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// Copyright 2013 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.
// @dart = 2.6
import 'dart:ui';
import 'package:test/test.dart';
void main() {
test('Gradient.radial with no focal point', () {
expect(
Gradient.radial(
Offset.zero,
null,
<Color>[const Color(0xFFFFFFFF), const Color(0xFFFFFFFF)],
<double>[0.0, 1.0],
TileMode.mirror),
isNotNull,
);
});
// this is just a radial gradient, focal point is discarded.
test('radial center and focal == Offset.zero and focalRadius == 0.0 is ok',
() {
expect(
() => Gradient.radial(
Offset.zero,
0.0,
<Color>[const Color(0xFFFFFFFF), const Color(0xFFFFFFFF)],
<double>[0.0, 1.0],
TileMode.mirror,
null,
Offset.zero,
0.0,
),
isNotNull);
});
test('radial center != focal and focalRadius == 0.0 is ok', () {
expect(
() => Gradient.radial(
Offset.zero,
0.0,
<Color>[const Color(0xFFFFFFFF), const Color(0xFFFFFFFF)],
<double>[0.0, 1.0],
TileMode.mirror,
null,
const Offset(2.0, 2.0),
0.0,
),
isNotNull);
});
// this would result in div/0 on skia side.
test('radial center and focal == Offset.zero and focalRadius != 0.0 assert',
() {
assert(() {
expect(
() => Gradient.radial(
Offset.zero,
0.0,
<Color>[const Color(0xFFFFFFFF), const Color(0xFFFFFFFF)],
<double>[0.0, 1.0],
TileMode.mirror,
null,
Offset.zero,
1.0,
),
throwsA(const TypeMatcher<AssertionError>()),
);
return true;
}());
});
}