| // Copyright 2019 The Chromium 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:typed_data'; |
| |
| import 'package:flutter_tools/src/base/file_system.dart'; |
| import 'package:flutter_tools/src/build_system/build_system.dart'; |
| import 'package:flutter_tools/src/build_system/file_hash_store.dart'; |
| import 'package:mockito/mockito.dart'; |
| |
| import '../../src/common.dart'; |
| import '../../src/context.dart'; |
| import '../../src/testbed.dart'; |
| |
| void main() { |
| Testbed testbed; |
| Environment environment; |
| |
| setUp(() { |
| testbed = Testbed(setup: () { |
| fs.directory('build').createSync(); |
| environment = Environment( |
| outputDir: fs.currentDirectory, |
| projectDir: fs.currentDirectory, |
| ); |
| environment.buildDir.createSync(recursive: true); |
| }); |
| }); |
| |
| test('Initializes file cache', () => testbed.run(() { |
| final FileHashStore fileCache = FileHashStore(environment, fs); |
| fileCache.initialize(); |
| fileCache.persist(); |
| |
| expect(fs.file(fs.path.join(environment.buildDir.path, '.filecache')).existsSync(), true); |
| |
| final Uint8List buffer = fs.file(fs.path.join(environment.buildDir.path, '.filecache')) |
| .readAsBytesSync(); |
| final FileStorage fileStorage = FileStorage.fromBuffer(buffer); |
| |
| expect(fileStorage.files, isEmpty); |
| expect(fileStorage.version, 2); |
| })); |
| |
| test('saves and restores to file cache', () => testbed.run(() async { |
| final File file = fs.file('foo.dart') |
| ..createSync() |
| ..writeAsStringSync('hello'); |
| final FileHashStore fileCache = FileHashStore(environment, fs); |
| fileCache.initialize(); |
| await fileCache.hashFiles(<File>[file]); |
| fileCache.persist(); |
| final String currentHash = fileCache.currentHashes[file.path]; |
| final Uint8List buffer = fs.file(fs.path.join(environment.buildDir.path, '.filecache')) |
| .readAsBytesSync(); |
| FileStorage fileStorage = FileStorage.fromBuffer(buffer); |
| |
| expect(fileStorage.files.single.hash, currentHash); |
| expect(fileStorage.files.single.path, file.path); |
| |
| |
| final FileHashStore newFileCache = FileHashStore(environment, fs); |
| newFileCache.initialize(); |
| expect(newFileCache.currentHashes, isEmpty); |
| expect(newFileCache.previousHashes['foo.dart'], currentHash); |
| newFileCache.persist(); |
| |
| // Still persisted correctly. |
| fileStorage = FileStorage.fromBuffer(buffer); |
| |
| expect(fileStorage.files.single.hash, currentHash); |
| expect(fileStorage.files.single.path, file.path); |
| })); |
| |
| test('handles persisting with a missing build directory', () => testbed.run(() async { |
| final File file = fs.file('foo.dart') |
| ..createSync() |
| ..writeAsStringSync('hello'); |
| final FileHashStore fileCache = FileHashStore(environment, fs); |
| fileCache.initialize(); |
| environment.buildDir.deleteSync(recursive: true); |
| |
| await fileCache.hashFiles(<File>[file]); |
| // Does not throw. |
| fileCache.persist(); |
| })); |
| |
| test('handles hashing missing files', () => testbed.run(() async { |
| final FileHashStore fileCache = FileHashStore(environment, fs); |
| fileCache.initialize(); |
| |
| final List<File> results = await fileCache.hashFiles(<File>[fs.file('hello.dart')]); |
| |
| expect(results, hasLength(1)); |
| expect(results.single.path, 'hello.dart'); |
| expect(fileCache.currentHashes, isNot(contains(fs.path.absolute('hello.dart')))); |
| })); |
| |
| test('handles failure to persist file cache', () => testbed.run(() async { |
| final FakeForwardingFileSystem fakeForwardingFileSystem = FakeForwardingFileSystem(fs); |
| final FileHashStore fileCache = FileHashStore(environment, fakeForwardingFileSystem); |
| final String cacheFile = environment.buildDir.childFile('.filecache').path; |
| final MockFile mockFile = MockFile(); |
| when(mockFile.writeAsBytesSync(any)).thenThrow(const FileSystemException('Out of space!')); |
| when(mockFile.existsSync()).thenReturn(true); |
| |
| fileCache.initialize(); |
| fakeForwardingFileSystem.files[cacheFile] = mockFile; |
| fileCache.persist(); |
| |
| expect(testLogger.errorText, contains('Out of space!')); |
| })); |
| |
| test('handles failure to restore file cache', () => testbed.run(() async { |
| final FakeForwardingFileSystem fakeForwardingFileSystem = FakeForwardingFileSystem(fs); |
| final FileHashStore fileCache = FileHashStore(environment, fakeForwardingFileSystem); |
| final String cacheFile = environment.buildDir.childFile('.filecache').path; |
| final MockFile mockFile = MockFile(); |
| when(mockFile.readAsBytesSync()).thenThrow(const FileSystemException('Out of space!')); |
| when(mockFile.existsSync()).thenReturn(true); |
| |
| fakeForwardingFileSystem.files[cacheFile] = mockFile; |
| fileCache.initialize(); |
| |
| expect(testLogger.errorText, contains('Out of space!')); |
| })); |
| } |
| |
| class FakeForwardingFileSystem extends ForwardingFileSystem { |
| FakeForwardingFileSystem(FileSystem fileSystem) : super(fileSystem); |
| |
| final Map<String, File> files = <String, File>{}; |
| |
| @override |
| File file(dynamic path) => files[path] ?? super.file(path); |
| } |
| class MockFile extends Mock implements File {} |