ExUnit
Built-in unit testing framework for Elixir, ships with the standard library and supports async tests, assertions, doctests and tagged test filtering.
Our Verdict
One of the best-feeling built-in test frameworks in any language, a real BEAM perk.
Pros
- Ships with Elixir, zero install friction
- Async by default, exceptionally fast test suites
- Doctests turn docs into executable truth
- Clear, opinionated API, little to configure
Cons
- Elixir-only, obviously
- Less mocking culture, Mox learning curve
- Thinner ecosystem than JUnit or Jest
- Async state leaks bite new Elixir devs
When to Use ExUnit
Good fit if you need
- Async-first unit tests for Elixir applications
- Doctest execution embedded in module documentation
- Tag-based test filtering for focused CI runs
- Built-in property-based test support via StreamData
Pricing
Price wrong?ExUnit Pricing
- Pricing Model
- free
- Free Tier
- Yes
- Entry Price
- —
- Enterprise Available
- No
- Transparency Score
- —
Beta — estimates may differ from actual pricing
Estimated Monthly Cost
$25
Estimated Annual Cost
$300
Estimates are approximate and may not reflect current pricing. Always check the official pricing page.
Project Health
Health Score
10
today
140d
19
1d
Apache-2.0
Last checked: 2026-04-21
Lock-in Assessment
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