/*
    * 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
    *
    *      https://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.commons.pool2.impl;
  
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.io.PrintWriter;
  import java.io.StringWriter;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests {@link CallStackUtils}.
   */
  class TestCallStackUtils {
  
      private static final String MESSAGE_FORMAT = "'Timestamp:' yyyy-MM-dd HH:mm:ss Z";
  
      private void assertNewCallStack(final CallStack callStack) {
          callStack.fillInStackTrace();
          final StringWriter out = new StringWriter();
          callStack.printStackTrace(new PrintWriter(out));
          assertFalse(out.toString().isEmpty());
          callStack.clear();
          out.getBuffer().setLength(0);
          callStack.printStackTrace(new PrintWriter(out));
          assertTrue(out.toString().isEmpty());
      }
  
      @Test
      void testNewCallStack2() {
          assertNewCallStack(CallStackUtils.newCallStack(MESSAGE_FORMAT, false));
          assertNewCallStack(CallStackUtils.newCallStack(MESSAGE_FORMAT, true));
      }
  
      @Test
      void testNewCallStack3() {
          assertNewCallStack(CallStackUtils.newCallStack(MESSAGE_FORMAT, false, false));
          assertNewCallStack(CallStackUtils.newCallStack(MESSAGE_FORMAT, false, true));
      }
  }