message: fix: Revert "add tests for variable expansion with non-alphanumerical characters"
  This reverts commit
diff: @@ -313,22 +313,6 @@ pub(crate) mod tests {
  assert_eq!("BAR", &expanded);
  }
  - #[test]
  - fn set_var_with_nonalphanumerical_name() {
  - let mut variables = Variables::default();
  - variables.set("FOO!-", "BAR");
  - let expanded = VariableExpander(variables).expand_string("$FOO!-").unwrap().join("");
  - assert_eq!("BAR", &expanded);
  - }
  -
  - #[test]
  - fn set_var_with_nonalphanumerical_braces_name() {
  - let mut variables = Variables::default();
  - variables.set("FOO!-", "BAR");
  - let expanded = VariableExpander(variables).expand_string("${FOO!-}").unwrap().join("");
  - assert_eq!("BAR", &expanded);
  - }
  -
  #[test]
  #[serial]
  fn minimal_directory_var_should_compact_path() {
  