Application Programming Interface:
The team of GRhombustech will perform all the dedicated processes for creating, designing, deploying, and supporting the software for any business need. Application Programming Interface is also known as API as short, is a computing interface that establishes communication and provides data exchange between two separate software systems. The software system which executes the application programming interface has many functions that another software system can perform. Application programming interface defines requests that are made, how to make requests, what are data formats can be used etc.., between two software systems. The leading software development company in USA as in GRhombustech will engage with the clients to perform the best software testing US operations.
A great combination that brings forth artistry and engineering together!
What is API Testing?
API TESTING is a product testing type that validates Application Programming Interfaces (APIs). The reason for leading API Testing US, is to look at the usefulness, dependability, execution, and security of the programming points of interaction. In API Testing, rather than utilizing standard client inputs(keyboard) and yields, you use programming to send calls to the API, get result, and note down the framework’s reaction. API tests are altogether different from GUI Tests and won’t focus on the look and feel of an application. It focuses on the business rationale layer of the product design.
API automation Testing requires an application that can be communicated through an API. To test an API, you should
- Use Testing Tool to drive the API
- Compose your own code to test the API
Set-up of API Test environment:
API Testing is not quite the same as other programming testing types as GUI isn’t accessible, and yet you are required to set up an initial environment that invokes API with a required set of parameters and then finally examines the test result. GRhombustech imparts all the discussed environments and leads as the best software development company in USA.
Subsequently, setting up a testing environment for API automation testing appears to be somewhat mind-boggling.
Information base and server ought to be designed according to the application necessities.
When the establishment is done, the API Function ought to be called to look at whether that API is working.
Types of Output of an API
A result of API could be
- Any kind of information
- Status (say Pass or Fail)
- Call another API function.
Test Cases for API Testing:
Test Cases of API testing depend on
- Return value based on input condition: it is somewhat simple to test, as input can be defined, and results can be validated
- Doesn’t bring anything back: When there is no return value, a behavior of API on the framework to be checked
- Trigger a few different API/occasion/intrude: If a result of an API triggers a few events or interfere with, then, at that point, those events and interrupt listeners should be tracked
- Update information structure: Updating information design will have some result or impact on the system, and that ought to be verified
- Adjust specific resources: If API call alters a few resources then it must be validated by accessing the respective resources
API Testing Approach
API Testing Approach is a predefined technique or a strategy that the QA group will act to lead the API testing after the form is prepared. This testing does exclude the source code. The API testing approach assists with better understanding the functionalities, testing strategies, input boundaries and the execution of experiments. GRhombustech has its topology structured in a fashion that the best API testing systems will be approached in the most defined way.
The following points helps the user with the API Testing approach:
- Learn API testing shortly!!!
- Understanding the usefulness of the API program and clearly characterize the scope of the program
- Apply testing techniques such as equivalence classes, boundary value analysis, and error guessing and write test cases for the API
- Input Parameters for the API should be arranged and characterized appropriately
- Execute the test cases and look at expected and real outcomes.
Of course, there’s a corollary: The software that’s worth making is worth doing something new!!
Best Practices of API Testing:
- API Test cases should be categorized by test category
- On top of each test, you should include the declarations of the APIs being called.
- Parameters selection should be explicitly mentioned in the test case itself
- Prioritize API function calls so that it will be easy for testers to test
- Each test case should be as self-contained and independent from dependencies as possible
- Avoid “test chaining” in your development.
- Special care must be taken while handling one-time call functions like – Delete, Close Window, etc.
- Call sequencing should be performed and well planned
- To ensure complete test coverage, create API test cases for all possible input combinations of the API.
Types of Bug that API testing detects
- Fails to handle error conditions gracefully
- Unused flags
- Missing or duplicate functionality
- Reliability Issues. Difficulty in connecting and getting a response from API.
- Security Issues
- Multi-threading issues
- Performance Issues. API response time is very high.
- Improper errors/warning to a caller
- Incorrect handling of valid argument values
Response Data is not structured correctly (JSON or XML)