gecko-dev/js/tests/ecma_2/browser.js

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
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 *
 * Contributor(s):
 *
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/*
 * JavaScript test library shared functions file for running the tests
 * in the browser.  Overrides the shell's print function with document.write
 * and make everything HTML pretty.
 *
 * To run the tests in the browser, use the mkhtml.pl script to generate
 * html pages that include the shell.js, browser.js (this file), and the
 * test js file in script tags.
 *
 * The source of the page that is generated should look something like this:
 *      <script src="./../shell.js"></script>
 *      <script src="./../browser.js"></script>
 *      <script src="./mytest.js"></script>
 */

var GLOBAL = this + '';

function htmlesc(str) { 
  if (str == '<') 
    return '&lt;'; 
  if (str == '>') 
    return '&gt;'; 
  if (str == '&') 
    return '&amp;'; 
  return str; 
}

function DocumentWrite(s)
{
  try
  {
    var msgDiv = document.createElement('div');
    msgDiv.innerHTML = s;
    document.body.appendChild(msgDiv);
    msgDiv = null;
  }
  catch(excp)
  {
    document.write(s + "<br>\n");
  }
}

function writeLineToLog( string ) {
  string = String(string);
  string = string.replace(/[<>&]/g, htmlesc);
  DocumentWrite( string + "<br>\n");
}
function writeHeaderToLog( string ) {
  string = String(string);
  string = string.replace(/[<>&]/g, htmlesc);
  DocumentWrite( "<h2>" + string + "</h2>" );
}

function writeFormattedResult( expect, actual, string, passed ) {
  string = String(string);
  string = string.replace(/[<>&]/g, htmlesc);
  var s = "<tt>"+ string ;
  s += "<b>" ;
  s += ( passed ) ? "<font color=#009900> &nbsp;" + PASSED
    : "<font color=#aa0000>&nbsp;" +  FAILED + expect + "</tt>";
  DocumentWrite( s + "</font></b></tt><br>" );
  return passed;
}


/*
 * The earlier versions of the test code used exceptions
 * to terminate the test script in "negative" test cases
 * before the failure reporting code could run. In order
 * to be able to capture errors for the "negative" case 
 * where the exception is a sign the test actually passed,
 * the err online handler will assume that any error is a 
 * failure unless gExceptionExpected is true.
 */
window.onerror = err;
var gExceptionExpected = false;

function err( msg, page, line ) {
  var testcase;
  var jsOptions = new JavaScriptOptions();

  jsOptions.setOption('strict', false);
  jsOptions.setOption('werror', false);

  if (typeof(EXPECTED) == "undefined" || EXPECTED != "error") {
    /*
     * an unexpected exception occured
     */
    writeLineToLog( "Test failed with the message: " + msg );
    testcase = new TestCase(SECTION, "unknown", "unknown", "unknown");
    testcase.passed = false;
    testcase.reason = "Error: " + msg + 
      " Source File: " + page + " Line: " + line + ".";
    if (document.location.href.indexOf('-n.js') != -1)
    {
      // negative test
      testcase.passed = true;
    }
    return;
  }

  if (typeof SECTION == 'undefined')
  {
    SECTION = 'Unknown';
  }
  if (typeof DESCRIPTION == 'undefined')
  {
    DESCRIPTION = 'Unknown';
  }
  if (typeof EXPECTED == 'undefined')
  {
    EXPECTED = 'Unknown';
  }

  testcase = new TestCase(SECTION, DESCRIPTION, EXPECTED, "error");
  testcase.reason += "Error: " + msg + 
    " Source File: " + page + " Line: " + line + ".";
  stopTest();

  gDelayTestDriverEnd = false;
  jsTestDriverEnd();

}

var gVersion = 0;

function version(v)
{
  if (v) { 
    gVersion = v; 
  } 
  return gVersion; 
}

function gc()
{
  try
  {
    // Thanks to dveditz
    netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
    var jsdIDebuggerService = Components.interfaces.jsdIDebuggerService;
    var service = Components.classes['@mozilla.org/js/jsd/debugger-service;1'].
      getService(jsdIDebuggerService);
    service.GC();
  }
  catch(ex)
  {
    writeLineToLog('gc: ' + ex);
    // Thanks to igor.bukanov@gmail.com
    var tmp = Math.PI * 1e500, tmp2;
    for (var i = 0; i != 1 << 15; ++i) 
    {
      tmp2 = tmp * 1.5;
    }
  }
}