diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/src/data-tests.el | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/src/data-tests.el b/test/src/data-tests.el index ad3b2071254..9d76c58224d 100644 --- a/test/src/data-tests.el +++ b/test/src/data-tests.el @@ -838,4 +838,41 @@ comparing the subr with a much slower Lisp implementation." (dolist (sym (list nil t 'xyzzy (make-symbol ""))) (should (eq sym (bare-symbol (position-symbol sym 0))))))) +(require 'cl-extra) ;For `cl--class-children'. + +(ert-deftest data-tests--cl-type-of () + ;; Make sure that `cl-type-of' returns the most precise type. + ;; Note: This doesn't work for list/vector structs since those types + ;; are too difficult/unreliable to detect (so `cl-type-of' only says + ;; it's a `cons' or a `vector'). + (dolist (val (list -2 10 (expt 2 128) nil t 'car + (symbol-function 'car) + (symbol-function 'progn) + (position-symbol 'car 7))) + (let* ((type (cl-type-of val)) + (class (cl-find-class type)) + (alltypes (cl--class-allparents class)) + ;; FIXME: Our type DAG is affected by `symbols-with-pos-enabled'. + ;; (e.g. `symbolp' returns nil on a sympos if that var is nil). + (symbols-with-pos-enabled t)) + (dolist (parent alltypes) + (should (cl-typep val parent)) + (dolist (subtype (cl--class-children (cl-find-class parent))) + (unless (memq subtype alltypes) + (unless (memq subtype + ;; FIXME: Some types don't have any associated + ;; predicate, + '( font-spec font-entity font-object + finalizer condvar terminal + native-comp-unit interpreted-function + tree-sitter-compiled-query + tree-sitter-node tree-sitter-parser + ;; `functionp' also matches things of type + ;; `symbol' and `cons'. + ;; FIXME: `subr-primitive-p' also matches + ;; special-forms. + function subr-primitive)) + (should-not (cl-typep val subtype))))))))) + + ;;; data-tests.el ends here |