[GitHub] [singa] moazreyad commented on issue #796: codecov/project fail

[GitBox <gi...@apache.org>]

moazreyad commented on issue #796:
URL: https://github.com/apache/singa/issues/796#issuecomment-692659125


   There is a problem in this PR because it [installs singa in python 3.6 ](https://github.com/nudles/singa/blob/dev/.github/workflows/conda.yaml#L64) and [executes the test cases from python3.7/site-packages](https://github.com/nudles/singa/blob/dev/.github/workflows/conda.yaml#L66) folder which does not work. Please fix this different python versions problem.
   
   Note also that the project coverage threshold can be set in [.codecov.yml](https://github.com/apache/singa/blob/dev/.codecov.yml) like [this](https://docs.codecov.io/docs/commit-status#project-status):
   
   ```
   coverage:
     status:
       project:
         default:
           # basic
           target: auto
           threshold: 5%
   ```
   The value of threshold can be chosen by the development team based on the quality needs. In the best case, every PR should not reduce the coverage because this means it either added code without test case or it removed (or disabled) the test cases for existing code. However, if the team think this is too strict requirement, we may choose the threshold to 5% or even more. But this means that a PR can be allowed to pass even if it reduces the code coverage too much. 
   
   The PR #795 reduces the coverage by 4.97%, so setting the threshold to 5% should make it pass. But this is not recommended solution. We can use it only if the team thinks it is too strict to keep the coverage change always zero or positive. In this case, we may allow threshold of 1% or 2% to pass. But 5% seems high to me and it means there is a lot of code that was not tested and there is a problem. And thanks to the strict code coverage, we found the different python versions problem. Without the strict coverage check, may be this problem will be hidden and will cause other problems later.


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