Best junit code snippet using org.junit.runners.model.MultipleFailureException.assertEmpty
org.junit.runners.model.MultipleFailureException
It happens when Junit runner recognize many failures and collect them into one.
Here are code snippets that can help you understand more how developers are using
...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}
AssertContains on strings in jUnit
junit assertEquals ignore case
Difference between junit-vintage-engine and junit-jupiter-engine?
Mock a constructor with parameter
Can Selenium take a screenshot on test failure with JUnit?
How to run JUnit tests by category in Maven?
Testing for multiple exceptions with JUnit 4 annotations
Exception in thread "main" java.lang.NoClassDefFoundError: junit/textui/ResultPrinter
How do I ignore certain elements when comparing XML?
Java JUnit: The method X is ambiguous for type Y
If you add in Hamcrest and JUnit4, you could do:
String x = "foo bar";
Assert.assertThat(x, CoreMatchers.containsString("foo"));
With some static imports, it looks a lot better:
assertThat(x, containsString("foo"));
The static imports needed would be:
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.CoreMatchers.containsString;
Check out the latest blogs from LambdaTest on this topic:
In today’s digital age, product teams must build products at a brisk pace while maintaining the best quality. Therefore, the methodology to follow and the tool selection to accomplish this can be paramount to get better results. Moreover, software applications don’t just support businesses now; rather, they have become an integral part of a business. Hence, it’s obvious that the product teams deliver a product with speed, reliability, scale, security, quality, and improved collaboration. So companies started following the DevOps model, which is a combination of Development (Dev) and Operations (Ops) teams.
So you are at the beginning of 2020 and probably have committed a new year resolution as a tester to take a leap from Manual Testing To Automation . However, to automate your test scripts you need to get your hands dirty on a programming language and that is where you are stuck! Or you are already proficient in automation testing through a single programming language and are thinking about venturing into new programming languages for automation testing, along with their respective frameworks. You are bound to be confused about picking your next milestone. After all, there are numerous programming languages to choose from.
Both JUnit and TestNG are popular unit testing frameworks that have been widely accepted by Java developers. JUnit was introduced as an open-source unit testing framework for Java way back in 1997. In fact, JUnit is one of the widely used test automation frameworks for test automation. TestNG is another Java-based test automation framework that is not only open-source but also offers awesome features that are best suited for large-scale web automation testing. TestNG was created for a range of testing categories, including (but not limited to) unit testing, functional testing, end-to-end testing, and integration testing.
CI/CD pipelines are here to stay and contribute tremendously to continuous integration and delivery across all global projects. This article will be a guide to configure, set up builds and tests with “GitHub Actions”, primarily using Selenium WebDriver. This article shall also cover some of the most generic GitHub Actions examples, and user flows.
This article is a part of our Content Hub. For more in-depth resources, check out our content hub on 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.
Here are the detailed JUnit testing chapters to help you get started:
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.
Get 100 minutes of automation test minutes FREE!!