Bug 1362937 - [Form Autofill] Handle undefined profile fields in autocomplete filtering. r=MattN

MozReview-Commit-ID: JvETH3KBjxY

--HG--
extra : rebase_source : 8c0b4087e4ec3f323bcbd1d3acbd0153bca31164

browser/extensions/formautofill/ProfileStorage.jsm

@@ -284,7 +284,7 @@ ProfileStorage.prototype = {
         return !!name;
       }
 
-      return name.toLowerCase().startsWith(lcSearchString);
+      return name && name.toLowerCase().startsWith(lcSearchString);
     });
 
     log.debug("getByFilter: Returning", result.length, "result(s)");

browser/extensions/formautofill/test/unit/test_profileStorage.js

@@ -143,6 +143,11 @@ add_task(function* test_getByFilter() {
   filter = {info: {fieldName: "street-address"}, searchString: ".*"};
   profiles = profileStorage.getByFilter(filter);
   do_check_eq(profiles.length, 0);
+
+  // Prevent broken while searching the property that is not existed.
+  filter = {info: {fieldName: "tel"}, searchString: "1"};
+  profiles = profileStorage.getByFilter(filter);
+  do_check_eq(profiles.length, 0);
 });
 
 add_task(function* test_add() {