Advanced function of postman

Postman In addition to some functions introduced above , There are other small functions that may be useful in daily interface testing . today , Let's take stock of it , As shown below ：

1. Data driven

Want to execute interface use cases in batch , We usually put the corresponding interface use cases in the same Collection in , And then through Runner Batch execution . This method is applicable when the parameters of the interface use case are fixed , But there is another problem , If each run , Interface parameters are changing , How to operate ？

Children's shoes who have carefully read the previous article may have guessed , Parameterize the variable . But this way , There is another problem , You need to set the parameters in advance every time , For example Pre-request Script Set as follows ：

pm.environment.set("username","Surpass")
pm.environment.set("password","Surpass")

Use Pre-request Script Set environment variables and assign values no matter how many times they are run , In fact, it is still tested with fixed data .

Since neither of the above two methods can solve our problem , Then write the data to the file , Then read from the file is it possible ？ stay Postman In fact, it also provides this way .

This file is used to store test data , It is generally called test data set

stay Postman The test data set in supports two formats csv and json

csv Format

json Format

The data format is similar to a table , The first row corresponds to the variable name , The following data corresponds to the corresponding test data

Let's take a look at the operation steps ：

1、 open Run Collection Interface , Fill in the number of runs 、 Import test data set , Finally, click Run Collection

2、 The running results are as follows ：

2. Regular tasks

Postman Provides a Monitor function , Support the submission of test tasks with timing function , The interface use case can be executed according to the set timer , The operation is as follows ：

3. Interface dependency

Interface dependency is when executing an interface , Its data will depend on other interfaces , It is essentially a problem of interface data transmission . for example ： For example, when deleting users , You must bring the corresponding token, and token Only after the user logs in .

3.1 Interface execution sequence

1. Default execution order

stay Postman The default execution order in , Yes, according to the Collection Execute the directory sequence in , From top to bottom .

2. Custom execution order

If you execute in the default directory order , Usually cannot meet their business needs , Fortunately Postman Provides a function postman.setNextRequest(“ The interface name you want to jump ”), Support jumping to the specified interface for execution . for example ： After executing the interface user query , Skip interface user addition , Directly jump to execute password modification , An example is shown below ：

• 1、 In the user query interface Tests Add the following code to ：

• 2、 In the password modification interface Tests Add the following in ：

• 3、 Check the running results as follows ：

When using a custom interface to execute a sequence , The following points need to be noted ：

postman.setNextRequest() Only effective when running set tests , That is to say Run Collection When it comes into effect , It does not take effect when running the interface alone

postman.setNextRequest() At run time , The interface included in the jump will be ignored during jump , If the interface after the jump still has an interface, continue to run the subsequent interface , That is, if there is an interface A/B/C/D/E/F, If the set jump condition is A->D, Then the interface sequence of final execution is A->D->E->F,B and C Interface ignored

The interface specified by jump must be located in the same Collection Inside

postman.setNextRequest() Functions don't matter Tests Where is called in the script , It's only executed at the end of the current script .

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