[py] mapped all error codes in errorhandler.py to corresponding exception object.

[sandeepsuryaprasad]

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Description

Mapped all error codes in ErrorCode object in remote/errorhandler.py to corresponding exception object by creating a new object ExceptionMapping.

Motivation and Context

• In ErrorHandler object in remote/errorhandler.py, there is a giant conditional statement which actually assigns an exception object to a variable exception_class depending on status.

• All error codes and its corresponding values are maintained in ErrorCode object. Through multiple conditional statements, an exception object is being assigned to variable exception_class depending on status in response.

• I have mapped all error codes in ErrorCode object and its corresponding exception object in a separate ExceptionClass object, so that multiple if-elif-else block is avoided in ErrorHandler object.

• Added a new logic to assign exception_class variable by replacing conditional statements. Now the code in ErrorHandler object is reduced to a great extent.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• [] My change requires a change to the documentation.
• [] I have updated the documentation accordingly.
• [] I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-commenter]

Codecov Report

Patch coverage: 92.50% and project coverage change: +0.32 🎉

Comparison is base (7cfd137) 56.56% compared to head (a9e95b7) 56.89%.

❗ Current head a9e95b7 differs from pull request most recent head bfb6704. Consider uploading reports for the commit bfb6704 to get more accurate results

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Additional details and impacted files

@@            Coverage Diff             @@
##            trunk   #12190      +/-   ##
==========================================
+ Coverage   56.56%   56.89%   +0.32%     
==========================================
  Files          86       86              
  Lines        5450     5428      -22     
  Branches      223      226       +3     
==========================================
+ Hits         3083     3088       +5     
+ Misses       2144     2114      -30     
- Partials      223      226       +3     

Impacted Files	Coverage Δ
py/selenium/webdriver/remote/errorhandler.py	71.67% <92.50%> (+10.65%)	⬆️

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[diemol]

Thank you, @sandeepsuryaprasad!