1 files changed, 74 insertions, 0 deletions
diff --git a/toolkit/components/search/tests/xpcshell/test_require_engines_in_cache.js b/toolkit/components/search/tests/xpcshell/test_require_engines_in_cache.js
new file mode 100644
index 0000000000..299121c4f4
--- /dev/null
+++ b/toolkit/components/search/tests/xpcshell/test_require_engines_in_cache.js
@@ -0,0 +1,74 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  removeMetadata();
+  removeCacheFile();
+
+  do_load_manifest("data/chrome.manifest");
+
+  configureToLoadJarEngines();
+  do_check_false(Services.search.isInitialized);
+
+  run_next_test();
+}
+
+add_task(function* ignore_cache_files_without_engines() {
+  let commitPromise = promiseAfterCache()
+  yield asyncInit();
+
+  let engineCount = Services.search.getEngines().length;
+  do_check_eq(engineCount, 1);
+
+  // Wait for the file to be saved to disk, so that we can mess with it.
+  yield commitPromise;
+
+  // Remove all engines from the cache file.
+  let cache = yield promiseCacheData();
+  cache.engines = [];
+  yield promiseSaveCacheData(cache);
+
+  // Check that after an async re-initialization, we still have the same engine count.
+  commitPromise = promiseAfterCache()
+  yield asyncReInit();
+  do_check_eq(engineCount, Services.search.getEngines().length);
+  yield commitPromise;
+
+  // Check that after a sync re-initialization, we still have the same engine count.
+  yield promiseSaveCacheData(cache);
+  let unInitPromise = waitForSearchNotification("uninit-complete");
+  let reInitPromise = asyncReInit();
+  yield unInitPromise;
+  do_check_false(Services.search.isInitialized);
+  // Synchronously check the engine count; will force a sync init.
+  do_check_eq(engineCount, Services.search.getEngines().length);
+  do_check_true(Services.search.isInitialized);
+  yield reInitPromise;
+});
+
+add_task(function* skip_writing_cache_without_engines() {
+  let unInitPromise = waitForSearchNotification("uninit-complete");
+  let reInitPromise = asyncReInit();
+  yield unInitPromise;
+
+  // Configure so that no engines will be found.
+  do_check_true(removeCacheFile());
+  let resProt = Services.io.getProtocolHandler("resource")
+                        .QueryInterface(Ci.nsIResProtocolHandler);
+  resProt.setSubstitution("search-plugins",
+                          Services.io.newURI("about:blank", null, null));
+
+  // Let the async-reInit happen.
+  yield reInitPromise;
+  do_check_eq(0, Services.search.getEngines().length);
+
+  // Trigger yet another re-init, to flush of any pending cache writing task.
+  unInitPromise = waitForSearchNotification("uninit-complete");
+  reInitPromise = asyncReInit();
+  yield unInitPromise;
+
+  // Now check that a cache file doesn't exist.
+  do_check_false(removeCacheFile());
+
+  yield reInitPromise;
+});