tests/corelib/string_operations_with_null_test.dart

// Copyright (c) 2013, 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.

import "package:expect/expect.dart";

@pragma('dart2js:noInline')
@pragma('dart2js:assumeDynamic')
returnStringOrNull() {
  return new DateTime.now().millisecondsSinceEpoch == 0 ? 'foo' : null;
}

main() {
  Expect.throws(
    () => 'foo' + returnStringOrNull(),
    (e) => e is ArgumentError || e is TypeError,
  );
  Expect.throws(
    () => 'foo'.split(returnStringOrNull()),
    (e) => e is ArgumentError || e is NoSuchMethodError || e is TypeError,
  );
}