tests/language/mixin/mixin_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.

// TODO(51557): Decide if the mixins being applied in this test should be
// "mixin", "mixin class" or the test should be left at 2.19.
// @dart=2.19

import "package:expect/expect.dart";

class M1 {
  foo() => 42;
}

class M2 = Object with M1;

class S {}

class C = S with M2;

main() {
  var c = new C();
  Expect.isTrue(c is S);
  Expect.isTrue(c is M1);
  Expect.isTrue(c is M2);
  Expect.isTrue(c is C);
  Expect.equals(42, c.foo());
}