How to use ResultPrinter class of junit.textui package

Best junit code snippet using junit.textui.ResultPrinter

Source:JunitResultPrinter.java Github

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...7import junit.runner.BaseTestRunner;89/**10 * Simple result printer which produces output similar to that of11 * <code>junit.textui.ResultPrinter</code>. This result printer is based on12 * <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich Gamma.13 * 14 * <p>15 * Copyright &copy; 2004 - <a href="http://www.usq.edu.au"> University of16 * Southern Queensland. </a>17 * </p>18 * 19 * <p>20 * This program is free software; you can redistribute it and/or modify it under21 * the terms of the <a href="http://www.gnu.org/licenses/gpl.txt">GNU General22 * Public License v2 </a> as published by the Free Software Foundation.23 * </p>24 * 25 * <p>26 * This program is distributed in the hope that it will be useful, but WITHOUT27 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS28 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more29 * details.30 * </p>31 * 32 * <code>33 * $Source: /cvs/utf-x/framework/src/java/utfx/printers/JunitResultPrinter.java,v $34 * </code>35 * 36 * @author Jacek Radajewski37 * @author Kent Beck and Erich Gamma (authors of38 * <code>junit.textui.ResultPrinter</code>)39 * @version $Revision$ $Date$ $Name: $40 */41public class JunitResultPrinter extends ResultPrinter {4243 /** column number */44 private int colNum = 0;4546 public JunitResultPrinter(OutputStream os) {47 super(os);48 }4950 /**51 * Print summary header.52 * 53 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich54 * Gamma.55 * 56 * @see junit.textui.ResultPrinter57 */58 public void printHeader(TestResult result) {59 println();60 print("Time: ");61 printElapsedTimeMillis();62 println();63 }6465 /**66 * Print errors.67 * 68 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich69 * Gamma.70 * 71 * @see junit.textui.ResultPrinter72 */73 public void printErrors(TestResult result) {74 printDefects(result.errors(), result.errorCount(), "error");75 }7677 /**78 * Print failures79 * 80 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich81 * Gamma.82 * 83 * @see junit.textui.ResultPrinter84 */85 public void printFailures(TestResult result) {86 printDefects(result.failures(), result.failureCount(), "failure");87 }8889 /**90 * Print defects.91 * 92 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich93 * Gamma.94 * 95 * @see junit.textui.ResultPrinter96 */97 public void printDefects(Enumeration booBoos, int count, String type) {98 if (count == 0) {99 return;100 }101 if (count == 1) {102 println("There was " + count + " " + type + ":");103 } else {104 println("There were " + count + " " + type + "s:");105 }106 for (int i = 1; booBoos.hasMoreElements(); i++) {107 printDefect((TestFailure) booBoos.nextElement(), i);108 }109 }110111 /**112 * Print a defect.113 * 114 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich115 * Gamma.116 * 117 * @see junit.textui.ResultPrinter118 */119 public void printDefect(TestFailure booBoo, int count) {120 printDefectHeader(booBoo, count);121 printDefectTrace(booBoo);122 }123124 /**125 * Print defect header.126 * 127 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich128 * Gamma.129 * 130 * @see junit.textui.ResultPrinter131 */132 public void printDefectHeader(TestFailure booBoo, int count) {133 print("[" + count + "] " + booBoo.failedTest());134 }135136 /**137 * Print defect trace.138 * 139 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich140 * Gamma.141 * 142 * @see junit.textui.ResultPrinter143 */144 public void printDefectTrace(TestFailure booBoo) {145 print(BaseTestRunner.getFilteredTrace(booBoo.trace()));146 }147148 /**149 * Print footer.150 * 151 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich152 * Gamma.153 * 154 * @see junit.textui.ResultPrinter155 */156 public void printFooter(TestResult result) {157 if (result.wasSuccessful()) {158 println();159 print("OK");160 println(" (" + result.runCount() + " test"161 + (result.runCount() == 1 ? "" : "s") + ")");162 } else {163 println();164 println("FAILURES!!!");165 println("Tests run: " + result.runCount() + ", Failures: "166 + result.failureCount() + ", Errors: "167 + result.errorCount());168 }169 println();170 }171172 /**173 * Print error symbol.174 * 175 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich176 * Gamma.177 * 178 * @see junit.textui.ResultPrinter179 * @see junit.framework.TestListener#addError(Test, Throwable)180 */181 public void addError(Test test, Throwable t) {182 print('E');183 }184185 /**186 * Print failure symbol.187 * 188 * Based on <code>junit.textui.ResultPrinter</code> by Kent Beck and Erich189 * Gamma.190 * 191 * @see junit.textui.ResultPrinter192 * @see junit.framework.TestListener#addFailure(Test, AssertionFailedError)193 */194 public void addFailure(Test test, AssertionFailedError t) {195 print('F');196 }197198 /**199 * Start of a test case.200 * 201 * @param testCase the TestSuite we are entering.202 */203 public void startTestCase(TestCase testCase) {204 print('.');205 ...

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Source:ResultPrinter.java Github

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...14import utfx.framework.ConfigurationManager;1516/**17 * Abstract result printer. Result printers are used for printing test run18 * results. General idea based on <code>junit.textui.ResultPrinter</code>. In19 * this implementation we allow for different result printers to be attached to20 * the TestResult object and print the results of a test run in various ways.21 * 22 * <p>23 * Copyright &copy; 2004 - <a href="http://www.usq.edu.au"> University of24 * Southern Queensland. </a>25 * </p>26 * 27 * <p>28 * This program is free software; you can redistribute it and/or modify it under29 * the terms of the <a href="http://www.gnu.org/licenses/gpl.txt">GNU General30 * Public License v2 </a> as published by the Free Software Foundation.31 * </p>32 * 33 * <p>34 * This program is distributed in the hope that it will be useful, but WITHOUT35 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS36 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more37 * details.38 * </p>39 * 40 * <code>41 * $Source: /cvs/utf-x/framework/src/java/utfx/printers/ResultPrinter.java,v $42 * </code>43 * 44 * @author Jacek Radajewski45 * @version $Revision$ $Date$ $Name: $46 */47public abstract class ResultPrinter extends PrintStream implements TestListener {4849 /** the depth of the current suite; root test suite = 0 */50 protected int suiteDepth = -1;5152 /** total test case conter; first test = 1 */53 protected int testCaseCount = 0;5455 /** indent string */56 protected String indentString = " ";5758 /** start time in milliseconds */59 private long startTime;6061 /** loggin facility */62 protected Logger log;6364 /**65 * Construnct a new Result Printer from an OutputStream.66 */67 public ResultPrinter(OutputStream os) {68 super(os);69 log = Logger.getLogger("utfx.framework"); 70 }7172 /**73 * @return indent string74 */75 public String getIndent(int depth) {76 StringBuffer indent = new StringBuffer(indentString.length() * depth);7778 for (int i = 0; i < depth; i++) {79 indent.append(indentString);80 }81 return indent.toString();82 }8384 /**85 * Print the result summary. This method should be called at the end of a86 * test run to produce a regression test summary.87 * 88 * based on <code>junit.textui.ResultPrinter</code>89 * 90 * @param result test result91 */92 public void printSummary(TestResult result) {93 log.debug("calling printHeader() ...");94 printHeader(result);95 log.debug("calling printErrors() ...");96 printErrors(result);97 log.debug("calling printFailures() ...");98 printFailures(result);99 log.debug("calling printFooter() ...");100 printFooter(result);101 }102103 /**104 * Print report header. Based on <code>junit.textui.ResultPrinter</code>105 */106 public abstract void printHeader(TestResult result);107108 /**109 * Print report header. Based on <code>junit.textui.ResultPrinter</code>110 */111 public abstract void printFooter(TestResult result);112113 /**114 * Print errors. Based on <code>junit.textui.ResultPrinter</code>115 * 116 * @param result test result117 */118 public abstract void printErrors(TestResult result);119120 /**121 * Print failures. Based on <code>junit.textui.ResultPrinter</code>122 * 123 * @param result test result124 */125 public abstract void printFailures(TestResult result);126127 /**128 * Start of a test case.129 * 130 * @param testCase the TestSuite we are entering.131 */132 public abstract void startTestCase(TestCase testCase);133134 /**135 * End of a test case. ...

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Source:TestRunnerImprovedErrorHandling.java Github

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...21package org.wso2.andes.junit.extensions;22import junit.framework.Test;23import junit.framework.TestResult;24import junit.runner.Version;25import junit.textui.ResultPrinter;26import junit.textui.TestRunner;27import org.apache.log4j.Logger;28import java.io.PrintStream;29/**30 * The {@link junit.textui.TestRunner} does not provide very good error handling. It does not wrap exceptions and31 * does not print out stack traces, losing valuable error tracing information. This class overrides methods in it32 * in order to improve their error handling. The {@link TKTestRunner} is then built on top of this.33 *34 * <p/><table id="crc"><caption>CRC Card</caption>35 * <tr><th> Responsibilities <th> Collaborations36 * </table>37 *38 * @author Rupert Smith39 */40public class TestRunnerImprovedErrorHandling extends TestRunner41{42 /** Used for logging. */43 Logger log = Logger.getLogger(TestRunnerImprovedErrorHandling.class);44 /**45 * Delegates to the super constructor.46 */47 public TestRunnerImprovedErrorHandling()48 {49 super();50 }51 /**52 * Delegates to the super constructor.53 *54 * @param printStream The location to write test results to.55 */56 public TestRunnerImprovedErrorHandling(PrintStream printStream)57 {58 super(printStream);59 }60 /**61 * Delegates to the super constructor.62 *63 * @param resultPrinter The location to write test results to.64 */65 public TestRunnerImprovedErrorHandling(ResultPrinter resultPrinter)66 {67 super(resultPrinter);68 }69 /**70 * Starts a test run. Analyzes the command line arguments71 * and runs the given test suite.72 *73 * @param args The command line arguments.74 *75 * @return The test results.76 *77 * @throws Exception Any exceptions falling through the tests are wrapped in Exception and rethrown.78 */79 public TestResult start(String[] args) throws Exception...

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Source:TextFeedbackTest.java Github

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...8import junit.framework.AssertionFailedError;9import junit.framework.TestCase;10import junit.framework.TestResult;11import junit.framework.TestSuite;12import junit.textui.ResultPrinter;13import junit.textui.TestRunner;1415public class TextFeedbackTest extends TestCase {16 OutputStream output;17 TestRunner runner;18 19 static class TestResultPrinter extends ResultPrinter {20 TestResultPrinter(PrintStream writer) {21 super(writer);22 }23 24 /* Spoof printing time so the tests are deterministic25 */26 @Override27 protected String elapsedTimeAsString(long runTime) {28 return "0";29 }30 }31 32 public static void main(String[] args) {33 TestRunner.run(TextFeedbackTest.class);34 }35 36 @Override37 public void setUp() {38 output= new ByteArrayOutputStream();39 runner= new TestRunner(new TestResultPrinter(new PrintStream(output)));40 }41 42 public void testEmptySuite() {43 String expected= expected(new String[]{"", "Time: 0", "", "OK (0 tests)", ""});44 runner.doRun(new TestSuite());45 assertEquals(expected, output.toString());46 }4748 49 public void testOneTest() {50 String expected= expected(new String[]{".", "Time: 0", "", "OK (1 test)", ""});51 TestSuite suite = new TestSuite();52 suite.addTest(new TestCase() { @Override53 public void runTest() {}});54 runner.doRun(suite);55 assertEquals(expected, output.toString());56 }57 58 public void testTwoTests() {59 String expected= expected(new String[]{"..", "Time: 0", "", "OK (2 tests)", ""});60 TestSuite suite = new TestSuite();61 suite.addTest(new TestCase() { @Override62 public void runTest() {}});63 suite.addTest(new TestCase() { @Override64 public void runTest() {}});65 runner.doRun(suite);66 assertEquals(expected, output.toString());67 }6869 public void testFailure() {70 String expected= expected(new String[]{".F", "Time: 0", "Failures here", "", "FAILURES!!!", "Tests run: 1, Failures: 1, Errors: 0", ""});71 ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {72 @Override73 public void printFailures(TestResult result) {74 getWriter().println("Failures here");75 }76 };77 runner.setPrinter(printer);78 TestSuite suite = new TestSuite();79 suite.addTest(new TestCase() { @Override80 public void runTest() {throw new AssertionFailedError();}});81 runner.doRun(suite);82 assertEquals(expected, output.toString());83 }84 85 public void testError() {86 String expected= expected(new String[]{".E", "Time: 0", "Errors here", "", "FAILURES!!!", "Tests run: 1, Failures: 0, Errors: 1", ""});87 ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {88 @Override89 public void printErrors(TestResult result) {90 getWriter().println("Errors here");91 }92 };93 runner.setPrinter(printer);94 TestSuite suite = new TestSuite();95 suite.addTest(new TestCase() { @Override96 public void runTest() throws Exception {throw new Exception();}});97 runner.doRun(suite);98 assertEquals(expected, output.toString());99 }100 101 private String expected(String[] lines) { ...

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Source:ForwardCompatibilityPrintingTest.java Github

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...7import junit.framework.JUnit4TestAdapter;8import junit.framework.TestCase;9import junit.framework.TestResult;10import junit.framework.TestSuite;11import junit.textui.ResultPrinter;12import junit.textui.TestRunner;13import org.junit.Assert;14import org.junit.Test;1516public class ForwardCompatibilityPrintingTest extends TestCase {17 static class TestResultPrinter extends ResultPrinter {18 TestResultPrinter(PrintStream writer) {19 super(writer);20 }2122 /*23 * Spoof printing time so the tests are deterministic24 */25 @Override26 protected String elapsedTimeAsString(long runTime) {27 return "0";28 }29 }3031 public void testError() {32 ByteArrayOutputStream output= new ByteArrayOutputStream();33 TestRunner runner= new TestRunner(new TestResultPrinter(34 new PrintStream(output)));3536 String expected= expected(new String[] { ".E", "Time: 0",37 "Errors here", "", "FAILURES!!!",38 "Tests run: 1, Failures: 0, Errors: 1", "" });39 ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {40 @Override41 public void printErrors(TestResult result) {42 getWriter().println("Errors here");43 }44 };45 runner.setPrinter(printer);46 TestSuite suite= new TestSuite();47 suite.addTest(new TestCase() {48 @Override49 public void runTest() throws Exception {50 throw new Exception();51 }52 });53 runner.doRun(suite);54 assertEquals(expected, output.toString());55 }5657 public static class ATest {58 @Test public void error() {59 Assert.fail();60 }61 }62 63 public void testErrorAdapted() {64 ByteArrayOutputStream output= new ByteArrayOutputStream();65 TestRunner runner= new TestRunner(new TestResultPrinter(66 new PrintStream(output)));6768 String expected= expected(new String[] { ".E", "Time: 0",69 "Errors here", "", "FAILURES!!!",70 "Tests run: 1, Failures: 0, Errors: 1", "" });71 ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {72 @Override73 public void printErrors(TestResult result) {74 getWriter().println("Errors here");75 }76 };77 runner.setPrinter(printer);78 runner.doRun(new JUnit4TestAdapter(ATest.class));79 assertEquals(expected, output.toString());80 }8182 private String expected(String[] lines) {83 OutputStream expected= new ByteArrayOutputStream();84 PrintStream expectedWriter= new PrintStream(expected);85 for (int i= 0; i < lines.length; i++) ...

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Source:NoDotJUnitRunner.java Github

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...20 *******************************************************************************/21package alma.acs.testsupport.tat;22import junit.framework.Test;23import junit.framework.TestResult;24import junit.textui.ResultPrinter;25import junit.textui.TestRunner;26/**27 * Variant of {@link junit.textui.TestRunner} that does not print a "." for every test.28 * Using this class can be useful in conjunction with TAT, because these dots sometimes29 * show up in the output and sometimes they don't (unknown hidden parameters of TAT??),30 * which forces us to change the ref files unnecessarily.31 * 32 * @author hsommer33 */34public class NoDotJUnitRunner extends TestRunner {35 public NoDotJUnitRunner() {36 super();37 setPrinter(createResultPrinter());38 } 39 40 /**41 * Factory method for result printer. 42 * Could be overridden by a test that needs a more specialized custom ResultPrinter 43 */44 protected ResultPrinter createResultPrinter() {45 return new ResultPrinter(System.out) {46 public void startTest(Test test) {47 // do not print the damn "." !48 } 49 };50 }51 52 /**53 * Copied from base class TestRunner, except that a NoDotJUnitRunner gets created.54 */55 public static void main(String args[]) {56 NoDotJUnitRunner aTestRunner= new NoDotJUnitRunner();57 try {58 TestResult r= aTestRunner.start(args);59 if (!r.wasSuccessful()) ...

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Source:TestRunner.java Github

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...3 public static final int FAILURE_EXIT;4 public static final int EXCEPTION_EXIT;5 public junit.textui.TestRunner();6 public junit.textui.TestRunner(java.io.PrintStream);7 public junit.textui.TestRunner(junit.textui.ResultPrinter);8 public static void run(java.lang.Class<? extends junit.framework.TestCase>);9 public static junit.framework.TestResult run(junit.framework.Test);10 public static void runAndWait(junit.framework.Test);11 public void testFailed(int, junit.framework.Test, java.lang.Throwable);12 public void testStarted(java.lang.String);13 public void testEnded(java.lang.String);14 protected junit.framework.TestResult createTestResult();15 public junit.framework.TestResult doRun(junit.framework.Test);16 public junit.framework.TestResult doRun(junit.framework.Test, boolean);17 protected void pause(boolean);18 public static void main(java.lang.String[]);19 public junit.framework.TestResult start(java.lang.String[]) throws java.lang.Exception;20 protected junit.framework.TestResult runSingleMethod(java.lang.String, java.lang.String, boolean) throws java.lang.Exception;21 protected void runFailed(java.lang.String);22 public void setPrinter(junit.textui.ResultPrinter);23}...

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Source:TextRunnerSingleMethodTest.java Github

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...3import java.io.ByteArrayOutputStream;4import java.io.PrintStream;56import junit.framework.TestCase;7import junit.textui.ResultPrinter;8import junit.textui.TestRunner;910/**11 * Test invoking a single test method of a TestCase.12 */13public class TextRunnerSingleMethodTest extends TestCase {14 15 static boolean fgWasInvoked;16 17 public static class InvocationTest extends TestCase {1819 public void testWasInvoked() {20 TextRunnerSingleMethodTest.fgWasInvoked= true;21 }2223 public void testNotInvoked() {24 fail("Shouldn't get here.");25 }26 }27 28 public void testSingle() throws Exception {29 TestRunner t= new TestRunner();30 t.setPrinter(new ResultPrinter(new PrintStream(new ByteArrayOutputStream())));31 String[] args= {32 "-m", "junit.tests.runner.TextRunnerSingleMethodTest$InvocationTest.testWasInvoked"33 };34 fgWasInvoked= false;35 t.start(args);36 assertTrue(fgWasInvoked);37 }38 ...

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1import junit.textui.ResultPrinter;2import junit.framework.TestResult;3import junit.framework.TestSuite;4import junit.framework.TestCase;5import junit.framework.Test;6import junit.framework.TestFailure;7import junit.framework.TestListener;8import junit.framework.AssertionFailedError;9import junit.framework.TestListener;10import junit.framework.AssertionFailedError;11import junit.framework.TestListener;12import junit.framework.AssertionFailedError;13import junit.framework.TestListener;14import junit.framework.AssertionFailedError;15import junit.framework.TestListener;16import junit.framework.AssertionFailedError;17import junit.framework.TestListener;18import junit.framework.AssertionFailedError;19import junit.framework.TestListener;20import junit.framework.AssertionFailedError;21import junit.framework.TestListener;22import junit.framework.AssertionFailedError;23import junit.framework.TestListener;24import junit.framework.AssertionFailedError;25import junit.framework.TestListener;26import junit.framework.AssertionFailedError;27import junit.framework

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1import org.junit.runner.JUnitCore;2import org.junit.runner.Result;3import org.junit.runner.notification.Failure;4public class TestRunner {5 public static void main(String[] args) {6 Result result = JUnitCore.runClasses(TestJunit.class);7 for (Failure failure : result.getFailures()) {8 System.out.println(failure.toString());9 }10 System.out.println(result.wasSuccessful());11 }12}13at org.junit.Assert.assertEquals(Assert.java:115)14at org.junit.Assert.assertEquals(Assert.java:144)15at TestJunit.testAdd(TestJunit.java:12)16at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)17at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)18at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)19at java.lang.reflect.Method.invoke(Method.java:597)20at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)21at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)22at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)23at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)24at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)25at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)26at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)27at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)28at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)29at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)30at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)31at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)32at org.junit.runners.ParentRunner.run(ParentRunner.java:292)33at org.junit.runner.JUnitCore.run(JUnitCore.java:157)34at org.junit.runner.JUnitCore.run(JUnitCore.java:136)35at TestRunner.main(TestRunner.java:9

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1import java.io.PrintWriter;2import java.io.StringWriter;3import java.io.Writer;4import junit.framework.AssertionFailedError;5import junit.framework.Test;6import junit.framework.TestResult;7import junit.framework.TestSuite;8import junit.textui.ResultPrinter;9public class TestResultPrinter extends ResultPrinter {10 private Writer fWriter;11 private StringBuffer fBuffer;12 public TestResultPrinter(Writer writer) {13 super(writer);14 fWriter = writer;15 fBuffer = new StringBuffer();16 }17 public void startTest(Test test) {18 super.startTest(test);19 fBuffer.append("20");21 }22 public void addError(Test test, Throwable t) {23 super.addError(test, t);24 fBuffer.append("ERROR: ");25 fBuffer.append(t.toString());26 fBuffer.append("27");28 }29 public void addFailure(Test test, AssertionFailedError t) {30 super.addFailure(test, t);31 fBuffer.append("FAILURE: ");32 fBuffer.append(t.toString());33 fBuffer.append("34");35 }36 public void endTest(Test test) {37 super.endTest(test);38 fBuffer.append("39");40 }41 public String getOutput() {42 return fBuffer.toString();43 }44}45import java.io.PrintWriter;46import java.io.StringWriter;47import java.io.Writer;48import junit.framework.AssertionFailedError;49import junit.framework.Test;50import junit.framework.TestResult;51import junit.framework.TestSuite;52import junit.textui.ResultPrinter;53public class TestResultPrinter extends ResultPrinter {54 private Writer fWriter;55 private StringBuffer fBuffer;56 public TestResultPrinter(Writer writer) {57 super(writer);58 fWriter = writer;59 fBuffer = new StringBuffer();60 }61 public void startTest(Test test) {62 super.startTest(test);63 fBuffer.append("64");65 }66 public void addError(Test test, Throwable t) {67 super.addError(test, t);68 fBuffer.append("ERROR: ");69 fBuffer.append(t.toString());70 fBuffer.append("71");72 }73 public void addFailure(Test test, AssertionFailedError t) {74 super.addFailure(test, t);75 fBuffer.append("FAILURE: ");76 fBuffer.append(t.toString());77 fBuffer.append("78");79 }80 public void endTest(Test test) {81 super.endTest(test);

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1import java.io.PrintStream;2import java.io.PrintWriter;3import java.io.StringWriter;4import java.util.Enumeration;5import java.util.Vector;6import junit.framework.AssertionFailedError;7import junit.framework.Test;8import junit.framework.TestFailure;9import junit.framework.TestResult;10public class ResultPrinter extends PrintWriter {11 private int fColumn= 0;12 protected Vector fFailures;13 protected Vector fErrors;14 private int fMaxColumn= 40;15 private boolean fSystemOut;16 private PrintStream fWriter;17 public ResultPrinter(PrintStream writer) {18 super(writer);19 fWriter= writer;20 fFailures= new Vector();21 fErrors= new Vector();22 fSystemOut= true;23 }24 public void startTest(Test test) {25 fColumn= 0;26 getWriter().print("Testing " + test);27 }28 public void addError(Test test, Throwable t) {29 getWriter().print("E");30 fErrors.addElement(new TestFailure(test, t));31 fColumn++;32 }33 public void addFailure(Test test, AssertionFailedError t) {34 getWriter().print("F");35 fFailures.addElement(new TestFailure(test, t));36 fColumn++;37 }38 public void endTest(Test test) {39 getWriter().println();40 }41 public void printWaitPrompt() {42 getWriter().println();43 getWriter().println("<RETURN> to continue");44 }45 public void printHeader(long runTime) {46 getWriter().println();47 getWriter().println("Time: " + elapsedTimeAsString(runTime));48 }49 public void printErrors() {50 printDefects(fErrors, fErrors.size() + " error" + (fErrors.size() == 1 ? "" : "s"));51 }52 public void printFailures() {53 printDefects(fFailures, fFailures.size() + " failure" + (fFailures.size() == 1 ? "" : "s"));54 }55 public void printDefects(Vector defects, String name) {56 int size= defects.size();57 if (size == 0)58 return;59 if (size == 1)60 getWriter().println("There was " + size + " " + name + ":");61 getWriter().println("There were " + size + " " + name + ":");

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1import junit.textui.ResultPrinter;2import junit.framework.TestResult;3import junit.framework.Test;4import java.io.PrintWriter;5public class MyResultPrinter extends ResultPrinter {6 public MyResultPrinter(PrintWriter writer) {7 super(writer);8 }9 public void print(TestResult result, long runTime) {10 getWriter().println();11 getWriter().println("Time: " + elapsedTimeAsString(runTime));12 printHeader(result);13 printErrors(result);14 printFailures(result);15 printFooter(result);16 }17 public void printHeader(TestResult result) {18 getWriter().println();19 getWriter().println("Test set: " + result.runCount() + " tests");20 }21 public void printErrors(TestResult result) {22 printDefects(result.errors(), result.errorCount(), "error");23 }24 public void printFailures(TestResult result) {25 printDefects(result.failures(), result.failureCount(), "failure");26 }27 public void printDefects(java.util.Enumeration booBoos, int count, String type) {28 if (count == 0)29 return;30 if (count == 1)31 getWriter().println("There was " + count + " " + type + ":");32 getWriter().println("There were " + count + " " + type + "s:");33 for (int i = 1; booBoos.hasMoreElements(); i++) {34 printDefect((TestFailure) booBoos.nextElement(), i);35 }36 }37 public void printDefect(TestFailure booBoo, int count) {38 printDefectHeader(booBoo, count);39 printDefectTrace(booBoo);40 }41 public void printDefectHeader(TestFailure booBoo, int count) {42 getWriter().print(count + ") " + booBoo.failedTest());43 }44 public void printDefectTrace(TestFailure booBoo) {45 getWriter().print(booBoo.trace());46 }47 public void printFooter(TestResult result) {48 if (result.wasSuccessful()) {49 getWriter().println();50 getWriter().print("OK");51 getWriter().println(" (" + result.runCount() + " tests)");52 } else {53 getWriter().println();54 getWriter().println("FAILURES!!!");55 getWriter().println("Tests run:

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ResultPrinter

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1import junit.framework.*;2import junit.textui.*;3public class TestResultPrinter extends TestCase {4 public void testResultPrinter() {5 TestResult result = new TestResult();6 ResultPrinter printer = new ResultPrinter(System.out);7 result.addListener(printer);8 result.run(new TestSuite(TestResultPrinter.class));9 }10}11import junit.framework.*;12import junit.awtui.*;13public class TestResultPrinter extends TestCase {14 public void testResultPrinter() {15 TestResult result = new TestResult();16 ResultPrinter printer = new ResultPrinter();17 result.addListener(printer);18 result.run(new TestSuite(TestResultPrinter.class));19 }20}21import junit.framework.*;22import junit.swingui.*;23public class TestResultPrinter extends TestCase {24 public void testResultPrinter() {25 TestResult result = new TestResult();26 ResultPrinter printer = new ResultPrinter();27 result.addListener(printer);28 result.run(new TestSuite(TestResultPrinter.class));29 }30}31import junit.framework.*;32import junit.textui.*;33public class TestRunnerExample {34 public static void main(String[] args) {35 TestRunner runner = new TestRunner();36 runner.doRun(new TestSuite(TestRunnerExample.class));37 }38}39import junit.framework.*;40import junit.awtui.*;41public class TestRunnerExample {42 public static void main(String[] args) {43 TestRunner runner = new TestRunner();44 runner.start(new String[] {45 TestRunnerExample.class.getName()46 });47 }48}49import junit.framework.*;50import junit.swingui.*;

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ResultPrinter

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1import junit.textui.ResultPrinter;2import junit.framework.TestResult;3import junit.framework.Test;4import junit.framework.TestCase;5class TestRunner {6 public static void main(String args[]) {7 ResultPrinter printer = new ResultPrinter(System.out);8 TestResult result = new TestResult();9 result.addListener(printer);10 result.run(new TestCase("test") {11 public void runTest() {12 assertEquals(1, 1);13 }14 });15 }16}17import junit.textui.TestRunner;18import junit.framework.Test;19import junit.framework.TestCase;20class TestRunner {21 public static void main(String args[]) {22 TestRunner runner = new TestRunner();23 runner.doRun(new TestCase("test") {24 public void runTest() {25 assertEquals(1, 1);26 }27 });28 }29}30import junit.framework.TestSuite;31import junit.framework.Test;32import junit.framework.TestCase;33class TestRunner {34 public static void main(String args[]) {35 TestSuite suite = new TestSuite();36 suite.addTest(new TestCase("test") {37 public void runTest() {38 assertEquals(1, 1);39 }40 });41 }42}

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1import junit.textui.ResultPrinter;2import junit.framework.TestResult;3import junit.framework.TestSuite;4import junit.framework.TestCase;5import junit.framework.Test;6import java.io.PrintStream;7import java.io.ByteArrayOutputStream;8import java.io.PrintStream;9import java.io.ByteArrayOutputStream;10import java.io.OutputStream;11import java.io.ByteArrayOutputStream;12import java.io.OutputStream;13import java.io.ByteArrayOutputStream;14import java.io.OutputStream;15import java.io.ByteArrayOutputStream;16import java.io.OutputStream;17import java.io.ByteArrayOutputStream;18import java.io.OutputStream;19import java.io.ByteArrayOutputStream;20import java.io.OutputStream;21import java.io.ByteArrayOutputStream;22import java.io.OutputStream;23import java.io.ByteArrayOutputStream;24import java.io.OutputStream;25import java.io.ByteArrayOutputStream;26import java.io.OutputStream;27import java.io.ByteArrayOutputStream;28import java.io.OutputStream;29import java.io.ByteArrayOutputStream;30import java.io.OutputStream;31import java.io.ByteArrayOutputStream;32import java.io.OutputStream;33import java.io.ByteArrayOutputStream;34import java.io.OutputStream;35import java.io.ByteArrayOutputStream;36import java.io.OutputStream;37import java.io.ByteArrayOutputStream;38import java.io.OutputStream;39import java.io.ByteArrayOutputStream;40import java.io.OutputStream;41import java.io.ByteArrayOutputStream;42import java.io.OutputStream;43import java.io.ByteArrayOutputStream;44import java.io.OutputStream;45import java.io.ByteArrayOutputStream;46import java.io.OutputStream;47import java.io.ByteArrayOutputStream;48import java.io.OutputStream;49import java.io.ByteArrayOutputStream;50import java.io.OutputStream;51import java.io.ByteArrayOutputStream;52import java.io.OutputStream;53import java.io.ByteArrayOutputStream;54import java.io.OutputStream;55import java.io.ByteArrayOutputStream;56import java.io.OutputStream;57import java.io.ByteArrayOutputStream;58import java.io.OutputStream;59import java.io.ByteArrayOutputStream;60import java.io.OutputStream;61import java.io.ByteArrayOutputStream;62import java.io.OutputStream;63import java.io.ByteArrayOutputStream;64import java.io.OutputStream;65import java.io.ByteArrayOutputStream;66import java.io.OutputStream;67import java.io.ByteArrayOutputStream;68import java.io.OutputStream;69import java.io.ByteArrayOutputStream;70import java.io.OutputStream;71import java.io.ByteArrayOutputStream;72import java.io.OutputStream;73import java.io.ByteArrayOutputStream;74import java.io.OutputStream;75import java.io.ByteArrayOutputStream;76import java.io.OutputStream;77import java.io.ByteArrayOutputStream;78import java.io.OutputStream;79import java.io.ByteArrayOutputStream;80import java.io.OutputStream;81import java.io.ByteArrayOutputStream;82import java.io.OutputStream;83import java.io.ByteArrayOutputStream;84import java.io.OutputStream;85import java.io.ByteArrayOutputStream;86import java.io.OutputStream;87import java.io.ByteArrayOutputStream;88import java.io.OutputStream;89import java.io.ByteArrayOutputStream;90import java.io.OutputStream;

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1public class PassByCopy{2 public static void changeName(Dog d){3 d.name = "Fido";4 }5 public static void main(String[] args){6 Dog d = new Dog("Maxx");7 System.out.println("name= "+ d.name);8 changeName(d);9 System.out.println("name= "+ d.name);10 }11}12class Dog{13 public String name;14 public Dog(String s){15 this.name = s;16 }17}18
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1Account account1 = new Account();2
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1public void test() {2 MyClass obj = null;3 init(obj);4 //After calling init method, obj still points to null5 //this is because obj is passed as value and not as reference.6}7private void init(MyClass objVar) {8 objVar = new MyClass();9}10
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JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

  • Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
  • Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
  • What is the JUnit framework
  • Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
  • Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
  • JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
  • Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
  • Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
  • Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
  • Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
  • Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
  • Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
  • Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
  • Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
  • Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.

JUnit Certification:

You can also check out our JUnit certification if you wish to take your career in Selenium automation testing with JUnit to the next level.

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