Comparison of software unit test tools

I. jtest

1Introduction:

Jtest is an automatic white-box testing tool launched by parasoft for Java. It implements Java UNIT TESTING ANDCodeStandard verification to improve code reliability. Jtest analyzes each Java class first, then automatically generates JUnit test cases and executes the use cases to achieve maximum code coverage and expose unhandled exceptions during code running. In addition, it can also check the correctness of the Code developed with the design by contract specification. You can also add more JUnit cases by extending the automatic generator of test cases. Jtest can also check and automatically correct deviations in most common encoding rules according to more than 350 existing encoding standards. You can customize these standards by a few simple clicks, this prevents code problems such as unprocessed exceptions, function errors, memory leaks, performance problems, and security risks.

2. Advantages:

1) make it possible to prevent code errors, greatly saving costs and improving software quality and development efficiency

2) Make unit tests-including white boxes, black boxes, and regression tests possible

3) make code specification check and automatic correction possible

4) encourage the development team to collaborate horizontally to prevent code errors

3. features:

1) automatically prevents basic code errors through simple clicks, including unit testing and code specification check.

2) Generate and execute JUnit unit test cases and perform real-time checks on the code

3) provides a quick way to perform black box testing, model testing, and system testing.

4) identify and prevent uncaptured exceptions, function errors, memory leaks, performance issues, and security vulnerabilities in the code

5) Coverage of monitoring tests

6) Automatic regression testing

7) Support for DBC encoding specifications

8) check more than 350 development specifications from Java experts

9) automatically correct errors that violate more than 160 encoding rules

10) allows users to customize encoding standards through graphical or automatic creation

11) support sharing of test settings and test files in development of large teams

12) security integration with IBM WebSphere Studio/Eclipse IDE

4. Price: Expensive

Ii. jmeter

1. Introduction:

Jmeter is open to Apache organizationsSource codeProject, which is a tool for functional and performance testing, 100% of which is implemented in Java. Use jmeter for Performance Testing

2. features:

Jmeter can be used to test the performance of static or dynamic resources (files, Servlets, Perl scripts, Java objects, databases and queries, FTP servers, or other resources ). Jmeter is used to simulate attaching high loads to servers, networks, or other objects to test their ability to provide services, or to analyze the overall performance of the services they provide under different load conditions. You can use the graphic interface provided by jmeter to analyze performance indicators or test the behavior of servers, scripts, and objects under high loads.

3. Price: Unknown

Iii. JUnit

1. Introduction:

JUnit is an open-source Java testing framework. It is an implementation of the xuint testing architecture. Three overall objectives were set during the design of the JUnit unit test framework. The first goal was to simplify the preparation of the test, which included learning the test framework and compiling the actual test unit; the second is to make the test unit persistent; the third is to use existing tests to compile related tests.

2. Advantages:

(2.1) JUnit is completely free.

2.2) easy to use. Before you upgradeProgramIn terms of code quality, the JUnit test still allows you to write programs more quickly. It does not sound intuitive, but it is a fact. When you use JUnit to write tests, you will spend less time debugging and have more confidence in the changes to your program code. This confidence allows you to more actively reorganize program code and add new features. Without testing, you will become unconfident in restructuring and adding new features, because you do not know what will disrupt the output results. Using a comprehensive test series, you can quickly execute multiple tests after changing the program code and feel confident that your changes have not broken anything. If you find Bugs During the test, the original code is still clear in your mind, so it is easy to find bugs. The tests written in JUnit help you write programs at an extremely large (extreme) pace and quickly identify weaknesses.

2.3) JUnit is very easy to write and test-this is the key! If writing a test is too complex or too time-consuming, the programmer cannot be asked to write the test. With JUnit, you can quickly write and test your program code and add testing as the program code grows. As long as you write some tests, you want to perform the tests quickly and frequently without interrupting the creation of design and development programs. Using JUnit for testing is as easy as compiling your program code. In fact, you should also execute tests during compilation. Compilation checks the syntax of the program code, while testing checks the integrity of the program code ).

2.4) JUnit tests and tests the results and provides immediate feedback. If you want to manually compare the test results with the actual results, the test is not fun, and it slows down your speed. JUnit tests can be executed automatically and their own results can be checked. When you perform the test, you get simple and immediate feedback. For example, the test passes or fails. Instead of manually checking the test results.

2.5) The JUnit test can combine a hierarchical architecture of the test series. JUnit can organize tests into test series, which can contain other test or test series. The merging behavior of JUnit testing allows you to combine multiple tests and perform automatic regression testing from start to end. You can also perform tests at any layer in the test series hierarchy.

2.6) The costs for writing JUnit tests are not high. With the JUnit testing framework, you can write tests cheaply and enjoy the confidence provided by the testing framework. Writing a test is as simple as writing a method. testing is to test the program code to be tested and define the expected results. This testing framework provides a background for automatic testing. This background is a part of other testing sets. A small investment in testing will continue to allow you to reclaim time and quality.

2.7) JUnit testing improves software stability. The less test you write, the less unstable your program code. Testing Makes the software stable and accumulates confidence gradually, because any change will not cause a ripple effect and the entire software is diffuse. The test can form the complete structure of the software.

2.8) JUnit testing is a developer testing. JUnit testing is a highly regional test to improve developers' productivity and program code quality. Unlike function test, which regards the system as a black box to determine the overall functionality of the software, unit test is a construction block based on the internal and external testing system. Developers write and have JUnit testing. Every time a development repeat is completed, this test is packaged into a part of the Software Delivery that provides a way of communication, "this is the software I deliver and is tested.

2.9) JUnit testing is written in Java. Use Java to test Java to form a seamless boundary between testing and program code. Under the control of the test, the test becomes an extension of the entire software, and the program code can be reorganized. The unit test static syntax check of the Java compiler can help the test program and confirm compliance with the software interface conventions.

The code of a tested program cannot be executed independently. It must be a part of the execution environment. At the same time, it requires automated unit tests-for example, periodic execution of all tests in the system to prove that nothing has been destroyed. Because unit tests must comply with specific rules: a successful test should not be manually checked (it will be too old ), A failure to pass the test should generate a file for diagnosis and modification. JUnit can provide us with these conveniences .. In this way, all the test developers need to write only the test code itself. Compared with optimizeit and jtest tools that are expensive and super troublesome, their benefits are obvious!

3. Price: free