Sometimes our methods throw exceptions and we want to mock the object and test the exceptions. We can use Mockito mock objects with when() and thenThrow() to mock this scenario. Mockito Stub Exception – JUnit 5 Let’s see a simple example where we will mock our object method to throw an exception. Then we will […]
TestNG Mockito Example
In the Mockito Tutorial, we used JUnit to run test cases. Mockito framework can be combined with other Java testing frameworks too. In this tutorial, we will integrate Mockito mocking framework with TestNG testing framework. TestNG Mockito We will reuse the classes created in the Mockito Tutorial and write test cases for them in TestNG. […]
JUnit vs TestNG
JUnit and TestNG are the most popular testing frameworks for Java applications. Both of these frameworks are really good and easy to use. So when it comes to chose the testing framework for your application, it’s better to have a high-level idea of what features are present in one or the other and then take […]
TestNG Annotations
TestNG annotations helps us in quickly writing test cases, configure them programmatically. Let’s have a look at the most important TestNG annotations. TestNG Annotations – Configuration TestNG provides following annotations for configuring our test suite and test cases. @BeforeSuite: The method annotated will be executed before any test methods are executed. @AfterSuite: The annotated method […]
TestNG Dependency – dependsOnMethods, dependsOnGroups
Sometimes we want our test cases to run in specific order. One of the very common examples is when we want to run test cases for CRUD operations. So we want to make sure that test data is inserted first, then it’s retrieved, updated and finally deleted. TestNG Dependency Example – dependsOnMethods Let’s say we […]
TestNG Groups
TestNG Groups is one of its very important and useful features. We can specify groups for TestNG methods, it can be used with @Before, @After and @Test methods. TestNG Groups Once we have defined the groups for TestNG methods, we can run specific groups. We can include groups to be executed, exclude groups. We can […]
TestNG Timeout Example
We can specify a timeout for our TestNG tests. This can be done in the test class by setting timeOut property of @Test annotation. When the test methods doesn’t finish in the specified timeout, org.testng.internal.thread.ThreadTimeoutException is thrown and method is marked as failed. TestNG Timeout @Test Example Here is a simple class where timeout is […]
TestNG Parallel Execution
We can run TestNG tests in parallel. This feature is only available when we are using TestNG XML suite for executing our test cases. TestNG Default Tests Execution When we run TestNG class, methods are executed in order of the alphabetical appearance of their names. Let’s look at a simple TestNG test class. package com.journaldev.parallel; […]
TestNG Ignore or Disable Tests
Sometimes we want to ignore a TestNG test method, there are many ways to achieve this. TestNG @Test enable parameter We can disable or ignore a test method by adding enabled=false to @Test annotation. Let’s look at a simple example of ignoring a test method using this. package com.journaldev.utils; import org.testng.annotations.Test; public class TestNGExample { […]
TestNG Exceptions – expectedExceptions, expectedExceptionsMessageRegExp
Sometimes we want to test our methods for exceptions. TestNG allows us to perform exceptions testing using expectedExceptions and expectedExceptionsMessageRegExp parameters of @Test annotation. TestNG expectedExceptions Let’s say we have a simple utility method for dividing two numbers. package com.journaldev.exceptions; public class MathUtils { public int divide(int x, int y) { return x / y; […]