| // 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)); |
| }); |
| } |