pytest HTML Reports: Generate Visual Test Summaries
Pytest's HTML reporting plugin is surprisingly powerful, but most users only scratch the surface, treating it as a glorified diff viewer instead of a st.
Pytest Articles
49 articles
pytest Hypothesis: Property-Based Testing in Python
Hypothesis can test your code with inputs you'd never dream of, often finding bugs in edge cases that traditional unit tests miss.
pytest Config: pyproject.toml, pytest.ini, setup.cfg
pytest Config: pyproject.toml, pytest.ini, setup.cfg — practical guide covering pytest setup, configuration, and troubleshooting with real-world examples.
pytest Logging: Capture and Assert Log Messages
Pytest's logging capture is a powerful tool that lets you treat log messages as first-class citizens in your tests, enabling you to verify not just retu.
pytest Markers: Filter and Categorize Test Cases
Pytest markers are a powerful way to categorize and filter your test cases, letting you run only specific subsets of your test suite.
pytest Microservices Testing: Test Each Service in Isolation
pytest Microservices Testing: Test Each Service in Isolation — practical guide covering pytest setup, configuration, and troubleshooting with real-world...
pytest Mocking: Mock with unittest.mock and pytest-mock
pytest Mocking: Mock with unittest.mock and pytest-mock — unittest.mock is a standard library that lets you replace parts of your system under test with...
pytest monkeypatch: Patch Functions and Attributes
monkeypatch is your secret weapon for testing code that interacts with the outside world or has hard-to-control dependencies.
pytest Multi-Environment: Test Against Dev, Stage, Prod
Testing against multiple environments like dev, staging, and production is a critical part of ensuring your application behaves consistently across its .
pytest Mutation Testing: Verify Test Suite Effectiveness
Mutation testing reveals how well your tests catch bugs by introducing small, deliberate "mutations" code changes and seeing if your tests fail.
pytest parametrize: Data-Driven Tests with Multiple Inputs
pytest parametrize: Data-Driven Tests with Multiple Inputs — pytest.mark.parametrize is the secret sauce for turning a single test function into a batte...
pytest Benchmarking: Measure Code Performance with pytest-benchmark
Pytest-benchmark lets you measure how fast your code runs, but it's not just about timing a function; it's about understanding the variance in that timi.
pytest Plugins: Essential Plugins Every Project Needs
pytest Plugins: Essential Plugins Every Project Needs — practical guide covering pytest setup, configuration, and troubleshooting with real-world examples.
pytest Production Test Suite: Best Practices Guide
The most surprising truth about running pytest in production is that its primary value isn't in catching bugs before they get there, but in helping you .
pytest Retry: Automatically Retry Flaky Tests
pytest-rerun failures is a plugin that can automatically re-run tests that fail due to transient issues, often referred to as "flaky" tests.
pytest Fixture Scopes: session, module, class, function
Pytest fixtures don't just provide setup and teardown for your tests; they're designed to manage resources at different granularities, and understanding.
pytest Skip and xfail: Handle Expected Failures
pytest Skip and xfail: Handle Expected Failures — pytest's @pytest.mark.xfail and @pytest.mark.skip are your go-to tools for managing tests that are e.
pytest Slow Tests: Profile and Speed Up Your Suite
pytest Slow Tests: Profile and Speed Up Your Suite — practical guide covering pytest setup, configuration, and troubleshooting with real-world examples.
pytest Snapshots: Snapshot Testing for Complex Outputs
pytest Snapshots: Snapshot Testing for Complex Outputs — practical guide covering pytest setup, configuration, and troubleshooting with real-world examp...
pytest SQLAlchemy: Test Database Operations Safely
Testing database operations with SQLAlchemy can feel like a minefield, but it doesn't have to be. The most surprising thing is how easily you can achiev.
pytest Test Doubles: Stubs, Fakes, and Dummies
A pytest test double isn't just a stand-in; it's a meticulously crafted illusion designed to isolate the unit under test by providing predictable, contr.
pytest TDD Workflow: Red-Green-Refactor in Python
The most surprising thing about pytest's TDD workflow is that the "test" phase is actually where you write the least amount of code that actually works.
pytest Teardown: Clean Up Resources After Every Test
When you're writing tests, especially for anything involving external resources like databases, files, or network connections, you absolutely need to cl.
pytest Test Discovery: Control Which Files Get Collected
When you run pytest, it doesn't just magically know which files contain your tests. It has a whole system for discovering them, and understanding that s.
pytest tmpdir: Create Temporary Files in Tests
pytest's tmpdir fixture is your best friend for tests that need to create files, but its real power lies in how it cleverly isolates those files from yo.
pytest vs unittest: Choose the Right Python Test Framework
unittest is Python's built-in testing framework, part of the standard library, while pytest is a popular third-party framework that offers a more flexib.
pytest Warnings: Filter and Assert Warning Messages
Pytest warnings are a surprisingly effective way to catch subtle bugs and enforce API stability, but they can also become a noisy distraction if not man.
pytest-xdist: Run Tests in Parallel Across CPUs
pytest-xdist is a plugin that lets you run your pytest test suite in parallel, not just across multiple CPU cores on a single machine, but even across m.
pytest + Allure: Generate Rich HTML Test Reports
Pytest, the ubiquitous Python testing framework, can generate reports that look like they were designed by a marketing team.
pytest API Integration Testing: Test HTTP Endpoints
Pytest can test HTTP endpoints by making actual HTTP requests to your running application, asserting the responses, and managing test state.
pytest asyncio: Test Async Python Code Correctly
The most surprising thing about testing asyncio code with pytest is that you don't actually need to await your tests yourself.
pytest autouse Fixtures: Apply Setup to Every Test
Autouse fixtures in pytest are the silent workhorses that can apply setup and teardown code to every test function without you explicitly requesting the.
pytest BDD: Write Tests in Given-When-Then Format
The most surprising thing about writing tests in a Given-When-Then format with pytest-bdd is that you're not actually writing tests in that format; you'.
pytest capfd: Capture stdout and stderr in Tests
pytest's capfd fixture lets you grab anything printed to standard output or standard error during your tests, which is crucial for verifying that your c.
pytest in GitHub Actions: Configure Test Automation
GitHub Actions is a bit like having a virtual machine that lives in GitHub, ready to run code whenever you push changes.
pytest Classes: Organize Tests Without unittest Bloat
pytest classes are a way to group related tests together, offering a more organized and less boilerplate-heavy alternative to Python's built-in unittest.
pytest CLI App Testing: Test Command-Line Applications
Testing command-line applications with pytest is surprisingly straightforward, but the real magic happens when you realize you can treat your CLI as a b.
pytest conftest.py: Share Fixtures Across Test Files
pytest conftest.py: Share Fixtures Across Test Files — conftest.py is your secret weapon for sharing fixtures across multiple test files in pytest. Imag...
pytest Contract Testing: Verify API Contracts with Pact
Pact is a consumer-driven contract testing framework that ensures your API clients and servers can communicate effectively without needing to run full i.
pytest Coverage: Measure Code Coverage with pytest-cov
pytest Coverage: Measure Code Coverage with pytest-cov — practical guide covering pytest setup, configuration, and troubleshooting with real-world examp...
pytest pdb: Debug Failing Tests Interactively
pytest pdb: Debug Failing Tests Interactively — practical guide covering pytest setup, configuration, and troubleshooting with real-world examples.
pytest Dependency Injection: Compose Fixtures Cleanly
pytest Dependency Injection: Compose Fixtures Cleanly — practical guide covering pytest setup, configuration, and troubleshooting with real-world examples.
pytest Django: Configure Database and Request Testing
When you're testing Django applications with pytest, you're not just testing isolated Python functions; you're often testing how your code interacts wit.
pytest Docker: Integration Tests with testcontainers
testcontainers-python is actually a wrapper around the Java testcontainers library, which is the core engine for managing container lifecycles and expos.
pytest Environment Variables: Configure Test Settings
pytest's ability to read environment variables for configuration is often overlooked, leading many to believe you must use pytest.
pytest FastAPI: Test Endpoints with TestClient
FastAPI's TestClient doesn't just mock HTTP requests; it actually runs your FastAPI application in memory, allowing for incredibly fast and realistic in.
pytest Fixtures: Complete Guide to Setup and Teardown
Pytest fixtures can do a lot more than just provide setup and teardown for your tests; they're actually the primary mechanism for managing any kind of s.
pytest Flask: Test Applications with Test Client
The most surprising thing about testing Flask apps with testclient is that you're not actually running your application in a real HTTP server process, b.
pytest Getting Started: Write and Run Tests in Python
pytest, the ubiquitous Python testing framework, isn't just about running tests; it's a powerful tool for understanding and shaping your code's behavior.