JUNIT JUPITER (Aggregator) Framework's use in continuous integration
JUNIT JUPITER (Aggregator) Framework's use in continuous integration
## Introduction
Continuous integration is a software development practice. Through automated construction, testing, and deployment, it is guaranteed to quickly detect and repair potential problems after submitting the code for team members.This practice can improve code quality, speed up delivery and teamwork efficiency.
In continuous integration, automation testing is a vital part.Through automated testing, developers can quickly verify the correctness of the code and reduce the risk of introducing new problems.To achieve automated testing, we usually need to use a mature test framework.
## junit jupiter framework
Junit Jupiter is part of Junit 5, which is a flexible, scalable and easy -to -use Java test framework.It provides many new functions and improvements, making the preparation and execution test cases more simple and efficient.
Junit Jupiter framework provides rich test writing and organizational functions by using extension models and annotations.It supports the characteristics of parameterized testing, conditional testing, parallel execution, and dynamic generation of test methods.In addition, the Junit Jupiter framework compatible with the test in Junit 4, and can be integrated with other testing frameworks (such as Testng).
## Skills of Junit Jupiter in continuous integration
In continuous integration, the Junit Jupiter framework can help us write and execute automated test cases.Here are some useful techniques that can improve the quality and reliability of test cases.
### 1. Use Junit Jupiter's assertion
The Junit Jupiter framework provides a wealth of assertions to verify whether the test results and expectations are consistent.Unlike Junit 4, Junit Jupit's assertions do not depend on static import, but use more elegant and flexible Lambda expression and method reference.
For example, using `Assertions.assertequals ()` method can compare whether the two objects are equal:
import org.junit.jupiter.api.Assertions;
@Test
void testEquals() {
String expected = "Hello";
String actual = "Hello";
Assertions.assertEquals(expected, actual);
}
### 2. Parameterization test
JUNIT JUPITER framework supports the use of `@parameterizedtest` to perform parameterization tests.Through this annotation, the same test method can be repeatedly run under different input conditions to enhance the test coverage.
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
@ParameterizedTest
@ValueSource(ints = {1, 2, 3})
void testParameterized(int value) {
Assertions.assertTrue(value > 0);
}
### 3. Condition test
Junit Jupiter framework supports the use of `@ENABLEDONOS`,@Disabledonos`,`@ENABLEDIFSYSTEMPROPROPRERTY and other annotations, and perform or disable certain test methods under different conditions.
For example, using the `@ENABLEDONOS` annotation can specify that only running the test method on a specific operating system:
import org.junit.jupiter.api.condition.EnabledOnOs;
import org.junit.jupiter.api.condition.OS;
@EnabledOnOs(OS.WINDOWS)
void testOnWindows() {
// Test the test method of using the Windows operating system
}
### 4. Pay test test in parallel
The Junit Jupiter framework supports the execution method of using the `@Execution` annotation to adjust the test method, including serial, parallel and multiple operations.
import org.junit.jupiter.api.Execution;
import org.junit.jupiter.api.parallel.ExecutionMode;
@Execution(ExecutionMode.CONCURRENT)
void testParallelExecution() {
// Test method for parallel execution
}
### 5. Dynamic test
The Junit Jupiter framework supports the use of the `dynamictest` interface dynamic generation test.This is very useful for the need to generate a large number of test cases according to different conditions.
import org.junit.jupiter.api.DynamicTest;
import org.junit.jupiter.api.TestFactory;
import org.junit.jupiter.api.function.Executable;
@TestFactory
DynamicTest testFactory() {
return DynamicTest.dynamicTest("Dynamic Test", () -> {
// Dynamic testing method
});
}
The above is only some of the Junit Jupiter frameworks in continuous integration.By making full use of the rich features provided by the Junit Jupiter framework, we can write and perform test cases more efficiently, thereby improving the quality and efficiency of continuous integration.
references:
- [JUnit 5 User Guide](https://junit.org/junit5/docs/current/user-guide/)
- [JUnit 5: The Ultimate Resource](https://www.baeldung.com/junit-5)
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