSize;
BoxConstraints constraintsFromGetConstraintsForChild;
Size sizeFromGetPositionForChild;
Size childSizeFromGetPositionForChild;
Size getSize(BoxConstraints constraints) {
constraintsFromGetSize = constraints;
return new Size(200.0, 300.0);
}
BoxConstraints getConstraintsForChild(BoxConstraints constraints) {
constraintsFromGetConstraintsForChild = constraints;
return new BoxConstraints(
minWidth: 100.0,
maxWidth: 150.0,
minHeight: 200.0,
maxHeight: 400.0
);
}
Point getPositionForChild(Size size, Size childSize) {
sizeFromGetPositionForChild = size;
childSizeFromGetPositionForChild = childSize;
return Point.origin;
}
}
void main() {
test('Control test for CustomOneChildLayout', () {
testWidgets((WidgetTester tester) {
TestOneChildLayoutDelegate delegate = new TestOneChildLayoutDelegate();
tester.pumpWidget(new Center(
child: new CustomOneChildLayout(delegate: delegate, child: new Container())
));
expect(delegate.constraintsFromGetSize.minWidth, 0.0);
expect(delegate.constraintsFromGetSize.maxWidth, 800.0);
expect(delegate.constraintsFromGetSize.minHeight, 0.0);
expect(delegate.constraintsFromGetSize.maxHeight, 600.0);
expect(delegate.constraintsFromGetConstraintsForChild.minWidth, 0.0);
expect(delegate.constraintsFromGetConstraintsForChild.maxWidth, 800.0);
expect(delegate.constraintsFromGetConstraintsForChild.minHeight, 0.0);
expect(delegate.constraintsFromGetConstraintsForChild.maxHeight, 600.0);
expect(delegate.sizeFromGetPositionForChild.width, 200.0);
expect(delegate.sizeFromGetPositionForChild.height, 300.0);
expect(delegate.childSizeFromGetPositionForChild.width, 150.0);
expect(delegate.childSizeFromGetPositionForChild.height, 400.0);
});
});
}