How to use errors method of junit.framework.TestResult class
Best junit code snippet using junit.framework.TestResult.errors
Source:ForwardCompatibilityTest.java 
...61 public void testException() {62 TestResult result= new TestResult();63 junit.framework.Test adapter= new JUnit4TestAdapter(ErrorTest.class);64 adapter.run(result);65 assertEquals(exception, result.errors().nextElement().thrownException());66 }67 68 public void testNotifyResult() {69 JUnit4TestAdapter adapter= new JUnit4TestAdapter(ErrorTest.class);70 TestResult result= new TestResult();71 final StringBuffer log= new StringBuffer();72 result.addListener(new TestListener() {73 74 public void startTest(junit.framework.Test test) {75 log.append(" start " + test);76 }77 78 public void endTest(junit.framework.Test test) {79 log.append(" end " + test);80 }81 82 public void addFailure(junit.framework.Test test, AssertionFailedError t) {83 log.append(" failure " + test); 84 }85 86 public void addError(junit.framework.Test test, Throwable t) {87 log.append(" error " + test); 88 }89 });90 adapter.run(result);91 String testName= String.format("error(%s)", ErrorTest.class.getName());92 assertEquals(String.format(" start %s error %s end %s", testName, testName, testName), log.toString());93 }9495 96 public static class NoExceptionTest {97 @Test(expected=Exception.class) public void succeed() throws Exception {98 }99 }100 public void testNoException() {101 TestResult result= new TestResult();102 junit.framework.Test adapter= new JUnit4TestAdapter(NoExceptionTest.class);103 adapter.run(result);104 assertFalse(result.wasSuccessful());105 }106 107 public static class ExpectedTest {108 @Test(expected= Exception.class) public void expected() throws Exception {109 throw new Exception();110 }111 }112 public void testExpected() {113 TestResult result= new TestResult();114 junit.framework.Test adapter= new JUnit4TestAdapter(ExpectedTest.class);115 adapter.run(result);116 assertTrue(result.wasSuccessful());117 }118 119 public static class UnExpectedExceptionTest {120 @Test(expected= Exception.class) public void expected() throws Exception {121 throw new Error();122 }123 }124 125 static String log;126 public static class BeforeClassTest {127 @BeforeClass public static void beforeClass() {128 log+= "before class ";129 }130 @Before public void before() {131 log+= "before ";132 }133 @Test public void one() {134 log+= "test ";135 }136 @Test public void two() {137 log+= "test ";138 }139 @After public void after() {140 log+= "after ";141 }142 @AfterClass public static void afterClass() {143 log+= "after class ";144 }145 }146 147 public void testBeforeAndAfterClass() {148 log= "";149 TestResult result= new TestResult();150 junit.framework.Test adapter= new JUnit4TestAdapter(BeforeClassTest.class);151 adapter.run(result);152 assertEquals("before class before test after before test after after class ", log);153 }154 155 public static class ExceptionInBeforeTest {156 @Before public void error() {157 throw new Error();158 }159 @Test public void nothing() {160 }161 }162 163 public void testExceptionInBefore() {164 TestResult result= new TestResult();165 junit.framework.Test adapter= new JUnit4TestAdapter(ExceptionInBeforeTest.class);166 adapter.run(result);167 assertEquals(1, result.errorCount());168 }169 170 public static class InvalidMethodTest {171 @BeforeClass public void shouldBeStatic() {}172 @Test public void aTest() {}173 }174 175 public void testInvalidMethod() {176 TestResult result= new TestResult();177 junit.framework.Test adapter= new JUnit4TestAdapter(InvalidMethodTest.class);178 adapter.run(result);179 assertEquals(1, result.errorCount()); 180 TestFailure failure= result.errors().nextElement();181 assertTrue(failure.exceptionMessage().contains("Method shouldBeStatic() should be static"));182 }183 184 private static boolean wasRun= false;185 186 public static class MarkerRunner extends Runner {187 public MarkerRunner(Class<?> klass) {188 }189190 @Override191 public void run(RunNotifier notifier) {192 wasRun= true;193 }194
...
Source:664.java
...42 printErrors();43 printFailures();44 }45 /**46 * Prints the errors to the standard output47 */48 public void printErrors() {49 if (errorCount() != 0) {50 if (errorCount() == 1)51 System.out.println("There was " + errorCount() + " error:");52 else53 System.out.println("There were " + errorCount() + " errors:");54 int i = 1;55 for (Enumeration<?> e = errors(); e.hasMoreElements(); i++) {56 TestFailure failure = (TestFailure) e.nextElement();57 System.out.println(i + ") " + failure.failedTest());58 failure.thrownException().printStackTrace();59 System.out.println();60 }61 }62 }63 /**64 * Prints failures to the standard output65 */66 public void printFailures() {67 if (failureCount() != 0) {68 if (failureCount() == 1)69 System.out.println("There was " + failureCount() + " failure:");...
Source:ResultPrinter.java
...38 getWriter().println("Time: "+elapsedTimeAsString(runTime));39 }40 41 protected void printErrors(TestResult result) {42 printDefects(result.errors(), result.errorCount(), "error");43 }44 45 protected void printFailures(TestResult result) {46 printDefects(result.failures(), result.failureCount(), "failure");47 }48 49 protected void printDefects(Enumeration<TestFailure> booBoos, int count, String type) {50 if (count == 0) return;51 if (count == 1)52 getWriter().println("There was " + count + " " + type + ":");53 else54 getWriter().println("There were " + count + " " + type + "s:");55 for (int i= 1; booBoos.hasMoreElements(); i++) {56 printDefect(booBoos.nextElement(), i);...
Source:TextTestResult.java
...42 printErrors();43 printFailures();44 }45 /**46 * Prints the errors to the standard output47 */48 public void printErrors() {49 if (errorCount() != 0) {50 if (errorCount() == 1)51 System.out.println("There was " + errorCount() + " error:");52 else53 System.out.println("There were " + errorCount() + " errors:");54 int i = 1;55 for (Enumeration<?> e = errors(); e.hasMoreElements(); i++) {56 TestFailure failure = (TestFailure) e.nextElement();57 System.out.println(i + ") " + failure.failedTest());58 failure.thrownException().printStackTrace();59 System.out.println();60 }61 }62 }63 /**64 * Prints failures to the standard output65 */66 public void printFailures() {67 if (failureCount() != 0) {68 if (failureCount() == 1)69 System.out.println("There was " + failureCount() + " failure:");...
Source:InitializationErrorForwardCompatibilityTest.java
...53 public void initializationErrorsAreThrownAtRuntime() {54 TestResult result= new TestResult();55 fAdapter.run(result);56 assertEquals(1, result.errorCount());57 assertEquals(CantInitialize.UNIQUE_ERROR_MESSAGE, result.errors()58 .nextElement().exceptionMessage());59 }6061 private final class ErrorRememberingListener implements TestListener {62 private junit.framework.Test fError;6364 public void addError(junit.framework.Test test, Throwable t) {65 fError= test;66 }6768 public void addFailure(junit.framework.Test test,69 AssertionFailedError t) {70 }71
...
Source:342.java
...
errors
Using AI Code Generation
1import junit.framework.TestResult;2import junit.framework.TestSuite;3public class TestRunner {4 public static void main(String[] args) {5 TestResult result = new TestResult();6 TestSuite suite = new TestSuite(TestJunit1.class);7 suite.run(result);8 System.out.println("Number of test cases = " + result.runCount());9 }10}
errors
Using AI Code Generation
1import junit.framework.*;2public class TestResultTest extends TestCase {3 public TestResultTest(String name) { super(name); }4 public static Test suite() {5 return new TestSuite(TestResultTest.class);6 }7 public void testFail() {8 assertTrue(false);9 }10 public void testError() {11 throw new Error();12 }13 public void testFailure() {14 fail();15 }16}171) testFail(junit.framework.TestResultTest)18at junit.framework.TestCase.assertTrue(TestCase.java:155)19at junit.framework.TestCase.assertTrue(TestCase.java:161)20at junit.framework.TestResultTest.testFail(TestResultTest.java:8)21The testFailure() method produces a different output. The
errors
Using AI Code Generation
1import junit.framework.Test;2import junit.framework.TestResult;3import junit.framework.TestSuite;4import junit.textui.TestRunner;5public class TestJunit1 extends TestResult {6 protected int fCount;7 protected long fStartTime;8 public synchronized void addError(Test test, Throwable t) {9 super.addError((Test) test, t);10 fCount++;11 }12 public synchronized void addFailure(Test test, AssertionFailedError t) {13 super.addFailure((Test) test, t);14 fCount++;15 }16 public synchronized void endTest(Test test) {17 super.endTest(test);18 long endTime= System.currentTimeMillis();19 long runTime= endTime - fStartTime;20 System.out.println("Finished in "+runTime+" ms");21 }22 public synchronized void startTest(Test test) {23 super.startTest(test);24 fCount= 0;25 fStartTime= System.currentTimeMillis();26 System.out.println("Running "+test.toString());27 }28 public static Test suite() {29 return new TestSuite(TestJunit1.class);30 }31 public static void main(String[] args) {32 TestRunner runner= new TestRunner();33 TestResult result= runner.doRun(suite(), false);34 System.exit(result.errorCount() + result.failureCount());35 }36}
errors
Using AI Code Generation
1import junit.framework.TestResult;2import junit.framework.TestSuite;3import junit.framework.TestCase;4public class TestRunner extends TestCase {5 public static void main(String[] args) {6 TestResult result = new TestResult();7 TestSuite suite = new TestSuite(TestJunit1.class);8 suite.run(result);9 System.out.println("Number of test cases = " + result.runCount());10 for (int i=0; i<result.failureCount(); i++) {11 System.out.println(result.failures().get(i).toString());12 }13 }14}15 at junit.framework.Assert.fail(Assert.java:47)16 at junit.framework.Assert.failNotEquals(Assert.java:329)17 at junit.framework.Assert.assertEquals(Assert.java:78)18 at junit.framework.Assert.assertEquals(Assert.java:234)19 at junit.framework.Assert.assertEquals(Assert.java:241)20 at TestJunit1.testAdd(TestJunit1.java:12)21 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)22 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)23 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)24 at java.lang.reflect.Method.invoke(Method.java:606)25 at junit.framework.TestCase.runTest(TestCase.java:176)26 at junit.framework.TestCase.runBare(TestCase.java:141)27 at junit.framework.TestResult$1.protect(TestResult.java:122)28 at junit.framework.TestResult.runProtected(TestResult.java:142)29 at junit.framework.TestResult.run(TestResult.java:125)30 at junit.framework.TestCase.run(TestCase.java:129)31 at junit.framework.TestSuite.runTest(TestSuite.java:252)32 at junit.framework.TestSuite.run(TestSuite.java:247)33 at TestRunner.main(TestRunner.java:10)
errors
Using AI Code Generation
1import junit.framework.TestResult2import junit.framework.TestSuite3import junit.framework.Assert4class TestClass1 extends TestCase {5 def testMethod1() {6 Assert.assertEquals(1, 1)7 }8 def testMethod2() {9 Assert.assertEquals(1, 2)10 }11}12def suite = new TestSuite(TestClass1)13def result = new TestResult()14suite.run(result)15result.errors.each {16}17 at junit.framework.Assert.fail(Assert.java:47)18 at junit.framework.Assert.failNotEquals(Assert.java:282)19 at junit.framework.Assert.assertEquals(Assert.java:65)20 at junit.framework.Assert.assertEquals(Assert.java:201)21 at TestClass1.testMethod2(TestClass1.groovy:9)22import junit.framework.TestResult23import junit.framework.TestSuite24import junit.framework.Assert25class TestClass1 extends TestCase {26 def testMethod1() {27 Assert.assertEquals(1, 1)28 }29 def testMethod2() {30 Assert.assertEquals(1, 2)31 }32}33def suite = new TestSuite(TestClass1)34def result = new TestResult()35suite.run(result)36result.errors.each {37 it.exception.stackTrace.findAll { it.methodName == 'testMethod2' }.each {38 }39}40 at junit.framework.Assert.fail(Assert.java:47)41 at junit.framework.Assert.failNotEquals(Assert.java:282)42 at junit.framework.Assert.assertEquals(Assert.java:65)43 at junit.framework.Assert.assertEquals(Assert.java:201)44 at TestClass1.testMethod2(TestClass1.groovy:9)
errors
Using AI Code Generation
1import junit.framework.TestResult;2import junit.framework.TestSuite;3import junit.framework.Assert;4public class TestRunner {5 public static void main(String[] args) {6 TestSuite suite = new TestSuite(TestJunit.class);7 TestResult result = new TestResult();8 suite.run(result);9 System.out.println("Number of test cases = " + result.runCount());10 System.out.println("Number of test cases = " + result.errorCount());11 }12}13Example 2: Using errors() method of junit.framework.TestResult class to get the error message of the failed test case14package com.journaldev.junit;15import junit.framework.TestCase;16public class TestJunit extends TestCase {17 protected int value1, value2;18 protected void setUp(){19 value1 = 3;20 value2 = 3;21 }22 public void testAdd(){23 double result = value1 + value2;24 assertTrue(result == 6);25 }26}27 at junit.framework.Assert.fail(Assert.java:50)28 at junit.framework.Assert.failNotEquals(Assert.java:287)29 at junit.framework.Assert.assertEquals(Assert.java:67)30 at junit.framework.Assert.assertEquals(Assert.java:74)31 at junit.framework.TestCase.assertEquals(TestCase.java:252)32 at com.journaldev.junit.TestJunit.testAdd(TestJunit.java:17)33 at junit.framework.TestCase.runTest(TestCase.java:168)34 at junit.framework.TestCase.runBare(TestCase.java:134)35 at junit.framework.TestResult$1.protect(TestResult.java:110)36 at junit.framework.TestResult.runProtected(TestResult.java:128)37 at junit.framework.TestResult.run(TestResult.java:113)38 at junit.framework.TestCase.run(TestCase.java:124)39 at junit.framework.TestSuite.runTest(TestSuite.java:243)40 at junit.framework.TestSuite.run(TestSuite.java:238)41 at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)42 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)43 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution
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.
Run junit automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used method in TestResult
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
