cassandra-trunk/test/unit/org/apache/cassandra/utils/AssertionUtilsTest.java
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.cassandra.utils;

import org.junit.Test;

import org.assertj.core.api.Assertions;

public class AssertionUtilsTest
{
    @Test
    public void isInstanceof()
    {
        Assertions.assertThat(new C())
                  .is(AssertionUtils.isInstanceof(A.class));

        Assertions.assertThat(new D())
                  .is(AssertionUtils.isInstanceof(A.class))
                  .is(AssertionUtils.isInstanceof(B.class));

        Assertions.assertThat(null instanceof A)
                  .isEqualTo(AssertionUtils.isInstanceof(A.class).matches(null));
    }

    interface A {}
    interface B extends A {}
    static class C implements A {}
    static class D implements B {}
}