Before: call ale#assert#SetUpLinterTest('cuda', 'nvcc') After: call ale#assert#TearDownLinterTest() Execute(The executable should be configurable): AssertLinter 'nvcc', \ ale#Escape('nvcc') . ' -cuda -std=c++11 %s -o ' . g:ale#util#nul_file let b:ale_cuda_nvcc_executable = 'foobar' AssertLinter 'foobar', \ ale#Escape('foobar') . ' -cuda -std=c++11 %s -o ' . g:ale#util#nul_file