Use PICT (pairwise independent combinatorial testing)

The Pict tool is a paired-combination command line generation tool used within Microsoft. It is now available for external use and can be downloaded on the Internet.

You need to input the input type and its corresponding parameters to a CSV format (CSV: a plain text file separated by commas (,) without any other format. The file uses commas (,) to separate fields and rows. The final file can be opened in Excel or in the import format of the program. The. CSV file will be opened in Notepad .)

For example:

Account name:	Null, does not exist, super long, ultra short, normal
Password:	Null, ultra-long, ultra-short, unmatched, normal
Verification Code:	Null, ultra-long, ultra-short, unmatched, normal
Session:	Save for one month, save for three months, save for one year, do not save
Button:	OK, cancel

The list shows that there are more than 1000 combinations. Testing it in a short time will be very difficult. Research shows that the number of test cases will be greatly reduced through pict, and a high test coverage rate can be ensured.

For example, run the parameter document directly through Pict and print the test routine on the screen, as shown below:

D: \ Test Method \ two test> PICT login.txt Account name and password verification code session button Null does not exist. Do not save for one year. OK. Null normally saved for one month canceled Long, unmatched, empty, and saved for three months. OK. Unsave and cancel The storage is canceled for three months. Null, super long, unmatched, not saved, OK Normal, short, normal, and saved for one month. OK. No matching exists. Saved for one month. Canceled. Null, normal, and saved for one year Super Long, normal storage, one year canceled Normally, it does not match. It is saved for three months and canceled. Normal mismatch, too long, not saved OK No extra long, saved for three months. OK. Saved for one year. There is no normal null save for one month OK Ultra-long, empty, and ultra-short storage canceled for one month Ultra-short, ultra-short, and unsaved Normal blank saved for one year OK Saved for one month. Super Short, normal, not saved OK Empty, ultra short, and saved for three months. Empty, ultra-short, and ultra-long, saved for one year Normal, ultra-long, ultra-short, not saved, canceled Null does not exist. Normally, do not save. OK. Super-long, super-short, unmatched, unsaved, canceled Saved for one month canceled with Super Short unmatched Super Long normal Super Long save one month canceled Null null save for one month OK Null does not match extra long save one month canceled No ultra-short, ultra-long, saved for one year canceled Empty, super long, no storage OK

You can also save the test case to a specified file as follows:

D: \ Test Method \ two test> PICT login.txt> example .xls

 

Parameter file format

It is also called a model file. The file must contain at least parameter definitions. The sub-model definition and constraint definition are optional. As follows:

Parameter Definitions [Sub-model definitions] [Constraint definitions]

For example, the preceding logon test parameter file is as follows:

# Logon Parameters   Account name: NULL, nonexistent, ultra-long, ultra-short, normal   Password: NULL, ultra-long, ultra-short, unmatched, normal Verification Code: NULL, ultra-long, ultra-short, unmatched, normal Session: save for one month, save for three months, save for one year, do not save Button: OK, cancel

Where, # Is the annotator. Note: The parameter file name must be in English, and the separators of parameters and parameter properties must be in English.

By default, Pict will generate test cases in pairs, that is, design test cases according to the two testing principles. However, you can also modify the parameter combination according to the actual situation. It can be implemented through parameter/o.

You can also restrict parameters based on your actual business needs. For example, if the account name, password, and Verification Code attributes are "normal", the session attribute can be "saved for one month", otherwise the session attribute is "not saved ". The parameter file is as follows:

Account name: NULL, nonexistent, ultra-long, ultra-short, normal Password: NULL, ultra-long, ultra-short, unmatched, normal Verification Code: NULL, ultra-long, ultra-short, unmatched, normal Session: save for one month, save for three months, save for one year, do not save Button: OK, cancel If [Account name] = "normal" and [Password] = "normal" and [Verification Code] = "normal" then [session] = "save for one month" else [session] =" do not save ";

Note: The Terminator of the Condition Statement is a semicolon.

The condition statements of PICT support: =, <>,>,> =, <, <=, like, not, And, or ...... Parameter comparison is also supported.

PICT reduces the number of test cases while ensuring test coverage. However, if the business logic is complex, you need to write a large number of condition judgment statements in the parameter file. Comprehensive Judgment is required in actual situations. This tool can be used if necessary.

Use PICT (pairwise independent combinatorial testing)