Before:
  " Make sure the c.vim file is loaded first.
  call ale#c#FindProjectRoot(bufnr(''))

  Save g:ale_c_parse_compile_commands
  Save g:ale_c_parse_makefile
  Save g:__ale_c_project_filenames

  let g:original_project_filenames = g:__ale_c_project_filenames
  let g:executable_map = {}

  " Remove the .git/HEAD dir for C import paths for these tests.
  " The tests run inside of a git repo.
  let g:__ale_c_project_filenames = filter(
  \ copy(g:__ale_c_project_filenames),
  \ 'v:val isnot# ''.git/HEAD'''
  \)

  let g:ale_c_parse_compile_commands = 0
  let g:ale_c_parse_makefile = 0

  runtime autoload/ale/engine.vim

  function! ale#engine#IsExecutable(buffer, executable) abort
    return has_key(g:executable_map, a:executable)
  endfunction

After:
  Restore

  unlet! g:original_project_filenames
  unlet! g:executable_map

  runtime autoload/ale/engine.vim

  call ale#assert#TearDownLinterTest()

Execute(The C cc linter should include 'include' directories for projects with a Makefile):
  call ale#assert#SetUpLinterTest('c', 'cc')
  call ale#test#SetFilename('../test_c_projects/makefile_project/subdir/file.c')
  let g:ale_c_cc_options = ''

  AssertLinter 'gcc',
  \ ale#Escape('gcc')
  \   . ' -S -x c -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/makefile_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/makefile_project/include'))
  \   . ' -'

Execute(The C cc linter should include 'include' directories for projects with a configure file):
  call ale#assert#SetUpLinterTest('c', 'cc')
  call ale#test#SetFilename('../test_c_projects/configure_project/subdir/file.c')
  let g:ale_c_cc_options = ''

  AssertLinter 'gcc',
  \ ale#Escape('gcc')
  \   . ' -S -x c -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/configure_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/configure_project/include'))
  \   . ' -'

Execute(The C cc linter should include root directories for projects with .h files in them):
  call ale#assert#SetUpLinterTest('c', 'cc')
  call ale#test#SetFilename('../test_c_projects/h_file_project/subdir/file.c')
  let g:ale_c_cc_options = ''

  AssertLinter 'gcc',
  \ ale#Escape('gcc')
  \   . ' -S -x c -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/h_file_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/h_file_project'))
  \   . ' -'

Execute(The C cc linter should include root directories for projects with .hpp files in them):
  call ale#assert#SetUpLinterTest('c', 'cc')
  call ale#test#SetFilename('../test_c_projects/hpp_file_project/subdir/file.c')
  let g:ale_c_cc_options = ''

  AssertLinter 'gcc',
  \ ale#Escape('gcc')
  \   . ' -S -x c -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/hpp_file_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/hpp_file_project'))
  \   . ' -'

Execute(The C ClangTidy handler should include 'include' directories for projects with a Makefile):
  call ale#assert#SetUpLinterTest('c', 'clangtidy')
  call ale#test#SetFilename('../test_c_projects/makefile_project/subdir/file.cpp')
  let g:ale_c_clangtidy_options = ''

  AssertLinter 'clang-tidy',
  \ ale#Escape('clang-tidy')
  \ . ' %s '
  \ . '-- -I' . ale#Escape(ale#path#Simplify(g:dir . '/../test_c_projects/makefile_project/include'))

Execute(The C++ cc linter should include 'include' directories for projects with a Makefile):
  call ale#assert#SetUpLinterTest('cpp', 'cc')
  call ale#test#SetFilename('../test_c_projects/makefile_project/subdir/file.cpp')
  let g:ale_cpp_cc_options = ''

  AssertLinter 'gcc',
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/makefile_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/makefile_project/include'))
  \   . ' -'

Execute(The C++ cc linter should include 'include' directories for projects with a configure file):
  call ale#assert#SetUpLinterTest('cpp', 'cc')
  call ale#test#SetFilename('../test_c_projects/configure_project/subdir/file.cpp')
  let g:ale_cpp_cc_options = ''

  AssertLinter 'gcc',
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/configure_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/configure_project/include'))
  \   . ' -'

Execute(The C++ cc linter should include root directories for projects with .h files in them):
  call ale#assert#SetUpLinterTest('cpp', 'cc')
  call ale#test#SetFilename('../test_c_projects/h_file_project/subdir/file.cpp')
  let g:ale_cpp_cc_options = ''

  AssertLinter 'gcc',
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/h_file_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/h_file_project'))
  \   . ' -'

Execute(The C++ cc linter should include root directories for projects with .hpp files in them):
  call ale#assert#SetUpLinterTest('cpp', 'cc')
  call ale#test#SetFilename('../test_c_projects/hpp_file_project/subdir/file.cpp')
  let g:ale_cpp_cc_options = ''

  AssertLinter 'gcc',
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -o ' . (has('win32') ? 'nul': '/dev/null')
  \   . ' -iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/hpp_file_project/subdir'))
  \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/../test_c_projects/hpp_file_project'))
  \   . ' -'

Execute(The C++ ClangTidy handler should include json folders for projects with suitable build directory in them):
  call ale#assert#SetUpLinterTest('cpp', 'clangtidy')
  call ale#test#SetFilename('../test_c_projects/json_project/subdir/file.cpp')

  AssertLinter 'clang-tidy',
  \ ale#Escape('clang-tidy')
  \   . ' %s '
  \   . '-p ' . ale#Escape(ale#path#Simplify(g:dir . '/../test_c_projects/json_project/build'))

Execute(The C++ ClangTidy handler should include 'include' directories for projects with a Makefile):
  call ale#assert#SetUpLinterTest('cpp', 'clangtidy')
  call ale#test#SetFilename('../test_c_projects/makefile_project/subdir/file.cpp')
  let g:ale_cpp_clangtidy_options = ''

  AssertLinter 'clang-tidy',
  \ ale#Escape('clang-tidy')
  \ . ' %s '
  \ . '-- -I' . ale#Escape(ale#path#Simplify(g:dir . '/../test_c_projects/makefile_project/include'))