TST: Fixturize series/test_asof.py

[Anjali2019]

This is in reference to issue #22550

[pep8speaks]

Hello @Anjali2019! Thanks for submitting the PR.

• There are no PEP8 issues in the file pandas/tests/series/test_analytics.py !

• There are no PEP8 issues in the file pandas/tests/series/test_api.py !

• There are no PEP8 issues in the file pandas/tests/series/test_apply.py !

• There are no PEP8 issues in the file pandas/tests/series/test_arithmetic.py !

• There are no PEP8 issues in the file pandas/tests/series/test_asof.py !

• There are no PEP8 issues in the file pandas/tests/series/test_validate.py !

[codecov]

Codecov Report

Merging #22772 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #22772      +/-   ##
==========================================
+ Coverage   92.17%   92.18%   +<.01%     
==========================================
  Files         169      169              
  Lines       50769    50810      +41     
==========================================
+ Hits        46798    46839      +41     
  Misses       3971     3971

Flag	Coverage Δ
#multiple	90.6% <ø> (ø)	⬆️
#single	42.37% <ø> (+0.05%)	⬆️

Impacted Files	Coverage Δ
pandas/core/dtypes/base.py	100% <0%> (ø)	⬆️
pandas/core/generic.py	96.67% <0%> (ø)	⬆️
pandas/util/testing.py	86.03% <0%> (ø)	⬆️
pandas/core/frame.py	97.2% <0%> (ø)	⬆️
pandas/core/indexes/multi.py	95.45% <0%> (ø)	⬆️
pandas/io/formats/excel.py	97.4% <0%> (ø)	⬆️
pandas/core/arrays/categorical.py	95.75% <0%> (+0.01%)	⬆️
pandas/core/base.py	97.61% <0%> (+0.01%)	⬆️
pandas/core/arrays/datetimelike.py	95.53% <0%> (+0.02%)	⬆️
pandas/core/dtypes/dtypes.py	96.11% <0%> (+0.03%)	⬆️
... and 4 more

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[jreback]

thanks @Anjali2019