refactor(custom-datetime): generate the six inserters from one macro

The six cj/insert-* commands were identical except their format variable and a one-word docstring noun. Replace them with a cj/--define-datetime-inserter macro and six table-style calls; the format defvars and the keymap are unchanged. Adds a test asserting all six stay interactive commands.

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/test-custom-datetime-all-methods.el b/tests/test-custom-datetime-all-methods.el
index c9cfa41e2..62b421bdc 100644
--- a/tests/test-custom-datetime-all-methods.el
+++ b/tests/test-custom-datetime-all-methods.el
@@ -108,5 +108,19 @@
      (cj/insert-sortable-date))
     (should (string-prefix-p "before 2026-02-15" (buffer-string)))))
 
+;;; Macro-generated commands stay interactive
+
+(ert-deftest test-custom-datetime-all-methods-are-interactive-commands ()
+  "All six inserters generated by `cj/--define-datetime-inserter' are
+interactive commands (so they keep working via M-x and the C-; d keymap)."
+  (dolist (cmd '(cj/insert-readable-date-time
+                 cj/insert-sortable-date-time
+                 cj/insert-sortable-time
+                 cj/insert-readable-time
+                 cj/insert-sortable-date
+                 cj/insert-readable-date))
+    (should (fboundp cmd))
+    (should (commandp cmd))))
+
 (provide 'test-custom-datetime-all-methods)
 ;;; test-custom-datetime-all-methods.el ends here