[JEXL-130] Ternary Conditional fails for Object values

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1, 2.1.1
• Fix Version/s: 2.1.2, 3.0
• Assignee: Henri Biestro
• Reporter: William Bakker
• Created: 09/Mar/12 10:51
• Updated: 21/Mar/16 14:10
• Resolved: 09/Mar/12 14:52

Description

The documentation states on http://commons.apache.org/jexl/reference/syntax.html#Operators :

The usual ternary conditional operator condition ? if_true : if_false operator can be used as well as the
abbreviation value ?: if_false which returns the value if its evaluation is defined, non-null and non-false

For object values however, it seems that this definition no longer holds in 2.1 and higher.

The following unittests run successfully in 2.0.1, but the test "ternaryConditional_mapContainsObject_shouldReturnObject" fails in 2.1 and 2.1.1.

import org.apache.commons.jexl2.*;
import org.junit.*;

public class JexlTernaryConditionalTest
{
    @Test
    public void ternaryConditional_mapContainsString_shouldReturnString()
    {
        String myName = "Test.Name";
        Object myValue = "Test.Value";

        JexlEngine myJexlEngine = new JexlEngine();
        MapContext myMapContext = new MapContext();
        myMapContext.set(myName, myValue);

        Object myObjectWithTernaryConditional = myJexlEngine.createScript(myName + "?:null").execute(myMapContext);
        Assert.assertEquals(myValue, myObjectWithTernaryConditional);
    }

    @Test
    public void ternaryConditional_mapContainsObject_shouldReturnObject()
    {
        String myName = "Test.Name";
        Object myValue = new Object();

        JexlEngine myJexlEngine = new JexlEngine();
        MapContext myMapContext = new MapContext();
        myMapContext.set(myName, myValue);

        Object myObjectWithTernaryConditional = myJexlEngine.createScript(myName + "?:null").execute(myMapContext);
        Assert.assertEquals(myValue, myObjectWithTernaryConditional);
    }
}