import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

netwerk/test/unit/test_bug376660.js

@@ -0,0 +1,72 @@
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+
+var listener = {
+  expect_failure: false,
+  QueryInterface: function listener_qi(iid) {
+    if (iid.equals(Ci.nsISupports) ||
+        iid.equals(Ci.nsIUnicharStreamLoaderObserver)) {
+      return this;
+    }
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  },
+  onDetermineCharset : function onDetermineCharset(loader, context, data)
+  {
+    return "us-ascii";
+  },
+  onStreamComplete : function onStreamComplete (loader, context, status, data)
+  {
+    try {
+      if (this.expect_failure)
+        do_check_false(Components.isSuccessCode(status));
+      else
+        do_check_eq(status, Components.results.NS_OK);
+      do_check_eq(data, "");
+      do_check_neq(loader.channel, null);
+      tests[current_test++]();
+    } finally {
+      do_test_finished();
+    }
+  }
+};
+
+var current_test = 0;
+var tests = [test1, test2, done];
+
+function run_test() {
+  tests[current_test++]();
+}
+
+function test1() {
+  var f =
+      Cc["@mozilla.org/network/unichar-stream-loader;1"].
+      createInstance(Ci.nsIUnicharStreamLoader);
+  f.init(listener);
+
+  var chan = NetUtil.newChannel({
+    uri: "data:text/plain,",
+    loadUsingSystemPrincipal: true
+  });
+  chan.asyncOpen2(f);
+  do_test_pending();
+}
+
+function test2() {
+  var f =
+      Cc["@mozilla.org/network/unichar-stream-loader;1"].
+      createInstance(Ci.nsIUnicharStreamLoader);
+  f.init(listener);
+
+  var chan = NetUtil.newChannel({
+    uri: "http://localhost:0/",
+    loadUsingSystemPrincipal: true
+  });
+  listener.expect_failure = true;
+  chan.asyncOpen2(f);
+  do_test_pending();
+}
+
+function done() {
+}