Rust Mocking: mockall and Mock Traits
Mocking in Rust is fundamentally different from dynamic languages. You can’t monkey-patch methods or swap implementations at runtime. Rust’s static typing and ownership rules make the patterns you’d…
Read more →Mocking
Python unittest.mock: Mocking Objects and Functions
Unit tests should test units in isolation. When your function calls an external API, queries a database, or reads from the filesystem, you’re no longer testing your code—you’re testing the entire…
Read more →Mocking: Stubs, Mocks, Fakes, and Spies
Every non-trivial application has dependencies. Your code talks to databases, sends emails, processes payments, and calls external APIs. Testing this code in isolation requires replacing these…
Read more →