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PyTest: Global variables

How To

You can instantiate global variables in PyTest by using the pytest_configure() function in conftest.py.

WARNING: This is a stopgap measure implemented by PyTest.

Instantiate global variables

1. Make sure a conftest.py file exists and is used by the called tests
2. In the conftest.py file, create the following definition:

   def pytest_configure():
       """
       Set up pytest global variables.
       """
       pytest.GLOBAL_TEST_VARIABLE = "test global variable"
   

   This will instantiate the global variable GLOBAL_TEST_VARIABLE, usable for all tests which have access to this conftest.py file.

Use global variables

After instantiating all required global variables in conftest.py, you can use them by referencing them with pytest.<NAME_OF_GLOBVAR>, i.e.:

import pytest

def test_should_use_global_variable():
    assert pytest.GLOBAL_TEST_VARIABLE == "test global variable"

References

• PyTest : Namespace (deprecated)