Add Lean Python unit tests CI workflow#142
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jhonabreul merged 4 commits intoJul 16, 2026
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Runs Lean's Python/Pandas unit test suites plus every other Lean unit test class that exercises Python code against the freshly built Python.Runtime.dll. Test classes are selected by scanning Lean's test sources for Python interop usage and passing the resulting FullyQualifiedName filter through a runsettings file. Regression suites are excluded since Python regression algorithms are already covered by the Lean Python Regression Tests workflow.
Follow the pattern of Lean's own unit test CI job and this repo's main workflow: run directly in a quantconnect/lean:foundation container on a self-hosted runner instead of manually managing a docker container on a GitHub-hosted runner.
Container jobs default to sh, which does not support the here-string used when writing the runsettings file.
Follow the pattern of Lean's own regression tests CI job: run directly in a quantconnect/lean:foundation container on a self-hosted runner instead of manually managing a docker container on a GitHub-hosted runner.
Martin-Molinero
approved these changes
Jul 16, 2026
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Description
Adds a new CI workflow (
Lean Python Unit Tests) that validates Python.Runtime.dll changes against Lean's Python unit tests:QuantConnect.Tests.Python:PandasConverterTests,PythonPackagesTests, etc.).Language.Pythontest cases, exception interpreter tests, wrapper model tests, ...).How it works
Mirrors the existing
Lean Python Regression Testsworkflow: builds this repo'sPython.Runtime.dllinsidequantconnect/lean:foundation, builds Lean, and drops the freshly built DLL over Lean's test output.Test selection is generated at run time: Lean's test sources are scanned for Python interop usage (
Py.GIL,PythonEngine,PyObject,Language.Python, ...) and each matching file's classes becomeFullyQualifiedName~<Namespace>.<Class>entries in aTestCaseFilter(currently ~368 class filters), passed via a runsettings file since the expression is too long for a command line. This keeps the selection in sync with Lean automatically as tests are added or moved.Exclusions mirror Lean's own unit test CI (
TestCategory!=TravisExclude,TestCategory!=ResearchRegressionTests) plusTestCategory!=RegressionTests, since Python regression algorithms are already covered by the Lean Python Regression Tests workflow.