add check for array_equal and np.testing

[MarcoGorelli]

No description provided.

[codecov]

Codecov Report

Merging #27 (e8539d2) into main (862fbea) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #27   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           51        53    +2     
  Lines          685       711   +26     
  Branches        86        89    +3     
=========================================
+ Hits           685       711   +26     

Impacted Files	Coverage Δ
pandas_dev_flaker/_plugins_tree/numpy_testing.py	100.00% <100.00%> (ø)
tests/numpy_testing_test.py	100.00% <100.00%> (ø)

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