TST: Make assert_extension_array_equal behavior consistent

[jschendel]

• closes TST: assert_extension_array_equal is inconsistent in how precision is handled #23709
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff

Doesn't seem like a whatsnew entry is needed for this, but can add one if need be.

This should also address #23605; I don't want to autoclose it, as I'd rather wait to confirm that the nightly build passes after this is merged.

[pep8speaks]

Hello @jschendel! Thanks for submitting the PR.

• There are no PEP8 issues in the file pandas/tests/util/test_testing.py !

• There are no PEP8 issues in the file pandas/util/testing.py !

[TomAugspurger]

Seems like a precision issue on the py2 test: https://travis-ci.org/pandas-dev/pandas/jobs/457327081#L2551

[codecov]

Codecov Report

Merging #23808 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master   #23808      +/-   ##
==========================================
+ Coverage   92.28%   92.28%   +<.01%     
==========================================
  Files         161      161              
  Lines       51457    51465       +8     
==========================================
+ Hits        47489    47497       +8     
  Misses       3968     3968

Flag	Coverage Δ
#multiple	90.68% <100%> (ø)	⬆️
#single	42.31% <100%> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/util/testing.py	86.09% <100%> (+0.05%)	⬆️
pandas/core/tools/timedeltas.py	98.03% <0%> (ø)	⬆️
pandas/core/resample.py	96.99% <0%> (ø)	⬆️
pandas/core/dtypes/cast.py	88.99% <0%> (+0.07%)	⬆️

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[TomAugspurger]

Merging later today.

[jorisvandenbossche]

@jschendel thanks!

[jorisvandenbossche]

Should #23605 also be closed?

[jschendel]

Should #23605 also be closed?

Yes, will close that issue manually. The latest pandas-wheels build was successful, which looks to include this PR based on the time at which it was started: https://travis-ci.org/MacPython/pandas-wheels/builds/457775113

[jreback]

yep looks like the 32 bit are finally fixed thanks!