SimpleLoggerTest xref

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    1   /**
    2    * Copyright (c) 2004-2012 QOS.ch
    3    * All rights reserved.
    4    *
    5    * Permission is hereby granted, free  of charge, to any person obtaining
    6    * a  copy  of this  software  and  associated  documentation files  (the
    7    * "Software"), to  deal in  the Software without  restriction, including
    8    * without limitation  the rights to  use, copy, modify,  merge, publish,
    9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    10   * permit persons to whom the Software  is furnished to do so, subject to
    11   * the following conditions:
    12   *
    13   * The  above  copyright  notice  and  this permission  notice  shall  be
    14   * included in all copies or substantial portions of the Software.
    15   *
    16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    23   *
    24   */
    25  package org.slf4j.impl;
    26
    27  import static org.junit.Assert.assertEquals;
    28  import static org.junit.Assert.assertFalse;
    29  import static org.junit.Assert.assertNull;
    30  import static org.junit.Assert.assertTrue;
    31
    32  import java.io.ByteArrayOutputStream;
    33  import java.io.PrintStream;
    34
    35  import org.junit.After;
    36  import org.junit.Before;
    37  import org.junit.Test;
    38
    39  public class SimpleLoggerTest {
    40
    41      String A_KEY = SimpleLogger.LOG_KEY_PREFIX + "a";
    42      PrintStream original = System.out;
    43      ByteArrayOutputStream bout = new ByteArrayOutputStream();
    44      PrintStream replacement = new PrintStream(bout);
    45
    46      @Before
    47      public void before() {
    48          System.setProperty(A_KEY, "info");
    49      }
    50
    51      @After
    52      public void after() {
    53          System.clearProperty(A_KEY);
    54          System.clearProperty(SimpleLogger.CACHE_OUTPUT_STREAM_STRING_KEY);
    55          System.setErr(original);
    56      }
    57
    58      @Test
    59      public void emptyLoggerName() {
    60          SimpleLogger simpleLogger = new SimpleLogger("a");
    61          assertEquals("info", simpleLogger.recursivelyComputeLevelString());
    62      }
    63
    64      @Test
    65      public void offLevel() {
    66          System.setProperty(A_KEY, "off");
    67          SimpleLogger.init();
    68          SimpleLogger simpleLogger = new SimpleLogger("a");
    69          assertEquals("off", simpleLogger.recursivelyComputeLevelString());
    70          assertFalse(simpleLogger.isErrorEnabled());
    71      }
    72
    73      @Test
    74      public void loggerNameWithNoDots_WithLevel() {
    75          SimpleLogger.init();
    76          SimpleLogger simpleLogger = new SimpleLogger("a");
    77
    78          assertEquals("info", simpleLogger.recursivelyComputeLevelString());
    79      }
    80
    81      @Test
    82      public void loggerNameWithOneDotShouldInheritFromParent() {
    83          SimpleLogger simpleLogger = new SimpleLogger("a.b");
    84          assertEquals("info", simpleLogger.recursivelyComputeLevelString());
    85      }
    86
    87      @Test
    88      public void loggerNameWithNoDots_WithNoSetLevel() {
    89          SimpleLogger simpleLogger = new SimpleLogger("x");
    90          assertNull(simpleLogger.recursivelyComputeLevelString());
    91      }
    92
    93      @Test
    94      public void loggerNameWithOneDot_NoSetLevel() {
    95          SimpleLogger simpleLogger = new SimpleLogger("x.y");
    96          assertNull(simpleLogger.recursivelyComputeLevelString());
    97      }
    98
    99      @Test
    100     public void checkUseOfLastSystemStreamReference() {
    101         SimpleLogger.init();
    102         SimpleLogger simpleLogger = new SimpleLogger(this.getClass().getName());
    103
    104         System.setErr(replacement);
    105         simpleLogger.info("hello");
    106         replacement.flush();
    107         assertTrue(bout.toString().contains("INFO org.slf4j.impl.SimpleLoggerTest - hello"));
    108     }
    109
    110     @Test
    111     public void checkUseOfCachedOutputStream() {
    112         System.setErr(replacement);
    113         System.setProperty(SimpleLogger.CACHE_OUTPUT_STREAM_STRING_KEY, "true");
    114         SimpleLogger.init();
    115         SimpleLogger simpleLogger = new SimpleLogger(this.getClass().getName());
    116         // change reference to original before logging
    117         System.setErr(original);
    118
    119         simpleLogger.info("hello");
    120         replacement.flush();
    121         assertTrue(bout.toString().contains("INFO org.slf4j.impl.SimpleLoggerTest - hello"));
    122     }
    123 }