Types of API testing
If you are looking for API keys and testing options, there are several different types of tests you should know. Some of the most common types of API testing include:
One of the first types of API testing that you might complete is called validation testing. There are three separate criteria that will be tested using this method. They include:
- Is the product relatively easy to use?
- Does the program respond correctly?
- How efficiently does the program run?
During this test, you should look for security or compliance issues that need to be corrected. You should also look at the coding to see if anything can be improved.
During functional testing, you'll make sure that the API performs as it should. You will enter specific commands to identify certain functions and make sure they react as you expect.
The program should respond within the expected parameters, and it should be able to rectify errors if the results are outside of those specific parameters. During this testing step, you can identify certain issues that need to be corrected.
Performance testing examines how the program will respond under a certain set of conditions. For example, if you give the program a negative command, how does it handle it? You want to run the program through multiple sets of hypothetical conditions to ensure it responds as it should and will not crash.
This stands for user interface testing. During this type of testing, you will have a hypothetical user interact with the program to make sure the program responds as it should.
This also gives you a chance to talk to a hypothetical user and see if they have any suggestions for ways you can improve the program. That way, you can make sure that your users are happy down the road.
The API should have certain encryption methods as a security measure, and you need to make sure that those encryption methods are strong.
During this step, you will also test the access control design to ensure it's solid. You will also need to validate the authorization checks for certain user rights and access.
During load testing, you will test the program to see how many calls it can handle at once. You need to make sure the program can handle an adequate number of commands and still function properly.
There is a chance that the program deals with a large number of commands and calls at once, so it's important to ensure it will not break down.
Penetration testing is another type of security testing. For example, during website development, you might run some tests to make sure a hacker can't break into the website and steal confidential information.
During this test, you will ask someone with limited knowledge of the API to try to attack the program from the outside. The goal of this type of test is to identify gaps or holes in the security layer and fill them before the program is released.
Fuzz testing refers to inputting large amounts of random data, also known as noise. The goal of this process is to try to confuse the program, creating a bunch of static in the background.
You want to see if you can force the program to crash or otherwise elicit some sort of negative behavior. Then, if you identify any issues, you can fix them before the program is released.