Add a test comment

src/myxa/resolver.py

@@ -21,6 +21,7 @@ def resolve(self, entry_package: Package) -> dict[str, Dep]:
         if not self._resolve(entry_package):
             msg = "Unable to resolve dependencies."
             raise UserError(msg)
+            # TODO: Add a test for this case
         self.resolved.pop(entry_package.info.name)
         ret = self.resolved
         self.resolved = {}