How to use runTestMethod method of org.testng.Interface IHookCallBack class

Best Testng code snippet using org.testng.Interface IHookCallBack.runTestMethod

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...217 /​/​---------------------------------------------------------------------218 /​/​ Implementation of IHookable interface219 /​/​---------------------------------------------------------------------220 /​**221 * Delegates to the {@linkplain IHookCallBack#runTestMethod(ITestResult) test method} in the supplied222 * {@code callback} to execute the actual test and then tracks the exception thrown during test execution, if any.223 *224 * @see org.testng.IHookable#run(IHookCallBack, ITestResult)225 */​226 @SuppressWarnings( "ThrowableNotThrown" )227 @Override228 public void run( IHookCallBack callBack, ITestResult testResult )229 {230 Method testMethod = testResult.getMethod().getConstructorOrMethod().getMethod();231 boolean beforeCallbacksExecuted = false;232 try233 {234 this.testContextManager.beforeTestExecution( this, testMethod );235 beforeCallbacksExecuted = true;236 }237 catch( Throwable ex )238 {239 this.testException = ex;240 }241 if( beforeCallbacksExecuted )242 {243 callBack.runTestMethod( testResult );244 this.testException = getTestResultException( testResult );245 }246 try247 {248 this.testContextManager.afterTestExecution( this, testMethod, this.testException );249 }250 catch( Throwable ex )251 {252 if( this.testException == null )253 {254 this.testException = ex;255 }256 }257 if( this.testException != null )...

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...19 public void run(IHookCallBack callBack, ITestResult testResult) {20 List<IHookable> hookables = getRules(testResult.getInstance(),21 IHookable.class);22 if (hookables.isEmpty()) {23 callBack.runTestMethod(testResult);24 } else {25 IHookable hookable = hookables.get(0);26 hookables.remove(0);27 for (IHookable iHookable : hookables) {28 hookable = compose(hookable, iHookable);29 }30 hookable.run(callBack, testResult);31 }32 }33 private IHookable compose(final IHookable first, final IHookable second) {34 return new IHookable() {35 @Override36 public void run(final IHookCallBack callBack,37 final ITestResult testResult) {38 first.run(new IHookCallBack() {39 @Override40 public void runTestMethod(ITestResult testResult) {41 second.run(callBack, testResult);42 }43 @Override44 public Object[] getParameters() {45 return callBack.getParameters();46 }47 }, testResult);48 }49 };50 }51 private <T> List<T> getRules(Object object, Class<T> type) {52 List<T> rules = new ArrayList<T>();53 Field[] declaredFields = object.getClass().getFields();54 for (Field field : declaredFields) {...

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...20 /​/​ If a test class implements this interface, its run() method will be invoked instead of each @Test method found21 /​/​ 翻译的意思:一个类有去实现implements这个接口的话,那么当前的run方法将会替换掉测试类里面的@Test注解标注的测试方法22 /​/​ 想要得到测试的结果信息23 /​/​ 1、保证@Test注解标注的测试方法能够正常运行24 iHookCallBack.runTestMethod(iTestResult);25 /​/​ 2、判断用例结果是否正常26 if (iTestResult.getThrowable() != null) {27 /​/​ iTestResult参数提供了API getInstance 获取当前测试类的实例(对象)28 BaseTest baseTest = (BaseTest) iTestResult.getInstance();29 /​/​ 根据baseTest得到driver30 WebDriver driver = baseTest.driver;31 /​/​ 截图并把截图嵌入到Allure报表中32 TakesScreenshot takesScreenshot = (TakesScreenshot) driver;33 /​/​ 参数OutputType:截图的类型34 byte[] screenShot = takesScreenshot.getScreenshotAs(OutputType.BYTES);35 saveScreenshot(screenShot);36 }37 }38 /​/​ @Attachment 附件...

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...20 /​/​翻译过来:如果一个类实现了这个接口,那么该接口的run方法将会代替@Test注解标注的测试方法执行21 @Override22 public void run(IHookCallBack callBack, ITestResult testResult) {23 /​/​让测试方法能够正常的执行24 callBack.runTestMethod(testResult);25 /​/​收集到测试结果testResult,判断testResult是否有异常26 if(testResult.getThrowable() != null){27 /​/​失败用例截图28 /​/​获取当前运行的测试类的实例(对象),eg:AddCartTest29 BaseTest baseTest = (BaseTest) testResult.getInstance();30 TakesScreenshot takesScreenshot = (TakesScreenshot)baseTest.driver;31 byte[] screenshotDatas = takesScreenshot.getScreenshotAs(OutputType.BYTES);32 /​/​将截图的数据保存到allure附件中33 add_to_allure(screenshotDatas);34 }35 }36 @Attachment37 public byte[] add_to_allure(byte[] datas){38 return datas;...

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...5public class HookableListener implements IHookable {6 @Override7 public void run(IHookCallBack callBack, ITestResult testResult) {8 System.out.println("Execute this before any Test step is executed");9 callBack.runTestMethod(testResult);10 }11}12/​*This interface skips the invocation of test methods and provides a run method which gets invoked instead of each @Test method found.13The test method is then invoked once the callBack() method of the IHookCallBack parameter is called.14 */​15/​/​It is utilized when you wish to perform testing on classes which require JAAS authentication. This can be used to set permissions, i.e.16/​/​ for whom the test method should run and when the test method should get skipped.*?The IHookable listener is...

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1package org.testng;2/​**3 * A parameter of this type will be passed to the run() method of a IHookable.4 * Invoking runTestMethod() on that parameter will cause the test method currently5 * being diverted to be invoked.6 *7 * <p>8 *9 * <b>This interface is not meant to be implemented by clients, only by TestNG.</​b>10 *11 * @see org.testng.IHookable12 *13 *14 * @author cbeust15 * Jan 28, 200616 */​17public interface IHookCallBack {18 /​**19 * Invoke the test method currently being hijacked.20 */​21 public void runTestMethod(ITestResult testResult);22 /​**23 * @return the parameters that will be used to invoke the test method.24 */​25 public Object[] getParameters();26}...

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runTestMethod

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1public void test1() {2 System.out.println("test1");3}4public void test2() {5 System.out.println("test2");6}7public void test3() {8 System.out.println("test3");9}10public void test4() {11 System.out.println("test4");12}13public void test5() {14 System.out.println("test5");15}16public void test6() {17 System.out.println("test6");18}19public void test7() {20 System.out.println("test7");21}22public void test8() {23 System.out.println("test8");24}25public void test9() {26 System.out.println("test9");27}28public void test10() {29 System.out.println("test10");30}31public void test11() {32 System.out.println("test11");33}34public void test12() {35 System.out.println("test12");36}37public void test13() {38 System.out.println("test13");39}40public void test14() {41 System.out.println("test14");42}43public void test15() {44 System.out.println("test15");45}46public void test16() {47 System.out.println("test16");48}49public void test17() {50 System.out.println("test17");51}52public void test18() {53 System.out.println("test18");54}55public void test19() {56 System.out.println("test19");57}58public void test20() {59 System.out.println("test20");60}61public void test21() {62 System.out.println("test21");63}64public void test22() {65 System.out.println("test22");66}67public void test23() {68 System.out.println("test23");69}70public void test24() {71 System.out.println("test24");72}73public void test25() {74 System.out.println("test25");75}76public void test26() {77 System.out.println("test26");78}79public void test27() {80 System.out.println("test27");81}82public void test28() {83 System.out.println("test28");84}85public void test29() {86 System.out.println("test29");87}

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runTestMethod

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1Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(callBack, result);2Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(callBack, result);3Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(callBack, result);4Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(callBack, result);5Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(callBack, result);6Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(callBack, result);7Class.forName("org.testng.IHookCallBack").getMethod("runTestMethod", Class.forName("org.testng.ITestResult")).invoke(call

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runTestMethod

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1package com.test;2import org.testng.IHookCallBack;3import org.testng.IHookable;4import org.testng.ITestResult;5public class TestNGListener implements IHookable {6 public void run(IHookCallBack callBack, ITestResult testResult) {7 callBack.runTestMethod(testResult);8 }9}10package com.test;11import org.testng.annotations.Test;12public class TestNGListenerTest {13 public void testMethod1() {14 System.out.println("Running testMethod1");15 }16 public void testMethod2() {17 System.out.println("Running testMethod2");18 }19}

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runTestMethod

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1package com.automation;2import org.testng.IHookCallBack;3import org.testng.IHookable;4import org.testng.ITestResult;5public class TestNGRetry implements IHookable {6 private int retryCount = 0;7 private int maxRetryCount = 2;8 public void run(IHookCallBack callBack, ITestResult testResult) {9 callBack.runTestMethod(testResult);10 if (testResult.getThrowable() != null) {11 if (retryCount < maxRetryCount) {12 System.out.println("Retrying test " + testResult.getName() + " with status "13 + testResult.getStatus() + " for the " + (retryCount + 1) + " time(s).");14 retryCount++;15 testResult.setStatus(ITestResult.FAILURE);16 callBack.runTestMethod(testResult);17 }18 } else {19 testResult.setStatus(ITestResult.SUCCESS);20 }21 }22}23package com.automation;24import org.testng.annotations.AfterMethod;25import org.testng.annotations.Test;26public class TestNGRetryTest {27 public void testMethod1() {28 System.out.println("Running -> testMethod1");29 }30 public void testMethod2() {31 System.out.println("Running -> testMethod2");32 throw new RuntimeException();33 }34 public void testMethod3() {35 System.out.println("Running -> testMethod3");36 }37 public void afterMethod() {38 System.out.println("Running -> afterMethod");39 }40}41package com.automation;42import org.testng.annotations.AfterMethod;43import org.testng.annotations.Test;44public class TestNGRetryTest1 {45 @Test(retryAnalyzer = com.automation.TestNGRetryAnalyzer.class)46 public void testMethod1() {47 System.out.println("Running -> testMethod1");48 }49 public void testMethod2() {50 System.out.println("Running -> testMethod2");51 throw new RuntimeException();52 }53 public void testMethod3() {54 System.out.println("Running -> testMethod3");55 }

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StackOverFlow community discussions

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When you enable parallel then there will be some time between the beforeInvocation and afterInvocation in the logs as you have noticed and that difference in time varies from test to test hence the staggered output.

If what you want is the start and end messages next to each other then you are basically throwing out the time factor and as such can simply add your beforeInvocation message to the afterInvocation method as follows:

public class TestExecutionListener implements IInvokedMethodListener {

    @Override
    public void beforeInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
    }

    @Override
    public void afterInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        System.out.println("Testing : " + iInvokedMethod.getTestMethod().getMethodName());
        System.out.println("Successfully Tested : " + iInvokedMethod.getTestMethod().getMethodName());
    }
}

IMO this is the only way to do it as per your spec. However, if there is other information that must be gathered during the tests then perhaps you could buffer some logs in the TestExecutionListener for example:

public class TestExecutionListener implements IInvokedMethodListener {
    private Map<Integer, Deque<String>> logsMap = new HashMap<Integer, Deque<String>>();

    public void log(IInvokedMethod iInvokedMethod, String log) {
        if(!logsMap.containsKey(iInvokedMethod.getId())) {
            logsMap.put(iInvokedMethod.getId(), new ArrayDeque<String>());
        }

        logsMap.get(iInvokedMethod.getId()).add(log);
    }

    @Override
    public void beforeInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        log(iInvokedMethod, "Testing : " + iInvokedMethod.getTestMethod().getMethodName());
    }

    @Override
    public void afterInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        log(iInvokedMethod, "Successfully Tested : " + iInvokedMethod.getTestMethod().getMethodName());

        Deque<String> logs = logsMap.get(iInvokedMethod.getId());
        while(!logs.isEmpty()) {
            System.out.println(logs.poll());
        }
    }
}
https://stackoverflow.com/questions/38987504/getting-sequential-logs-while-executing-tests-in-parallel

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