Agreeing on an approach for API testing when beginning API development is an essential API strategy. Let's look at a few principles of API testing:
- Clear definition of the scope and a good understanding of the functionality of the API
- Common testing methodologies such as boundary analysis and equivalence classes are part of API test cases
- Plan, define, and be ready with input parameters, zero, and sample data for the API
- Determine and compare expected and actual results, and ensure that there are no differences