How to use Interface IDataProviderInterceptor class of org.testng package

Best Testng code snippet using org.testng.Interface IDataProviderInterceptor

Source:IDataProviderInterceptor.java Github

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1package org.testng;2import java.util.Iterator;3/**4 * This interface helps define an interceptor for data providers. Implementations of this TestNG5 * listener can be wired in via the <code>@Listeners</code> annotation or via the6 * <code>listeners</code> tag in the suite file or via a Service Provider Interface mechanism.7 *8 * The implementation would be able to alter the actual set of data using which a test method would9 * be iterated upon.10 */11public interface IDataProviderInterceptor extends ITestNGListener {12 /**13 * @param original - The original data set as produced by a particular data provider.14 * @param dataProviderMethod - The {@link IDataProviderMethod} method object which represents the15 * data provider that was invoked.16 * @param method - The {@link ITestNGMethod} method object which represents the test method that17 * will receive the parameters.18 * @param iTestContext - The {@link ITestContext} object that represents the current test19 * context.20 * @return - The altered data set that would be used by TestNG to run the test method.21 */22 Iterator<Object[]> intercept(23 Iterator<Object[]> original,24 IDataProviderMethod dataProviderMethod,25 ITestNGMethod method,26 ITestContext iTestContext);27}...

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Interface IDataProviderInterceptor

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1public class DataProviderInterceptor implements IDataProviderInterceptor {2 public void beforeInvocation(IDataProviderMethod method, ITestNGMethod testMethod, ITestContext context) {3 System.out.println("Data Provider Interceptor before invocation of " + method.getTestMethod().getMethodName());4 }5 public void afterInvocation(IDataProviderMethod method, ITestNGMethod testMethod, ITestContext context) {6 System.out.println("Data Provider Interceptor after invocation of " + method.getTestMethod().getMethodName());7 }8 public List<IDataProviderMethod> intercept(List<IDataProviderMethod> methods, ITestContext context) {9 System.out.println("Data Provider Interceptor intercepting " + methods.size() + " methods");10 return methods;11 }12}13public class MethodInterceptor implements IMethodInterceptor {14 public List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context) {15 System.out.println("Method Interceptor intercepting " + methods.size() + " methods");16 return methods;17 }18}19public class TestListener implements ITestListener {20 public void onTestStart(ITestResult result) {21 System.out.println("Test Listener onTestStart " + result.getName());22 }23 public void onTestSuccess(ITestResult result) {24 System.out.println("Test Listener onTestSuccess " + result.getName());25 }26 public void onTestFailure(ITestResult result) {27 System.out.println("Test Listener onTestFailure " + result.getName());28 }29 public void onTestSkipped(ITestResult result) {30 System.out.println("Test Listener onTestSkipped " + result.getName());31 }32 public void onTestFailedButWithinSuccessPercentage(ITestResult result) {33 System.out.println("Test Listener onTestFailedButWithinSuccessPercentage " + result.getName());34 }35 public void onStart(ITestContext context) {36 System.out.println("Test Listener onStart " + context.getName());37 }38 public void onFinish(ITestContext context) {39 System.out.println("Test Listener onFinish " + context.getName());40 }41}

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Interface IDataProviderInterceptor

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1public class DataProviderInterceptor implements IDataProviderInterceptor {2 public void beforeInvocation(IDataProviderMethod method, ITestContext context) {3 }4 public void afterInvocation(IDataProviderMethod method, ITestContext context) {5 }6 public List<IDataProviderMethod> intercept(List<IDataProviderMethod> methods, ITestContext context) {7 return methods;8 }9}10public class TestListener implements ITestListener {11 public void onTestStart(ITestResult result) {12 }13 public void onTestSuccess(ITestResult result) {14 }15 public void onTestFailure(ITestResult result) {16 }17 public void onTestSkipped(ITestResult result) {18 }19 public void onTestFailedButWithinSuccessPercentage(ITestResult result) {20 }21 public void onStart(ITestContext context) {22 }23 public void onFinish(ITestContext context) {24 }25}26public class TestAnnotationTransformer implements IAnnotationTransformer {27 public void transform(ITestAnnotation annotation, Class testClass, Constructor testConstructor, Method testMethod) {28 }29}30public class TestMethodInterceptor implements ITestMethodInterceptor {31 public void intercept(ITestNGMethod method, ITestResult testResult) {32 }33}34public class TestResultListener implements ITestResultListener {35 public void onTestStart(ITestResult result) {

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Interface IDataProviderInterceptor

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1public class DataProviderInterceptor implements IDataProviderInterceptor {2 public void interceptDataProviderMethod(Method method, ITestContext context, IDataProviderMethod dataProviderMethod) {3 System.out.println("DataProviderInterceptor.interceptDataProviderMethod()");4 System.out.println("method = " + method);5 System.out.println("context = " + context);6 System.out.println("dataProviderMethod = " + dataProviderMethod);7 }8}9public class TestInterceptor implements ITestInterceptor {10 public void intercept(ITestResult testResult, ITestContext context, ITestNGMethod method) {11 System.out.println("TestInterceptor.intercept()");12 System.out.println("testResult = " + testResult);13 System.out.println("context = " + context);14 System.out.println("method = " + method);15 }16}17public class TestListener implements ITestListener {18 public void onTestStart(ITestResult result) {19 System.out.println("TestListener.onTestStart()");20 System.out.println("result = " + result);21 }22 public void onTestSuccess(ITestResult result) {23 System.out.println("TestListener.onTestSuccess()");24 System.out.println("result = " + result);25 }26 public void onTestFailure(ITestResult result) {27 System.out.println("TestListener.onTestFailure()");28 System.out.println("result = " + result);29 }30 public void onTestSkipped(ITestResult result) {31 System.out.println("TestListener.onTestSkipped()");32 System.out.println("result = " + result);33 }34 public void onTestFailedButWithinSuccessPercentage(ITestResult result) {35 System.out.println("TestListener.onTestFailedButWithinSuccessPercentage()");36 System.out.println("result = " + result);37 }38 public void onStart(ITestContext context) {39 System.out.println("TestListener.onStart()");40 System.out.println("context = " + context);41 }42 public void onFinish(ITestContext context) {43 System.out.println("TestListener.onFinish()");44 System.out.println("context = " + context);45 }46}

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Interface IDataProviderInterceptor

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1public class DataProviderInterceptor implements IDataProviderInterceptor{2 public void beforeInvocation(IDataProviderMethod arg0, ITestNGMethod arg1, ITestContext arg2) {3 System.out.println("Before Data Provider Invocation");4 }5 public void afterInvocation(IDataProviderMethod arg0, ITestNGMethod arg1, ITestContext arg2) {6 System.out.println("After Data Provider Invocation");7 }8}9public class TestNGMethod implements ITestNGMethod{10 public boolean isTest() {11 return false;12 }13 public boolean isBeforeSuiteConfiguration() {14 return false;15 }16 public boolean isBeforeTestConfiguration() {17 return false;18 }19 public boolean isBeforeGroupsConfiguration() {20 return false;21 }22 public boolean isBeforeClassConfiguration() {23 return false;24 }25 public boolean isBeforeMethodConfiguration() {26 return false;27 }28 public boolean isAfterSuiteConfiguration() {29 return false;30 }31 public boolean isAfterTestConfiguration() {32 return false;33 }34 public boolean isAfterGroupsConfiguration() {35 return false;36 }37 public boolean isAfterClassConfiguration() {38 return false;39 }40 public boolean isAfterMethodConfiguration() {41 return false;42 }43 public boolean isBeforeSuiteConfiguration(IAnnotationFinder arg0) {44 return false;45 }46 public boolean isBeforeTestConfiguration(IAnnotationFinder arg0) {47 return false;48 }49 public boolean isBeforeGroupsConfiguration(IAnnotationFinder arg0) {50 return false;51 }52 public boolean isBeforeClassConfiguration(IAnnotationFinder arg0) {53 return false;54 }55 public boolean isBeforeMethodConfiguration(IAnnotationFinder arg0) {56 return false;57 }58 public boolean isAfterSuiteConfiguration(IAnnotationFinder arg0) {59 return false;60 }61 public boolean isAfterTestConfiguration(IAnnotationFinder arg0) {62 return false;63 }64 public boolean isAfterGroupsConfiguration(IAnnotationFinder arg0) {65 return false;66 }67 public boolean isAfterClassConfiguration(IAnnotationFinder arg0) {68 return false;

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Interface IDataProviderInterceptor

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1public class DataProviderInterceptor implements IDataProviderInterceptor {2 public void intercept(DataProviderMethod dataProviderMethod, ITestContext context, ITestNGMethod method, Iterator<Object[]> data) {3 }4}5public class TestInterceptor implements ITestInterceptor {6 public void intercept(ITestResult tr, ITestContext context, ITestNGMethod method) {7 }8}9public class TestListener implements ITestListener {10 public void onTestStart(ITestResult result) {11 }12}13public class MethodInterceptor implements IMethodInterceptor {14 public List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context) {15 }16}17public class InvokedMethodListener implements IInvokedMethodListener {18 public void beforeInvocation(IInvokedMethod method, ITestResult testResult) {19 }20}21public class Hookable implements IHookable {22 public void run(IHookCallBack callBack, ITestResult testResult) {23 }24}25public class InvokedMethodListener implements IInvokedMethodListener {26 public void afterInvocation(IInvokedMethod method, ITestResult testResult) {

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Interface IDataProviderInterceptor

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1package org.testng;2public interface IDataProviderInterceptor {3 Object[] intercept(Method dataProviderMethod, ITestContext context);4}5package org.testng;6public class DataProviderInterceptor implements IDataProviderInterceptor {7 public Object[] intercept(Method dataProviderMethod, ITestContext context) {8 Object[] dp = new Object[0];9 try {10 dp = (Object[]) dataProviderMethod.invoke(null, context);11 } catch (IllegalAccessException | InvocationTargetException e) {12 e.printStackTrace();13 }14 return dp;15 }16}17package org.testng;18public class DataProviderInterceptorSample {19 @DataProvider(name = "dp")20 public static Object[][] dp() {21 return new Object[][] {{"a", "b"}, {"c", "d"}};22 }23 @Test(dataProvider = "dp")24 public void test(String s1, String s2) {25 System.out.println(s1 + " " + s2);26 }27 @Test(dataProvider = "dp", dataProviderInterceptor = DataProviderInterceptor.class)28 public void test2(String s1, String s2) {29 System.out.println(s1 + " " + s2);30 }31}32package org.testng;33public class DataProviderInterceptorSample2 {34 @DataProvider(name = "dp")35 public static Object[][] dp() {36 return new Object[][] {{"a", "b"}, {"c", "d"}};37 }38 @Test(dataProvider = "dp")39 public void test(String s1, String s2) {40 System.out.println(s1 + " " + s2);41 }42 @Test(dataProvider = "dp", dataProviderInterceptor = "org.testng.DataProviderInterceptor")43 public void test2(String s1, String s2) {

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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.

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  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.
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  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.
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