third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/getResponseHeader.html

   1 <!doctype html>
   2 <html>
   3 <head>
   4 <title>Testing XMLHttpRequest.getReponseHeader behavior</title>
   5 <script src="/js-test-resources/js-test.js"></script>
   6 <script type="text/javascript">
   7 description("Test the required behavior of XMLHttpRequest.getResponseHeader()");
   8
   9 window.jsTestIsAsync = true;
  10
  11 var savedHeader = null;
  12 var headerName = "Content-Type";
  13 var nullTests = [ "SeT-COoKie",
  14                   "sEt-coOkIE2",
  15                   "xxx-mytest-headerabc",
  16                   null,
  17                   "Content-Type:" ];
  18
  19 var xhr = new XMLHttpRequest();
  20
  21 var headerValue;
  22 function testGetResponseHeader(xhr, headerName, expectNull) {
  23     shouldNotThrow("{state: " + xhr.readyState + "}; headerValue = xhr.getResponseHeader('" + headerName + "');");
  24     if (expectNull)
  25         shouldBeNull("headerValue");
  26     else
  27         shouldBeNonNull("headerValue");
  28
  29     return headerValue;
  30 }
  31
  32 var result;
  33 xhr.onreadystatechange = function() {
  34     var rState = this.readyState;
  35     result = testGetResponseHeader(this, headerName, rState <= XMLHttpRequest.OPENED);
  36     if (result) {
  37         if (savedHeader)
  38             shouldBe("result", "savedHeader");
  39
  40         savedHeader = result;
  41
  42         for (var i = 0; i < nullTests.length; ++i)
  43             testGetResponseHeader(this, nullTests[i], true);
  44     } else {
  45         if (rState > XMLHttpRequest.OPENED)
  46             testFailed("In ready state " + rState + ", unexpected null value for '" + headerName + "'.");
  47         else if (result !== null)
  48             testFailed("In ready state " + rState + ", expected null for '" + headerName + ", got: " + JSON.stringify(result) + ".");
  49         else
  50             testPassed("Header '" + headerName + "' is null in ready state " + rState + ".");
  51     }
  52
  53     if (rState == XMLHttpRequest.DONE)
  54         finishJSTest();
  55 }
  56
  57 function runTest() {
  58     // Test for readyState = 0
  59     testGetResponseHeader(xhr, headerName, true);
  60     shouldNotThrow('xhr.open("GET", "resources/1251.html", true);');
  61     // Test for readyState = 1
  62     testGetResponseHeader(xhr, headerName, true);
  63     shouldNotThrow("xhr.send(null);");
  64 }
  65 runTest();
  66 </script>
  67 </head>
  68 </html>