add useful comments about portlet ids

comments comes from r95571 commit log by Krinkle

diff --git a/tests/qunit/suites/resources/mediawiki/mediawiki.util.test.js b/tests/qunit/suites/resources/mediawiki/mediawiki.util.test.js
index 12c14ca..da18f02 100644 (file)
--- a/tests/qunit/suites/resources/mediawiki/mediawiki.util.test.js
+++ b/tests/qunit/suites/resources/mediawiki/mediawiki.util.test.js
@@ -142,6 +142,13 @@ test( '$content', function() {
        strictEqual( mw.util.$content.length, 1, 'mw.util.$content must have length of 1' );
 });
 
+
+/**
+ * Portlet names are prefixed with 'p-test' to avoid conflict with core
+ * when running the test suite under a wiki page.
+ * Previously, test elements where invisible to the selector since only
+ * one element can have a given id. 
+ */
 test( 'addPortletLink', function() {
        expect(7);