The method of construction read Note 06

Software Testing

1.bug, software defects

There are many kinds of bugs, not only the errors in the program, but also the users ' reports, problems that do not meet the user's requirements, etc.

Bugs can be broken down into symptoms, program errors, root causes

Symptoms, which are problems that occur during user use, for example, a flashback.

Program error, that is, from the perspective of the code, to find out the cause of the problem in the code, under what circumstances, the code will appear the error.

The root cause, the root cause of the code error, is the specific problem in the code.

2. Software Test classification

A. Classification by method of test design

Black box: Refers to the design of the test process, the software system as a "black box", unable to understand or use the system's internal structure and knowledge. The test is designed from the behavior of the software, not from the internal structure.

White box: Refers to the design of the test process, the designer can "see" the internal structure of the software, and use the software's internal and knowledge to select test data and specific test methods.

B. Classification by Test purpose

Functional testing:

The method of construction read Note 06