fallback to elm if elm-tests isn’t available

ale_linters/elm/make.vim

@@ -209,7 +209,11 @@ function! ale_linters#elm#make#GetExecutable(buffer) abort
     let l:is_v19 = ale_linters#elm#make#IsVersionGte19(a:buffer)
 
     if l:is_test && l:is_v19
-        return ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm-test'])
+        return ale#node#FindExecutable(
+\           a:buffer,
+\           'elm_make',
+\           ['node_modules/.bin/elm-test', 'node_modules/.bin/elm']
+\       )
     else
         return ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm'])
     endif

test/command_callback/test_elm_make_command_callback.vader

@@ -24,6 +24,15 @@ Execute(should get elm-test executable for test code with elm >= 0.19):
   \ 'cd ' . ale#Escape(ale#path#Simplify(g:dir . '/../elm-test-files/newapp')) . ' && '
   \ . ale#Escape(g:executable) . ' make --report=json --output=/dev/null %t'
 
+Execute(should fallback to elm executable with elm >= 0.19):
+  call ale#test#SetFilename('../elm-test-files/newapp-notests/tests/TestMain.elm')
+
+  let g:executable = ale#path#Simplify(g:dir . '/../elm-test-files/newapp-notests/node_modules/.bin/elm')
+
+  AssertLinter g:executable,
+  \ 'cd ' . ale#Escape(ale#path#Simplify(g:dir . '/../elm-test-files/newapp-notests')) . ' && '
+  \ . ale#Escape(g:executable) . ' make --report=json --output=/dev/null %t'
+
 Execute(should get plain elm executable for test code with elm < 0.19):
   call ale#test#SetFilename('../elm-test-files/oldapp/tests/TestSuite.elm')