import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

netwerk/test/unit/test_gre_resources.js

@@ -0,0 +1,31 @@
+// test that things that are expected to be in gre-resources are still there
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+var ios = Cc["@mozilla.org/network/io-service;1"]. getService(Ci.nsIIOService);
+
+function wrapInputStream(input)
+{
+  var nsIScriptableInputStream = Components.interfaces.nsIScriptableInputStream;
+  var factory = Components.classes["@mozilla.org/scriptableinputstream;1"];
+  var wrapper = factory.createInstance(nsIScriptableInputStream);
+  wrapper.init(input);
+  return wrapper;
+}
+
+function check_file(file) {
+  var channel = NetUtil.newChannel({
+    uri: "resource://gre-resources/"+file,
+    loadUsingSystemPrincipal: true
+  });
+  try {
+    let instr = wrapInputStream(channel.open2());
+    do_check_true(instr.read(1024).length > 0)
+  } catch (e) {
+    do_throw("Failed to read " + file + " from gre-resources:"+e)
+  }
+}
+
+function run_test() {
+  for (let file of ["ua.css"])
+    check_file(file)
+}