function test() {
  var rootDir = "http://mochi.test:8888/browser/docshell/test/browser/";
  runCharsetTest(rootDir + "file_bug1543077-3.html", afterOpen, "Japanese", afterChangeCharset);
}

function afterOpen() {
  is(content.document.documentElement.textContent.indexOf("\u001B"), 136, "Parent doc should be windows-1252 initially");

  is(content.frames[0].document.documentElement.textContent.indexOf("\u001B"), 92, "Child doc should be windows-1252 initially");
}

function afterChangeCharset() {
  is(content.document.documentElement.textContent.indexOf("\u3042"), 136, "Parent doc should decode as ISO-2022-JP subsequently");
  is(content.frames[0].document.documentElement.textContent.indexOf("\u3042"), 92, "Child doc should decode as ISO-2022-JP subsequently");

  is(content.document.characterSet, "ISO-2022-JP", "Parent doc should report ISO-2022-JP subsequently");
  is(content.frames[0].document.characterSet, "ISO-2022-JP", "Child doc should report ISO-2022-JP subsequently");
}