pytest-check
A pytest plugin that allows multiple failures per test.
Decision gist · record as of 2026-08-14
Yes. The plugin solves a real testing problem—seeing all failures at once rather than fixing them iteratively—with low install friction, active maintenance, no known vulnerabilities, and a permissive MIT license. It integrates cleanly with pytest and requires only common dependencies. Suitable for any test suite where comprehensive failure reporting per test is valuable.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires pytest to be installed; Python 3.9 or later.
- Low install friction with a pure-Python wheel and only three runtime dependencies (pytest, packaging, typing-extensions).
- Actively maintained with a recent release.
License · maintenance · safety
(unclear) — MIT license permits commercial and private use with minimal restrictions; attribution required.
last release 2026-08-01 (13 days) · last repo commit 2026-08-01 · 425 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 4,041,371 downloads/mo, #2,392 on PyPI
Alternatives
Verify before relying
pip install pytest-check
from pytest_check import check
def test_example():
with check:
assert 1 == 1
with check:
assert 2 == 2- Whether the plugin works with pytest fixtures and parametrization patterns beyond the documented examples.
- Performance impact when running hundreds or thousands of checks in a single test.
What it is and what it does
pytest-check is a pytest plugin that changes how assertion failures are handled within a test function. Normally, a test stops at the first failed assertion. This plugin allows you to wrap assertions in a `with check:` block (or use its helper functions like `check.equal()`) so that failures are recorded but execution continues, letting you see all the problems in one test run instead of fixing them one at a time.
The plugin provides both a context-manager interface and a set of built-in validation functions covering common comparisons (equality, identity, containment, type checks, numeric comparisons, NaN checks, and approximate equality). You can also decorate your own helper functions with `@check.check_func` to turn them into non-blocking checks, or use `check.fail()` for custom failure reporting. It includes a `check.raises()` context manager for non-blocking exception testing.
Use it for
- Validate multiple properties of an HTTP response (status code, headers, body content) without stopping at the first failure.
- Check all fields in a parsed data structure or API response in a single test run.
- Run a loop of similar checks (e.g., validating multiple items) and collect all failures before reporting.
- Test configuration or setup code where you want to verify all invariants hold, not just the first one.
- Regression testing where you want a comprehensive view of what broke across multiple assertions.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The plugin solves a real testing problem—seeing all failures at once rather than fixing them iteratively—with low install friction, active maintenance, no known vulnerabilities, and a permissive MIT license. It integrates cleanly with pytest and requires only common dependencies. Suitable for any test suite where comprehensive failure reporting per test is valuable.
Install
pytest-check on PyPI
Before you install
Low install friction with a pure-Python wheel and only three runtime dependencies (pytest, packaging, typing-extensions). Actively maintained with a recent release.
Requires pytest to be installed; Python 3.9 or later.
License in practice
MIT license permits commercial and private use with minimal restrictions; attribution required.
Quickstart
pip install pytest-check
from pytest_check import check
def test_example():
with check:
assert 1 == 1
with check:
assert 2 == 2Verify before relying
- Whether the plugin works with pytest fixtures and parametrization patterns beyond the documented examples.
- Performance impact when running hundreds or thousands of checks in a single test.
Package facts
| License | Not declared unclear |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 3 packagespackagingpytesttyping-extensions |
| Maintenance | Actively maintained 13 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 4,041,371 / month, #2,392 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableFramework :: PytestIntended Audience :: DevelopersProgramming Language :: PythonProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.9Topic :: Software Development :: TestingTopic :: Utilities |
Evidence: pytest_check-2.9.1-py3-none-any.whl
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See also pytest-assume · pytest-runtime-xfail · softest · pytest-rerunfailures · pytest-github-actions-annotate-failures · pytest-deepassert · pytest-raises · re-assert · pytest-pretty · pytest-cache