How to use getFailures method of org.junit.runners.model.MultipleFailureException class

Best junit code snippet using org.junit.runners.model.MultipleFailureException.getFailures

MultipleFailureException`org.junit.runners.model.MultipleFailureException`

It happens when Junit runner recognize many failures and collect them into one.

Code Snippets

Here are code snippets that can help you understand more how developers are using

Source:MultipleFailureException.java

...19  }20  @Override21  public String getMessage() {22    StringBuilder sb = new StringBuilder();23    List<Throwable> errors = getFailures();24    sb.append(String.format("There were %d errors:", errors.size()));25    int i = 0;26    for (Throwable e : errors) {27      sb.append(String.format("%n---- Error #%d", i));28      sb.append("\n" + getStackTraceAsString(e));29      i++;30    }31    sb.append("\n");32    return sb.toString();33  }34  private static String getStackTraceAsString(Throwable throwable) {35    StringWriter stringWriter = new StringWriter();36    throwable.printStackTrace(new PrintWriter(stringWriter));37    return stringWriter.toString();...

getFailures

Using AI Code Generation

1import org.junit.runner.JUnitCore;2import org.junit.runner.Result;3import org.junit.runner.notification.Failure;4import java.util.List;5public class TestRunner {6    public static void main(String[] args) {7        Result result = JUnitCore.runClasses(TestJunit.class);8        List<Failure> failures = result.getFailures();9        for (Failure failure : failures) {10            System.out.println(failure.toString());11        }12        System.out.println(result.wasSuccessful());13    }14}15    at org.junit.Assert.assertEquals(Assert.java:115)16    at org.junit.Assert.assertEquals(Assert.java:144)17    at TestJunit.testAdd(TestJunit.java:11)18    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)20    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21    at java.lang.reflect.Method.invoke(Method.java:498)22    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)23    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)24    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)25    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)26    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)27    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)28    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)29    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)30    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)31    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)32    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)33    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)34    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)35    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)36    at org.junit.runner.JUnitCore.run(JUnitCore.java:115)

getFailures

Using AI Code Generation

1import org.junit.Assert;2import org.junit.Test;3import org.junit.runner.JUnitCore;4import org.junit.runner.Result;5import org.junit.runner.notification.Failure;6import java.util.List;7public class TestRunner {8    public static void main(String[] args) {9        Result result = JUnitCore.runClasses(TestRunner.class);10        for (Failure failure : result.getFailures()) {11            System.out.println(failure.toString());12        }13        System.out.println(result.wasSuccessful());14    }15    public void testAssertArrayEquals() {16        byte[] expected = "trial".getBytes();17        byte[] actual = "trial".getBytes();18        Assert.assertArrayEquals("failure - byte arrays not same", expected, actual);19    }20    public void testAssertEquals() {21        Assert.assertEquals("failure - strings are not equal", "text", "text");22    }23    public void testAssertFalse() {24        Assert.assertFalse("failure - should be false", false);25    }26    public void testAssertNotNull() {27        Assert.assertNotNull("should not be null", new Object());28    }29    public void testAssertNotSame() {30        Assert.assertNotSame("should not be same Object", new Object(), new Object());31    }32    public void testAssertNull() {33        Assert.assertNull("should be null", null);34    }35    public void testAssertSame() {36        Integer aNumber = Integer.valueOf(768);37        Assert.assertSame("should be same", aNumber, aNumber);38    }39    public void testAssertTrue() {40        Assert.assertTrue("failure - should be true", true);41    }42    public void testAssertFail() {43        Assert.fail("failure - should not happen");44    }45}

getFailures

Using AI Code Generation

1package com.mkyong.common;2import org.junit.Test;3import org.junit.runner.JUnitCore;4import org.junit.runner.Result;5import org.junit.runner.RunWith;6import org.junit.runners.model.MultipleFailureException;7import java.util.List;8import static org.junit.Assert.assertEquals;9public class JunitTestMultipleFailureException {10    @RunWith(MyRunner.class)11    public static class MyTest {12        public void test1() {13            assertEquals(1, 2);14        }15        public void test2() {16            assertEquals(1, 2);17        }18        public void test3() {19            assertEquals(1, 2);20        }21    }22    public static class MyRunner extends org.junit.runners.BlockJUnit4ClassRunner {23        public MyRunner(Class<?> klass) throws Throwable {24            super(klass);25        }26        protected void runChild(org.junit.runners.model.FrameworkMethod method,27                                org.junit.runner.notification.RunNotifier notifier) {28            try {29                super.runChild(method, notifier);30            } catch (MultipleFailureException e) {31                List<Throwable> failures = e.getFailures();32                for (Throwable throwable : failures) {33                    System.out.println(throwable.getMessage());34                }35            }36        }37    }38    public static void main(String[] args) {39        Result result = JUnitCore.runClasses(MyTest.class);40        System.out.println(result.wasSuccessful());41    }42}

getFailures

Using AI Code Generation

1package org.junit.runner.notification;2import java.util.List;3import org.junit.runner.Description;4import org.junit.runner.notification.Failure;5public class MultipleFailureException extends RuntimeException {6    private static final long serialVersionUID = 1L;7    private final List<Throwable> fFailures;8    public MultipleFailureException(List<Throwable> failures) {9        fFailures = failures;10    }11    public List<Throwable> getFailures() {12        return fFailures;13    }14    public String getMessage() {15        StringBuilder sb = new StringBuilder();16        sb.append("There were ").append(fFailures.size()).append(" failures:");17        for (Throwable each : fFailures) {18            sb.append("1) ").append(each.getMessage());19        }20        return sb.toString();21    }22    public void printStackTrace() {23        printStackTrace(System.err);24    }25    public void printStackTrace(java.io.PrintStream writer) {26        synchronized (writer) {27            for (Throwable each : fFailures) {28                each.printStackTrace(writer);29                writer.println();30            }31        }32    }33    public void printStackTrace(java.io.PrintWriter writer) {34        synchronized (writer) {35            for (Throwable each : fFailures) {36                each.printStackTrace(writer);37                writer.println();38            }39        }40    }41    public static void assertEmpty(List<Throwable> errors) {42        if (!errors.isEmpty()) {43            throw new MultipleFailureException(errors);44        }45    }46    public static void assertEmpty(List<Failure> failures, Description description) {47        if (!failures.isEmpty()) {48            throw new MultipleFailureException(failures, description);49        }50    }51    public MultipleFailureException(List<Failure> failures, Description description) {52        fFailures = new java.util.ArrayList<Throwable>();53        for (Failure each : failures) {54            fFailures.add(new Exception(description + ": " + each.getMessage(), each.getException()));55        }56    }57}

getFailures

Using AI Code Generation

1import org.junit.runners.model.MultipleFailureException;2import org.junit.runners.model.Statement;3public class MultipleFailureExceptionTest {4    public static void main(String[] args) {5        MultipleFailureExceptionTest multipleFailureExceptionTest = new MultipleFailureExceptionTest();6        multipleFailureExceptionTest.testGetFailures();7    }8    public void testGetFailures() {9        try {10            Statement statement = new Statement() {11                public void evaluate() throws Throwable {12                    throw new Exception("exception 1");13                }14            };15            statement.evaluate();16        } catch (Throwable e) {17            try {18                Statement statement = new Statement() {19                    public void evaluate() throws Throwable {20                        throw new Exception("exception 2");21                    }22                };23                statement.evaluate();24            } catch (Throwable e2) {25                try {26                    Statement statement = new Statement() {27                        public void evaluate() throws Throwable {28                            throw new Exception("exception 3");29                        }30                    };31                    statement.evaluate();32                } catch (Throwable e3) {33                    MultipleFailureException multipleFailureException = new MultipleFailureException(Arrays.asList(e, e2, e3));34                    List<Throwable> failures = multipleFailureException.getFailures();35                    for (Throwable throwable : failures) {36                        System.out.println(throwable.getMessage());37                    }38                }39            }40        }41    }42}

getFailures

Using AI Code Generation

1MultipleFailureException mfe = new MultipleFailureException(Arrays.asList(new Exception("first exception"), new Exception("second exception")));2List<Throwable> failures = mfe.getFailures();3Failure failure = new Failure(null, new Exception("exception"));4List<Throwable> failures = failure.getException().getFailures();5JUnitCore junit = new JUnitCore();6junit.addListener(new RunListener() {7    public void testFailure(Failure failure) throws Exception {8        List<Throwable> failures = failure.getException().getFailures();9    }10});11junit.run(SampleTest.class);12JUnitCore junit = new JUnitCore();13Result result = junit.run(SampleTest.class);14List<Throwable> failures = result.getFailures();15org.junit.runners.model.MultipleFailureException.getFailures()16org.junit.runner.notification.Failure.getException()17org.junit.runner.JUnitCore.addListener()18org.junit.runner.Result.getFailures()

getFailures

Using AI Code Generation

1import org.junit.runners.model.MultipleFailureException;2import org.junit.runners.model.TestTimedOutException;3import org.junit.runners.model.TestClass;4import org.junit.runner.notification.Failure;5import org.junit.runner.notification.RunNotifier;6import org.junit.runner.Description;7import org.junit.runner.Result;8import org.junit.runner.Runner;9import org.junit.runner.notification.RunListener;10import org.junit.runners.BlockJUnit4ClassRunner;11import org.junit.runners.model.InitializationError;12import org.junit.runners.model.Statement;13import java.lang.reflect.InvocationTargetException;14import java.lang.reflect.Method;15import java.util.List;16import java.util.ArrayList;17import java.util.Arrays;18import java.util.concurrent.TimeUnit;19import java.util.concurrent.TimeoutException;20import java.util.concurrent.atomic.AtomicReference;21import java.util.logging.Level;22import java.util.logging.Logger;23import static java.util.concurrent.TimeUnit.MILLISECONDS;24import static java.util.concurrent.TimeUnit.NANOSECONDS;25public class JUnit4TestRunner extends BlockJUnit4ClassRunner {26    public JUnit4TestRunner(Class<?> klass) throws InitializationError {27        super(klass);28    }29    public Description getDescription() {30        return super.getDescription();31    }32    public void run(RunNotifier notifier) {33        super.run(notifier);34    }35    protected Statement methodInvoker(FrameworkMethod method, Object test) {36        return super.methodInvoker(method, test);37    }38    protected Statement withPotentialTimeout(FrameworkMethod method, Object test, Statement next) {39        return super.withPotentialTimeout(method, test, next);40    }41    protected void runChild(FrameworkMethod method, RunNotifier notifier) {42        super.runChild(method, notifier);43    }44    protected void validateTestMethods(List<Throwable> errors) {45        super.validateTestMethods(errors);46    }47    protected void validatePublicVoidNoArgMethods(Class<? extends Annotation> annotation, boolean isStatic, List<Throwable> errors) {48        super.validatePublicVoidNoArgMethods(annotation, isStatic, errors);49    }50    protected List<FrameworkMethod> computeTestMethods() {51        return super.computeTestMethods();52    }53    protected void collectInitializationErrors(List<Throwable> errors) {54        super.collectInitializationErrors(errors);55    }

getFailures

Using AI Code Generation

1import java.util.List;2import org.junit.runner.JUnitCore;3import org.junit.runner.Result;4import org.junit.runner.notification.Failure;5import org.junit.runners.model.MultipleFailureException;6public class TestRunner {7    public static void main(String[] args) {8        Result result = JUnitCore.runClasses(TestJunit.class);9        List<Failure> failures = result.getFailures();10        System.out.println("Failures: " + failures);11        System.out.println("Failures: " + failures.get(0).getException());12        System.out.println("Failures: " + failures.get(1).getException());13        System.out.println("Failures: " + failures.get(2).getException());14        System.out.println("Failures: " + failures.get(3).getException());15        System.out.println("Failures: " + failures.get(4).getException());16        System.out.println("Failures: " + failures.get(5).getException());17        System.out.println("Failures: " + failures.get(6).getException());18        System.out.println("Failures: " + failures.get(7).getException());19        System.out.println("Failures: " + failures.get(8).getException());20        System.out.println("Failures: " + failures.get(9).getException());21        System.out.println("Failures: " + failures.get(10).getException());22        System.out.println("Failures: " + failures.get(11).getException());23        System.out.println("Failures: " + failures.get(12).getException());24        System.out.println("Failures: " + failures.get(13).getException());25        System.out.println("Failures: " + failures.get(14).getException());26        System.out.println("Failures: " + failures.get(15).getException());27        System.out.println("Failures: " + failures.get(16).getException());28        System.out.println("Failures: " + failures.get(17).getException());29        System.out.println("Failures: " + failures.get(18).getException());30        System.out.println("Failures: " + failures.get(19).getException());31        System.out.println("Failures: " + failures.get(20).getException());

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.