How to use runFailed method of org.testng.junit.JUnitTestRunner class

Best Testng code snippet using org.testng.junit.JUnitTestRunner.runFailed

Source:JUnitTestRunner.java Github

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...176 }177178 /**179 * Returns the Test corresponding to the given suite. This is180 * a template method, subclasses override runFailed(), clearStatus().181 */182 protected Test getTest(Class testClass, String... methods) {183 if (methods.length > 0) {184 TestSuite ts = new TestSuite();185 try {186 Constructor c = testClass.getConstructor(String.class);187 for (String m: methods) {188 try {189 ts.addTest((Test) c.newInstance(m));190 } catch (InstantiationException ex) {191 runFailed(testClass, "abstract class " + ex);192 } catch (IllegalAccessException ex) {193 runFailed(testClass, "constructor is not public " + ex);194 } catch (IllegalArgumentException ex) {195 runFailed(testClass, "actual and formal parameters differ " + ex);196 } catch (InvocationTargetException ex) {197 runFailed(testClass, "exception while instatiating test for method '" + m + "' " + ex);198 }199 }200 } catch (NoSuchMethodException ex) {201 runFailed(testClass, "no constructor accepting String argument found " + ex);202 } catch (SecurityException ex) {203 runFailed(testClass, "security exception " + ex);204 }205 return ts;206 }207 Method suiteMethod = null;208 try {209 suiteMethod = testClass.getMethod(SUITE_METHODNAME, new Class[0]);210 }211 catch (Exception e) {212213 // try to extract a test suite automatically214 return new TestSuite(testClass);215 }216 if (!Modifier.isStatic(suiteMethod.getModifiers())) {217 runFailed(testClass, "suite() method must be static");218219 return null;220 }221 Test test = null;222 try {223 test = (Test) suiteMethod.invoke(null, (Object[]) new Class[0]); // static method224 if (test == null) {225 return test;226 }227 }228 catch (InvocationTargetException e) {229 runFailed(testClass, "failed to invoke method suite():" + e.getTargetException().toString());230231 return null;232 }233 catch (IllegalAccessException e) {234 runFailed(testClass, "failed to invoke method suite():" + e.toString());235236 return null;237 }238239 return test;240 }241242 /**243 * A <code>start</code> implementation that ignores the <code>TestResult</code>244 * @param testClass the JUnit test class245 */246 @Override247 public void run(Class testClass, String... methods) {248 start(testClass, methods);249 }250251 /**252 * Starts a test run. Analyzes the command line arguments and runs the given253 * test suite.254 */255 public TestResult start(Class testCase, String... methods) {256 try {257 Test suite = getTest(testCase, methods);258259 if(null != suite) {260 return doRun(suite);261 }262 else {263 runFailed(testCase, "could not create/run JUnit test suite");264 }265 }266 catch (Exception e) {267 runFailed(testCase, "could not create/run JUnit test suite: " + e.getMessage());268 }269270 return null;271 }272273 protected void runFailed(Class clazz, String message) {274 throw new TestNGException("Failure in JUnit mode for class " + clazz.getName() + ": " + message);275 }276277 /**278 * Creates the TestResult to be used for the test run.279 */280 protected TestResult createTestResult() {281 return new TestResult();282 }283284 protected TestResult doRun(Test suite) {285 TestResult result = createTestResult();286 result.addListener(this);287 suite.run(result); ...

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runFailed

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1package com.test;2import org.testng.TestNG;3import org.testng.junit.JUnitTestRunner;4public class TestNGRunner {5public static void main(String[] args) {6 TestNG testng = new TestNG();7 testng.setTestClasses(new Class[] { TestNGTest.class });8 testng.run();9 JUnitTestRunner runner = new JUnitTestRunner();10 System.out.println(runner.runFailed());11}12}13package com.test;14import org.testng.Assert;15import org.testng.annotations.Test;16public class TestNGTest {17public void testMethod1() {18 Assert.assertTrue(true);19}20public void testMethod2() {21 Assert.assertTrue(false);22}23}

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runFailed

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1package com.test;2import java.io.IOException;3import java.io.PrintWriter;4import java.io.StringWriter;5import java.lang.reflect.Method;6import java.util.ArrayList;7import java.util.List;8import org.testng.IHookCallBack;9import org.testng.IHookable;10import org.testng.ITestResult;11import org.testng.annotations.DataProvider;12import org.testng.annotations.Test;13import org.testng.internal.junit.JUnitTestRunner;14public class TestNGDataProvider implements IHookable {15 @DataProvider(name = "data-provider", parallel = true)16 public Object[][] dataProviderMethod(Method method) {17 System.out.println("DataProvider method");18 return new Object[][] { { "data1" }, { "data2" }, { "data3" } };19 }20 @Test(dataProvider = "data-provider")21 public void testMethod(String data) throws InterruptedException {22 System.out.println("Test Method with data - " + data);23 Thread.sleep(5000);24 }25 public void run(IHookCallBack callBack, ITestResult testResult) {26 try {27 callBack.runTestMethod(testResult);28 } catch (Throwable t) {29 testResult.setThrowable(t);30 testResult.setStatus(ITestResult.FAILURE);31 testResult.setThrowable(t);32 StringWriter sw = new StringWriter();33 PrintWriter pw = new PrintWriter(sw);34 t.printStackTrace(pw);35 System.out.println(sw.toString());36 try {37 JUnitTestRunner.runFailed(testResult.getName(), sw.toString());38 } catch (IOException e) {39 e.printStackTrace();40 }41 }42 }43}44package com.test;45import java.io.IOException;46import java.io.PrintWriter;47import java.io.StringWriter;48import java.lang.reflect.Method;49import java.util.ArrayList;50import java.util.List;51import org.testng.IHookCallBack;52import org.testng.IHookable;53import org.testng.ITestResult;54import org.testng.annotations.DataProvider;55import org.testng.annotations.Test;56import org.testng.internal.junit.JUnitTestRunner;57public class TestNGDataProvider implements IHookable {58 @DataProvider(name = "data-provider", parallel = true)59 public Object[][] dataProviderMethod(Method method) {60 System.out.println("DataProvider method");61 return new Object[][] { { "data1" }, { "data2" }, { "data3" } };62 }63 @Test(dataProvider = "data-provider")64 public void testMethod(String data

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1package com.test;2import java.util.ArrayList;3import java.util.List;4import org.testng.IInvokedMethod;5import org.testng.IInvokedMethodListener;6import org.testng.ITestResult;7public class TestNGListener implements IInvokedMethodListener {8 private static List<String> failedTests = new ArrayList<String>();9 public void beforeInvocation(IInvokedMethod method, ITestResult testResult) {10 }11 public void afterInvocation(IInvokedMethod method, ITestResult testResult) {12 if (testResult.getStatus() == ITestResult.FAILURE) {13 failedTests.add(testResult.getName());14 }15 }16 public static List<String> getFailedTests() {17 return failedTests;18 }19}20package com.test;21import org.testng.Assert;22import org.testng.annotations.Test;23public class Test1 {24 public void test1() {25 System.out.println("Test1.test1");26 Assert.assertTrue(false);27 }28 public void test2() {29 System.out.println("Test1.test2");30 Assert.assertTrue(true);31 }32}33package com.test;34import org.testng.Assert;35import org.testng.annotations.Test;36public class Test2 {37 public void test1() {38 System.out.println("Test2.test1");39 Assert.assertTrue(false);

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1import org.testng.junit.JUnitTestRunner;2import org.testng.TestNG;3import org.testng.xml.XmlSuite;4import org.testng.xml.XmlTest;5import org.testng.xml.XmlClass;6import org.testng.xml.XmlPackage;7import org.testng.xml.XmlGroups;8import org.testng.xml.XmlGroup;9import java.util.List;10import java.util.ArrayList;11import java.util.Arrays;12import java.util.HashMap;13import java.util.Map;14import java.io.File;15import java.io.FileWriter;16import java.io.BufferedWriter;17import java.io.IOException;18import java.io.PrintWriter;19public class TestNGTestRunner {20 public static void main(String[] args) {21 List<Class> testClasses = new ArrayList<Class>();22 testClasses.add(com.test.TestClass1.class);23 testClasses.add(com.test.TestClass2.class);24 testClasses.add(com.test.TestClass3.class);25 testClasses.add(com.test.TestClass4.class);26 testClasses.add(com.test.TestClass5.class);27 testClasses.add(com.test.TestClass6.class);28 testClasses.add(com.test.TestClass7

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TestNG tutorial

TestNG is a Java-based open-source framework for test automation that includes various test types, such as unit testing, functional testing, E2E testing, etc. TestNG is in many ways similar to JUnit and NUnit. But in contrast to its competitors, its extensive features make it a lot more reliable framework. One of the major reasons for its popularity is its ability to structure tests and improve the scripts' readability and maintainability. Another reason can be the important characteristics like the convenience of using multiple annotations, reliance, and priority that make this framework popular among developers and testers for test design. You can refer to the TestNG tutorial to learn why you should choose the TestNG framework.

Chapters

  1. JUnit 5 vs. TestNG: Compare and explore the core differences between JUnit 5 and TestNG from the Selenium WebDriver viewpoint.
  2. Installing TestNG in Eclipse: Start installing the TestNG Plugin and learn how to set up TestNG in Eclipse to begin constructing a framework for your test project.
  3. Create TestNG Project in Eclipse: Get started with creating a TestNG project and write your first TestNG test script.
  4. Automation using TestNG: Dive into how to install TestNG in this Selenium TestNG tutorial, the fundamentals of developing an automation script for Selenium automation testing.
  5. Parallel Test Execution in TestNG: Here are some essential elements of parallel testing with TestNG in this Selenium TestNG tutorial.
  6. Creating TestNG XML File: Here is a step-by-step tutorial on creating a TestNG XML file to learn why and how it is created and discover how to run the TestNG XML file being executed in parallel.
  7. Automation with Selenium, Cucumber & TestNG: Explore for an in-depth tutorial on automation using Selenium, Cucumber, and TestNG, as TestNG offers simpler settings and more features.
  8. JUnit Selenium Tests using TestNG: Start running your regular and parallel tests by looking at how to run test cases in Selenium using JUnit and TestNG without having to rewrite the tests.
  9. Group Test Cases in TestNG: Along with the explanation and demonstration using relevant TestNG group examples, learn how to group test cases in TestNG.
  10. Prioritizing Tests in TestNG: Get started with how to prioritize test cases in TestNG for Selenium automation testing.
  11. Assertions in TestNG: Examine what TestNG assertions are, the various types of TestNG assertions, and situations that relate to Selenium automated testing.
  12. DataProviders in TestNG: Deep dive into learning more about TestNG's DataProvider and how to effectively use it in our test scripts for Selenium test automation.
  13. Parameterization in TestNG: Here are the several parameterization strategies used in TestNG tests and how to apply them in Selenium automation scripts.
  14. TestNG Listeners in Selenium WebDriver: Understand the various TestNG listeners to utilize them effectively for your next plan when working with TestNG and Selenium automation.
  15. TestNG Annotations: Learn more about the execution order and annotation attributes, and refer to the prerequisites required to set up TestNG.
  16. TestNG Reporter Log in Selenium: Find out how to use the TestNG Reporter Log and learn how to eliminate the need for external software with TestNG Reporter Class to boost productivity.
  17. TestNG Reports in Jenkins: Discover how to generate TestNG reports in Jenkins if you want to know how to create, install, and share TestNG reports in Jenkins.

Certification

You can push your abilities to do automated testing using TestNG and advance your career by earning a TestNG certification. Check out our TestNG certification.

YouTube

Watch this complete tutorial to learn how you can leverage the capabilities of the TestNG framework for Selenium automation testing.

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