Understand software testing

1. Definition of software testing

software test ： Operate the program under specified conditions , To find out the mistakes in the program , Ensure the quality of the software , And to evaluate whether it can meet the design requirements .

To put it simply , Software testing is a process of auditing or comparing the actual output with the expected output .

The actual output ： After the developer writes the software program , The test engineer performs the specified steps on it , Data presented by software programs / Screen and other result information .

Expected output ： The product manager （ A set of rules and standards formulated or analyzed by demanders according to customer requirements ）

Personal understanding notes （ According to the prototype , The requirements document , And the understanding of requirements by Requirements Review , Development communication , Find your own logic to sort out the testing work , So as to work ）

Personal understanding ： It's equivalent to the doctor finding the cause , Review , Confirmed etiology , So as to treat , Ensure the patient's recovery .

2. Why software testing is needed

There are no disciplines such as software testing in universities , major . In order to ensure that the expected output of the software is consistent with the actual output , Guarantee the reputation of the company , credibility , Economic and other unnecessary losses , Ensure the quality of software delivered to customers , So software testing is needed .

3. Software testing prospects

At present, the front-line demand is almost saturated , Second line demand is great , The requirements for academic qualifications are getting higher and higher , More and more curly , A large number of non computer personnel from other majors enter , Carry out a brutal elimination mechanism . The technical requirements are excellent , Only with a good degree can you get along in the industry .

A functional test 5 To 20k about , The salary of business experts is higher .

Interface automation testing , Interview more and more need to know , Salary is good , Most use java Write scripts in language , Tools postman,jmeter, The treatment is quite good .

The interface test ： Single interface test , Use tools or code .

White box testing ： That is to find out the logic of the original code Bug, Increase of efficiency , Short for open test .

Big data test ： I don't know much , Need to have python Basics , The salary is very high .

Performance testing ： Good pay , The area where many big men gather .

Security testing ： It's almost the big guy among the big guys .

UI automated testing ： A few enterprises are recruiting , Interview needs to be familiar with , Salary is good .

So the author is only in the functional testing stage , So the understanding is not very deep , I hope the boss will correct .

4. Why don't developers test themselves

Limitation of thinking , Plus there is not enough time , Insufficient testing , The angles are different , Not enough attention , There are specialized skills . Some of the primary development foundation of the forward business can not be done , And test engineers need to think positively , Reverse thinking logic attempts to destroy the software business function test , So we need software test engineers . Developing itself often , Will not admit their mistakes , More indirectly prove the importance of software test engineers to a company .