The version of Apache log4j used by SoundHelix.

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v1.3alpha8 :: tests / src / java / org / apache / log4j /

HTMLLayoutTest.java

/*
 * Copyright 1999,2005 The Apache Software Foundation.
 *
 * Licensed 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 org.apache.log4j.spi.LoggingEvent;

import org.w3c.dom.Document;

import org.xml.sax.InputSource;

import java.io.Reader;
import java.io.StringReader;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;


/**
 * Test for HTMLLayout.
 *
 * @author Curt Arnold
 */
public class HTMLLayoutTest extends LayoutTest {
  /**
   * Construct new instance of XMLLayoutTest.
   *
   * @param testName test name.
   */
  public HTMLLayoutTest(final String testName) {
    super(testName, "text/html", false, null, null);
  }

  /**
   * @{inheritDoc}
   */
  protected Layout createLayout() {
    return new HTMLLayout();
  }

  /**
   * Parses the string as the body of an XML document and returns the document element.
   * @param source source string.
   * @return document element.
   * @throws Exception if parser can not be constructed or source is not a valid XML document.
   */
  private Document parse(final String source) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(false);
    factory.setCoalescing(true);

    DocumentBuilder builder = factory.newDocumentBuilder();
    Reader reader = new StringReader(source);

    return builder.parse(new InputSource(reader));
  }

  /**
   * Tests formatted results.
   * @throws Exception if unable to create parser or output is not valid XML.
   */
  public void testFormat() throws Exception {
    Logger logger = Logger.getLogger("org.apache.log4j.xml.HTMLLayoutTest");
    NDC.push("NDC goes here");

    LoggingEvent event =
      new LoggingEvent(
        "org.apache.log4j.Logger", logger, Level.INFO, "Hello, World", null);
    HTMLLayout layout = (HTMLLayout) createLayout();
    layout.setLocationInfo(true);

    String result = layout.format(event);
    NDC.pop();

    String src =
      "<!DOCTYPE body [ <!ENTITY nbsp ' '>]><body>" + result + "</body>";
    Document doc = parse(src);
  }

  /**
   * Tests getHeader.
   */
  public void testGetHeader() {
    assertEquals("<!DOCTYPE", createLayout().getHeader().substring(0, 9));
  }

  /**
   * Tests getHeader with locationInfo = true.
   */
  public void testGetHeaderWithLocation() {
    HTMLLayout layout = (HTMLLayout) createLayout();
    layout.setLocationInfo(true);
    assertEquals("<!DOCTYPE", layout.getHeader().substring(0, 9));
  }

  /**
   * Tests getFooter.
   */
  public void testGetFooter() {
    assertEquals("</table>", createLayout().getFooter().substring(0, 8));
  }

  /**
   * Tests getLocationInfo and setLocationInfo.
   */
  public void testGetSetLocationInfo() {
    HTMLLayout layout = new HTMLLayout();
    assertEquals(false, layout.getLocationInfo());
    layout.setLocationInfo(true);
    assertEquals(true, layout.getLocationInfo());
    layout.setLocationInfo(false);
    assertEquals(false, layout.getLocationInfo());
  }

  /**
   * Tests activateOptions().
   */
  public void testActivateOptions() {
    HTMLLayout layout = new HTMLLayout();
    layout.activateOptions();
  }

  /**
   * Tests getTitle and setTitle.
   */
  public void testGetSetTitle() {
    HTMLLayout layout = new HTMLLayout();
    assertEquals("Log4J Log Messages", layout.getTitle());
    layout.setTitle(null);
    assertNull(layout.getTitle());

    String newTitle = "A treatise on messages of log persuasion";
    layout.setTitle(newTitle);
    assertEquals(newTitle, layout.getTitle());
  }

  /**
   * Tests buffer downsizing and DEBUG and WARN colorization code paths.
   */
  public void testFormatResize() {
    Logger logger = Logger.getLogger("org.apache.log4j.xml.HTMLLayoutTest");
    NDC.clear();

    char[] msg = new char[2000];

    for (int i = 0; i < msg.length; i++) {
      msg[i] = 'A';
    }

    LoggingEvent event1 =
      new LoggingEvent(
        "org.apache.log4j.Logger", logger, Level.DEBUG, new String(msg), null);
    HTMLLayout layout = (HTMLLayout) createLayout();
    layout.setLocationInfo(true);

    String result = layout.format(event1);
    Exception ex = new IllegalArgumentException("'foo' is not a valid value.");
    LoggingEvent event2 =
      new LoggingEvent(
        "org.apache.log4j.Logger", logger, Level.WARN, "Hello, World", ex);
    result = layout.format(event2);
    assertEquals(
      Layout.LINE_SEP + "<tr class=",
      result.substring(0, Layout.LINE_SEP.length() + 10));
  }
}
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