/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.epl.expression.ops;
import com.espertech.esper.epl.expression.core.ExprNodeUtility;
import com.espertech.esper.supportunit.epl.SupportExprNode;
import com.espertech.esper.util.support.SupportExprValidationContextFactory;
import junit.framework.TestCase;
public class TestExprArrayNode extends TestCase {
private ExprArrayNode[] arrayNodes;
public void setUp() throws Exception {
arrayNodes = new ExprArrayNode[4];
arrayNodes[0] = new ExprArrayNode();
// no coercion array
arrayNodes[1] = new ExprArrayNode();
arrayNodes[1].addChildNode(new SupportExprNode(2));
arrayNodes[1].addChildNode(new SupportExprNode(3));
// coercion
arrayNodes[2] = new ExprArrayNode();
arrayNodes[2].addChildNode(new SupportExprNode(1.5D));
arrayNodes[2].addChildNode(new SupportExprNode(1));
// mixed types
arrayNodes[3] = new ExprArrayNode();
arrayNodes[3].addChildNode(new SupportExprNode("a"));
arrayNodes[3].addChildNode(new SupportExprNode(1));
for (int i = 0; i < arrayNodes.length; i++) {
arrayNodes[i].validate(SupportExprValidationContextFactory.makeEmpty());
}
}
public void testGetType() throws Exception {
assertEquals(Object[].class, arrayNodes[0].getType());
assertEquals(Integer[].class, arrayNodes[1].getType());
assertEquals(Double[].class, arrayNodes[2].getType());
assertEquals(Object[].class, arrayNodes[3].getType());
}
public void testEvaluate() throws Exception {
Object result = arrayNodes[0].evaluate(null, true, null);
assertEquals(Object[].class, result.getClass());
assertEquals(0, ((Object[]) result).length);
result = arrayNodes[1].evaluate(null, true, null);
assertEquals(Integer[].class, result.getClass());
assertEquals(2, ((Integer[]) result).length);
assertEquals(2, (int) ((Integer[]) result)[0]);
assertEquals(3, (int) ((Integer[]) result)[1]);
result = arrayNodes[2].evaluate(null, true, null);
assertEquals(Double[].class, result.getClass());
assertEquals(2, ((Double[]) result).length);
assertEquals(1.5, (double) ((Double[]) result)[0]);
assertEquals(1.0, (double) ((Double[]) result)[1]);
result = arrayNodes[3].evaluate(null, true, null);
assertEquals(Object[].class, result.getClass());
assertEquals(2, ((Object[]) result).length);
assertEquals("a", ((Object[]) result)[0]);
assertEquals(1, ((Object[]) result)[1]);
}
public void testToExpressionString() throws Exception {
assertEquals("{}", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(arrayNodes[0]));
assertEquals("{2,3}", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(arrayNodes[1]));
assertEquals("{1.5,1}", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(arrayNodes[2]));
assertEquals("{\"a\",1}", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(arrayNodes[3]));
}
public void testEqualsNode() {
assertTrue(arrayNodes[0].equalsNode(arrayNodes[1], false));
assertFalse(arrayNodes[0].equalsNode(new SupportExprNode(null), false));
}
}