JUnit Testing Tutorial For Beginners : Pondy IT Training
JUnit is an open source Unit Testing Framework for JAVA. It is useful for Java Developers to write and run repeatable tests. Erich Gamma and Kent Beck initially develop it. It is an instance of xUnit architecture. As the name implies, it is used for Unit Testing of a small chunk of code. Developers who are following test-driven methodology must write and execute unit test first before any code. Once you are done with code, you should execute all tests, and it should pass. Every time any code is added, you need to re-execute all test cases and makes sure nothing is broken.
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JUnit is a Testing framework used to test Java based application. So before installing JUnit, you need to configure or verify java development kit (JDK) in your machine.
- PART 1) Install Java
- PART 2) Download JUnit
- PART 3) JUnit Environment Setup
- PART 4) Install JUnit jar file in eclipse
- Part 5) Verifying whether required jar file for JUnit is in my build path
- PART 6) Verify JUnit setup
JUnit is the most popular unit Testing framework in Java. It is explicitly recommended for Unit Testing. JUnit does not require server for testing web application, which makes the testing process fast.
- What is Test fixture
- Setup and Teardown
- Once-only setup
- Once-only tear down
- JUnit Test Suites
- Junit Test Runner
- First JUnit program
Annotation is a special form of syntactic meta-data that can be added to Java source code for better code readability and structure. Variables, parameters, packages, methods and classes can be annotated.
- JUnit Assert Class
- JUnit Test Cases Class
- JUnit TestResult Class
- JUnit Test Suite Class
- JUnit Annotations
- JUnit Annotations Example
Assert is a method useful in determining Pass or Fail status of a test case, The assert methods are provided by the class org.junit.Assert which extends java.lang.Object class.
- JUnit Assert methods
- Null object
- Assert Equals
- Assert Array Equals
- Fail Message
- JUnit assertEquals
- Floating point assertions
- JUnit Assert Example
In Junit, test suite allows us to aggregate all test cases from multiple classes in one place and run it together. To run the suite test, you need to annotate a class using below-mentioned annotations
- Steps to create Test Suite and Test Runner
- JUnit Test Suite Example
Sometimes you may require not to execute a method/code or Test Case because coding is not done fully. For that particular test, JUnit provides @Ignore annotation to skip the test.
- What is JUnit @Ignore test annotation
- Junit Test Example - Ignore
- Creating a simple test class without ignoring a test
- Ignore a test method using @Ignore annotation
- Using @ ignore annotation with Condition
- Ignore all test methods using @Ignore annotation.
Both Testng and Junit are Testing framework used for Unit Testing. TestNG is similar to JUnit. Few more functionalities are added to it that makes TestNG more powerful than JUnit.
- JUnit4 and TestNG Feature comparison
- Suite Test
- Ignore Test
- Exception Test
- Parameterized Test
JUnit is designed in such a way where you can get all the important conceptual knowledge, hands on skills and problem solving techniques. In most of the classes, the instructor will give two hours lecture and after that you have to do a classwork relating to the instruction subject. You will be given homework in each class related to real life and practical scenarios. There will be a trainer assistat to support you with more personal attention.
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