JMeter example source code file (TestSwitchController.java)

This example JMeter source code file (TestSwitchController.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - JMeter tags/keywords

exception, genericcontroller, genericcontroller, jmetervariables, loop, loop, match, string, string, switchcontroller, testsampler, testsampler, testswitchcontroller, util, var

The JMeter TestSwitchController.java source code

/*
 * 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.jmeter.control;

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.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;

public class TestSwitchController extends JMeterTestCase {
//      static {
//           LoggingManager.setPriority("DEBUG","jmeter");
//           LoggingManager.setTarget(new java.io.PrintWriter(System.out));
//      }

        public TestSwitchController(String name) {
            super(name);
        }

        // Get next sample and its name
        private String nextName(GenericController c) {
            Sampler s = c.next();
            String n;
            if (s == null) {
                return null;
            }
            n = s.getName();
            return n;
        }

        public void test() throws Exception {
            runSimpleTests("", "zero");
        }

        public void test0() throws Exception {
            runSimpleTests("0", "zero");
        }

        public void test1() throws Exception {
            runSimpleTests("1", "one");
            runSimpleTests("one", "one"); // Match by name
        }

        public void test2() throws Exception {
            runSimpleTests("2", "two");
            runSimpleTests("two", "two"); // Match by name
        }

        public void test3() throws Exception {
            runSimpleTests("3", "three");
            runSimpleTests("three", "three"); // Match by name
        }

        public void test4() throws Exception {
            runSimpleTests("4", "zero");
        }

        public void testX() throws Exception {
            runSimpleTests("X", null); // should not run any children
            runSimpleTest2("X", "one", "Default"); // should match the default entry
        }

        private void runSimpleTests(String cond, String exp) throws Exception {
            runSimpleTest(cond, exp);
            runSimpleTest2(cond, exp, "one");
        }

        /*
         *  Simple test with single Selection controller
         *  Generic Controller
         *  + Sampler "before"
         *  + Switch Controller
         *  + + Sampler "zero"
         *  + + Sampler "one"
         *  + + Sampler "two"
         *  + + Sampler "three"
         *  + Sampler "after"
         */
        private void runSimpleTest(String cond, String exp) throws Exception {
            GenericController controller = new GenericController();

            SwitchController switch_cont = new SwitchController();
            switch_cont.setSelection(cond);

            controller.addTestElement(new TestSampler("before"));
            controller.addTestElement(switch_cont);

            switch_cont.addTestElement(new TestSampler("zero"));
            switch_cont.addTestElement(new TestSampler("one"));
            switch_cont.addTestElement(new TestSampler("two"));
            switch_cont.addTestElement(new TestSampler("three"));

            controller.addTestElement(new TestSampler("after"));

            controller.initialize();

            for (int i = 1; i <= 3; i++) {
                assertEquals("Loop " + i, "before", nextName(controller));
                if (exp!=null){
                    assertEquals("Loop " + i, exp, nextName(controller));
                }
                assertEquals("Loop " + i, "after", nextName(controller));
                assertNull(nextName(controller));
            }
        }

        // Selection controller with two sub-controllers, but each has only 1
        // child
        /*
         * Controller
         * + Before
         * + Switch (cond)
         * + + zero
         * + + Controller sub_1
         * + + + one
         * + + two
         * + + Controller sub_2
         * + + + three
         * + After
         */
        private void runSimpleTest2(String cond, String exp, String sub1Name) throws Exception {
            GenericController controller = new GenericController();
            GenericController sub_1 = new GenericController();
            GenericController sub_2 = new GenericController();

            SwitchController switch_cont = new SwitchController();
            switch_cont.setSelection(cond);

            switch_cont.addTestElement(new TestSampler("zero"));
            switch_cont.addTestElement(sub_1);
            sub_1.addTestElement(new TestSampler("one"));
            sub_1.setName(sub1Name);

            switch_cont.addTestElement(new TestSampler("two"));

            switch_cont.addTestElement(sub_2);
            sub_2.addTestElement(new TestSampler("three"));
            sub_2.setName("three");

            controller.addTestElement(new TestSampler("before"));
            controller.addTestElement(switch_cont);
            controller.addTestElement(new TestSampler("after"));
            controller.initialize();
            for (int i = 1; i <= 3; i++) {
                assertEquals("Loop="+i,"before", nextName(controller));
                if (exp!=null){
                    assertEquals("Loop="+i,exp, nextName(controller));
                }
                assertEquals("Loop="+i,"after", nextName(controller));
                assertNull("Loop="+i,nextName(controller));
            }
        }

        public void testTest2() throws Exception {
            runTest2("", new String[] { "zero" });
            runTest2("0", new String[] { "zero" });
            runTest2("7", new String[] { "zero" });
            runTest2("5", new String[] { "zero" });
            runTest2("4", new String[] { "six" });
            runTest2("3", new String[] { "five" });
            runTest2("1", new String[] { "one", "two" });
            runTest2("2", new String[] { "three", "four" });
        }

        /*
         * Test: 
         * Before 
         * Selection Controller
         *  - zero (default)
         *  - simple controller 1
         *  - - one
         *  - - two
         *  - simple controller 2
         *  - - three
         *  - - four
         *  - five
         *  - six
         * After
         * 
         * cond  = Switch condition 
         * exp[] = expected results
         */
        private void runTest2(String cond, String exp[]) throws Exception {
            int loops = 3;
            LoopController controller = new LoopController();
            controller.setLoops(loops);
            controller.setContinueForever(false);
            GenericController sub_1 = new GenericController();
            GenericController sub_2 = new GenericController();

            SwitchController switch_cont = new SwitchController();
            switch_cont.setSelection(cond);

            switch_cont.addTestElement(new TestSampler("zero"));
            switch_cont.addTestElement(sub_1);
            sub_1.addTestElement(new TestSampler("one"));
            sub_1.addTestElement(new TestSampler("two"));

            switch_cont.addTestElement(sub_2);
            sub_2.addTestElement(new TestSampler("three"));
            sub_2.addTestElement(new TestSampler("four"));

            switch_cont.addTestElement(new TestSampler("five"));
            switch_cont.addTestElement(new TestSampler("six"));

            controller.addTestElement(new TestSampler("before"));
            controller.addTestElement(switch_cont);
            controller.addTestElement(new TestSampler("after"));
            controller.setRunningVersion(true);
            sub_1.setRunningVersion(true);
            sub_2.setRunningVersion(true);
            switch_cont.setRunningVersion(true);
            controller.initialize();
            for (int i = 1; i <= 3; i++) {
                assertEquals("Loop:" + i, "before", nextName(controller));
                for (int j = 0; j < exp.length; j++) {
                    assertEquals("Loop:" + i, exp[j], nextName(controller));
                }
                assertEquals("Loop:" + i, "after", nextName(controller));
            }
            assertNull("Loops:" + loops, nextName(controller));
        }
        
        /*
         * N.B. Requires ApacheJMeter_functions.jar to be on the classpath,
         * otherwise the function cannot be resolved.
        */
        public void testFunction() throws Exception {
            JMeterContext jmctx = JMeterContextService.getContext();
            Map<String, String> variables = new HashMap();
            ReplaceStringWithFunctions transformer = new ReplaceStringWithFunctions(new CompoundVariable(), variables);
            jmctx.setVariables(new JMeterVariables());
            JMeterVariables jmvars = jmctx.getVariables();
            jmvars.put("VAR", "100");
            StringProperty prop = new StringProperty(SwitchController.SWITCH_VALUE,"${__counter(TRUE,VAR)}");
            JMeterProperty newProp = transformer.transformValue(prop);
            newProp.setRunningVersion(true);
            
            GenericController controller = new GenericController();

            SwitchController switch_cont = new SwitchController();
            switch_cont.setProperty(newProp);

            controller.addTestElement(new TestSampler("before"));
            controller.addTestElement(switch_cont);

            switch_cont.addTestElement(new TestSampler("0"));
            switch_cont.addTestElement(new TestSampler("1"));
            switch_cont.addTestElement(new TestSampler("2"));
            switch_cont.addTestElement(new TestSampler("3"));

            controller.addTestElement(new TestSampler("after"));

            controller.initialize();

            assertEquals("100",jmvars.get("VAR"));
            
            for (int i = 1; i <= 3; i++) {
                assertEquals("Loop " + i, "before", nextName(controller));
                assertEquals("Loop " + i, ""+i, nextName(controller));
                assertEquals("Loop " + i, ""+i, jmvars.get("VAR"));
                assertEquals("Loop " + i, "after", nextName(controller));
                assertNull(nextName(controller));
            }
            int i = 4;
            assertEquals("Loop " + i, "before", nextName(controller));
            assertEquals("Loop " + i, "0", nextName(controller));
            assertEquals("Loop " + i, ""+i, jmvars.get("VAR"));
            assertEquals("Loop " + i, "after", nextName(controller));
            assertNull(nextName(controller));
            assertEquals("4",jmvars.get("VAR"));
        }
}