pytest-pystack

A pytest plug-in for easy integration of PyStack in your test suite.

It can be used to automatically dump the stack trace of a hanging test in your suite.

See PyStack for further information about the tool.

Installation

To install the PyStack pytest plug-in, just run the following command in your venv:

python -m pip install pytest-pystack

Quick Start

After you have installed the pytest plug-in, you can have PyStack monitor your test suite and output a stack trace if a test takes more than 5 seconds, simply by running pytest with argument --pystack-threshold=5.

Configuration

The PyStack plug-in can be configured via the command line with the following options:

• --pystack-threshold: Enables the plug-in and monitors all tests, generating a stack trace if they take longer than the specified threshold. Note, this neither stops nor fails the test case after the specified threshold.
• --pystack-output-file: Appends PyStack output to a file.
• --pystack-path: Path to the pystack executable.
• --pystack-args: Additional args to pass to pystack remote <pid>, like --native or --native-all.

And through any pytest config file, see an example of pyproject.toml:

[tool.pytest.ini_options]
pystack_threshold=60
pystack_path="custom-version-of-pystack"
pystack_output_file="./pystack.log"
pystack_args="--native"