Boundary value analysis method for learning basic content of software testing (2)

Design test points for boundary rules

* Boundary value analysis

   explain ：1、 Boundary range node 2、 Apply design steps 3、 Case study 4、 Applicable scenario

1. Boundary range node ： Selection is exactly equal to （ Upper point ）, Just bigger than , Just less than （ Departure point ） The value of the boundary as the test data .（ Inside point ： Generally, the middle point is taken , Points in range ）
2. Apply design steps ： Clear requirements    Determine valid and invalid equivalence classes

Determine the boundary range value    Extract data and write test cases

1. Case study 1   demand ： Title length is greater than 0, Less than or equal to 30 Characters

 

Table two sheet1

Case study 2   demand ：QQ Account No 6-10 Bit natural number

 

Optimize ：7 The first optimization is 5 individual

    Upper point ： Mandatory （ Section opening and closing are not considered ）

    Inside point ： Mandatory （ It is recommended to choose the middle ）

    Departure point ： Open the inside and close the outside

Use scenarios ： Common words describe ： size , Size , weight , Maximum , Minimum , At most equal

           Typical representative ： Input box class test with boundary range