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// 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 'package:flutter_test/flutter_test.dart';
import 'package:flutter/widgets.dart';
void main() {
testWidgets('Placeholder intrinsics', (WidgetTester tester) async {
await tester.pumpWidget(const Placeholder());
expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMinIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMaxIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMinIntrinsicHeight(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMaxIntrinsicHeight(double.infinity), 0.0);
});
testWidgets('ConstrainedBox intrinsics - minHeight', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints(
minHeight: 20.0,
),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 20.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 20.0);
});
testWidgets('ConstrainedBox intrinsics - minWidth', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints(
minWidth: 20.0,
),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 20.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 20.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0);
});
testWidgets('ConstrainedBox intrinsics - maxHeight', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints(
maxHeight: 20.0,
),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0);
});
testWidgets('ConstrainedBox intrinsics - maxWidth', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints(
maxWidth: 20.0,
),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0);
});
testWidgets('ConstrainedBox intrinsics - tight', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints.tightFor(width: 10.0, height: 30.0),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 10.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 10.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 30.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 30.0);
});
testWidgets('ConstrainedBox intrinsics - minHeight - with infinite width', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints(
minWidth: double.infinity,
minHeight: 20.0,
),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 20.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 20.0);
});
testWidgets('ConstrainedBox intrinsics - minWidth - with infinite height', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints(
minWidth: 20.0,
minHeight: double.infinity,
),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 20.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 20.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0);
});
testWidgets('ConstrainedBox intrinsics - infinite', (WidgetTester tester) async {
await tester.pumpWidget(
ConstrainedBox(
constraints: const BoxConstraints.tightFor(width: double.infinity, height: double.infinity),
child: const Placeholder(),
),
);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0);
expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0);
});
}