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In the process of penning #150, I noticed that when capturing the test image to an io.Bytes
in-memory buffer:
pytest-mpl/pytest_mpl/plugin.py
Lines 419 to 421 in e387618
That the format
kwarg to savefig
isn't used.
Would you be adverse to defaulting to format='png'
, particularly when writing to a buffer, as (from what I understand) matplotlib
will default to the rcParams
to select the file-format to save to the buffer for the image, and this could be a source confusion/issues for hashing repeatability for developers when testing.
i.e., what I'm proposing is that a format='png'
is injected into the savefig_kwargs
, iff not specified by the caller as a kwarg option in the marker decorator.
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