// 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)); }); }