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  package org.apache.cayenne.exp.parser;
  
  import org.apache.cayenne.exp.Expression;
  import org.apache.cayenne.exp.ExpressionFactory;
  import org.apache.cayenne.testdo.testmap.Artist;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  /**
   * @since 4.0
   */
  public class ASTUpperTest {
  
      @Test
      public void testEvaluateUpper() throws Exception {
          ASTObjPath path = new ASTObjPath("artistName");
          ASTUpper upper = new ASTUpper(path);
  
          Artist a = new Artist();
          a.setArtistName("abcDEFx981");
  
          Object res = upper.evaluateNode(a);
          assertTrue(res instanceof String);
          assertEquals("ABCDEFX981", res);
      }
  
      @Test
      public void parseTest() throws Exception {
          String expString = "upper(xyz)";
          Expression exp = ExpressionFactory.exp(expString);
  
          assertTrue(exp instanceof ASTUpper);
          String toString = exp.toString();
          assertEquals(expString, toString);
      }
  
  }
  