/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.classic.spi;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.Arrays;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class CallerDataTest {
  
      @Test
      public void testBasic() {
          Throwable t = new Throwable();
          StackTraceElement[] steArray = t.getStackTrace();
  
          StackTraceElement[] cda = CallerData.extract(t, CallerDataTest.class.getName(), 100, null);
          Arrays.stream(cda).forEach( ste -> System.out.println(ste));
          assertNotNull(cda);
          assertTrue(cda.length > 0);
          assertEquals(steArray.length - 1, cda.length);
      }
  
      /**
       * This test verifies that in case caller data cannot be extracted,
       * CallerData.extract does not throw an exception
       *
       */
      @Test
      public void testDeferredProcessing() {
          StackTraceElement[] cda = CallerData.extract(new Throwable(), "com.inexistent.foo", 10, null);
          assertNotNull(cda);
          assertEquals(0, cda.length);
      }
  
  }