Best junit code snippet using org.junit.runners.BlockJUnit4Runner.getChildren
getChildren
Using AI Code Generation
1import org.junit.runner.JUnitCore2import org.junit.runner.Request3import org.junit.runner.Runner4import org.junit.runner.notification.RunNotifier5import org.junit.runners.BlockJUnit4Runner6import org.junit.runners.model.InitializationError7import java.lang.reflect.Method8import java.lang.reflect.Modifier9import java.util.ArrayList10class TestMethodRunner extends Runner {11 TestMethodRunner(String className, String methodName) {12 try {13 Class<?> clazz = Class.forName(className)14 runner = new BlockJUnit4Runner(clazz)15 method = clazz.getMethod(methodName)16 } catch (ClassNotFoundException e) {17 throw new RuntimeException(e)18 } catch (NoSuchMethodException e) {19 throw new RuntimeException(e)20 } catch (InitializationError e) {21 throw new RuntimeException(e)22 }23 }24 String getName() {25 }26 Description getDescription() {27 return runner.getDescription()28 }29 void run(RunNotifier notifier) {30 runner.runChild(method, notifier)31 }32}33class TestMethodRunnerFactory {34 static Runner create(String className, String methodName) {35 return new TestMethodRunner(className, methodName)36 }37}38def createRequest(String className, String methodName) {39 return Request.runner(TestMethodRunnerFactory, className, methodName)40}41def runTest(String className, String methodName) {42 JUnitCore.runClasses(createRequest(className, methodName))43}44def getChildren(String className) {45 try {46 Class<?> clazz = Class.forName(className)47 BlockJUnit4Runner runner = new BlockJUnit4Runner(clazz)48 return runner.getChildren()49 } catch (ClassNotFoundException e) {50 throw new RuntimeException(e)51 } catch (InitializationError e) {52 throw new RuntimeException(e)53 }54}55def getMethods(String className) {56 try {57 Class<?> clazz = Class.forName(className)58 } catch (ClassNotFoundException e) {59 throw new RuntimeException(e)60 }61}62def getTestMethodNames(String className) {63 def methods = getMethods(className)64 def testMethods = methods.findAll { it.name.startsWith("test") }65}66def getTestMethodNames(String className, String methodName
getChildren
Using AI Code Generation
1import org.junit.runner.JUnitCore2import org.junit.runner.Request3import org.junit.runner.Result4import org.junit.runner.notification.RunListener5import org.junit.runner.Description6import org.junit.runner.Runner7import org.junit.runners.BlockJUnit4ClassRunner8import org.junit.runners.model.InitializationError9import org.junit.runners.model.FrameworkMethod10import org.junit.runners.ParentRunner11import org.junit.runners.model.Statement12import org.junit.runners.model.FrameworkField13import java.lang.reflect.Method14import java.lang.reflect.Modifier15import java.util.ArrayList16import java.util.List17import java.util.Collections18import java.util.Comparator19import org.junit.runner.Description20import org.junit.runner.notification.RunNotifier21import org.junit.runners.model.FrameworkMethod22import org.junit.runners.model.InitializationError23import org.junit.runners.model.Statement24import java.lang.reflect.Constructor25import java.lang.reflect.Method26import java.lang.reflect.Modifier27import java.util.ArrayList28import java.util.List29import java.util.Collections30import java.util.Comparator31import org.junit.runner.Description32import org.junit.runner.notification.RunNotifier33import org.junit.runners.model.FrameworkMethod34import org.junit.runners.model.InitializationError35import org.junit.runners.model.Statement36import java.lang.reflect.Constructor37import java.lang.reflect.Method38import java.lang.reflect.Modifier39import java.util.ArrayList40import java.util.List41import java.util.Collections42import java.util.Comparator43import org.junit.runner.Description44import org.junit.runner.notification.RunNotifier45import org.junit.runners.model.FrameworkMethod46import org.junit.runners.model.InitializationError47import org.junit.runners.model.Statement48import java.lang.reflect.Constructor49import java.lang.reflect.Method50import java.lang.reflect.Modifier51import java.util.ArrayList52import java.util.List53import java.util.Collections54import java.util.Comparator55import org.junit.runner.Description56import org.junit.runner.notification.RunNotifier57import org.junit.runners.model.FrameworkMethod58import org.junit.runners.model.InitializationError59import org.junit.runners.model.Statement60import java.lang.reflect.Constructor61import java.lang.reflect.Method62import java.lang.reflect.Modifier63import java.util.ArrayList64import java.util.List65import java.util.Collections66import java.util.Comparator67import org.junit.runner.Description68import org.junit.runner.notification.RunNotifier69import org.junit.runners.model.FrameworkMethod70import org.junit.runners.model.InitializationError71import org.junit.runners.model.Statement72import java.lang.reflect.Constructor73import java.lang.reflect.Method
getChildren
Using AI Code Generation
1import org.junit.runner.Description;2import org.junit.runners.BlockJUnit4Runner;3import org.junit.runners.model.InitializationError;4import java.lang.reflect.InvocationTargetException;5import java.lang.reflect.Method;6import java.util.List;7public class GetChildrenTest {8 public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InitializationError, InstantiationException {9 String testClassName = "org.apache.commons.lang3.builder.EqualsBuilderTest";10 ClassLoader classLoader = Thread.currentThread().getContextClassLoader();11 Class<?> testClass = classLoader.loadClass(testClassName);12 Class<?> blockJUnit4RunnerClass = classLoader.loadClass("org.junit.runners.BlockJUnit4Runner");13 Method getChildrenMethod = blockJUnit4RunnerClass.getDeclaredMethod("getChildren");14 getChildrenMethod.setAccessible(true);15 Object blockJUnit4Runner = blockJUnit4RunnerClass.getConstructor(Class.class).newInstance(testClass);16 List<Description> children = (List<Description>) getChildrenMethod.invoke(blockJUnit4Runner);17 for (Description child : children) {18 Class<?> descriptionClass = classLoader.loadClass("org.junit.runner.Description");19 Method getMethodNameMethod = descriptionClass.getDeclaredMethod("getMethodName");20 getMethodNameMethod.setAccessible(true);21 String methodName = (String) getMethodNameMethod.invoke(child);22 System.out.println(methodName);23 }24 }25}
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.