#3633 - Move linter tests into test/linter

test/linter/test_psalm.vader

@@ -0,0 +1,38 @@
+Before:
+  call ale#assert#SetUpLinterTest('php', 'psalm')
+
+After:
+  unlet! g:i
+  unlet! g:matched
+
+  if isdirectory(g:dir . '/.git')
+    call delete(g:dir . '/.git', 'd')
+  endif
+
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default executable path should be correct):
+  AssertLinter 'psalm',
+  \ ale#Escape('psalm') . ' --language-server'
+
+Execute(Vendor executables should be detected):
+  call ale#test#SetFilename('../test-files/psalm/test.php')
+
+  AssertLinter
+  \ ale#path#Simplify(g:dir . '/../test-files/psalm/vendor/bin/psalm'),
+  \ ale#Escape(ale#path#Simplify(
+  \   g:dir
+  \   . '/../test-files/psalm/vendor/bin/psalm'
+  \ )) . ' --language-server'
+
+  let g:ale_php_psalm_use_global = 1
+
+  AssertLinter 'psalm',
+  \ ale#Escape('psalm') . ' --language-server'
+
+Execute(User provided options should be used):
+  let g:ale_php_psalm_options = '--my-user-provided-option my-value'
+
+  AssertLinter 'psalm',
+  \ ale#Escape('psalm')
+  \ . ' --language-server --my-user-provided-option my-value'