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

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

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...71 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++) {...

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...81 * 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; ...

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...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.136 * 137 * @param testCase138 */​139 public abstract void endTestCase(TestCase testCase); ...

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...69 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)) { ...

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...23 24 synchronized void printResult(TestResult result, long runTime) {25 printHeader(runTime);26 printErrors(result);27 printFailures(result);28 printFooter(result);29 }30 ...

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printFailures

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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}13 at org.junit.Assert.assertEquals(Assert.java:115)14 at org.junit.Assert.assertEquals(Assert.java:144)15 at com.tutorialspoint.TestJunit.testAdd(TestJunit.java:15)16 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)17 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)18 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)19 at java.lang.reflect.Method.invoke(Method.java:597)20 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)21 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)22 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)23 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)24 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)25 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)26 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)27 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)28 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)29 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)30 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)31 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)32 at org.junit.runners.ParentRunner.run(ParentRunner.java:292)33 at org.junit.runner.JUnitCore.run(JUnitCore.java:157)34 at org.junit.runner.JUnitCore.run(JUnitCore.java:136)35 at com.tutorialspoint.TestRunner.main(TestRunner.java:9)

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printFailures

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1import junit.framework.Test;2import junit.framework.TestCase;3import junit.framework.TestSuite;4import junit.textui.ResultPrinter;5public class TestResultPrinter extends TestCase {6 protected TestResultPrinter(String name) {7 super(name);8 }9 public static Test suite() {10 return new TestSuite(TestResultPrinter.class);11 }12 public void testPrintFailures() {13 ResultPrinter printer = new ResultPrinter(System.out);14 printer.printFailures(new TestSuite(TestResultPrinter.class));15 }16}171) testPrintFailures(junit.textui.TestResultPrinter)18 at junit.textui.TestResultPrinter.testPrintFailures(TestResultPrinter.java:21)19import junit.framework.Test;20import junit.framework.TestCase;21import junit.framework.TestSuite;22import junit.textui.TestRunner;23public class TestRunnerTest extends TestCase {24 protected TestRunnerTest(String name) {25 super(name);26 }27 public static Test suite() {28 return new TestSuite(TestRunnerTest.class);29 }30 public void testRun() {31 TestRunner.run(new TestSuite(TestRunnerTest.class));32 }33}34OK (1 test)35import junit.framework.Test;36import junit.framework.TestCase;37import junit.framework.TestSuite;38import junit.textui.TestRunner;39public class TestRunnerTest extends TestCase {40 protected TestRunnerTest(String name) {41 super(name);42 }43 public static Test suite() {44 return new TestSuite(TestRunnerTest.class);45 }46 public void testRun() {47 TestRunner.run(new TestSuite(TestRunnerTest.class));48 }49}50OK (1 test)

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printFailures

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1import junit.textui.ResultPrinter;2import junit.framework.TestResult;3import junit.framework.TestFailure;4public class PrintFailures {5 public static void main(String[] args) {6 TestResult result = new TestResult();7 MyTestSuite suite = new MyTestSuite();8 suite.run(result);9 ResultPrinter printer = new ResultPrinter(System.out);10 printer.printFailures(result);11 System.exit(result.errorCount() + result.failureCount());12 }13}14 at MyTest.testAssertEquals(MyTest.java:14)15 at MyTestSuite.testAssertEquals(MyTestSuite.java:14)16 at junit.framework.TestCase.runTest(TestCase.java:168)17 at junit.framework.TestCase.runBare(TestCase.java:134)18 at junit.framework.TestResult$1.protect(TestResult.java:110)19 at junit.framework.TestResult.runProtected(TestResult.java:128)20 at junit.framework.TestResult.run(TestResult.java:113)21 at junit.framework.TestCase.run(TestCase.java:124)22 at junit.framework.TestSuite.runTest(TestSuite.java:243)23 at junit.framework.TestSuite.run(TestSuite.java:238)24 at junit.textui.TestRunner.doRun(TestRunner.java:92)25 at junit.textui.TestRunner.run(TestRunner.java:70)26 at junit.textui.TestRunner$1.run(TestRunner.java:49)27 at java.lang.Thread.run(Thread.java:745)28 at MyTest.testAssertEquals(MyTest.java:14)29 at MyTestSuite.testAssertEquals(MyTestSuite.java:14)30 at junit.framework.TestCase.runTest(TestCase.java:168)31 at junit.framework.TestCase.runBare(TestCase.java:134)32 at junit.framework.TestResult$1.protect(TestResult.java:110)33 at junit.framework.TestResult.runProtected(TestResult.java:128)34 at junit.framework.TestResult.run(TestResult.java:113)35 at junit.framework.TestCase.run(TestCase.java:124)36 at junit.framework.TestSuite.runTest(TestSuite.java:243)37 at junit.framework.TestSuite.run(TestSuite.java:238)38 at junit.textui.TestRunner.doRun(TestRunner.java:92)39 at junit.textui.TestRunner.run(TestRunner.java:70)40 at junit.textui.TestRunner$1.run(TestRunner.java:49)

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printFailures

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1import junit.framework.*;2import junit.textui.*;3import java.io.*;4import java.util.*;5public class CustomResultPrinter extends ResultPrinter {6 public CustomResultPrinter(OutputStream out) {7 super(out);8 }9 public void printFailures(TestResult result) {10 List failures = result.failures();11 if (failures.size() == 0)12 return;13 if (failures.size() == 1)14 getWriter().println("There was " + failures.size() + " failure:");15 getWriter().println("There were " + failures.size() + " failures:");16 int i = 1;17 for (Iterator e = failures.iterator(); e.hasNext(); i++) {18 getWriter().print(i + ") ");19 printFailure((TestFailure) e.next());20 }21 try {22 FileWriter fstream = new FileWriter("failures.txt");23 BufferedWriter out = new BufferedWriter(fstream);24 out.write("There were " + failures.size() + " failures:");25 out.newLine();26 i = 1;27 for (Iterator e = failures.iterator(); e.hasNext(); i++) {28 out.write(i + ") ");29 out.write(((TestFailure) e.next()).toString());30 out.newLine();31 }32 out.close();33 System.err.println("Error: " + e.getMessage());34 }35 }36}371) test1(junit.test.Test1)38at junit.framework.Assert.fail(Assert.java:47)39at junit.framework.Assert.failNotEquals(Assert.java:282)40at junit.framework.Assert.assertEquals(Assert.java:64)41at junit.framework.Assert.assertEquals(Assert.java:201)42at junit.test.Test1.test1(Test1.java:10)432) test2(junit.test.Test2)44at junit.framework.Assert.fail(Assert.java:47)45at junit.framework.Assert.failNotEquals(Assert.java:282)46at junit.framework.Assert.assertEquals(Assert.java:64)47at junit.framework.Assert.assertEquals(Assert.java:201)

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printFailures

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1import junit.framework.*;2import junit.textui.ResultPrinter;3public class TestSuiteExample extends TestCase {4 public static void main(String[] args) {5 TestSuite suite = new TestSuite();6 suite.addTestSuite(TestClass1.class);7 suite.addTestSuite(TestClass2.class);8 suite.addTestSuite(TestClass3.class);9 TestResult result = new TestResult();10 suite.run(result);11 ResultPrinter printer = new ResultPrinter(System.out);12 printer.print(result);13 }14}151) testAddition(test.TestClass3)16 at test.TestClass3.testAddition(TestClass3.java:14)17 at java.lang.reflect.Method.invoke(Method.java:606)18 at junit.framework.TestCase.runTest(TestCase.java:176)19 at junit.framework.TestCase.runBare(TestCase.java:141)20 at junit.framework.TestResult$1.protect(TestResult.java:122)21 at junit.framework.TestResult.runProtected(TestResult.java:142)22 at junit.framework.TestResult.run(TestResult.java:125)23 at junit.framework.TestCase.run(TestCase.java:129)24 at junit.framework.TestSuite.runTest(TestSuite.java:252)25 at junit.framework.TestSuite.run(TestSuite.java:247)26 at junit.textui.TestRunner.doRun(TestRunner.java:92)27 at junit.textui.TestRunner.run(TestRunner.java:64)28 at junit.textui.TestRunner$1.run(TestRunner.java:48)29 at java.lang.Thread.run(Thread.java:744)301) testAddition(test.TestClass3)31 at test.TestClass3.testAddition(TestClass3.java:14)32 at java.lang.reflect.Method.invoke(Method.java:606)33 at junit.framework.TestCase.runTest(TestCase.java:176)34 at junit.framework.TestCase.runBare(TestCase.java:141)35 at junit.framework.TestResult$1.protect(TestResult.java:122)36 at junit.framework.TestResult.runProtected(TestResult.java:142)

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printFailures

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1import junit.framework.*;2import junit.textui.*;3public class TestRunner {4 public static void main(String[] args) {5 TestSuite suite = new TestSuite("Test for default package");6 suite.addTestSuite(TestJunit1.class);7 suite.addTestSuite(TestJunit2.class);8 TestResult result = new TestResult();9 suite.run(result);10 ResultPrinter printer = new ResultPrinter(System.out);11 printer.print(result);12 }13}141) testAdd(TestJunit1)15 at junit.framework.Assert.fail(Assert.java:47)16 at junit.framework.Assert.assertTrue(Assert.java:20)17 at junit.framework.Assert.assertTrue(Assert.java:27)18 at TestJunit1.testAdd(TestJunit1.java:12)19 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)20 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)21 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)22 at java.lang.reflect.Method.invoke(Method.java:597)23 at junit.framework.TestCase.runTest(TestCase.java:154)24 at junit.framework.TestCase.runBare(TestCase.java:127)25 at junit.framework.TestResult$1.protect(TestResult.java:106)26 at junit.framework.TestResult.runProtected(TestResult.java:124)27 at junit.framework.TestResult.run(TestResult.java:109)28 at junit.framework.TestCase.run(TestCase.java:118)29 at junit.framework.TestSuite.runTest(TestSuite.java:208)30 at junit.framework.TestSuite.run(TestSuite.java:203)31 at junit.textui.TestRunner.doRun(TestRunner.java:95)32 at junit.textui.TestRunner.run(TestRunner.java:85)33 at junit.textui.TestRunner.run(TestRunner.java:102)34 at junit.textui.TestRunner.main(TestRunner.java:110)

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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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