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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 'dart:ui' as ui;
import 'package:flutter/painting.dart';
import 'package:flutter_test/flutter_test.dart';
import '../rendering/rendering_tester.dart';
import 'mocks_for_image_cache.dart';
void main() {
TestRenderingFlutterBinding.ensureInitialized();
tearDown(() {
imageCache
..clear()
..maximumSize = 1000
..maximumSizeBytes = 10485760;
});
test('Image cache resizing based on count', () async {
imageCache.maximumSize = 2;
final TestImageInfo a = await extractOneFrame(TestImageProvider(1, 1, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
final TestImageInfo b = await extractOneFrame(TestImageProvider(2, 2, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
final TestImageInfo c = await extractOneFrame(TestImageProvider(3, 3, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
final TestImageInfo d = await extractOneFrame(TestImageProvider(1, 4, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(a.value, equals(1));
expect(b.value, equals(2));
expect(c.value, equals(3));
expect(d.value, equals(4));
imageCache.maximumSize = 0;
final TestImageInfo e = await extractOneFrame(TestImageProvider(1, 5, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(e.value, equals(5));
final TestImageInfo f = await extractOneFrame(TestImageProvider(1, 6, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(f.value, equals(6));
imageCache.maximumSize = 3;
final TestImageInfo g = await extractOneFrame(TestImageProvider(1, 7, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(g.value, equals(7));
final TestImageInfo h = await extractOneFrame(TestImageProvider(1, 8, image: await createTestImage()).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(h.value, equals(7));
});
test('Image cache resizing based on size', () async {
final ui.Image testImage = await createTestImage(width: 8, height: 8); // 256 B.
imageCache.maximumSizeBytes = 256 * 2;
final TestImageInfo a = await extractOneFrame(TestImageProvider(1, 1, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
final TestImageInfo b = await extractOneFrame(TestImageProvider(2, 2, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
final TestImageInfo c = await extractOneFrame(TestImageProvider(3, 3, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
final TestImageInfo d = await extractOneFrame(TestImageProvider(1, 4, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(a.value, equals(1));
expect(b.value, equals(2));
expect(c.value, equals(3));
expect(d.value, equals(4));
imageCache.maximumSizeBytes = 0;
final TestImageInfo e = await extractOneFrame(TestImageProvider(1, 5, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(e.value, equals(5));
final TestImageInfo f = await extractOneFrame(TestImageProvider(1, 6, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(f.value, equals(6));
imageCache.maximumSizeBytes = 256 * 3;
final TestImageInfo g = await extractOneFrame(TestImageProvider(1, 7, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(g.value, equals(7));
final TestImageInfo h = await extractOneFrame(TestImageProvider(1, 8, image: testImage).resolve(ImageConfiguration.empty)) as TestImageInfo;
expect(h.value, equals(7));
});
}