Collections of API tests in Postman and Insomnia

Colleagues, I wish you all a good day.

For beginner testing specialists

Author: Nadezhda Dudnik

I recently shared information on how to create test cases for the backend (read the article API test case templates, idempotency test cases).

Now I want to demonstrate examples of creating queries based on data test cases for site:

UI: https://try.vikunja.io/login
API documentation: https://try.vikunja.io/api/v1/docs

Let’s look at the following functional checks on API:

_{New User Registration
Registering with an existing username
Registration with existing email
Successful authorization and receipt of a token
Creating a project
Getting project information by id
Updating a project by id
Deleting a project by id
Creating a task
Getting all tasks in a project
Getting task information by id
Updating a task by id
Deleting a task by id
Adding a label to a task (you can add several)
Creating a label
Getting all labels in a task
Getting label information by id
Updating a label by id
Removing a tag by id}

Creating queries based on test cases in tools:

Postman

Postman (Version 10.20.3, OS platform win32 10.0.19045 at the time of writing)

This is what a collection of queries looks like:

Variables with their values ​​are declared in the collection itself:

Code on the tab Tests to set variables to the collection:

в запросе POST Login

var jsonData = JSON.parse(responseBody);
pm.collectionVariables.set("token", jsonData.token);

Токен можно объявить или через вкладку "Headers" как Authorization: Bearer {{token}} 
или
через вкладку "Authorization" -> type 'Bearer Token'

в запросе PUT Creates a new project

var jsonData = JSON.parse(responseBody);
pm.collectionVariables.set("project_id", jsonData.id);

в запросе PUT Create a task

var jsonData = JSON.parse(responseBody);
pm.collectionVariables.set("task_id", jsonData.id);

в запросе PUT Create a label

var jsonData = JSON.parse(responseBody);
pm.collectionVariables.set("label_id", jsonData.id);

Example of a request and response from the server:

View and download the collection: link to collection

Insomnia

Insomnia (Version: Insomnia 8.4.5, OS: Windows_NT x64 10.0.19045 at the time of writing)

This is what a collection of queries looks like:

Variables with their values ​​are declared in the environment:

The values ​​of the variables are taken as follows:

Example of a request and response from the server:

View and download the collection: link to collection

Conclusion

Based on these examples, I showed how to write queries and build a collection structure in Postman and Insomnia.

It is planned to introduce check scripts.

These examples will help not only in building queries, but also in writing functional test cases for the API during training and even at work.

Thanks for reading.

Sincerely, Nadezhda Dudnik (protestinginfo), chief testing engineer in fintech and software testing mentor.

And I wish you to achieve your goal!