CharsetDetectionTests.js

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/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */

/* vim: set ts=8 et sw=4 tw=80: */

var gExpectedCharset;

var gLocalDir;

function CharsetDetectionTests(aTestFile, aExpectedCharset) {

  gExpectedCharset = aExpectedCharset;

  InitDetectorTests();

  var fileURI = gLocalDir + aTestFile;

  $("testframe").src = fileURI;

  SimpleTest.waitForExplicitFinish();

function InitDetectorTests() {

  var loader = Services.scriptloader;

  var ioService = Services.io;

  loader.loadSubScript("chrome://mochikit/content/chrome-harness.js");

  $("testframe").onload = DoDetectionTest;

  if (gExpectedCharset == "default") {

    // No point trying to be generic here, because we have plenty of other

    // unit tests that fail if run using a non-windows-1252 locale.

    gExpectedCharset = "windows-1252";

  // Get the local directory. This needs to be a file: URI because chrome:

  // URIs are always UTF-8 (bug 617339) and we are testing decoding from other

  // charsets.

  var jar = getJar(getRootDirectory(window.location.href));

  var dir = jar

    ? extractJarToTmp(jar)

    : getChromeDir(getResolvedURI(window.location.href));

  gLocalDir = ioService.newFileURI(dir).spec;

function DoDetectionTest() {

  var iframeDoc = $("testframe").contentDocument;

  var charset = iframeDoc.characterSet;

  is(charset, gExpectedCharset, "decoded as " + gExpectedCharset);

  SimpleTest.finish();