[Closes #258] Add code coverage reporting to codecov

[rahulpuroht]

Fixes

Checklist

• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the [Contribution Guide] and my PR follows them.
• I updated my branch with the master branch.
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation about the functionality in the appropriate .md file
• I have added in line documentation to the code I modified

Short description of what this PR does:

• This PR add code coverage reporting and integrates it with codecov

If you have questions, please send an email to Sendgrid, or file a Github Issue in this repository.

[SendGridDX]

All committers have signed the CLA.

[thinkingserious]

@rahulpuroht

We can’t merge your PR without the CLA being signed.

[ ] Sign the CLA before November 3rd
[ ] Tag @mbernier and @thinkingserious to let us know it is signed

Then we will comment with a link to get your shirt!

[rahulpuroht]

Hello,

@mbernier @thinkingserious

Signed the CLA for this Pull Request.Please send a link to get my shirt :)

[thinkingserious]

Thanks @rahulpuroht!

Here is the link, enjoy!

[mbernier]

There is something happening in travis that I believe is related to this change, can you please look into this?

/home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- test_helper (LoadError)
	from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /home/travis/build/sendgrid/sendgrid-ruby/test/sendgrid/test_sendgrid-ruby.rb:2:in `<top (required)>'
	from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake-12.0.0/lib/rake/rake_test_loader.rb:15:in `block in <main>'
	from /home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake-12.0.0/lib/rake/rake_test_loader.rb:4:in `select'
	from /home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake-12.0.0/lib/rake/rake_test_loader.rb:4:in `<main>'
rake aborted!
Command failed with status (1): [ruby -w -I"lib:test" -I"/home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake-12.0.0/lib" "/home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake-12.0.0/lib/rake/rake_test_loader.rb" "test/sendgrid/test_helper.rb" "test/sendgrid/test_sendgrid-ruby.rb" "test/sendgrid/helpers/mail/test_category.rb" "test/sendgrid/helpers/mail/test_email.rb" "test/sendgrid/helpers/mail/test_mail.rb" "test/sendgrid/helpers/mail/test_personalizations.rb" ]
/home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake-12.0.0/exe/rake:27:in `<top (required)>'
/home/travis/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `eval'
/home/travis/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => test
(See full trace by running task with --trace)

[clee]

I had to move the code from test_helper.rb to test_sendgrid-ruby.rb to get this to work, but it didn't break any tests when I did. @rahulpuroht, can you please resubmit with the code moved over?

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@c0ac8b2). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #261   +/-   ##
=========================================
  Coverage          ?   19.75%           
=========================================
  Files             ?        4           
  Lines             ?      243           
  Branches          ?        0           
=========================================
  Hits              ?       48           
  Misses            ?      195           
  Partials          ?        0

---

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[rahulpuroht]

@clee Hey can you please look into it and suggest why it still showing this errors in Travis.

[thinkingserious]

Hi @rahulpuroht,

Those failures are not related to your work. I will still be able to merge this without those tests passing.

Thank you!

With Best Regards,

Elmer

[benpatterson]

@thinkingserious this got the hacktoberfest label put on it recently, but it sounded like this was going to be merged soon. Do you guys still need help setting up CodeCov?

[childish-sambino]

Duplicates #368