Address warning: mismatched indentations at 'when' with 'case'

[yahonda]

This pull request addresses warning: mismatched indentations at 'when' with 'case'and warning: mismatched indentations at 'else' with 'case' generated by ruby 2.6.0dev (2018-04-07 trunk 63108) [x86_64-linux]

$ bundle exec rake test
/home/yahonda/.rbenv/versions/2.6.0-dev/bin/ruby -w -I"lib:test" -I"/home/yahonda/.rbenv/versions/2.6.0-dev/lib/ruby/gems/2.6.0/gems/rake-12.0.0/lib" "/home/yahonda/.rbenv/versions/2.6.0-dev/lib/ruby/gems/2.6.0/gems/rake-12.0.0/lib/rake/rake_test_loader.rb" "test/dom_assertions_test.rb" "test/selector_assertions_test.rb"
... snip ...
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:90: warning: mismatched indentations at 'when' with 'case' at 89
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:92: warning: mismatched indentations at 'when' with 'case' at 89
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:94: warning: mismatched indentations at 'when' with 'case' at 89
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:96: warning: mismatched indentations at 'when' with 'case' at 89
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:99: warning: mismatched indentations at 'when' with 'case' at 89
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:101: warning: mismatched indentations at 'when' with 'case' at 89
/home/yahonda/git/rails-dom-testing/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:103: warning: mismatched indentations at 'else' with 'case' at 89
Run options: --seed 23218
... snip ...

How to address these warnings:

These warnings can be easily addressed by using RuboCop. I do not mean to configure it permantently then removed .rubocop.yml and .rubocop_todo.yml at the end of these steps.

• Execute RuboCop with --auto-gen-config option

$ rubocop --auto-gen-config

• Edit .rubocop_todo.yml to replace Exclude with Include under Layout/CaseIndentation:

 37 Layout/CaseIndentation:
 38   Include:
 39     - 'lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb'
 40

• Execute RuboCop --auto-correct option

$ rubocop --auto-correct

• Remove .rubocop.yml and .rubocop_todo.yml file

$ rm .rubocop.yml .rubocop_todo.yml

[rails-bot]

Thanks for the pull request, and welcome! The Rails team is excited to review your changes, and you should hear from @kaspth (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

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