1 files changed, 79 insertions, 0 deletions
diff --git a/toolkit/components/filewatcher/tests/xpcshell/test_arguments.js b/toolkit/components/filewatcher/tests/xpcshell/test_arguments.js
new file mode 100644
index 000000000..7e62b1cb6
--- /dev/null
+++ b/toolkit/components/filewatcher/tests/xpcshell/test_arguments.js
@@ -0,0 +1,79 @@
+/* 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/. */
+
+"use strict";
+
+function run_test() {
+  // Set up profile. We will use profile path create some test files.
+  do_get_profile();
+
+  // Start executing the tests.
+  run_next_test();
+}
+
+/**
+ * Test for addPath usage with null arguments.
+ */
+add_task(function* test_null_args_addPath() {
+
+  let watcher = makeWatcher();
+  let testPath = 'someInvalidPath';
+
+  // Define a dummy callback function. In this test no callback is
+  // expected to be called.
+  let dummyFunc = function(changed) {
+    do_throw("Not expected in this test.");
+  };
+
+  // Check for error when passing a null first argument
+  try {
+    watcher.addPath(testPath, null, dummyFunc);
+  } catch (ex) {
+    if (ex.result != Cr.NS_ERROR_NULL_POINTER)
+      throw ex;
+    do_print("Initialisation thrown NS_ERROR_NULL_POINTER as expected.");
+  }
+
+  // Check for error when passing both null arguments
+  try {
+    watcher.addPath(testPath, null, null);
+  } catch (ex) {
+    if (ex.result != Cr.NS_ERROR_NULL_POINTER)
+      throw ex;
+    do_print("Initialisation thrown NS_ERROR_NULL_POINTER as expected.");
+  }
+});
+
+/**
+ * Test for removePath usage with null arguments.
+ */
+add_task(function* test_null_args_removePath() {
+
+  let watcher = makeWatcher();
+  let testPath = 'someInvalidPath';
+
+  // Define a dummy callback function. In this test no callback is
+  // expected to be called.
+  let dummyFunc = function(changed) {
+    do_throw("Not expected in this test.");
+  };
+
+  // Check for error when passing a null first argument
+  try {
+    watcher.removePath(testPath, null, dummyFunc);
+  } catch (ex) {
+    if (ex.result != Cr.NS_ERROR_NULL_POINTER)
+      throw ex;
+    do_print("Initialisation thrown NS_ERROR_NULL_POINTER as expected.");
+  }
+
+  // Check for error when passing both null arguments
+  try {
+    watcher.removePath(testPath, null, null);
+  } catch (ex) {
+    if (ex.result != Cr.NS_ERROR_NULL_POINTER)
+      throw ex;
+    do_print("Initialisation thrown NS_ERROR_NULL_POINTER as expected.");
+  }
+});