How to use getUserData method of org.testng.Interface IMethodSelectorContext class

Best Testng code snippet using org.testng.Interface IMethodSelectorContext.getUserData

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...13 * @param context The selector context. The implementation of this method14 * can invoke setHalted(true) to indicate that no other Method Selector15 * should be invoked by TestNG after this one. Additionally, this16 * implementation can manipulate the Map object returned by17 * getUserData().18 * @param method The test method19 * @param isTestMethod true if this is a @Test method, false if it's a20 * configuration method21 * @return true if this method should be included in the test run, false22 * otherwise23 */​24 public boolean includeMethod(IMethodSelectorContext context,25 ITestNGMethod method, boolean isTestMethod);26 /​**27 * Invoked when all the test methods are known so that the method selector28 * can perform additional work, such as adding the transitive closure of29 * all the groups being included and depended upon.30 */​31 public void setTestMethods(List<ITestNGMethod> testMethods);...

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...28 /​**29 * @return a Map that can be freely manipulated by the Method Selector.30 * This can be used to share information among several Method Selectors.31 */​32 public Map<Object, Object> getUserData();33} ...

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getUserData

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1package com.test;2import org.testng.IMethodInstance;3import org.testng.IMethodInterceptor;4import org.testng.ITestContext;5import org.testng.ITestNGMethod;6import java.util.List;7public class MyInterceptor implements IMethodInterceptor {8 public List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context) {9 for (IMethodInstance instance : methods) {10 ITestNGMethod method = instance.getMethod();11 String[] groups = method.getGroups();12 for (String group : groups) {13 if (group.equals("test")) {14 method.setGroups(new String[] {"test"});15 }16 }17 }18 return methods;19 }20}21package com.test;22import org.testng.annotations.Test;23public class MyTest {24 public void test1() {25 System.out.println("test1");26 }27 @Test(groups = "test")28 public void test2() {29 System.out.println("test2");30 }31}32public interface IMethodInterceptor {33 List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context);34}

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getUserData

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1public void testMethodSelectorContext() {2 ITestNGMethod[] methods = context.getAllTestMethods();3 for (ITestNGMethod method : methods) {4 System.out.println("Method name: "+method.getMethodName());5 }6}7public void testMethodSelectorContext() {8 Map<String, Object> data = context.getUserData();9 for (Map.Entry<String, Object> entry : data.entrySet()) {10 System.out.println("Key: "+entry.getKey()+", Value: "+entry.getValue());11 }12}13public void testMethodSelectorContext() {14 Map<String, Object> data = new HashMap<String, Object>();15 data.put("Key", "Value");16 context.setUserData(data);17}18public void testMethodSelectorContext() {19 System.out.println("Test suite name: "+context.getSuite().getName());20}

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getUserData

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1package com.test;2import org.testng.IMethodInstance;3import org.testng.IMethodInterceptor;4import org.testng.ITestContext;5import java.util.List;6public class TestNGMethodInterceptor implements IMethodInterceptor {7 public List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context) {8 System.out.println("Intercepted method: " + methods.get(0).getMethod().getMethodName());9 return methods;10 }11}12package com.test;13import org.testng.IMethodInstance;14import org.testng.IMethodInterceptor;15import org.testng.ITestContext;16import java.util.List;17public class TestNGMethodInterceptor implements IMethodInterceptor {18 public List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context) {19 System.out.println("Intercepted method: " + methods.get(0).getMethod().getMethodName());20 context.setUserAttribute("methods", methods);21 return methods;22 }23}24package com.test;25import org.testng.IMethodInstance;26import org.testng.IMethodInterceptor;27import org.testng.ITestContext;28import java.util.List;29public class TestNGMethodInterceptor implements IMethodInterceptor {30 public List<IMethodInstance> intercept(List<IMethodInstance> methods, ITestContext context) {31 System.out.println("Intercepted method: " + methods.get(0).getMethod().getMethodName());32 List<IMethodInstance> methodsList = (List<IMethodInstance>) context.getUserAttribute("methods");33 return methodsList;34 }35}

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1Object[][] data = context.getUserData().get("testData");2String methodName = context.getCurrentTestMethod().getMethodName();3Object[][] testData = getTestData(data, methodName);4return testData;5}6private Object[][] getTestData(Object[][] data, String methodName) {7Object[][] testData = null;8for(Object[] obj : data) {9String testName = (String) obj[0];10if(testName.equalsIgnoreCase(methodName)) {11testData = (Object[][])(obj[1]);12break;13}14}15return testData;16}17@DataProvider(name = "testData")18public Object[][] getData() {19Object[][] data = new Object[][] {20{"test1", new Object[][]{{"param1", "param2"}}},21{"test2", new Object[][]{{"param1", "param2"}}},22{"test3", new Object[][]{{"param1", "param2"}}}23};24return data;25}26@Test(dataProvider = "testData")27@UseDataProviderFrom(value = "testData", context = true)28public void test1(String param1, String param2) {29System.out.println(param1 + " - " + param2);30}31@Test(dataProvider = "testData")32@UseDataProviderFrom(value = "testData", context = true)33public void test2(String param1, String param2) {34System.out.println(param1 + " - " + param2);35}36@Test(dataProvider = "testData")37@UseDataProviderFrom(value = "testData", context = true)38public void test3(String param1, String param2) {39System.out.println(param1 + " - " + param2);40}41@Test(dataProvider = "testData")42@UseDataProviderFrom(value = "testData", context = true)43public void test4(String param1, String param2) {44System.out.println(param1 + " - " + param2);45}

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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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