How can I test mutable data in my application?

How can I test mutable data in my application?

Testing mutable data involves ensuring that changes to data structures behave as expected. You can use unit tests to verify that your functions correctly modify the data.

What tools can I use for testing mutable data?

You can use testing frameworks like Jest for JavaScript, JUnit for Java, or pytest for Python. These tools allow you to write tests that check the state of your mutable data.

Can you give me an example of a test case?

Sure! For a simple counter object, you might have a test that checks if incrementing the counter updates its value correctly.

What if my mutable data is in a database?

In that case, you can use integration tests to verify that your database operations correctly modify the data. Tools like SQLAlchemy for Python can help with this.