blob: 3cdcbdb9998433008ff9cc5bc491ee779fecd2f3 [file] [log] [blame]
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.9
/// @assertion
/// Future<RandomAccessFile> writeString(
/// String string, {
/// Encoding encoding: utf8
/// })
/// . . .
/// Returns a Future<RandomAccessFile> that completes with this RandomAccessFile
/// when the write completes.
///
/// @description Checks that method writeString returns a
/// Future<RandomAccessFile> that completes with this RandomAccessFile when the
/// write completes.
/// @author ngl@unipro.ru
import "dart:async";
import "dart:io";
import "../../../Utils/expect.dart";
import "../file_utils.dart";
check(String s) {
File file = getTempFileSync();
asyncStart();
Future<RandomAccessFile> raFile = file.open(mode: FileMode.write);
raFile.then((RandomAccessFile rf) {
var f = rf.writeString(s);
Expect.isTrue(f is Future<RandomAccessFile>);
f.then((RandomAccessFile file) {
Expect.isTrue(file is RandomAccessFile);
Expect.equals(rf, file);
asyncEnd();
}).whenComplete(() {
rf.closeSync();
file.deleteSync();
});
});
}
main() {
check("");
check("abc");
check("алфавит");
}