+ QUnit.test( 'sessionId', function ( assert ) {
+ var result = mw.user.sessionId(),
+ result2 = mw.user.sessionId();
+ assert.equal( typeof result, 'string', 'type' );
+ assert.equal( $.trim( result ), result, 'no leading or trailing whitespace' );
+ assert.equal( result2, result, 'retained' );