Before:
  call ale#assert#SetUpLinterTest('vhdl', 'ghdl')

After:
  unlet! b:command_tail

  call ale#assert#TearDownLinterTest()

Execute(The executable should be configurable):
  AssertLinter 'ghdl', ale#Escape('ghdl') . ' -s  --std=08 %t'

  let b:ale_vhdl_ghdl_executable = 'foobar'

  AssertLinter 'foobar', ale#Escape('foobar') . ' -s  --std=08 %t'

Execute(The options should be configurable):
  let b:ale_vhdl_ghdl_options = '--something'

  AssertLinter 'ghdl', ale#Escape('ghdl') . ' -s  --something %t'