@Test
    public void testIssue() throws ParseException {
        assertEquals("feature.0", new RankingExpression("feature.0").toString());
        assertEquals("if (1 > 2, 3, 4) + feature(arg1).out.out",
                     new RankingExpression("if ( 1 > 2 , 3 , 4 ) + feature ( arg1 ) . out.out").toString());
    }
@author Simon Thoresen Hult
@author bratseth
searchlib/src/test/java/com/yahoo/searchlib/rankingexpression/RankingExpressionTestCase.java