Before: call ale#assert#SetUpLinterTest('chef', 'cookstyle') After: call ale#assert#TearDownLinterTest() Execute(The default command should be correct): AssertLinter 'cookstyle', ale#Escape('cookstyle') . ' --force-exclusion --format json --stdin %s' Execute(The executable path should be configurable): let b:ale_chef_cookstyle_executable = 'foobar' AssertLinter 'foobar', ale#Escape('foobar') . ' --force-exclusion --format json --stdin %s' Execute(The linter options should be configurable): let b:ale_chef_cookstyle_options = '--parallel' AssertLinter 'cookstyle', ale#Escape('cookstyle') . ' --parallel --force-exclusion --format json --stdin %s'