Mike Fairhurst
0a59b2ff90
Change-Id: I758d66d5112de631283adc791c0e33b3b98edfc1 Reviewed-on: https://dart-review.googlesource.com/60707 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Mike Fairhurst <mfairhurst@google.com>
84 lines
2.5 KiB
Dart
84 lines
2.5 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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//
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// Dart test program for testing file I/O.
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import 'dart:async';
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import 'dart:io';
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import "package:async_helper/async_helper.dart";
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import "package:expect/expect.dart";
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Future withTempDir(String prefix, Future<void> test(Directory dir)) async {
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var tempDir = Directory.systemTemp.createTempSync(prefix);
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try {
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await test(tempDir);
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} finally {
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tempDir.deleteSync(recursive: true);
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}
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}
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void withTempDirSync(String prefix, void test(Directory dir)) {
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var tempDir = Directory.systemTemp.createTempSync(prefix);
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try {
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test(tempDir);
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} finally {
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tempDir.deleteSync(recursive: true);
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}
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}
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Future expectThrowsAsync(Future future, String message) {
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return future.then((r) => Expect.fail(message)).catchError((e) {});
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}
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Future write(Directory dir) async {
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var f = new File("${dir.path}${Platform.pathSeparator}write");
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var raf = await f.open(mode: FileMode.writeOnly);
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await raf.writeString('Hello');
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await raf.setPosition(0);
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await raf.writeString('Hello');
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await raf.setPosition(0);
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await expectThrowsAsync(
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raf.readByte(), 'Read from write only file succeeded');
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await raf.close();
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raf = await f.open(mode: FileMode.writeOnlyAppend);
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await raf.writeString('Hello');
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await expectThrowsAsync(
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raf.readByte(), 'Read from write only file succeeded');
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await raf.setPosition(0);
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await raf.writeString('Hello');
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await raf.close();
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Expect.equals(f.lengthSync(), 10);
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}
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void writeSync(Directory dir) {
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var f = new File("${dir.path}${Platform.pathSeparator}write_sync");
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var raf = f.openSync(mode: FileMode.writeOnly);
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raf.writeStringSync('Hello');
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raf.setPositionSync(0);
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raf.writeStringSync('Hello');
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raf.setPositionSync(0);
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Expect.throws(() => raf.readByteSync());
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raf.closeSync();
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}
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Future openWrite(Directory dir) async {
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var f = new File("${dir.path}${Platform.pathSeparator}open_write");
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var sink = f.openWrite(mode: FileMode.writeOnly);
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sink.write('Hello');
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await sink.close();
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sink = await f.openWrite(mode: FileMode.writeOnlyAppend);
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sink.write('Hello');
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await sink.close();
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Expect.equals(f.lengthSync(), 10);
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}
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main() async {
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asyncStart();
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await withTempDir('file_write_only_test_1_', write);
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withTempDirSync('file_write_only_test_2_', writeSync);
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await withTempDir('file_write_only_test_3_', openWrite);
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asyncEnd();
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}
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