Bug 1195135 - Test for storage "stores-cleared" event. r=mratcliffe

browser/devtools/storage/test/browser_storage_dynamic_updates.js

@@ -197,5 +197,13 @@ add_task(function*() {
 
   yield findVariableViewProperties([{name: "ss2", value: "changed=ss2"}]);
 
+  // Clearing items
+  yield gWindow.clear();
+
+  yield gUI.once("store-objects-cleared");
+
+  is($$("#value .table-widget-cell").length, 0,
+     "Table should be cleared");
+
   yield finishTests();
 });

browser/devtools/storage/ui.js

@@ -146,6 +146,7 @@ StorageUI.prototype = {
     if (response.hasOwnProperty(type) && response[type].indexOf(host) > -1) {
       this.table.clear();
       this.hideSidebar();
+      this.emit("store-objects-cleared");
     }
   },