Unit Testing and Encapsulation 5.1

Test Cases
Test Project Name	Arithmetic Simple test
Test personnel	Feng Meixin, Wu Shu Ting	Date of establishment	April 30, 2015
Functional characteristics	To test this arithmetic.

Black box test:

The main thing is to test the function of the code with input validity in order to understand or use the internal structure and knowledge of the system.

input type	Input data	Expected output	Actual output	Test status
1 Correct values	(3,4,+)	7	7	That's right
2 numeric value with illegal characters	(2,3w,-)	An exception occurred	An exception occurred	That's right
3 Subtraction	(4,2,/)	2	2	That's right
4 Illegal operators	(2,4,G)	Illegal characters	Illegal characters	That's right
5 Division Denominator is 0	(3,0,/)	Prompt appears	The divisor cannot be 0	That's right

White box test:

In the process of designing tests, we test the internal structure of the program, understand the extent of the code, find errors, and reduce the code.

Test Cases	Use case description	Overridden Code	Test results
1 (1,1,-)	Input of numeric values	Calcutest (1-18)	Run successfully without failure
2 (3,5,6)	Illegal operator	On the previous basis in the execution of calculate (14) i.e. (60-77)	Can judge illegal characters
2 (4,5,+)	Whether to run addition	Calculate 17-18 Lines	Run successfully without failure
3 (1,2,-)	Whether to run subtraction	Calculate 19-20 Lines	Run successfully without failure
4 (6,7,*)	Whether to run multiplication	Calculate 21-22 Lines	Run successfully without failure
5 (9,3,/)	Whether to run division	Calculate 22-38 Lines	Run successfully without failure
6 (3,0,/)	The denominator cannot be 0	Calculate division inside (25-30 lines)	Run successfully without failure
7 (2,e,-)	Illegal characters	Input 40-57	The test is correct, but the program is small.
Code Coverage	90D

For the 7th Picture:

Main code in: Small partner Feng Meixin (http://www.cnblogs.com/maxx/)

Simple encapsulation, which reinforces the simplicity of the code

Unit Testing and Encapsulation 5.1