Before:
  runtime ale_linters/erlang/elvis.vim

After:
  call ale#linter#Reset()

Execute(Warning messages should be handled):
  AssertEqual
  \ [
  \   {
  \     'lnum': 11,
  \     'text': "Replace the 'if' expression on line 11 with a 'case' expression or function clauses.",
  \     'type': 'W',
  \   },
  \   {
  \     'lnum': 20,
  \     'text': 'Remove the debug call to io:format/1 on line 20.',
  \     'type': 'W',
  \   },
  \ ],
  \ ale_linters#erlang#elvis#Handle(bufnr(''), [
  \   "src/foo.erl:11:no_if_expression:Replace the 'if' expression on line 11 with a 'case' expression or function clauses.",
  \   'src/foo.erl:20:no_debug_call:Remove the debug call to io:format/1 on line 20.',
  \ ])

Execute(Line length message shouldn't contain the line itself):
  AssertEqual
  \ [
  \   {
  \     'lnum': 24,
  \     'text': 'Line 24 is too long.',
  \     'type': 'W',
  \   },
  \ ],
  \ ale_linters#erlang#elvis#Handle(bufnr(''), [
  \   'src/foo.erl:24:line_length:Line 24 is too long:     io:format("Look ma, too long!"),.',
  \ ])