Before: call ale#assert#SetUpLinterTest('swift', 'sourcekitlsp') After: call ale#assert#TearDownLinterTest() Execute(The default executable path should be correct): call ale#test#SetFilename('../test-files/swift/swift-package-project/src/folder/dummy.swift') AssertLinter 'sourcekit-lsp', ale#Escape('sourcekit-lsp') Execute(Should let users configure a global executable and override local paths): call ale#test#SetFilename('../test-files/swift/swift-package-project/src/folder/dummy.swift') let g:ale_sourcekit_lsp_executable = '/path/to/custom/sourcekitlsp' AssertLinter '/path/to/custom/sourcekitlsp', \ ale#Escape('/path/to/custom/sourcekitlsp') Execute(The language should be correct): AssertLSPLanguage 'swift'