SumFunctionTest.java

/*
 * 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
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package org.apache.jmeter.functions;

import static org.junit.Assert.assertEquals;

import java.util.Collection;
import java.util.LinkedList;

import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.junit.JMeterTestCase;
import org.apache.jmeter.threads.JMeterContext;
import org.apache.jmeter.threads.JMeterContextService;
import org.apache.jmeter.threads.JMeterVariables;
import org.junit.Before;
import org.junit.Test;

public class SumFunctionTest extends JMeterTestCase {

    private JMeterContext jmctx = null;
    private JMeterVariables vars = null;
    
    @Before
    public void setUp() {
        jmctx = JMeterContextService.getContext();
        jmctx.setVariables(new JMeterVariables());
        vars = jmctx.getVariables();
    }
    
    @Test
    public void sumTest() throws Exception {
        String maxIntVal = Integer.toString(Integer.MAX_VALUE);
        String minIntVal = Integer.toString(Integer.MIN_VALUE);

        { // prevent accidental use of is below
            IntSum is = new IntSum();
            checkInvalidParameterCounts(is, 2);
            checkSum(is,"3", new String[]{"1","2"});
            checkSumNoVar(is,"3", new String[]{"1","2"});
            checkSum(is,"1", new String[]{"-1","1","1","1","-2","1"});
            checkSumNoVar(is,"1", new String[]{"-1","1","1","1","-2","1"});
            checkSumNoVar(is,"-1", new String[]{"-1","1","1","1","-2","-1"});
            checkSum(is,maxIntVal, new String[]{maxIntVal,"0"});
            checkSum(is,minIntVal, new String[]{maxIntVal,"1"}); // wrap-round check
        }

        LongSum ls = new LongSum();
        checkInvalidParameterCounts(ls, 2);
        checkSum(ls,"3", new String[]{"1","2"});
        checkSum(ls,"1", new String[]{"-1","1","1","1","-1","0"});
        checkSumNoVar(ls,"3", new String[]{"1","2"});
        checkSumNoVar(ls,"1", new String[]{"-1","1","1","1","-1","0"});
        checkSumNoVar(ls,"0", new String[]{"-1","1","1","1","-1","-1"});
        String maxIntVal_1 = Long.toString(1+(long)Integer.MAX_VALUE);
        checkSum(ls,maxIntVal, new String[]{maxIntVal,"0"});
        checkSum(ls,maxIntVal_1, new String[]{maxIntVal,"1"}); // no wrap-round check
        String maxLongVal = Long.toString(Long.MAX_VALUE);
        String minLongVal = Long.toString(Long.MIN_VALUE);
        checkSum(ls,maxLongVal, new String[]{maxLongVal,"0"});
        checkSum(ls,minLongVal, new String[]{maxLongVal,"1"}); // wrap-round check
    }
    
    // Perform a sum and check the results
    private void checkSum(AbstractFunction func, String value, String [] addends)  throws Exception {
        Collection<CompoundVariable> parms = new LinkedList<>();
        for (String addend : addends) {
            parms.add(new CompoundVariable(addend));
        }
        parms.add(new CompoundVariable("Result"));
        func.setParameters(parms);
        assertEquals(value, func.execute(null,null));
        assertEquals(value, vars.getObject("Result"));       
    }
    
    // Perform a sum and check the results
    private void checkSumNoVar(AbstractFunction func, String value, String [] addends)  throws Exception {
        Collection<CompoundVariable> parms = new LinkedList<>();
        for (String addend : addends) {
            parms.add(new CompoundVariable(addend));
        }
        func.setParameters(parms);
        assertEquals(value,func.execute(null,null));
    }
}