1 files changed, 71 insertions, 0 deletions
diff --git a/dom/base/test/unit/head_utilities.js b/dom/base/test/unit/head_utilities.js
new file mode 100644
index 0000000000..0de7868642
--- /dev/null
+++ b/dom/base/test/unit/head_utilities.js
@@ -0,0 +1,71 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var {
+  HTTP_400,
+  HTTP_401,
+  HTTP_402,
+  HTTP_403,
+  HTTP_404,
+  HTTP_405,
+  HTTP_406,
+  HTTP_407,
+  HTTP_408,
+  HTTP_409,
+  HTTP_410,
+  HTTP_411,
+  HTTP_412,
+  HTTP_413,
+  HTTP_414,
+  HTTP_415,
+  HTTP_417,
+  HTTP_500,
+  HTTP_501,
+  HTTP_502,
+  HTTP_503,
+  HTTP_504,
+  HTTP_505,
+  HttpError,
+  HttpServer,
+} = ChromeUtils.importESModule("resource://testing-common/httpd.sys.mjs");
+var { NetUtil } = ChromeUtils.importESModule(
+  "resource://gre/modules/NetUtil.sys.mjs"
+);
+
+const nsIDocumentEncoder = Ci.nsIDocumentEncoder;
+const replacementChar =
+  Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER;
+
+function loadContentFile(aFile, aCharset) {
+  // if(aAsIso == undefined) aAsIso = false;
+  if (aCharset == undefined) {
+    aCharset = "UTF-8";
+  }
+
+  var file = do_get_file(aFile);
+
+  var chann = NetUtil.newChannel({
+    uri: Services.io.newFileURI(file),
+    loadUsingSystemPrincipal: true,
+  });
+  chann.contentCharset = aCharset;
+
+  /* var inputStream = Components.classes["@mozilla.org/scriptableinputstream;1"]
+                        .createInstance(Components.interfaces.nsIScriptableInputStream);
+    inputStream.init(chann.open());
+    return inputStream.read(file.fileSize);
+    */
+
+  var inputStream = Cc[
+    "@mozilla.org/intl/converter-input-stream;1"
+  ].createInstance(Ci.nsIConverterInputStream);
+  inputStream.init(chann.open(), aCharset, 1024, replacementChar);
+  var str = {},
+    content = "";
+  while (inputStream.readString(4096, str) != 0) {
+    content += str.value;
+  }
+  return content;
+}