TestLoopController.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.control;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;

import java.util.HashMap;
import java.util.Map;

import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.engine.util.ReplaceStringWithFunctions;
import org.apache.jmeter.junit.JMeterTestCase;
import org.apache.jmeter.junit.stubs.TestSampler;
import org.apache.jmeter.samplers.Sampler;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.property.JMeterProperty;
import org.apache.jmeter.testelement.property.StringProperty;
import org.apache.jmeter.threads.JMeterContext;
import org.apache.jmeter.threads.JMeterContextService;
import org.apache.jmeter.threads.JMeterVariables;
import org.junit.Test;

public class TestLoopController extends JMeterTestCase {

        @Test
        public void testProcessing() throws Exception {
            GenericController controller = new GenericController();
            GenericController sub_1 = new GenericController();
            sub_1.addTestElement(new TestSampler("one"));
            sub_1.addTestElement(new TestSampler("two"));
            controller.addTestElement(sub_1);
            controller.addTestElement(new TestSampler("three"));
            LoopController sub_2 = new LoopController();
            sub_2.setLoops(3);
            GenericController sub_3 = new GenericController();
            sub_2.addTestElement(new TestSampler("four"));
            sub_3.addTestElement(new TestSampler("five"));
            sub_3.addTestElement(new TestSampler("six"));
            sub_2.addTestElement(sub_3);
            sub_2.addTestElement(new TestSampler("seven"));
            controller.addTestElement(sub_2);
            String[] order = new String[] { "one", "two", "three", "four", "five", "six", "seven", "four", "five",
                    "six", "seven", "four", "five", "six", "seven" };
            int counter = 15;
            controller.setRunningVersion(true);
            sub_1.setRunningVersion(true);
            sub_2.setRunningVersion(true);
            sub_3.setRunningVersion(true);
            controller.initialize();
            for (int i = 0; i < 2; i++) {
                assertEquals(15, counter);
                counter = 0;
                TestElement sampler = null;
                while ((sampler = controller.next()) != null) {
                    assertEquals(order[counter++], sampler.getName());
                }
            }
        }

        @Test
        public void testLoopZeroTimes() throws Exception {
            LoopController loop = new LoopController();
            loop.setLoops(0);
            loop.addTestElement(new TestSampler("never run"));
            loop.initialize();
            assertNull(loop.next());
        }

        @Test
        public void testInfiniteLoop() throws Exception {
            LoopController loop = new LoopController();
            loop.setLoops(LoopController.INFINITE_LOOP_COUNT);
            loop.addTestElement(new TestSampler("never run"));
            loop.setRunningVersion(true);
            loop.initialize();
            for (int i = 0; i < 42; i++) {
                assertNotNull(loop.next());
            }
        }
            
        @Test
        public void testBug54467() throws Exception {
            JMeterContext jmctx = JMeterContextService.getContext();
            LoopController loop = new LoopController();
            Map<String, String> variables = new HashMap<>();
            ReplaceStringWithFunctions transformer = new ReplaceStringWithFunctions(new CompoundVariable(), variables);
            jmctx.setVariables(new JMeterVariables());

            StringProperty prop = new StringProperty(LoopController.LOOPS,"${__Random(1,12,)}");
            JMeterProperty newProp = transformer.transformValue(prop);
            newProp.setRunningVersion(true);
            
            loop.setProperty(newProp);
            loop.addTestElement(new TestSampler("random run"));
            loop.setRunningVersion(true);
            loop.initialize();
            int loops = loop.getLoops();
            for (int i = 0; i < loops; i++) {
                Sampler s = loop.next();
                assertNotNull(s);
            }
            assertNull(loop.next());    
        }
}