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Viewing changes to src/app/com/clarkware/junitperf/TestMethodFactory.java

  • Committer: Bazaar Package Importer
  • Author(s): Arnaud Vandyck
  • Date: 2006-11-06 12:10:29 UTC
  • mfrom: (3.1.3 edgy)
  • Revision ID: james.westby@ubuntu.com-20061106121029-0f8e7pzmig6sh1x5
Tags: 1.9.1-5
http://bugs.debian.org/396419
* built with java-gcj-compat-dev.
* debian/rules: 
  + removed ant-launcher.jar
  + removed the test target (closes: #396419)
* Standards-Version: 3.7.2 (no change)

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src/app/com/clarkware/junitperf/TestMethodFactory.java
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package com.clarkware.junitperf;
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import java.io.*;
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import java.lang.reflect.*;
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import junit.framework.Test;
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import junit.framework.TestCase;
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import junit.framework.TestSuite;
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/**
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 * The <code>TestMethodFactory</code> class is a <code>TestFactory</code>
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 * that creates thread-local <code>TestSuite</code> instances containing
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 * a specific test method of a <code>TestCase</code>.
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 * <p>
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 * A typical usage scenario is as follows:
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 * <blockquote>
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 * <pre>
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 * Test factory = new TestMethodFactory(YourTestCase.class, "testSomething");
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 * LoadTest test = new LoadTest(factory, numberOfUsers, ...);
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 * ...
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 * </pre>
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 * </blockquote>
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 * </p>
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 * 
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 * @author <a href="mailto:mike@clarkware.com">Mike Clark</a>
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 * @author <a href="http://www.clarkware.com">Clarkware Consulting, Inc.</a>
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 *
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 * @see com.clarkware.junitperf.TestFactory
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 * @see com.clarkware.junitperf.LoadTest
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 */
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public class TestMethodFactory extends TestFactory {
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        private final String _testMethodName;
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        /**
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         * Constructs a <code>TestMethodFactory</code> instance.
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         *
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         * @param testClass The <code>TestCase</code> class to load test.
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         * @param testMethodName The name of the test method to load test.
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         */
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        public TestMethodFactory(Class testClass, String testMethodName) {
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                super(testClass);
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                _testMethodName = testMethodName;
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        }
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        protected TestSuite makeTestSuite() {
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                TestSuite suite = new TestSuite();
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                Constructor constructor = null;
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                try {
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                        constructor = getConstructor(_testClass);
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                } catch (NoSuchMethodException e) {
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                        suite.addTest(warning("Class " + _testClass.getName() + 
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                                " has no public constructor TestCase(String name)"));
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                        return suite;
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                }
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                if (!Modifier.isPublic(_testClass.getModifiers())) {
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                        suite.addTest(warning("Class " + _testClass.getName() + 
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                                " is not public"));
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                        return suite;
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                }
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                addTestMethod(suite, constructor, _testMethodName);
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                if (suite.testCount() == 0) {
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                        suite.addTest(warning("No tests found in " + _testClass.getName()));
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                }
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                return suite;
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        }
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        private void 
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        addTestMethod(TestSuite suite, Constructor constructor, String methodName) {
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                Object[] args = new Object[] { methodName };
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                try {
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                        suite.addTest((Test)constructor.newInstance(args));
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                } catch (InstantiationException ie) {
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                        suite.addTest(warning("Cannot instantiate test case: " + 
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                                methodName + " (" + toString(ie) + ")"));
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                } catch (InvocationTargetException ite) {
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                        suite.addTest(warning("Exception in constructor: " + 
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                                methodName + " (" + toString(ite.getTargetException()) + ")"));
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                } catch (IllegalAccessException iae) {
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                        suite.addTest(warning("Cannot access test case: " + 
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                                methodName + " (" + toString(iae) + ")"));
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                }
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        }
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        private Constructor getConstructor(Class theClass) 
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                throws NoSuchMethodException {
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                Class[] args = { String.class };
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                return theClass.getConstructor(args);
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        }
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        private Test warning(final String message) {
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                return new TestCase("warning") {
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                        protected void runTest() {
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                                fail(message);
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                        }
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                };
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        }
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        private String toString(Throwable t) {
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                StringWriter stringWriter = new StringWriter();
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                PrintWriter writer = new PrintWriter(stringWriter);
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                t.printStackTrace(writer);
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                return stringWriter.toString();
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        }
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}