pytest plugin for testing Revit API code via RevitDevTool Named Pipe bridge. Tests run inside a live Revit process — write standard pytest, execute remotely.

pip install revitdevtool_pytest

Recommended package name for manifests and package managers such as Pixi:

revitdevtool_pytest

pip normalizes package names, so the following forms are equivalent when installing from PyPI:

pip install revitdevtool_pytest
pip install revitdevtool-pytest
pip install RevitDevTool.PyTest

The Python import/module name used by the package is:

import revitdevtool_pytest

• Windows (Named Pipes)
• Revit with RevitDevTool add-in installed

def test_revit_version():
    app = __revit__.Application
    assert "2025" in app.VersionName

# Auto-detect running Revit 2025
pytest --revit-version=2025 -v

# Auto-launch Revit 2025 if not running
pytest --revit-launch --revit-version=2025 -v

1. pytest discovers tests locally as usual
2. The plugin intercepts test execution via pytest_pyfunc_call
3. Test source code is serialized and sent over Named Pipe to Revit
4. RevitDevTool add-in executes the test inside Revit's Python (pythonnet) environment
5. Results are mapped back to pytest pass/fail/skip

Add to .vscode/settings.json:

{
    "python.testing.pytestEnabled": true,
    "python.testing.pytestArgs": [
        "--revit-launch",
        "--revit-version=2025",
        "tests"
    ]
}

MIT