Issue 4394 - Create a filter class for element hiding emulation filters [WIP]

test/filterClasses.js

Index: test/filterClasses.js
===================================================================
--- a/test/filterClasses.js
+++ b/test/filterClasses.js
@@ -15,17 +15,17 @@
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
 let {
   Filter, InvalidFilter, CommentFilter, ActiveFilter, RegExpFilter,
   BlockingFilter, WhitelistFilter, ElemHideBase, ElemHideFilter,
-  ElemHideException, CSSPropertyFilter
+  ElemHideException, ElemHideEmulationFilter
 } = require("../lib/filterClasses");
 
 function serializeFilter(filter)
 {
   // Filter serialization only writes out essential properties, need to do a full serialization here
   let result = [];
   result.push("text=" + filter.text);
   if (filter instanceof InvalidFilter)
@@ -73,19 +73,19 @@
       }
     }
     else if (filter instanceof ElemHideBase)
     {
       if (filter instanceof ElemHideFilter)
         result.push("type=elemhide");
       else if (filter instanceof ElemHideException)
         result.push("type=elemhideexception");
-      else if (filter instanceof CSSPropertyFilter)
+      else if (filter instanceof ElemHideEmulationFilter)
       {
-        result.push("type=cssrule");
+        result.push("type=elemhideemulation");
         result.push("prefix=" + (filter.selectorPrefix || ""));
         result.push("regexp=" + filter.regexpString);
         result.push("suffix=" + (filter.selectorSuffix || ""));
       }
 
       result.push("selectorDomain=" + (filter.selectorDomain || ""));
       result.push("selector=" + filter.selector);
     }
@@ -106,17 +106,17 @@
   }
 
   function addProperty(prop, value)
   {
     if (!(prop in hasProperty))
       expected.push(prop + "=" + value);
   }
 
-  if (type == "whitelist" || type == "filterlist" || type == "elemhide" || type == "elemhideexception" || type == "cssrule")
+  if (type == "whitelist" || type == "filterlist" || type == "elemhide" || type == "elemhideexception" || type == "elemhideemulation")
   {
     addProperty("disabled", "false");
     addProperty("lastHit", "0");
     addProperty("hitCount", "0");
   }
   if (type == "whitelist" || type == "filterlist")
   {
     addProperty("contentType", 0x7FFFFFFF & ~(
@@ -128,22 +128,22 @@
     addProperty("thirdParty", "null");
     addProperty("domains", "");
     addProperty("sitekeys", "");
   }
   if (type == "filterlist")
   {
     addProperty("collapse", "null");
   }
-  if (type == "elemhide" || type == "elemhideexception" || type == "cssrule")
+  if (type == "elemhide" || type == "elemhideexception" || type == "elemhideemulation")
   {
     addProperty("selectorDomain", "");
     addProperty("domains", "");
   }
-  if (type == "cssrule")
+  if (type == "elemhideemulation")
   {
     addProperty("regexp", "");
     addProperty("prefix", "");
     addProperty("suffix", "");
   }
 }
 
 function compareFilter(test, text, expected, postInit)
@@ -185,17 +185,17 @@
   test.equal(typeof CommentFilter, "function", "typeof CommentFilter");
   test.equal(typeof ActiveFilter, "function", "typeof ActiveFilter");
   test.equal(typeof RegExpFilter, "function", "typeof RegExpFilter");
   test.equal(typeof BlockingFilter, "function", "typeof BlockingFilter");
   test.equal(typeof WhitelistFilter, "function", "typeof WhitelistFilter");
   test.equal(typeof ElemHideBase, "function", "typeof ElemHideBase");
   test.equal(typeof ElemHideFilter, "function", "typeof ElemHideFilter");
   test.equal(typeof ElemHideException, "function", "typeof ElemHideException");
-  test.equal(typeof CSSPropertyFilter, "function", "typeof CSSPropertyFilter");
+  test.equal(typeof ElemHideEmulationFilter, "function", "typeof ElemHideEmulationFilter");
 
   test.done();
 };
 
 exports.testComments = function(test)
 {
   compareFilter(test, "!asdf", ["type=comment", "text=!asdf"]);
   compareFilter(test, "!foo#bar", ["type=comment", "text=!foo#bar"]);
@@ -209,17 +209,17 @@
   compareFilter(test, "/??/", ["type=invalid", "text=/??/", "reason=filter_invalid_regexp"]);
   compareFilter(test, "asd$foobar", ["type=invalid", "text=asd$foobar", "reason=filter_unknown_option"]);
   compareFilter(test, "#dd(asd)(ddd)", ["type=invalid", "text=#dd(asd)(ddd)", "reason=filter_elemhide_duplicate_id"]);
   compareFilter(test, "#*", ["type=invalid", "text=#*", "reason=filter_elemhide_nocriteria"]);
 
   function compareCSSRule(domains)
   {
     let filterText = domains + "##[-abp-properties='abc']";
-    compareFilter(test, filterText, ["type=invalid", "text=" + filterText, "reason=filter_cssproperty_nodomain"]);
+    compareFilter(test, filterText, ["type=invalid", "text=" + filterText, "reason=filter_elemhideemulation_nodomain"]);
   }
   compareCSSRule("");
   compareCSSRule("~foo.com");
   compareCSSRule("~foo.com,~bar.com");
   compareCSSRule("foo");
   compareCSSRule("~foo.com,bar");
 
   test.done();
@@ -323,23 +323,23 @@
   compareFilter(test, "foo#@ddd", ["type=elemhideexception", "text=foo#@ddd", "selectorDomain=foo", "selector=ddd", "domains=FOO"]);
   compareFilter(test, "foo,bar#@ddd", ["type=elemhideexception", "text=foo,bar#@ddd", "selectorDomain=foo,bar", "selector=ddd", "domains=BAR|FOO"]);
   compareFilter(test, "foo,~bar#@ddd", ["type=elemhideexception", "text=foo,~bar#@ddd", "selectorDomain=foo", "selector=ddd", "domains=FOO|~BAR"]);
   compareFilter(test, "foo,~baz,bar#@ddd", ["type=elemhideexception", "text=foo,~baz,bar#@ddd", "selectorDomain=foo,bar", "selector=ddd", "domains=BAR|FOO|~BAZ"]);
 
   test.done();
 };
 
-exports.testCSSPropertyFilters = function(test)
+exports.testElemHideEmulationFilters = function(test)

[Felix Dahlke, 2016/09/23 16:41:59]

I'll add to these tests to make sure the parsing code works fine, but first I
wanted to finish this WIP review.

 {
   // Check valid domain combinations
-  compareFilter(test, "foo.com##[-abp-properties='abc']", ["type=cssrule", "text=foo.com##[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM", "regexp=abc"]);
-  compareFilter(test, "foo.com,~bar.com##[-abp-properties='abc']", ["type=cssrule", "text=foo.com,~bar.com##[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM|~BAR.COM", "regexp=abc"]);
-  compareFilter(test, "foo.com,~bar##[-abp-properties='abc']", ["type=cssrule", "text=foo.com,~bar##[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM|~BAR", "regexp=abc"]);
-  compareFilter(test, "~foo.com,bar.com##[-abp-properties='abc']", ["type=cssrule", "text=~foo.com,bar.com##[-abp-properties='abc']", "selectorDomain=bar.com", "selector=[-abp-properties='abc']", "domains=BAR.COM|~FOO.COM", "regexp=abc"]);
+  compareFilter(test, "foo.com##[-abp-properties='abc']", ["type=elemhideemulation", "text=foo.com##[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM", "regexp=abc"]);
+  compareFilter(test, "foo.com,~bar.com##[-abp-properties='abc']", ["type=elemhideemulation", "text=foo.com,~bar.com##[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM|~BAR.COM", "regexp=abc"]);
+  compareFilter(test, "foo.com,~bar##[-abp-properties='abc']", ["type=elemhideemulation", "text=foo.com,~bar##[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM|~BAR", "regexp=abc"]);
+  compareFilter(test, "~foo.com,bar.com##[-abp-properties='abc']", ["type=elemhideemulation", "text=~foo.com,bar.com##[-abp-properties='abc']", "selectorDomain=bar.com", "selector=[-abp-properties='abc']", "domains=BAR.COM|~FOO.COM", "regexp=abc"]);
 
   compareFilter(test, "##[-abp-properties='']", ["type=elemhide", "text=##[-abp-properties='']", "selector=[-abp-properties='']"]);
   compareFilter(test, "foo.com#@#[-abp-properties='abc']", ["type=elemhideexception", "text=foo.com#@#[-abp-properties='abc']", "selectorDomain=foo.com", "selector=[-abp-properties='abc']", "domains=FOO.COM"]);
-  compareFilter(test, "foo.com##aaa [-abp-properties='abc'] bbb", ["type=cssrule", "text=foo.com##aaa [-abp-properties='abc'] bbb", "selectorDomain=foo.com", "selector=aaa [-abp-properties='abc'] bbb", "domains=FOO.COM", "prefix=aaa ", "regexp=abc", "suffix= bbb"]);
-  compareFilter(test, "foo.com##[-abp-properties='|background-image: url(data:*)']", ["type=cssrule", "text=foo.com##[-abp-properties='|background-image: url(data:*)']", "selectorDomain=foo.com", "selector=[-abp-properties='|background-image: url(data:*)']", "domains=FOO.COM", "regexp=^background\\-image\\:\\ url\\(data\\:.*\\)"]);
+  compareFilter(test, "foo.com##aaa [-abp-properties='abc'] bbb", ["type=elemhideemulation", "text=foo.com##aaa [-abp-properties='abc'] bbb", "selectorDomain=foo.com", "selector=aaa [-abp-properties='abc'] bbb", "domains=FOO.COM", "prefix=aaa ", "regexp=abc", "suffix= bbb"]);
+  compareFilter(test, "foo.com##[-abp-properties='|background-image: url(data:*)']", ["type=elemhideemulation", "text=foo.com##[-abp-properties='|background-image: url(data:*)']", "selectorDomain=foo.com", "selector=[-abp-properties='|background-image: url(data:*)']", "domains=FOO.COM", "regexp=^background\\-image\\:\\ url\\(data\\:.*\\)"]);
 
   test.done();
 };