Add m-esr52 at 52.6.0

1 files changed, 69 insertions, 0 deletions

diff --git a/toolkit/components/filewatcher/tests/xpcshell/test_no_error_callback.js b/toolkit/components/filewatcher/tests/xpcshell/test_no_error_callback.js
new file mode 100644
index 000000000..e5ceb33e5
--- /dev/null
+++ b/toolkit/components/filewatcher/tests/xpcshell/test_no_error_callback.js
@@ -0,0 +1,69 @@
+/* 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 the component behaves correctly when no error callback is
+ * provided and an error occurs.
+ */
+add_task(function* test_error_with_no_error_callback() {
+
+  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.");
+  };
+
+  // We don't pass an error callback and try to watch an invalid
+  // path.
+  watcher.addPath(testPath, dummyFunc);
+});
+
+/**
+ * Test the component behaves correctly when no error callback is
+ * provided (no error should occur).
+ */
+add_task(function* test_watch_single_path_file_creation_no_error_cb() {
+
+  // Create and watch a sub-directory of the profile directory so we don't
+  // catch notifications we're not interested in (i.e. "startupCache").
+  let watchedDir = OS.Path.join(OS.Constants.Path.profileDir, "filewatcher_playground");
+  yield OS.File.makeDir(watchedDir);
+
+  let tempFileName = "test_filecreation.tmp";
+
+  // Instantiate and initialize the native watcher.
+  let watcher = makeWatcher();
+  let deferred = Promise.defer();
+
+  // Watch the profile directory but do not pass an error callback.
+  yield promiseAddPath(watcher, watchedDir, deferred.resolve);
+
+  // Create a file within the watched directory.
+  let tmpFilePath = OS.Path.join(watchedDir, tempFileName);
+  yield OS.File.writeAtomic(tmpFilePath, "some data");
+
+  // Wait until the watcher informs us that the file was created.
+  let changed = yield deferred.promise;
+  do_check_eq(changed, tmpFilePath);
+
+  // Remove the watch and free the associated memory (we need to
+  // reuse 'deferred.resolve' to unregister).
+  watcher.removePath(watchedDir, deferred.resolve);
+
+  // Remove the test directory and all of its content.
+  yield OS.File.removeDir(watchedDir);
+});