Testing

Rust and Cargo have a very good system for testing. However, there are still many useful utility crates that make testing easier. Some of them are listed below:

• actix-http-test

  

  Various helpers for Actix applications to use during testing

• httpmock

  

  HTTP mocking library for Rust

• insta

  

  A snapshot testing library for Rust

• mockito

  

  HTTP mocking for Rust.

• mock_derive

  

  An easy to setup, rich mocking library for the Rust programming language.

• mockall

  

  A powerful mock object library for Rust.

• mocktopus

  

  Mocking framework for Rust

• proptest

  

  Hypothesis-like property-based testing and shrinking.

• quickcheck

  

  Automatic property based testing with shrinking.

• rstest

  

  Rust fixture based test framework. It use procedural macro to implement fixtures and table based tests.

• tokio-test

  

  Testing utilities for Tokio- and futures-based code

• wiremock

  

  HTTP mocking to test Rust applications.