// 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:io' show Platform; import 'package:file/file.dart'; import 'package:file/local.dart'; import 'package:file/memory.dart'; /// The file system implementation used by this library. /// /// See [useMemoryFileSystemForTesting] and [restoreFileSystem]. FileSystem fs = const LocalFileSystem(); /// Overrides the file system so it can be tested without hitting the hard /// drive. void useMemoryFileSystemForTesting() { fs = MemoryFileSystem(); } /// Restores the file system to the default local file system implementation. void restoreFileSystem() { fs = const LocalFileSystem(); } /// Flutter Driver test output directory. /// /// Tests should write any output files to this directory. Defaults to the path /// set in the FLUTTER_TEST_OUTPUTS_DIR environment variable, or `build` if /// unset. String get testOutputsDirectory => Platform.environment['FLUTTER_TEST_OUTPUTS_DIR'] ?? 'build';