Better tests and small fixes

[erezsh]

No description provided.

[codecov]

Codecov Report

Merging #33 (50d6abf) into master (1aa35a2) will decrease coverage by 13.99%.
The diff coverage is 76.87%.

❗ Current head 50d6abf differs from pull request most recent head f070f6b. Consider uploading reports for the commit f070f6b to get more accurate results

@@             Coverage Diff             @@
##           master      #33       +/-   ##
===========================================
- Coverage   92.82%   78.84%   -13.99%     
===========================================
  Files           7       11        +4     
  Lines         502     1144      +642     
  Branches       94      262      +168     
===========================================
+ Hits          466      902      +436     
- Misses         23      182      +159     
- Partials       13       60       +47     

Flag	Coverage Δ
unittests	78.84% <76.87%> (-13.79%)	⬇️

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Impacted Files	Coverage Δ
setup.py	0.00% <ø> (ø)
runtype/datetime_parse.py	29.77% <29.77%> (ø)
runtype/base_types.py	75.66% <75.66%> (ø)
runtype/pytypes.py	80.22% <81.08%> (-8.98%)	⬇️
runtype/dispatch.py	94.48% <87.50%> (-1.64%)	⬇️
runtype/dataclass.py	91.18% <90.00%> (-7.12%)	⬇️
runtype/utils.py	93.75% <93.75%> (ø)
runtype/validation.py	98.24% <98.24%> (ø)
runtype/__init__.py	100.00% <100.00%> (ø)
runtype/typesystem.py	100.00% <100.00%> (ø)

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