Issue 6859 - Create special subscription group for snippet filters

test/filterStorage.js

Index: test/filterStorage.js
===================================================================
--- a/test/filterStorage.js
+++ b/test/filterStorage.js
@@ -205,17 +205,17 @@
 };
 
 exports.testAddingFilters = function(test)
 {
   let subscription1 = Subscription.fromURL("~blocking");
   subscription1.defaults = ["blocking"];
 
   let subscription2 = Subscription.fromURL("~exceptions");
-  subscription2.defaults = ["whitelist", "elemhide"];
+  subscription2.defaults = ["whitelist", "elemhide", "snippet"];
 
   let subscription3 = Subscription.fromURL("~other");
 
   FilterStorage.addSubscription(subscription1);
   FilterStorage.addSubscription(subscription2);
   FilterStorage.addSubscription(subscription3);
 
   let changes = [];
@@ -245,40 +245,45 @@
   test.deepEqual(changes, ["filter.added foo##bar"], "Received changes");
 
   changes = [];
   FilterStorage.addFilter(Filter.fromText("foo#@#bar"));
   compareFiltersList(test, "Adding hiding exception", [["foo"], ["@@bar", "foo##bar", "foo#@#bar"], []]);
   test.deepEqual(changes, ["filter.added foo#@#bar"], "Received changes");
 
   changes = [];
+  FilterStorage.addFilter(Filter.fromText("example.com#$#foo"));
+  compareFiltersList(test, "Adding snippet script", [["foo"], ["@@bar", "foo##bar", "foo#@#bar", "example.com#$#foo"], []]);
+  test.deepEqual(changes, ["filter.added example.com#$#foo"], "Received changes");
+
+  changes = [];
   FilterStorage.addFilter(Filter.fromText("!foobar"));
-  compareFiltersList(test, "Adding comment", [["foo"], ["@@bar", "foo##bar", "foo#@#bar"], ["!foobar"]]);
+  compareFiltersList(test, "Adding comment", [["foo"], ["@@bar", "foo##bar", "foo#@#bar", "example.com#$#foo"], ["!foobar"]]);
   test.deepEqual(changes, ["filter.added !foobar"], "Received changes");
 
   changes = [];
   FilterStorage.addFilter(Filter.fromText("foo"));
-  compareFiltersList(test, "Adding already added filter", [["foo"], ["@@bar", "foo##bar", "foo#@#bar"], ["!foobar"]]);
+  compareFiltersList(test, "Adding already added filter", [["foo"], ["@@bar", "foo##bar", "foo#@#bar", "example.com#$#foo"], ["!foobar"]]);
   test.deepEqual(changes, [], "Received changes");
 
   subscription1.disabled = true;
 
   changes = [];
   FilterStorage.addFilter(Filter.fromText("foo"));
-  compareFiltersList(test, "Adding filter already in a disabled subscription", [["foo"], ["@@bar", "foo##bar", "foo#@#bar"], ["!foobar", "foo"]]);
+  compareFiltersList(test, "Adding filter already in a disabled subscription", [["foo"], ["@@bar", "foo##bar", "foo#@#bar", "example.com#$#foo"], ["!foobar", "foo"]]);
   test.deepEqual(changes, ["filter.added foo"], "Received changes");
 
   changes = [];
   FilterStorage.addFilter(Filter.fromText("foo"), subscription1);
-  compareFiltersList(test, "Adding filter to an explicit subscription", [["foo", "foo"], ["@@bar", "foo##bar", "foo#@#bar"], ["!foobar", "foo"]]);
+  compareFiltersList(test, "Adding filter to an explicit subscription", [["foo", "foo"], ["@@bar", "foo##bar", "foo#@#bar", "example.com#$#foo"], ["!foobar", "foo"]]);
   test.deepEqual(changes, ["filter.added foo"], "Received changes");
 
   changes = [];
   FilterStorage.addFilter(Filter.fromText("!foobar"), subscription2, 0);
-  compareFiltersList(test, "Adding filter to an explicit subscription with position", [["foo", "foo"], ["!foobar", "@@bar", "foo##bar", "foo#@#bar"], ["!foobar", "foo"]]);
+  compareFiltersList(test, "Adding filter to an explicit subscription with position", [["foo", "foo"], ["!foobar", "@@bar", "foo##bar", "foo#@#bar", "example.com#$#foo"], ["!foobar", "foo"]]);
   test.deepEqual(changes, ["filter.added !foobar"], "Received changes");
 
   test.done();
 };
 
 exports.testRemovingFilters = function(test)
 {
   let subscription1 = Subscription.fromURL("~foo");