assert.strictEqual( $( caFoo ).find( 'span' ).length, 1, 'A <span> element should be added for porlets with vectorTabs class.' );
addedAfter = mw.util.addPortletLink( 'p-test-tb', '#', 'After foo', 'post-foo', 'After foo', null, $( tbRL ) );
assert.strictEqual( $( caFoo ).find( 'span' ).length, 1, 'A <span> element should be added for porlets with vectorTabs class.' );
addedAfter = mw.util.addPortletLink( 'p-test-tb', '#', 'After foo', 'post-foo', 'After foo', null, $( tbRL ) );