src/test/java/org/apache/commons/ognl/test/LambdaExpressionTest.java

/*
 * $Id$
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.commons.ognl.test;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;

@RunWith(value = Parameterized.class)
public class LambdaExpressionTest
    extends OgnlTestCase
{

    private static final Object[][] TESTS = {
        // Lambda expressions
        { null, "#a=:[33](20).longValue().{0}.toArray().length", new Integer( 33 ) },
        { null, "#fact=:[#this<=1? 1 : #fact(#this-1) * #this], #fact(30)", new Integer( 1409286144 ) },
        { null, "#fact=:[#this<=1? 1 : #fact(#this-1) * #this], #fact(30L)", new Long( -8764578968847253504L ) },
        { null, "#fact=:[#this<=1? 1 : #fact(#this-1) * #this], #fact(30h)",
            new BigInteger( "265252859812191058636308480000000" ) },
        { null, "#bump = :[ #this.{ #this + 1 } ], (#bump)({ 1, 2, 3 })",
            new ArrayList( Arrays.asList( new Integer( 2 ), new Integer( 3 ), new Integer( 4 ) ) ) },
        { null, "#call = :[ \"calling \" + [0] + \" on \" + [1] ], (#call)({ \"x\", \"y\" })", "calling x on y" },

    };

    /*
     * =================================================================== Public static methods
     * ===================================================================
     */
    @Parameters
    public static Collection<Object[]> data()
    {
        Collection<Object[]> data = new ArrayList<Object[]>(TESTS.length);
        for ( int i = 0; i < TESTS.length; i++ )
        {
            Object[] tmp = new Object[6];
            tmp[0] = TESTS[i][1];
            tmp[1] = TESTS[i][0];
            tmp[2] = TESTS[i][1];
            tmp[3] = TESTS[i][2];

            data.add( tmp );
        }
        return data;
    }

    /*
     * =================================================================== Constructors
     * ===================================================================
     */
    public LambdaExpressionTest( String name, Object root, String expressionString, Object expectedResult,
                                 Object setValue, Object expectedAfterSetResult )
    {
        super( name, root, expressionString, expectedResult, setValue, expectedAfterSetResult );
    }

    @Test

    @Override
    public void runTest()
        throws Exception
    {
        super.runTest();
    }
}