TestNG Framework MCQ Questions - Page 1
TestNG annotations, assertions, and test management with practical examples
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Question 1: What is TestNG primarily designed for in Java application testing?
TestNG is primarily designed as a comprehensive testing framework for Java applications. It is inspired by JUnit and NUnit but introduces new functionality that makes it more powerful and easier to use, supporting annotations, test groups, parallel execution, and data-driven testing.
Question 2: Which annotation is used to mark a method as a test method in TestNG?
The @Test annotation is used to mark a method as a test method in TestNG. This annotation tells TestNG that the method should be executed as part of the test suite and provides various attributes to configure test behavior and execution parameters.
Question 3: How is a TestNG test suite typically created and configured?
A TestNG test suite is typically created by writing a test suite XML configuration file. This XML file defines which test classes and methods to include, their execution order, parameters, and other configuration options for the test suite.
Question 4: What is the purpose of the @BeforeTest annotation in TestNG?
The @BeforeTest annotation in TestNG is executed before executing the entire test suite. It runs once before all the test methods in the test suite, making it ideal for setting up resources that need to be shared across multiple test classes.
Question 5: What function does the TestNG @AfterMethod annotation serve?
The @AfterMethod annotation in TestNG serves to execute code after each test method execution. It's commonly used for cleanup activities like closing browser instances, clearing test data, or releasing resources after each test execution.
Question 6: What capability does @DataProvider provide in TestNG?
The @DataProvider annotation in TestNG allows you to run a test with multiple sets of data. It enables data-driven testing by providing different data sets to the same test method, making it possible to test the same functionality with various inputs efficiently.
Question 7: How can TestNG tests be executed in IDEs like Eclipse or IntelliJ?
TestNG tests can be executed in IDEs like Eclipse or IntelliJ through the testng.xml configuration file. This file defines the test suite structure and can be run directly from the IDE, providing integrated test execution and reporting capabilities.
Question 8: How can tests be organized into groups in TestNG?
Tests in TestNG are organized into groups using the @Test(groups="group_name") annotation. This allows you to categorize tests and run specific groups of tests based on different criteria like functionality, priority, or test type.
Question 9: What are TestNG listeners designed to accomplish?
TestNG listeners are designed to accomplish listening to test events during execution. They allow you to customize test behavior by implementing interfaces like ITestListener, ISuiteListener, or IInvokedMethodListener to handle events like test start, test success, test failure, etc.
Question 10: What happens when @BeforeMethod and @AfterMethod annotations fail in TestNG?
When @BeforeMethod and @AfterMethod annotations fail in TestNG, the associated test methods are automatically skipped. This prevents test execution when setup or cleanup fails, ensuring that tests don't run in an inconsistent state.