faux
A Rust library for creating mocks from structs without requiring trait abstractions, designed for testing.
What is faux?
faux is a Rust library that creates mocks from structs for unit testing. It transforms structs and their methods into mockable versions, allowing developers to stub return values and behaviors without complicating production code with trait abstractions. It solves the problem of testing code that depends on external services or complex logic by providing a lightweight mocking solution.
Rust developers writing unit tests for applications or libraries that depend on structs with methods that need to be mocked, such as network clients, database connectors, or external service wrappers.
Developers choose faux because it avoids the overhead of trait-based mocking, allowing them to mock structs directly without polluting production code. It works on stable Rust, supports a wide range of method types (async, generic, trait methods), and integrates seamlessly with existing code using conditional compilation attributes.
Overview
Struct mocking library for Rust
Use Cases
Best For
- Mocking structs that interact with external APIs or services in tests
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