3. Unit Testing Policies

Question 1

What interfaces are the most important to us when it comes to unit testing policies and why?

Answer 1

The execution interfaces IAsyncPolicy and IAsyncPolicy.

These are very important because they provide the interface of the ExecuteAsync method for Retry, Timeout, Fallback, Circuit Breaker, and the Cache policies.

Question 2

What are the policy-specific interfaces in Polly?

Answer 2

1. IRetryPolicy
2. ITimeoutPolicy
3. IBulkheadPolicy
4. ICircuitBreakerPolicy
5. IFallbackPolicy
6. INoOpPolicy
7. IPolicyWrap

Question 3

What kind of interfaces do we use in order to test non-execute methods of policies?

Answer 3

Policy-specific interfaces such as IRetryPolicy, ITimeoutPolicy, and more.

Question 4

What interface does a policy registry implement?

Answer 4

IPolicyRegistry