/*-
 * -\-\-
 * Spotify Styx Common
 * --
 * Copyright (C) 2018 Spotify AB
 * --
 * Licensed 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 com.spotify.styx.util;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;

import java.io.IOException;
import org.junit.Test;

public class ExceptionUtilTest {

  @Test
  public void shouldFindTheCause() {
    assertNotNull(
        ExceptionUtil.findCause(new RuntimeException(new RuntimeException(new IOException())),
            IOException.class));
  }

  @Test
  public void shouldNotFindTheCause() {
    assertNull(
        ExceptionUtil.findCause(new RuntimeException(new IOException()),
            UnsupportedOperationException.class));
  }
}
