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This article mainly explains "what testing frameworks and libraries does Java have". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what testing frameworks and libraries does Java have".

Getting started with Java

If you are new to the Java world, the first thing to do is to install JDK--Java Development Kit (Java Development Kit), which comes with Java Runtime Environment (JRE) and JVM (Java runtime environment). It allows you to compile, run, and test your Java programs on your own computer.

In addition, you need IDE (integrated development environment). There are many choices, such as IntelliJ, Eclipse, and NetBeans.

Want to improve your automated testing skills? Let's take a look at eight excellent testing frameworks and libraries and an overview of their common usage.

JUnit

JUnit needless to say, even rookies may have heard of it, and you can use it to write unit tests for Java code.

Almost all major IDE, such as Eclipse,NetBeans and IntelliJ, integrate JUnit, and unit tests can be written and run directly in these IDE.

Most people are still using JUnit 4, and even though JUnit 5 has been released, it is likely to be the next hot spot this year. With JUnit 5, JUnit can be applied to both unit testing and integration testing, and it also supports the features of Java 8.

REST Assured

Testing and verifying REST services with Java is more difficult than dynamic languages such as Groovy.

REST Assured brings the ease of use of this kind of language into the field of Java and is an excellent integrated testing tool for REST API.

Selenium

Selenium is probably the most popular Java UI testing tool, which allows you to test JSP pages without having to start a browser.

You can use JUnit and Selenium to test the interface of Web programs, and it even allows you to write acceptance tests for Web applications.

TestNG

TestNG is a testing framework inspired by JUnit and NUnit, but also introduces some new features to make it more powerful and easier to use. For example, you can use annotations to configure various available strategies for testing in any large thread pool (for example, all methods are in their own threads, each test class uses one thread, and so on).

Because TestNG uses JUnit 4 annotations and integrates the HAMCSTREST matcher, the difference between it and JUnit has been reduced, but it's up to you to choose between the two.

Cucumber

Cucumber is another important automated integrated testing tool, but unlike other tools in the same category, it can automate testing against specification documents.

Cucumber synthesizes the specification document and the test document into the entire dynamic document, while Cucumber automatically tests the document to keep the test specification up-to-date.

Spring Test

Spring MVC comes with a useful testing framework that allows in-depth testing without introducing a Web container.

Spring Test is one of the most useful libraries for writing automated tests for Spring programs. Spring Test provides best-in-class support for writing unit tests and integration tests for Spring-driven applications (including MVC controllers).

In addition, Spring Test DbUnit integrates the Spring Test framework and DbUnit;Spring Test MVC HtmlUnit integrates the Spring Test MVC framework and HtmlUnit.

By using these tools, you can easily test Spring MVC applications automatically.

DBUnit

Databases are an integral part of many Java applications, including core Java and Web applications, and may also be the biggest obstacle to unit testing.

When conducting integration testing, connecting to the development environment or the database of the user acceptance test is not reliable because anyone can change the data schema and the data itself, such as tables and stored procedures, which can cause automated integration tests to fail.

DbUnit is an JUnit extension that initializes the database to a known state before each integration test to ensure that the database stores the correct data.

DbUnit has some problems of its own, but it is a very useful tool because it can help us separate test data from test code.

Robot framework

Robot framework is a general test automation framework based on Python for acceptance testing and acceptance test-driven development.

It is a keyword-driven testing framework that uses tables to test data syntax and can be used to test distributed heterogeneous applications involving a variety of technologies and interfaces.

Thank you for your reading, the above is the content of "what testing frameworks and libraries does Java have". After the study of this article, I believe you have a deeper understanding of what testing frameworks and libraries Java has, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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