blob: e49d28d5b5e1e310774ccb3191f9a969d8c7afad [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<int> length()
/// Gets the length of the file. Returns a Future<int> that completes with the
/// length in bytes.
///
/// @description Checks that method length returns Future<int> that completes
/// with the length in bytes.
/// @author ngl@unipro.ru
import "dart:async";
import "dart:io";
import "../../../Utils/expect.dart";
import "../file_utils.dart";
void check(int fLen) {
File file = getTempFileSync();
asyncStart();
Future<RandomAccessFile> raFile = file.open(mode: FileMode.write);
raFile.then((RandomAccessFile rf) {
Expect.isNotNull(rf);
for (int i = 0; i < fLen; i++) {
rf.writeByteSync((i + 1) & 0xff);
};
rf.length().then((int len) {
Expect.equals(fLen, len);
asyncEnd();
}).whenComplete(() {
rf.closeSync();
file.deleteSync();
});
});
}
main() {
for (int i = 0; i < 10; i++) {
check(i);
}
}