What should be covered in integration testing?
Integration test cases focus mainly on the interface between the modules, integrated links, data transfer between the modules as modules/components that are already unit tested i.e. the functionality and the other testing aspects have already been covered.
Are API tests integration tests?
API testing is a type of software testing that involves testing application programming interfaces (APIs) directly and as part of integration testing to determine if they meet expectations for functionality, reliability, performance, and security. Since APIs lack a GUI, API testing is performed at the message layer.
How to test integration of your web APIs?
Our integration test only requires a TestHost and the actual Web API call. When we receive the response from the controller, we deserialize the string into our objects so we can now use them in our application. You can even test any verbs in your APIs: GET, POST, PUT, DELETE.
How to use httpclient in unit testing Web API?
In the following example I created a simple ApiController that uses attribute routing. I configured the HttpConfiguration to map attribute routes and then passed it to the new HttpServer. The HttpClient can then use the configured server to make integration test calls to the test server.
Can you test any verbs in an API?
You can even test any verbs in your APIs: GET, POST, PUT, DELETE. This makes your integration tests for your APIs so much easier. Code can be found here. I love how this technique pushes the evolution of web testing even further to make your applications more stable and reliable.
Why are API tests important for your business?
API tests are fast, give high ROI, and simplify the validation of business logic, security, compliance, and other aspects of the application. In cases where the API is a public one, providing end-users programmatic access to our application or services, API tests effectively become end-to-end tests and should cover a complete user story.