Before: call ale#assert#SetUpLinterTest('zig', 'zls') After: call ale#assert#TearDownLinterTest() Execute(The default executable path should be correct): AssertLinter 'zls', ale#Escape('zls') Execute(The project root should be detected correctly): AssertLSPProject '' call ale#test#SetFilename('../test-files/zig/main.zig') AssertLSPProject ale#path#Simplify(g:dir . '/../test-files/zig')