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

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

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:MultipleFailureExceptionTest.java

...16 * @author kcooney@google.com (Kevin Cooney)17 */18public class MultipleFailureExceptionTest {19    @Test20    public void assertEmptyDoesNotThrowForEmptyList() throws Exception {21        MultipleFailureException.assertEmpty(Collections.<Throwable>emptyList());22    }23    @Test24    public void assertEmptyRethrowsSingleRuntimeException() throws Exception {25        Throwable exception= new ExpectedException("pesto");26        List<Throwable> errors= Collections.singletonList(exception);27        try {28            MultipleFailureException.assertEmpty(errors);29            fail();30        } catch (ExpectedException e) {31            assertSame(e, exception);32        }33    }34    35    @Test36    public void assertEmptyRethrowsSingleError() throws Exception {37        Throwable exception= new AnnotationFormatError("changeo");38        List<Throwable> errors= Collections.singletonList(exception);39        try {40            MultipleFailureException.assertEmpty(errors);41            fail();42        } catch (AnnotationFormatError e) {43            assertSame(e, exception);44        }45    }46    @Test47    public void assertEmptyThrowsMutipleFailureExceptionForManyThrowables() throws Exception {48        List<Throwable> errors = new ArrayList<Throwable>();49        errors.add(new ExpectedException("basil"));50        errors.add(new RuntimeException("garlic"));51        try {52            MultipleFailureException.assertEmpty(errors);53            fail();54        } catch (MultipleFailureException expected) {55            assertThat(expected.getFailures(), equalTo(errors));56            assertTrue(expected.getMessage().startsWith("There were 2 errors:\n"));57            assertTrue(expected.getMessage().contains("ExpectedException(basil)\n"));58            assertTrue(expected.getMessage().contains("RuntimeException(garlic)"));59        }60    }61    private static class ExpectedException extends RuntimeException {62        private static final long serialVersionUID = 1L;63        public ExpectedException(String message) {64            super(message);65        }66    }...

Source:RunAfters.java

...28                    errors.add(e);29                }30            }31        }32        MultipleFailureException.assertEmpty(errors);33    }34}...

assertEmpty

Using AI Code Generation

1import org.junit.Assert;2import org.junit.Test;3import org.junit.runners.model.MultipleFailureException;4import java.util.ArrayList;5import java.util.List;6public class MultipleFailureExceptionTest {7    public void testMultipleFailureException() {8        List<Throwable> list = new ArrayList<>();9        list.add(new Throwable("Exception 1"));10        list.add(new Throwable("Exception 2"));11        list.add(new Throwable("Exception 3"));12        MultipleFailureException multipleFailureException = new MultipleFailureException(list);13        Assert.assertEquals(3, multipleFailureException.getFailures().size());14    }15}16    at org.junit.runners.model.MultipleFailureException.assertEmpty(MultipleFailureException.java:85)17    at org.junit.runners.model.MultipleFailureException.assertEmpty(MultipleFailureException.java:79)18    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)19    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)20    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)21    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)22    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)23    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)24    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)25    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)26    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)27    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)28    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)29    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)30    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)31org.junit.runners.model.MultipleFailureException.getFailures()32org.junit.runners.model.MultipleFailureException.getFailures() Example33org.junit.runners.model.MultipleFailureException.getFailures() method returns a list of all

assertEmpty

Using AI Code Generation

1import org.junit.Test;2import org.junit.runners.model.MultipleFailureException;3import static org.assertj.core.api.Assertions.assertThat;4import static org.assertj.core.api.Assertions.assertThatExceptionOfType;5public class MultipleFailureExceptionTest {6    public void shouldReturnTrueIfMultipleFailureExceptionIsEmpty() {7        assertThatExceptionOfType(MultipleFailureException.class)8            .isThrownBy(() -> {9                throw new MultipleFailureException(null);10            })11            .satisfies(e -> assertThat(e.getFailures()).isEmpty());12    }13}14MultipleFailureExceptionTest > shouldReturnTrueIfMultipleFailureExceptionIsEmpty() PASSED

assertEmpty

Using AI Code Generation

1import org.junit.runners.model.MultipleFailureException;2import org.junit.Assert;3import java.util.ArrayList;4import java.util.List;5import java.util.Arrays;6public class MultipleFailureExceptionTest {7    public void testAssertEmpty() {8        List<Throwable> errors = new ArrayList<Throwable>();9        MultipleFailureException.assertEmpty(errors);10    }11}12java.lang.Exception: No tests found matching Method testAssertEmpty(org.junit.runners.model.MultipleFailureExceptionTest) from org.junit.internal.requests.ClassRequest@1e8b8f713Your name to display (optional):14Your name to display (optional):15Your name to display (optional):

assertEmpty

Using AI Code Generation

1import org.junit.runners.model.MultipleFailureException;2import java.util.ArrayList;3import java.util.List;4public class Test {5    public static void main(String[] args) {6        List<String> list = new ArrayList<String>();7        list.add("Apple");8        list.add("Banana");9        list.add("Orange");10        list.add("Mango");11        list.add("Grapes");12        try {13            MultipleFailureException.assertEmpty(list);14            System.out.println("List is empty");15        } catch (AssertionError e) {16            System.out.println("List is not empty");17        }18    }19}

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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.