Before:
  call ale#assert#SetUpLinterTest('c3', 'c3lsp')

After:
  call ale#assert#TearDownLinterTest()

Execute(The default c3lsp settings should be correct):
  AssertLinter 'c3lsp', ale#Escape('c3lsp')
  AssertLSPConfig {}

Execute(c3lsp should be configurable):
  let b:ale_c3_c3lsp_executable = 'billy'
  let b:ale_c3_c3lsp_init_options = {'x': 'y'}

  AssertLinter 'billy', ale#Escape('billy')
  AssertLSPConfig {'x': 'y'}