Issue 4684 - Allow { and } in attribute and property selectors

test/filterClasses.js

Index: test/filterClasses.js
===================================================================
--- a/test/filterClasses.js
+++ b/test/filterClasses.js
@@ -374,8 +374,37 @@
   {
     let filter = Filter.fromText(filterText);
     test.ok(filter instanceof InvalidFilter);
     test.equal(filter.reason, "filter_invalid_domain");
   }
 
   test.done();
 };
+
+exports.testCssRuleInjection = function(test)
+{
+  compareFilter(test, "###foo{color: red}",
+                ["type=filterlist",
+                 "text=###foo{color: red}",
+                 "regexp=\\#\\#\\#foo\\{color\\:\\ red\\}"]);
+  compareFilter(test, "foo.com##[-abp-properties='/margin: [3-4]{2}/']",
+                ["type=elemhideemulation",
+                 "text=foo.com##[-abp-properties='/margin: [3-4]{2}/']",
+                 "selectorDomain=foo.com",
+                 "selector=[-abp-properties='/margin: [3-4]{2}/']",
+                 "domains=FOO.COM"]);
+  compareFilter(test, "foo.com##[foo~='{bar}']",
+                ["type=elemhide",
+                 "text=foo.com##[foo~='{bar}']",
+                 "selectorDomain=foo.com",
+                 "selector=[foo~='{bar}']",
+                 "domains=FOO.COM"]);
+  compareFilter(test, "foo.com##''{color: red}''",
+                ["type=filterlist",
+                 "text=foo.com##''{color: red}''",
+                 "regexp=foo\\.com\\#\\#\\'\\'\\{color\\:\\ red\\}\\'\\'"]);
+  compareFilter(test, "foo.com##[foo='']{color: red}[foo='']",
+                ["type=filterlist",
+                 "text=foo.com##[foo='']{color: red}[foo='']",
+                 "regexp=foo\\.com\\#\\#\\[foo\\=\\'\\'\\]\\{color\\:\\ red\\}\\[foo\\=\\'\\'\\]"]);
+  test.done();
+};