1 files changed, 57 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_xmlhttprequest.js b/netwerk/test/unit/test_xmlhttprequest.js
new file mode 100644
index 0000000000..7363a54cfd
--- /dev/null
+++ b/netwerk/test/unit/test_xmlhttprequest.js
@@ -0,0 +1,57 @@
+"use strict";
+
+const { HttpServer } = ChromeUtils.importESModule(
+  "resource://testing-common/httpd.sys.mjs"
+);
+
+var httpserver = new HttpServer();
+var testpath = "/simple";
+var httpbody = "<?xml version='1.0' ?><root>0123456789</root>";
+
+function createXHR(async) {
+  var xhr = new XMLHttpRequest();
+  xhr.open(
+    "GET",
+    "http://localhost:" + httpserver.identity.primaryPort + testpath,
+    async
+  );
+  return xhr;
+}
+
+function checkResults(xhr) {
+  if (xhr.readyState != 4) {
+    return false;
+  }
+
+  Assert.equal(xhr.status, 200);
+  Assert.equal(xhr.responseText, httpbody);
+
+  var root_node = xhr.responseXML.getElementsByTagName("root").item(0);
+  Assert.equal(root_node.firstChild.data, "0123456789");
+  return true;
+}
+
+function run_test() {
+  httpserver.registerPathHandler(testpath, serverHandler);
+  httpserver.start(-1);
+
+  // Test sync XHR sending
+  var sync = createXHR(false);
+  sync.send(null);
+  checkResults(sync);
+
+  // Test async XHR sending
+  let async = createXHR(true);
+  async.addEventListener("readystatechange", function (event) {
+    if (checkResults(async)) {
+      httpserver.stop(do_test_finished);
+    }
+  });
+  async.send(null);
+  do_test_pending();
+}
+
+function serverHandler(metadata, response) {
+  response.setHeader("Content-Type", "text/xml", false);
+  response.bodyOutputStream.write(httpbody, httpbody.length);
+}