content: /*
   * 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.activemq.artemis.utils;
  
  import java.io.ByteArrayOutputStream;
  import java.io.PrintStream;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  
  /**
   * Test case that hijacks sys-out and sys-err.
   * <p>
   * It is meant to avoid cluttering either during test execution when the tested code (expectedly) writes to these.
   */
  public abstract class SilentTestCase {
  
     private PrintStream origSysOut;
     private PrintStream origSysErr;
  
     private PrintStream sysOut;
     private PrintStream sysErr;
  
     @BeforeEach
     public void setUp() throws Exception {
        origSysOut = System.out;
        origSysErr = System.err;
        sysOut = new PrintStream(new ByteArrayOutputStream());
        System.setOut(sysOut);
        sysErr = new PrintStream(new ByteArrayOutputStream());
        System.setErr(sysErr);
     }
  
     @AfterEach
     public void tearDown() throws Exception {
        System.setOut(origSysOut);
        System.setErr(origSysErr);
     }
  }
  