software test，Describe a method used to promote the correctness of authentication software、Integrity、Safety and quality process。let me put it another way，Software testing is an audit or comparison process between actual output and expected output。The classic definition of software testing is：Operate the program under specified conditions，To find program errors，Measuring software quality，And the process of evaluating whether it can meet the design requirements。

Why should software be tested？How to test？Some people have very simple answers to these questions

Just in time programmers don't bother to test at all，Live happily in the present。More serious programmers will tell you that software testing is to develop high-quality products。In order to develop high quality products，You must always write unit and integration tests，And do QA test。Ignore these，Your code will fall into the abyss of bugs。

Mobile games、Medical devices and online stores are different。Each organization is different，The resources that start-ups and large multinationals have cannot be compared，It's totally different from NASA。

Every project goes through different stages，Products without users have a very different status from products with thousands of transactions，We will first consider the test method suitable for you。Then we'll think about why we need to test your software。last，We're going to combine methods and goals，To determine how you can test your software。