doc: expand first sentence on fixtures into a paragraph (#6742)

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changelog/6742.doc.rst Normal file
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Expand first sentence on fixtures into a paragraph.

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@ -10,13 +10,19 @@ pytest fixtures: explicit, modular, scalable
.. _`xUnit`: https://en.wikipedia.org/wiki/XUnit
.. _`purpose of test fixtures`: https://en.wikipedia.org/wiki/Test_fixture#Software
.. _`Software test fixtures`: https://en.wikipedia.org/wiki/Test_fixture#Software
.. _`Dependency injection`: https://en.wikipedia.org/wiki/Dependency_injection
The `purpose of test fixtures`_ is to provide a fixed baseline
upon which tests can reliably and repeatedly execute. pytest fixtures
offer dramatic improvements over the classic xUnit style of setup/teardown
functions:
`Software test fixtures`_ initialize test functions. They provide a
fixed baseline so that tests execute reliably and produce consistent,
repeatable, results. Initialization may setup services, state, or
other operating environments. These are accessed by test functions
through arguments; for each fixture used by a test function there is
typically a parameter (named after the fixture) in the test function's
definition.
pytest fixtures offer dramatic improvements over the classic xUnit
style of setup/teardown functions:
* fixtures have explicit names and are activated by declaring their use
from test functions, modules, classes or whole projects.