Issue 4055 - Test ElemHide.getSelectorsFordomain

test/elemHide.js

Index: test/elemHide.js
diff --git a/test/elemHide.js b/test/elemHide.js
new file mode 100644
index 0000000000000000000000000000000000000000..69f400afdae411c35963850496adf70fe4749f42
--- /dev/null
+++ b/test/elemHide.js
@@ -0,0 +1,133 @@
+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-2016 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+"use strict";
+
+GLOBAL.Ci = { };
+GLOBAL.Cu = {
+  import: function() { }
+};
+
+let {ElemHide} = require("elemHide");
+let {Filter} = require("filterClasses");
+
+exports.testGetSelectorsForDomain = function(test)
+{
+  function fromText(f)
+  {
+    return (filterText) => ElemHide[f](Filter.fromText(filterText));
+  }
+  let addFilter = fromText("add");
+  let removeFilter = fromText("remove");
+
+  function selectorsEqual(domain, selectors, specificOnly)
+  {
+    test.deepEqual(ElemHide.getSelectorsForDomain(domain, specificOnly),
+                   selectors);
+  }
+
+  selectorsEqual("", []);
+
+  addFilter("~foo.example.com,example.com##foo");
+  selectorsEqual("foo.example.com", []);
+  selectorsEqual("example.com", ["foo"]);
+  selectorsEqual("com", []);
+  selectorsEqual("", []);
+
+  addFilter("foo.example.com##turnip");
+  selectorsEqual("foo.example.com", ["turnip"]);
+  selectorsEqual("example.com", ["foo"]);
+  selectorsEqual("com", []);
+  selectorsEqual("", []);
+
+  addFilter("example.com#@#foo");
+  selectorsEqual("foo.example.com", ["turnip"]);
+  selectorsEqual("example.com", []);
+  selectorsEqual("com", []);
+  selectorsEqual("", []);
+
+  addFilter("com##bar");
+  selectorsEqual("foo.example.com", ["turnip", "bar"]);
+  selectorsEqual("example.com", ["bar"]);
+  selectorsEqual("com", ["bar"]);
+  selectorsEqual("", []);
+
+  addFilter("example.com#@#bar");
+  selectorsEqual("foo.example.com", ["turnip"]);
+  selectorsEqual("example.com", []);
+  selectorsEqual("com", ["bar"]);
+  selectorsEqual("", []);
+
+  removeFilter("example.com#@#foo");
+  selectorsEqual("foo.example.com", ["turnip"]);
+  selectorsEqual("example.com", ["foo"]);
+  selectorsEqual("com", ["bar"]);
+  selectorsEqual("", []);
+
+  removeFilter("example.com#@#bar");
+  selectorsEqual("foo.example.com", ["turnip", "bar"]);
+  selectorsEqual("example.com", ["foo", "bar"]);
+  selectorsEqual("com", ["bar"]);
+  selectorsEqual("", []);
+
+  addFilter("##generic");
+  selectorsEqual("foo.example.com", ["turnip", "bar", "generic"]);
+  selectorsEqual("example.com", ["foo", "bar", "generic"]);
+  selectorsEqual("com", ["bar", "generic"]);
+  selectorsEqual("", ["generic"]);
+  selectorsEqual("foo.example.com", ["turnip", "bar"], true);
+  selectorsEqual("example.com", ["foo", "bar"], true);
+  selectorsEqual("com", ["bar"], true);
+  selectorsEqual("", [], true);
+  removeFilter("##generic");
+
+  addFilter("~adblockplus.org##example");
+  selectorsEqual("adblockplus.org", []);
+  selectorsEqual("", ["example"]);
+  selectorsEqual("foo.example.com", ["turnip", "bar", "example"]);
+  selectorsEqual("foo.example.com", ["turnip", "bar"], true);
+  removeFilter("~adblockplus.org##example");
+
+  removeFilter("~foo.example.com,example.com##foo");
+  selectorsEqual("foo.example.com", ["turnip", "bar"]);
+  selectorsEqual("example.com", ["bar"]);
+  selectorsEqual("com", ["bar"]);
+  selectorsEqual("", []);
+
+  removeFilter("com##bar");
+  selectorsEqual("foo.example.com", ["turnip"]);
+  selectorsEqual("example.com", []);
+  selectorsEqual("com", []);
+  selectorsEqual("", []);
+
+  removeFilter("foo.example.com##turnip");
+  selectorsEqual("foo.example.com", []);
+  selectorsEqual("example.com", []);
+  selectorsEqual("com", []);
+  selectorsEqual("", []);
+
+  // As a consession for performance we don't handle the case of more than one
+  // identical rule being added, then one of them removed. Ideally the final
+  // result here would be ["dupe"] instead of [].
+  addFilter("example.com##dupe");
+  addFilter("example.com##dupe");
+  selectorsEqual("example.com", ["dupe"]);
+  removeFilter("example.com##dupe");
+  selectorsEqual("example.com", []);
+
+  test.done();
+};