LibTest/core/AssertionError/toString_A01_t01.dart

// Copyright (c) 2016, 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.

/// @assertion Undocumented
/// @description Checks that this method causes no error and the result is not
/// null and is indeed a String when the AssertionError is raised using assert
/// statement.
/// @author rodionov

import "../../../Utils/expect.dart";
 
main() {
  if (assertStatementsEnabled) {
    try {
      assert(1 == 2);
      Expect.fail("AssertionError expected");
    } on AssertionError catch (e) {
      Expect.isTrue(e.toString().isNotEmpty);
      Expect.isTrue(e.toString() is String);
      Expect.runtimeIsType<String>(e.toString());
    }
  }
}