add a test

test/style/module_directives_test.exs

@@ -349,4 +349,34 @@ defmodule Styler.Style.ModuleDirectivesTest do
       """)
     end
   end
+
+  describe "with comments..." do
+    test "moving aliases up through non-directives doesn't move comments up" do
+      assert_style """
+      defmodule Foo do
+        alias B
+        # hi
+        # this is foo
+        def foo do
+          # i promise it's ok!
+          :ok
+        end
+        alias A
+      end
+      """,
+      """
+      defmodule Foo do
+        @moduledoc false
+        alias A
+        alias B
+        # hi
+        # this is foo
+        def foo do
+          # i promise it's ok!
+          :ok
+        end
+      end
+      """
+    end
+  end
 end