/**
    * Copyright (c) 2004-2011 QOS.ch
    * All rights reserved.
    *
    * Permission is hereby granted, free  of charge, to any person obtaining
    * a  copy  of this  software  and  associated  documentation files  (the
    * "Software"), to  deal in  the Software without  restriction, including
    * without limitation  the rights to  use, copy, modify,  merge, publish,
    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
   * permit persons to whom the Software  is furnished to do so, subject to
   * the following conditions:
   *
   * The  above  copyright  notice  and  this permission  notice  shall  be
   * included in all copies or substantial portions of the Software.
   *
   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   *
   */
  package org.slf4j.simple;
  
  import static org.junit.Assert.assertNull;
  
  import java.io.PrintStream;
  
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.slf4j.MDC;
  import org.slf4j.Marker;
  import org.slf4j.MarkerFactory;
  
  /**
   * Test whether invoking the SLF4J API causes problems or not.
   * 
   * @author Ceki Gulcu
   *
   */
  public class InvocationTest {
  
      PrintStream old = System.err;
  
      @Before
      public void setUp() throws Exception {
          System.setErr(new SilentPrintStream(old));
      }
  
      @After
      public void tearDown() throws Exception {
          System.setErr(old);
      }
  
      @Test
      public void test1() {
          Logger logger = LoggerFactory.getLogger("test1");
          logger.debug("Hello world.");
      }
  
      @Test
      public void test2() {
          Integer i1 = Integer.valueOf(1);
          Integer i2 = Integer.valueOf(2);
          Integer i3 = Integer.valueOf(3);
          Exception e = new Exception("This is a test exception.");
          Logger logger = LoggerFactory.getLogger("test2");
  
          logger.debug("Hello world 1.");
          logger.debug("Hello world {}", i1);
          logger.debug("val={} val={}", i1, i2);
          logger.debug("val={} val={} val={}", new Object[] { i1, i2, i3 });
  
          logger.debug("Hello world 2", e);
          logger.info("Hello world 2.");
  
          logger.warn("Hello world 3.");
          logger.warn("Hello world 3", e);
  
          logger.error("Hello world 4.");
          logger.error("Hello world {}", Integer.valueOf(3));
          logger.error("Hello world 4.", e);
      }
  
      // http://jira.qos.ch/browse/SLF4J-69
      // formerly http://bugzilla.slf4j.org/show_bug.cgi?id=78
      @Test
      public void testNullParameter_BUG78() {
          Logger logger = LoggerFactory.getLogger("testNullParameter_BUG78");
          String[] parameters = null;
          String msg = "hello {}";
          logger.info(msg, (Object[]) parameters);
      }
  
     @Test
     public void testNull() {
         Logger logger = LoggerFactory.getLogger("testNull");
         logger.debug(null);
         logger.info(null);
         logger.warn(null);
         logger.error(null);
 
         Exception e = new Exception("This is a test exception.");
         logger.debug(null, e);
         logger.info(null, e);
         logger.warn(null, e);
         logger.error(null, e);
     }
 
     @Test
     public void testMarker() {
         Logger logger = LoggerFactory.getLogger("testMarker");
         Marker blue = MarkerFactory.getMarker("BLUE");
         logger.debug(blue, "hello");
         logger.info(blue, "hello");
         logger.warn(blue, "hello");
         logger.error(blue, "hello");
 
         logger.debug(blue, "hello {}", "world");
         logger.info(blue, "hello {}", "world");
         logger.warn(blue, "hello {}", "world");
         logger.error(blue, "hello {}", "world");
 
         logger.debug(blue, "hello {} and {} ", "world", "universe");
         logger.info(blue, "hello {} and {} ", "world", "universe");
         logger.warn(blue, "hello {} and {} ", "world", "universe");
         logger.error(blue, "hello {} and {} ", "world", "universe");
     }
 
     @Test
     public void testMDC() {
         MDC.put("k", "v");
         assertNull(MDC.get("k"));
         MDC.remove("k");
         assertNull(MDC.get("k"));
         MDC.clear();
     }
 }