The version of Apache log4j used by SoundHelix.

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v1_2_16 :: tests / src / java / org / apache / log4j /

LayoutTest.java

/*
 * 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.log4j;

import junit.framework.TestCase;

import org.apache.log4j.spi.LoggingEvent;


/**
 * Tests for Layout.
 *
 */
public class LayoutTest extends TestCase {
  /**
   * Expected content type.
   */
  private final String contentType;

  /**
   * Expected value for ignoresThrowable.
   */
  private final boolean ignoresThrowable;

  /**
   * Expected value for header.
   */
  private final String header;

  /**
    * Expected value for footer.
    */
  private final String footer;

  /**
   * Construct a new instance of LayoutTest.
   * @param testName test name.
   */
  public LayoutTest(final String testName) {
    super(testName);
    contentType = "text/plain";
    ignoresThrowable = true;
    header = null;
    footer = null;
  }

  /**
   * Constructor for use by derived tests.
   * @param testName name of test.
   * @param expectedContentType expected value for getContentType().
   * @param expectedIgnoresThrowable expected value for ignoresThrowable().
   * @param expectedHeader expected value for getHeader().
   * @param expectedFooter expected value for getFooter().
   */
  protected LayoutTest(
    final String testName, final String expectedContentType,
    final boolean expectedIgnoresThrowable, final String expectedHeader,
    final String expectedFooter) {
    super(testName);
    contentType = expectedContentType;
    ignoresThrowable = expectedIgnoresThrowable;
    header = expectedHeader;
    footer = expectedFooter;
  }

  /**
   * Tests Layout.LINE_SEP.
   */
  public void testLineSep() {
    assertEquals(System.getProperty("line.separator"), Layout.LINE_SEP);
  }

  /**
   * Tests Layout.LINE_SEP.
   */
  public void testLineSepLen() {
    assertEquals(Layout.LINE_SEP.length(), Layout.LINE_SEP_LEN);
  }

  /**
   * Creates layout for test.
   * @return new instance of Layout.
   */
  protected Layout createLayout() {
    return new MockLayout();
  }

  /**
   * Tests getContentType.
   */
  public void testGetContentType() {
    assertEquals(contentType, createLayout().getContentType());
  }

  /**
   * Tests ignoresThrowable.
   */
  public void testIgnoresThrowable() {
    assertEquals(ignoresThrowable, createLayout().ignoresThrowable());
  }

  /**
   * Tests getHeader.
   */
  public void testGetHeader() {
    assertEquals(header, createLayout().getHeader());
  }

  /**
   * Tests getFooter.
   */
  public void testGetFooter() {
    assertEquals(footer, createLayout().getFooter());
  }

  /**
   * Tests format.
   * @throws Exception derived tests, particular XMLLayoutTest, may throw exceptions.
   */
  public void testFormat() throws Exception {
    Logger logger = Logger.getLogger("org.apache.log4j.LayoutTest");
    LoggingEvent event =
      new LoggingEvent(
        "org.apache.log4j.Logger", logger, Level.INFO, "Hello, World", null);
    String result = createLayout().format(event);
    assertEquals("Mock", result);
  }

  /**
   * Concrete Layout class for tests.
   */
  private static final class MockLayout extends Layout {
    /**
     * @{inheritDoc}
     */
    public String format(final LoggingEvent event) {
      return "Mock";
    }

    /**
     * @{inheritDoc}
     */
    public void activateOptions() {
    }

    /**
     * @{inheritDoc}
     */
    public boolean ignoresThrowable() {
      return true;
    }
  }
}
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