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

  Save g:ale_c_gcc_options
  Save g:ale_c_clang_options
  Save g:ale_cpp_gcc_options
  Save g:ale_cpp_clang_options
  Save g:__ale_c_project_filenames

  let g:original_project_filenames = g:__ale_c_project_filenames

  " 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'''
  \)

  call ale#test#SetDirectory('/testplugin/test')

  let g:ale_c_gcc_options = ''
  let g:ale_c_clang_options = ''
  let g:ale_cpp_gcc_options = ''
  let g:ale_cpp_clang_options = ''

After:
  Restore

  unlet! g:original_project_filenames

  call ale#test#RestoreDirectory()
  call ale#linter#Reset()

Execute(The C GCC handler should include 'include' directories for projects with a Makefile):
  runtime! ale_linters/c/gcc.vim

  call ale#test#SetFilename('test_c_projects/makefile_project/subdir/file.c')

  AssertEqual
  \ ale#Escape('gcc')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#gcc#GetCommand(bufnr(''), [])

Execute(The C GCC handler should include 'include' directories for projects with a configure file):
  runtime! ale_linters/c/gcc.vim

  call ale#test#SetFilename('test_c_projects/configure_project/subdir/file.c')

  AssertEqual
  \ ale#Escape('gcc')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#gcc#GetCommand(bufnr(''), [])

Execute(The C GCC handler should include root directories for projects with .h files in them):
  runtime! ale_linters/c/gcc.vim

  call ale#test#SetFilename('test_c_projects/h_file_project/subdir/file.c')

  AssertEqual
  \ ale#Escape('gcc')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#gcc#GetCommand(bufnr(''), [])

Execute(The C GCC handler should include root directories for projects with .hpp files in them):
  runtime! ale_linters/c/gcc.vim

  call ale#test#SetFilename('test_c_projects/hpp_file_project/subdir/file.c')

  AssertEqual
  \ ale#Escape('gcc')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#gcc#GetCommand(bufnr(''), [])

Execute(The C Clang handler should include 'include' directories for projects with a Makefile):
  runtime! ale_linters/c/clang.vim

  call ale#test#SetFilename('test_c_projects/makefile_project/subdir/file.c')

  AssertEqual
  \   ale#Escape('clang')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#clang#GetCommand(bufnr(''), [])

Execute(The C Clang handler should include 'include' directories for projects with a configure file):
  runtime! ale_linters/c/clang.vim

  call ale#test#SetFilename('test_c_projects/h_file_project/subdir/file.c')

  AssertEqual
  \   ale#Escape('clang')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#clang#GetCommand(bufnr(''), [])

Execute(The C Clang handler should include root directories for projects with .h files in them):
  runtime! ale_linters/c/clang.vim

  call ale#test#SetFilename('test_c_projects/h_file_project/subdir/file.c')

  AssertEqual
  \   ale#Escape('clang')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#clang#GetCommand(bufnr(''), [])

Execute(The C Clang handler should include root directories for projects with .hpp files in them):
  runtime! ale_linters/c/clang.vim

  call ale#test#SetFilename('test_c_projects/hpp_file_project/subdir/file.c')

  AssertEqual
  \   ale#Escape('clang')
  \   . ' -S -x c -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#c#clang#GetCommand(bufnr(''), [])

Execute(The C++ GCC handler should include 'include' directories for projects with a Makefile):
  runtime! ale_linters/cpp/gcc.vim

  call ale#test#SetFilename('test_c_projects/makefile_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#gcc#GetCommand(bufnr(''), [])

Execute(The C++ GCC handler should include 'include' directories for projects with a configure file):
  runtime! ale_linters/cpp/gcc.vim

  call ale#test#SetFilename('test_c_projects/configure_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#gcc#GetCommand(bufnr(''), [])

Execute(The C++ GCC handler should include root directories for projects with .h files in them):
  runtime! ale_linters/cpp/gcc.vim

  call ale#test#SetFilename('test_c_projects/h_file_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#gcc#GetCommand(bufnr(''), [])

Execute(The C++ GCC handler should include root directories for projects with .hpp files in them):
  runtime! ale_linters/cpp/gcc.vim

  call ale#test#SetFilename('test_c_projects/hpp_file_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('gcc')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#gcc#GetCommand(bufnr(''), [])

Execute(The C++ Clang handler should include 'include' directories for projects with a Makefile):
  runtime! ale_linters/cpp/clang.vim

  call ale#test#SetFilename('test_c_projects/makefile_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('clang++')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#clang#GetCommand(bufnr(''), [])

Execute(The C++ Clang handler should include 'include' directories for projects with a configure file):
  runtime! ale_linters/cpp/clang.vim

  call ale#test#SetFilename('test_c_projects/configure_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('clang++')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#clang#GetCommand(bufnr(''), [])

Execute(The C++ Clang handler should include root directories for projects with .h files in them):
  runtime! ale_linters/cpp/clang.vim

  call ale#test#SetFilename('test_c_projects/h_file_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('clang++')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#clang#GetCommand(bufnr(''), [])

Execute(The C++ Clang handler should include root directories for projects with .hpp files in them):
  runtime! ale_linters/cpp/clang.vim

  call ale#test#SetFilename('test_c_projects/hpp_file_project/subdir/file.cpp')

  AssertEqual
  \   ale#Escape('clang++')
  \   . ' -S -x c++ -fsyntax-only '
  \   . '-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')) . ' '
  \   . ' -'
  \ , ale_linters#cpp#clang#GetCommand(bufnr(''), [])

Execute(The C++ Clang handler shoud use the include directory based on the .git location):
  " Don't run this test on Windows. I can't be bothered fixing it.
  if !has('win32')
    runtime! ale_linters/cpp/clang.vim

    " Restore the .git/HEAD check for just this test.
    let g:__ale_c_project_filenames = g:original_project_filenames

    call ale#test#SetFilename('test_c_projects/git_and_nested_makefiles/src/file.cpp')

    AssertEqual
    \   ale#Escape('clang++')
    \   . ' -S -x c++ -fsyntax-only '
    \   . '-iquote ' . ale#Escape(ale#path#Simplify(g:dir .  '/test_c_projects/git_and_nested_makefiles/src')) . ' '
    \   . ' -I' . ale#Escape(ale#path#Simplify(g:dir .  '/test_c_projects/git_and_nested_makefiles/include')) . ' '
    \   . ' -'
    \ , ale_linters#cpp#clang#GetCommand(bufnr(''), [])
  endif

Execute(The C++ ClangTidy handler should include json folders for projects with suitable build directory in them):
  runtime! ale_linters/cpp/clangtidy.vim

  call ale#test#SetFilename('test_c_projects/json_project/subdir/file.cpp')

  AssertEqual
  \ ale#Escape('clang-tidy')
  \   . ' -checks=' . ale#Escape('*') . ' %s '
  \   . '-p ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/json_project/build'))
  \ , ale_linters#cpp#clangtidy#GetCommand(bufnr(''))