How to use printDefects method of junit.textui.ResultPrinter class

Best junit code snippet using junit.textui.ResultPrinter.printDefects

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...68 * @see junit.textui.ResultPrinter#printErrors(junit.framework.TestResult)69 */​70 @Override71 protected void printErrors(TestResult result) {72 printDefects(result.errors(), result.errorCount(), "error");73 }74 /​**75 * @see junit.textui.ResultPrinter#printFailures(junit.framework.TestResult)76 */​77 @Override78 protected void printFailures(TestResult result) {79 printDefects(result.failures(), result.failureCount(), "failure");80 }81 /​**82 * @see junit.textui.ResultPrinter#printDefects(java.util.Enumeration, int, java.lang.String)83 */​84 @Override85 protected void printDefects(Enumeration booBoos, int count, String type) {86 if (count == 0)87 return;88 if (count == 1)89 getWriter().println("There was " + count + " " + type + ":");90 else91 getWriter().println("There were " + count + " " + type + "s:");92 for (int i = 1; booBoos.hasMoreElements(); i++) {93 printDefect((TestFailure) booBoos.nextElement(), i);94 }95 }96 /​**97 * @see junit.textui.ResultPrinter#printDefect(junit.framework.TestFailure, int)98 */​99 @Override...

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...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 /​** ...

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...68 }69 70 /​*==========================================================================71 * (non-Javadoc)72 * @see ResultPrinter#printDefects(java.util.Enumeration, int, java.lang.String)73 =========================================================================*/​74 @Override75 protected void printDefects(Enumeration<TestFailure> failures, int count, String type)76 {77 if (count == 0) return;78 for (int i=1; failures.hasMoreElements(); i++)79 {80 if (type.equals("failure"))81 { getWriter().print("[FAIL] ");82 }83 else84 {85 getWriter().print("[ERROR] ");86 87 }88 getWriter().print(i + ".- ");89 printTestTrace(failures.nextElement());...

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...40/​* 40 */​ getWriter().println("Time: " + elapsedTimeAsString(runTime));41/​* */​ }42/​* */​ 43/​* */​ protected void printErrors(TestResult result) {44/​* 44 */​ printDefects(result.errors(), result.errorCount(), "error");45/​* */​ }46/​* */​ 47/​* */​ protected void printFailures(TestResult result) {48/​* 48 */​ printDefects(result.failures(), result.failureCount(), "failure");49/​* */​ }50/​* */​ 51/​* */​ protected void printDefects(Enumeration<TestFailure> booBoos, int count, String type) {52/​* 52 */​ if (count == 0)53/​* 53 */​ return; if (count == 1) {54/​* 54 */​ getWriter().println("There was " + count + " " + type + ":");55/​* */​ } else {56/​* 56 */​ getWriter().println("There were " + count + " " + type + "s:");57/​* */​ } 58/​* 58 */​ for (int i = 1; booBoos.hasMoreElements(); i++) {59/​* 59 */​ printDefect(booBoos.nextElement(), i);60/​* */​ }61/​* */​ }62/​* */​ 63/​* */​ public void printDefect(TestFailure booBoo, int count) {64/​* 64 */​ printDefectHeader(booBoo, count);65/​* 65 */​ printDefectTrace(booBoo);...

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printDefects

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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}

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printDefects

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1import java.io.File;2import java.io.FileNotFoundException;3import java.io.PrintWriter;4import java.lang.reflect.Field;5import java.lang.reflect.Method;6import junit.framework.Test;7import junit.framework.TestResult;8import junit.textui.ResultPrinter;9public class ResultPrinterToFile extends ResultPrinter {10 private PrintWriter writer;11 public ResultPrinterToFile(PrintWriter writer) {12 super(writer);13 this.writer = writer;14 }15 public static void main(String[] args) throws Exception {16 ResultPrinter printer = new ResultPrinterToFile(new PrintWriter(System.out));17 TestResult result = new TestResult();18 Test test = new TestSuite();19 test.run(result);20 Method printDefects = ResultPrinter.class.getDeclaredMethod("printDefects", TestResult.class);21 printDefects.setAccessible(true);22 printDefects.invoke(printer, result);23 }24 protected void printDefect(TestFailure failure, int count) {25 writer.print(count + ") " + failure.failedTest());26 Throwable t = failure.thrownException();27 if (t instanceof AssertionFailedError) {28 writer.println(" (failed)");29 } else {30 writer.println(" (error)");31 }32 writer.println(t.getMessage());33 writer.println();34 }35 protected void printDefectHeader(TestFailure failure) {36 writer.println("Failure in test " + failure.failedTest());37 }38 protected void printDefectFooter(TestFailure failure) {39 writer.println();40 }41}421) test1 (failed)43 at junit.framework.Assert.fail(Assert.java:48)44 at junit.framework.Assert.failNotEquals(Assert.java:329)45 at junit.framework.Assert.assertEquals(Assert.java:78)46 at junit.framework.Assert.assertEquals(Assert.java:234)47 at junit.framework.Assert.assertEquals(Assert.java:241)48 at Test.test1(Test.java:11)49 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

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1package com.tutorialspoint;2import junit.framework.*;3import junit.textui.*;4public class TestJunit extends TestCase {5 protected int value1, value2;6 protected void setUp(){7 value1 = 3;8 value2 = 3;9 }10 public void testAdd(){11 double result = value1 + value2;12 assertTrue(result == 6);13 }14 public static void main(String[] args) {15 TestResult result = new TestResult();16 TestSuite suite = new TestSuite(TestJunit.class);17 ResultPrinter printer = new ResultPrinter(System.out);18 result.addListener(printer);19 suite.run(result);20 }21}22OK (1 test)

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printDefects

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1import junit.textui.ResultPrinter;2import java.io.PrintWriter;3import java.io.StringWriter;4import java.io.OutputStreamWriter;5import java.io.ByteArrayOutputStream;6import java.io.PrintStream;7import junit.framework.TestResult;8import junit.framework.Test;9import junit.framework.TestCase;10import junit.framework.TestSuite;11import junit.textui.TestRunner;12import junit.framework.AssertionFailedError;13public class PrintDefectsTest {14 public static void main(String[] args) {15 TestRunner runner = new TestRunner();16 TestResult result = runner.doRun(suite());17 PrintStream p = new PrintStream(new ByteArrayOutputStream());18 ResultPrinter printer = new ResultPrinter(p);19 printer.printDefects(result);20 }21 public static Test suite() {22 TestSuite suite = new TestSuite();23 suite.addTest(new TestSuite(Test1.class));24 suite.addTest(new TestSuite(Test2.class));25 return suite;26 }27}28class Test1 extends TestCase {29 public void test1() {30 assertTrue(true);31 }32 public void test2() {33 assertTrue(false);34 }35 public void test3() {36 assertTrue(false);37 }38}39class Test2 extends TestCase {40 public void test1() {41 assertTrue(true);42 }43 public void test2() {44 assertTrue(true);45 }46}47at junit.framework.Assert.fail(Assert.java:47)48at junit.framework.Assert.assertTrue(Assert.java:20)49at junit.framework.Assert.assertTrue(Assert.java:27)50at Test1.test2(Test1.java:9)51at java.lang.reflect.Method.invoke(Method.java:597)52at junit.framework.TestCase.runTest(TestCase.java:154)53at junit.framework.TestCase.runBare(TestCase.java:127)54at junit.framework.TestResult$1.protect(TestResult.java:106)55at junit.framework.TestResult.runProtected(TestResult.java:124)56at junit.framework.TestResult.run(TestResult.java:109)57at junit.framework.TestCase.run(TestCase.java:118)58at junit.framework.TestSuite.runTest(TestSuite.java:208)59at junit.framework.TestSuite.run(TestSuite.java:203)60at junit.textui.TestRunner.doRun(TestRunner.java:147)61at junit.textui.TestRunner.run(TestRunner.java:103)

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1import java.io.ByteArrayOutputStream;2import java.io.PrintStream;3import java.util.Enumeration;4import junit.framework.AssertionFailedError;5import junit.framework.Test;6import junit.framework.TestFailure;7import junit.framework.TestResult;8import junit.framework.TestSuite;9public class JUnit4ResultPrinter {10 protected class Result extends TestResult {11 protected ByteArrayOutputStream fBytes;12 public Result() {13 startTestRun();14 }15 public synchronized void addError(Test test, Throwable t) {16 super.addError(test, t);17 printDefect(t, test);18 }19 public synchronized void addFailure(Test test, AssertionFailedError t) {20 super.addFailure(test, t);21 printDefect(t, test);22 }23 public void printDefect(Throwable t, Test test) {24 getWriter().print("error ");25 getWriter().print(test);26 getWriter().print(" ");27 getWriter().print(t.getMessage());28 getWriter().println();29 }30 public synchronized void endTest(Test test) {31 super.endTest(test);32 printDefects();33 }34 public synchronized void printDefects() {35 if (fBytes != null) {36 getWriter().print(fBytes.toString());37 fBytes = null;38 }39 }40 public synchronized void startTest(Test test) {41 super.startTest(test);42 getWriter().print("test ");43 getWriter().print(test);44 getWriter().print(" ");45 }46 public synchronized void write(String s) {47 if (fBytes == null)48 fBytes = new ByteArrayOutputStream();49 fBytes.write(s.getBytes());50 }51 }52 protected PrintStream fWriter;53 public JUnit4ResultPrinter(PrintStream writer) {54 fWriter = writer;55 }56 protected PrintStream getWriter() {57 return fWriter;58 }59 public void print(TestResult result, long runTime) {60 printHeader(runTime);

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1import junit.textui.ResultPrinter;2import java.io.PrintWriter;3import java.io.StringWriter;4import java.io.OutputStreamWriter;5import java.io.ByteArrayOutputStream;6import java.io.PrintStream;7import junit.framework.TestResult;8import junit.framework.Test;9import junit.framework.TestCase;10import junit.framework.TestSuite;11import junit.textui.TestRunner;12import junit.framework.AssertionFailedError;13public class PrintDefectsTest {14 public static void main(String[] args) {15 TestRunner runner = new TestRunner();16 TestResult result = runner.doRun(suite());17 PrintStream p = new PrintStream(new ByteArrayOutputStream());18 ResultPrinter printer = new ResultPrinter(p);19 printer.printDefects(result);20 }21 public static Test suite() {22 TestSuite suite = new TestSuite();23 suite.addTest(new TestSuite(Test1.class));24 suite.addTest(new TestSuite(Test2.class));25 return suite;26 }27}28class Test1 extends TestCase {29 public void test1() {30 assertTrue(true);31 }32 public void test2() {33 assertTrue(false);34 }35 public void test3() {36 assertTrue(false);37 }38}39class Test2 extends TestCase {40 public void test1() {41 assertTrue(true);42 }43 public void test2() {44 assertTrue(true);45 }46}47at junit.framework.Assert.fail(Assert.java:47)48at junit.framework.Assert.assertTrue(Assert.java:20)49at junit.framework.Assert.assertTrue(Assert.java:27)50at Test1.test2(Test1.java:9)51at java.lang.reflect.Method.invoke(Method.java:597)52at junit.framework.TestCase.runTest(TestCase.java:154)53at junit.framework.TestCase.runBare(TestCase.java:127)54at junit.framework.TestResult$1.protect(TestResult.java:106)55at junit.framework.TestResult.runProtected(TestResult.java:124)56at junit.framework.TestResult.run(TestResult.java:109)57at junit.framework.TestCase.run(TestCase.java:118)58at junit.framework.TestSuite.runTest(TestSuite.java:208)59at junit.framework.TestSuite.run(TestSuite.java:203)60at junit.textui.TestRunner.doRun(TestRunner.java:147)61at junit.textui.TestRunner.run(TestRunner.java:103)

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1package com.tutorialspoint;2import junit.framework.*;3import junit.textui.*;4public class TestJunit extends TestCase {5 protected int value1, value2;6 protected void setUp(){7 value1 = 3;8 value2 = 3;9 }10 public void testAdd(){11 double result = value1 + value2;12 assertTrue(result == 6);13 }14 public static void main(String[] args) {15 TestResult result = new TestResult();16 TestSuite suite = new TestSuite(TestJunit.class);17 ResultPrinter printer = new ResultPrinter(System.out);18 result.addListener(printer);19 suite.run(result);20 }21}22OK (1 test)

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Had the same message. I had to remove the Run/Debug configuration.

In my case, I ran the unit test as a local test before. After that I moved my test to the androidTest package and tried to run it again. Android Studio remembered the last run configuration so it tried to run it again as a local unit test which produced the same error.

After removing the config and running the test again it generated a new configuration and worked.

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https://stackoverflow.com/questions/39282282/class-not-found-empty-test-suite-in-intellij

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