Implement changes for __repr__ tests

[rkbeatss]

Changes based on suggestions on this PR implemented and more test coverage added

[codecov]

Codecov Report

Merging #1560 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            master     #1560    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          227       232     +5     
  Lines         6810      6950   +140     
==========================================
+ Hits          6810      6950   +140     

Impacted Files	Coverage Δ
fastapi/params.py	100.00% <100.00%> (ø)
tests/test_params_repr.py	100.00% <100.00%> (ø)
fastapi/routing.py	100.00% <0.00%> (ø)
fastapi/applications.py	100.00% <0.00%> (ø)
fastapi/openapi/utils.py	100.00% <0.00%> (ø)
fastapi/dependencies/utils.py	100.00% <0.00%> (ø)
tests/test_dependency_class.py	100.00% <0.00%> (ø)
tests/test_deprecated_openapi_prefix.py	100.00% <0.00%> (ø)
...t_tutorial/test_behind_a_proxy/test_tutorial002.py	100.00% <0.00%> (ø)
...t_tutorial/test_behind_a_proxy/test_tutorial001.py	100.00% <0.00%> (ø)
... and 2 more

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[tiangolo]

LGTM! 🚀 🎉

Very good job with all this @rkbeatss and @victorphoenix3 👏 👏 🚀 🎉

Thanks for your contribution! ☕ 🍰

[tiangolo]

Very clever! I actually didn't know of these fixtures with params 🤓 ✔️