Before:
  runtime ale_linters/ruby/rubocop.vim

After:
  call ale#linter#Reset()

Execute(The rubocop handler should parse lines correctly):
  AssertEqual
  \ [
  \   {
  \     'lnum': 83,
  \     'col': 29,
  \     'end_col': 35,
  \     'text': 'Prefer single-quoted strings...',
  \     'code': 'Style/SomeCop',
  \     'type': 'W',
  \   },
  \   {
  \     'lnum': 12,
  \     'col': 2,
  \     'end_col': 2,
  \     'text': 'Some error',
  \     'code': 'Style/SomeOtherCop',
  \     'type': 'E',
  \   },
  \   {
  \     'lnum': 10,
  \     'col': 5,
  \     'end_col': 12,
  \     'text': 'Regular warning',
  \     'code': 'Style/WarningCop',
  \     'type': 'W',
  \   },
  \   {
  \     'lnum': 11,
  \     'col': 1,
  \     'end_col': 1,
  \     'text': 'Another error',
  \     'code': 'Style/SpaceBeforeBlockBraces',
  \     'type': 'E',
  \   },
  \ ],
  \ ale#ruby#HandleRubocopOutput(347, [
  \     '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[{"path":"my_great_file.rb","offenses":[{"severity":"convention","message":"Prefer single-quoted strings...","cop_name":"Style/SomeCop","corrected":false,"location":{"line":83,"column":29,"length":7}},{"severity":"fatal","message":"Some error","cop_name":"Style/SomeOtherCop","corrected":false,"location":{"line":12,"column":2,"length":1}},{"severity":"warning","message":"Regular warning","cop_name":"Style/WarningCop","corrected":false,"location":{"line":10,"column":5,"length":8}},{"severity":"error","message":"Another error","cop_name":"Style/SpaceBeforeBlockBraces","corrected":false,"location":{"line":11,"column":1,"length":1}}]}],"summary":{"offense_count":4,"target_file_count":1,"inspected_file_count":1}}'
  \ ])

Execute(The rubocop handler should handle when files are checked and no offenses are found):
  AssertEqual
  \ [],
  \ ale#ruby#HandleRubocopOutput(347, [
  \     '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[{"path":"my_great_file.rb","offenses":[]}],"summary":{"offense_count":0,"target_file_count":1,"inspected_file_count":1}}'
  \ ])

Execute(The rubocop handler should handle when no files are checked):
  AssertEqual
  \ [],
  \ ale#ruby#HandleRubocopOutput(347, [
  \     '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[],"summary":{"offense_count":0,"target_file_count":0,"inspected_file_count":0}}'
  \ ])

Execute(The rubocop handler should handle empty output):
  AssertEqual [], ale#ruby#HandleRubocopOutput(347, ['{}'])
  AssertEqual [], ale#ruby#HandleRubocopOutput(347, [])