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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.io;
19  
20  import static org.junit.jupiter.api.Assertions.assertEquals;
21  import static org.junit.jupiter.api.Assertions.assertSame;
22  
23  import java.io.IOException;
24  
25  import org.junit.jupiter.api.Test;
26  
27  /**
28   * Tests {@link IOExceptionWithCause}.
29   */
30  public class IOExceptionWithCauseTest {
31  
32      /**
33       * Tests the {@link IOExceptionWithCause#IOExceptionWithCause(String,Throwable)} constructor.
34       */
35      @Test
36      public void testIOExceptionStringThrowable() {
37          final Throwable cause = new IllegalArgumentException("cause");
38          final IOException exception = new IOException("message", cause);
39          this.validate(exception, cause, "message");
40      }
41  
42      /**
43       * Tests the {@link IOExceptionWithCause#IOExceptionWithCause(Throwable)} constructor.
44       */
45  
46      @Test
47      public void testIOExceptionThrowable() {
48          final Throwable cause = new IllegalArgumentException("cause");
49          final IOException exception = new IOException(cause);
50          this.validate(exception, cause, "java.lang.IllegalArgumentException: cause");
51      }
52  
53      void validate(final Throwable throwable, final Throwable expectedCause, final String expectedMessage) {
54          assertEquals(expectedMessage, throwable.getMessage());
55          assertEquals(expectedCause, throwable.getCause());
56          assertSame(expectedCause, throwable.getCause());
57      }
58  }