What are the best practices for testing RxJS code?

What are the best practices for testing RxJS code?

When testing RxJS code, it's important to use marble testing for observables, ensure proper subscription management, and mock dependencies.

Can you explain marble testing?

Marble testing allows you to visualize the timing and values of observables using a string representation, making it easier to understand and verify behavior.

What tools can I use for marble testing?

You can use libraries like Jasmine with RxJS's testing utilities, or Jest with the 'jest-marbles' package for marble testing.

How do I handle errors in RxJS tests?

You can simulate errors in your tests by using the 'throwError' function and asserting that your error handling logic works as expected.

Any tips for improving test performance?

To improve test performance, avoid unnecessary subscriptions, use 'TestScheduler' for precise timing, and clean up after tests.