The best practice of Junit Jupiter (Aggregator) framework in Java development

JUNIT JUPITER is a testing framework in Java development. It provides a powerful and flexible tool and function for writing and executing unit testing.In this article, we will discuss the best practice of using the Junit Jupiter framework for Java development, and provide some Java code examples. 1. Introduce junit jupiter dependencies To start using the Junit Jupiter framework, you need to introduce it to the project first.You can complete the following dependencies by adding the following dependencies by adding the following files (such as pom.xml): <dependencies> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter-api</artifactId> <version>5.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter-engine</artifactId> <version>5.8.1</version> <scope>test</scope> </dependency> </dependencies> 2. Write test class In Junit Jupiter, the test class uses the `@test` annotation marking test method, and uses an assertion to verify the expected results.The following is a simple example: import org.junit.jupiter.api.Assertions; import org.junit.jupiter.api.Test; public class CalculatorTest { @Test public void testAddition() { Calculator calculator = new Calculator(); int result = calculator.add(2, 3); Assertions.assertEquals(5, result); } } In the above example, we use the@test` annotation to mark a test method `testadDition ()`.In this method, we created a CALCULATOR object and called its ADD () method to execute the additional operation.Then, we use the ASSERTIONS class `Assertequals ()` method to verify whether the results are equal to the expected value. 3. Run testing To run the Junit Jupiter test, you can use an integrated test operator provided by IDE (such as Eclipse or Intellij IDEA).You can also use a test command (such as Maven or Gradle) to perform the test. 4. Use the advanced features of Junit Jupiter Junit Jupiter provides many advanced functions, making the test more flexible and powerful.Here are examples of some common functions: -Aparable test: Use `@parameterizedTest` and@valueSource` annotations to easily perform tests of multiple groups of parameters. -Condition test: use the conditions such as `@ENABLEDONOS`,@Disabledonjre` and other conditions can be enabled or disabled according to the different operating environment. -Thenic test: Use `@test` and@exception` annotations can test whether the method is thrown out of the expected abnormalities. -Rerexiac callback: Using the `@beforeeach` and@afterreach` annotations can perform some preparation and cleanup operations before and after the test method execute. These examples are just a small part of the function of Junit Jupiter, which are related to actual project requirements. By following the above best practice, using the Junit Jupiter framework for Java development in Java development will become simpler and reliable.It provides rich functions and flexible test options that can help developers write high -quality unit testing, thereby improving the quality of code.