Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use trace method of junit.framework.TestFailure class

Best junit code snippet using junit.framework.TestFailure.trace

Source:UIMAResultPrinter.java

...107  @Override108  protected void printDefectHeader(TestFailure booBoo, int count) {109    // I feel like making this a println, then adding a line giving the throwable a chance to print110    // something111    // before we get to the stack trace.112    getWriter().print(count + ") " + booBoo.failedTest());113  }114  /**115   * @see junit.textui.ResultPrinter#printDefectTrace(junit.framework.TestFailure)116   */117  @Override118  protected void printDefectTrace(TestFailure booBoo) {119    getWriter().print(BaseTestRunner.getFilteredTrace(booBoo.trace()));120  }121  /**122   * @see junit.textui.ResultPrinter#printFooter(junit.framework.TestResult)123   */124  @Override125  protected void printFooter(TestResult result) {126    if (result.wasSuccessful()) {127      getWriter().println();128      getWriter().print("OK");129      getWriter().println(130              " (" + result.runCount() + " test" + (result.runCount() == 1 ? "" : "s") + ")");131    } else {132      getWriter().println();133      getWriter().println("FAILURES!!!");134      getWriter().println("Tests run: " + result.runCount() + ",  Failures: "135              + result.failureCount() + ",  Errors: " + result.errorCount());136    }137    getWriter().println();138  }139  /**140   * Returns the formatted string of the elapsed time. Duplicated from BaseTestRunner. Fix it.141   */142  @Override143  protected String elapsedTimeAsString(long runTime) {144    return NumberFormat.getInstance().format((double) runTime / 1000);145  }146  /**147   * @see junit.textui.ResultPrinter#getWriter()148   */149  @Override150  public PrintStream getWriter() {151    return this.fWriter;152  }153  /**154   * @see junit.framework.TestListener#addError(Test, Throwable)155   */156  @Override157  public void addError(Test test, Throwable t) {158    getWriter().print("error");159    this.currentTestSuccess = false;160    if (this.abortOnFail) {161      getWriter().println();162      getWriter().println();163      getWriter().println("Stop executing testcases...");164      getWriter().println("Print Stacktrace: ");165      getWriter().println();166      StackTraceElement[] stackTrace = t.getStackTrace();167      for (int i = 0; i < stackTrace.length; i++) {168        getWriter().println(stackTrace[i].toString());169      }170      throw new RuntimeException("Abort on error");171    }172  }173  /**174   * @see junit.framework.TestListener#addFailure(Test, AssertionFailedError)175   */176  @Override177  public void addFailure(Test test, AssertionFailedError t) {178    getWriter().print("failure");179    this.currentTestSuccess = false;180    if (this.abortOnFail) {181      getWriter().println();182      getWriter().println();183      getWriter().println("Stop executing testcases...");184      getWriter().println("Print Stacktrace: ");185      getWriter().println();186      StackTraceElement[] stackTrace = t.getStackTrace();187      for (int i = 0; i < stackTrace.length; i++) {188        getWriter().println(stackTrace[i].toString());189      }190      throw new RuntimeException("Abort on failure");191    }192  }193  /**194   * @see junit.framework.TestListener#endTest(Test)195   */196  @Override197  public void endTest(Test test) {198    if (this.currentTestSuccess == false)...

Source:ResultPrinter.java

...62		printDefectTrace(booBoo);63	}64	protected void printDefectHeader(TestFailure booBoo, int count) {65		// I feel like making this a println, then adding a line giving the throwable a chance to print something66		// before we get to the stack trace.67		getWriter().print(count + ") " + booBoo.failedTest());68	}69	protected void printDefectTrace(TestFailure booBoo) {70		getWriter().print(BaseTestRunner.getFilteredTrace(booBoo.trace()));71	}72	protected void printFooter(TestResult result) {73		if (result.wasSuccessful()) {74			getWriter().println();75			getWriter().print("OK");76			getWriter().println (" (" + result.runCount() + " test" + (result.runCount() == 1 ? "": "s") + ")");77		} else {78			getWriter().println();79			getWriter().println("FAILURES!!!");80			getWriter().println("Tests run: "+result.runCount()+ 81				         ",  Failures: "+result.failureCount()+82				         ",  Errors: "+result.errorCount());83		}84	    getWriter().println();...

trace

Using AI Code Generation

1import junit.framework.Test;2import junit.framework.TestResult;3import junit.framework.TestFailure;4import junit.framework.TestCase;5public class TestFailureTrace extends TestCase {6   public static Test suite() {7      return new TestSuite(TestFailureTrace.class);8   }9   public void testFailure() {10      assertTrue(false);11   }12   public static void main(String args[]) {13      TestResult result = new TestResult();14      Test test = new TestFailureTrace("testFailure");15      test.run(result);16      System.out.println(result.failures().nextElement().trace());17   }18}19at junit.framework.Assert.fail(Assert.java:47)20at junit.framework.Assert.assertTrue(Assert.java:20)21at junit.framework.Assert.assertTrue(Assert.java:27)22at TestFailureTrace.testFailure(TestFailureTrace.java:14)23at TestFailureTrace.runBare(TestFailureTrace.java:26)24at TestFailureTrace.run(TestFailureTrace.java:31)25at junit.framework.TestCase.run(TestCase.java:124)26at junit.framework.TestSuite.runTest(TestSuite.java:232)27at junit.framework.TestSuite.run(TestSuite.java:227)28at junit.textui.TestRunner.doRun(TestRunner.java:92)29at junit.textui.TestRunner.run(TestRunner.java:74)30at junit.textui.TestRunner.main(TestRunner.java:55)31Java JUnit TestFailure trace() Method

trace

Using AI Code Generation

1public class TestFailureTrace {2    public static void main(String[] args) {3        TestSuite suite = new TestSuite();4        suite.addTest(new TestFailureTrace("testFailureTrace"));5        TestResult result = new TestResult();6        suite.run(result);7        System.out.println("Number of test cases = " + result.runCount());8    }9    public void testFailureTrace() {10        fail("Failure message");11    }12}13    at TestFailureTrace.testFailureTrace(TestFailureTrace.java:16)14    at junit.framework.TestCase.runTest(TestCase.java:154)15    at junit.framework.TestCase.runBare(TestCase.java:127)16    at junit.framework.TestResult$1.protect(TestResult.java:106)17    at junit.framework.TestResult.runProtected(TestResult.java:124)18    at junit.framework.TestResult.run(TestResult.java:109)19    at junit.framework.TestCase.run(TestCase.java:118)20    at junit.framework.TestSuite.runTest(TestSuite.java:208)21    at junit.framework.TestSuite.run(TestSuite.java:203)22    at junit.textui.TestRunner.doRun(TestRunner.java:110)23    at junit.textui.TestRunner.run(TestRunner.java:83)24    at junit.textui.TestRunner.main(TestRunner.java:49)

trace

Using AI Code Generation

1import junit.framework.TestFailure;2import junit.framework.TestResult;3import junit.framework.TestSuite;4import junit.textui.TestRunner;5public class TestRunner {6    public static void main(String[] args) {7        TestResult result = new TestResult();8        TestSuite suite = new TestSuite(TestJunit.class);9        suite.run(result);10        System.out.println("Number of test cases = " + result.runCount());11        for (TestFailure failure : result.failures()) {12            System.out.println(failure.trace());13        }14    }15}16    at junit.framework.Assert.fail(Assert.java:50)17    at junit.framework.Assert.failNotEquals(Assert.java:287)18    at junit.framework.Assert.assertEquals(Assert.java:67)19    at junit.framework.Assert.assertEquals(Assert.java:74)20    at TestJunit.testAdd(TestJunit.java:15)21    at java.lang.reflect.Method.invoke(Native Method)22    at java.lang.reflect.Method.invoke(Method.java:498)23    at junit.framework.TestCase.runTest(TestCase.java:176)24    at junit.framework.TestCase.runBare(TestCase.java:141)25    at junit.framework.TestResult$1.protect(TestResult.java:122)26    at junit.framework.TestResult.runProtected(TestResult.java:142)27    at junit.framework.TestResult.run(TestResult.java:125)28    at junit.framework.TestCase.run(TestCase.java:129)29    at junit.framework.TestSuite.runTest(TestSuite.java:252)30    at junit.framework.TestSuite.run(TestSuite.java:247)31    at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)32    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)33    at org.junit.runner.JUnitCore.run(JUnitCore.java:115)34    at org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:43)35    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)36    at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)37    at java.util.Iterator.forEachRemaining(Iterator.java:116)38    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)39    at java.util.stream.AbstractPipeline.copyInto(Abstract

trace

Using AI Code Generation

1public class TestFailureTrace {2    public static void main(String[] args) {3        TestRunner runner = new TestRunner();4        TestResult result = runner.doRun(new TestSuite(JUnit3Test.class));5        TestFailure failure = result.failures().nextElement();6        System.out.println(failure.trace());7    }8}9    at JUnit3Test.testAssertEquals(JUnit3Test.java:13)10    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)11    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)12    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)13    at java.lang.reflect.Method.invoke(Method.java:498)14    at junit.framework.TestCase.runTest(TestCase.java:176)15    at junit.framework.TestCase.runBare(TestCase.java:141)16    at junit.framework.TestResult$1.protect(TestResult.java:122)17    at junit.framework.TestResult.runProtected(TestResult.java:142)18    at junit.framework.TestResult.run(TestResult.java:125)19    at junit.framework.TestCase.run(TestCase.java:129)20    at junit.framework.TestSuite.runTest(TestSuite.java:252)21    at junit.framework.TestSuite.run(TestSuite.java:247)22    at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)23    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)24    at org.junit.runner.JUnitCore.run(JUnitCore.java:115)25    at org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:43)26    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)27    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)28    at java.util.Iterator.forEachRemaining(Iterator.java:116)29    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)30    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)31    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)32    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)33    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)

trace

Using AI Code Generation

1import static org.junit.Assert.assertEquals;2import org.junit.Test;3public class TestFailureTraceExample {4    public void test() {5        assertEquals("Hello World", "Hello World");6    }7}8[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ TestFailureTraceExample ---9[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ TestFailureTraceExample ---10[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ TestFailureTraceExample ---11[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ TestFailureTraceExample ---12[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ TestFailureTraceExample ---

trace

Using AI Code Generation

1import junit.framework.TestFailure;2import junit.framework.TestResult;3import junit.framework.TestSuite;4import org.junit.runner.JUnitCore;5public class TestResultExample {6    public static void main(String[] args) {7        TestResult result = JUnitCore.runClasses(TestResultExample.class);8        for (TestFailure failure : result.failures()) {9            System.out.println(failure.trace());10        }11    }12}13at org.junit.Assert.fail(Assert.java:88)14at org.junit.Assert.failNotEquals(Assert.java:834)15at org.junit.Assert.assertEquals(Assert.java:645)16at org.junit.Assert.assertEquals(Assert.java:631)17at com.mkyong.TestResultExample.testResult(TestResultExample.java:21)18at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)20at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21at java.lang.reflect.Method.invoke(Method.java:498)22at junit.framework.TestCase.runTest(TestCase.java:176)23at junit.framework.TestCase.runBare(TestCase.java:141)24at junit.framework.TestResult$1.protect(TestResult.java:122)25at junit.framework.TestResult.runProtected(TestResult.java:142)26at junit.framework.TestResult.run(TestResult.java:125)27at junit.framework.TestCase.run(TestCase.java:129)28at junit.framework.TestSuite.runTest(TestSuite.java:255)29at junit.framework.TestSuite.run(TestSuite.java:250)30at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:90)31at org.junit.runners.Suite.runChild(Suite.java:128)32at org.junit.runners.Suite.runChild(Suite.java:27)33at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)34at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)35at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)36at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)37at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)38at org.junit.runners.ParentRunner.run(ParentRunner.java:363)39at org.junit.runner.JUnitCore.run(JUnitCore.java:

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.