rust-pretty-assertions/rust-pretty-assertions

Health v2 · maintenance only

Adoption not part of the score

1358 stars · 46 forks observed · 2026-09-27

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Rust crate that provides drop-in replacements for assert_eq! and assert_ne! macros with colorful, human-readable diffs on failure. It is intended as a dev-dependency to improve test failure output with minimal code changes.

Use cases

• make rust test failures easier to read
• show a colorful diff when assert_eq fails
• drop-in replacement for std assert_eq in tests
• compare large structs in tests and spot differences quickly
• improve assertion output for strings and collections

When to choose

• you write Rust tests that use assert_eq! and want clearer failure messages
• you want a one-line change to improve test diagnostics
• you want to avoid affecting production build compile times via dev-dependencies

When to avoid

• you need exact, stable assertion output for snapshot testing
• you need assertions in production code rather than tests

Facets

library · maturity active

testing testing developer-tools rust cross-platform assertions diff rust-crate dev-dependency test-output

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