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autotest

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GDAL test suite

How to run tests

  1. You need to install pytest to run the test suite. This should do it:
cd autotest
pip install -r ./requirements.txt
  1. Then, run tests with:
pytest
  1. Some quick usage tips:
# get more verbose output; don't capture stdout/stdin
pytest -vvs

# run all the gcore tests
pytest gcore/

# run a particular module only
pytest gcore/basic_test.py

# run a particular test case in a module
pytest gcore/basic_test.py::test_basic_test_1

Full documentation of pytest at https://docs.pytest.org/en/latest/

GDAL's tests are not independent

GDAL's test functions are not currently independent of each other. In particular, running individual test functions from a given module may not work. Most tests were originally written with the assumption that entire modules will be run at once.

Practically, this means that you should avoid using:

  • pytest's --last-failed / --lf option (since it runs only failed tests, not the whole module)
  • test specifiers that run individual tests (e.g. pytest gcore/basic_test.py::test_basic_test_1 )
  • the xunit plugin to run tests in parallel, unless you also use --dist=loadfile. (This may have other issues; untested)

This will hopefully be addressed in the future. When writing new tests, please try to make them independent of each other.

Notes about availability of GDAL sample and test data

The GDAL Team makes every effort to assure that all sample data files available from GDAL download server (http://download.osgeo.org/gdal/data/) and test data files used in GDAL Autotest package (https://github.com/OSGeo/gdal/tree/master/autotest) are available as public and freely redistributable geodata.

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http://gdal.org/