test: add ERT coverage for modeline-config and hugo-config

Add 67 tests across 6 new test files for modeline and hugo modules.
Refactor hugo-config: extract post-file-path and post-template helpers
from interactive new-post function for testability. Update todo.org
with test audit (31 modules), priority adjustments, and task cleanup.

1 files changed, 25 insertions, 14 deletions

diff --git a/modules/hugo-config.el b/modules/hugo-config.el
index 8bc2cef2..33245fd4 100644
--- a/modules/hugo-config.el
+++ b/modules/hugo-config.el
@@ -34,31 +34,42 @@
 
 ;; ----------------------------- Hugo Blog Functions ---------------------------
 
+(defun cj/hugo--post-file-path (title)
+  "Return the file path for a Hugo post with TITLE.
+Generates a slug from TITLE using `org-hugo-slug' and returns
+the full path under `cj/hugo-content-org-dir'.
+Assumes ox-hugo is already loaded (via use-package declaration above)."
+  (let ((slug (org-hugo-slug title)))
+    (expand-file-name (concat slug ".org") cj/hugo-content-org-dir)))
+
+(defun cj/hugo--post-template (title date)
+  "Return the Org front matter template for a Hugo post.
+TITLE is the post title, DATE is the date string (YYYY-MM-DD)."
+  (format "#+hugo_base_dir: ../../
+#+hugo_section: log
+#+hugo_auto_set_lastmod: t
+#+title: %s
+#+date: %s
+#+hugo_tags:
+#+hugo_draft: true
+#+hugo_custom_front_matter: :description \"\"
+
+" title date))
+
 (defun cj/hugo-new-post ()
   "Create a new Hugo blog post as a standalone Org file.
 Prompts for title, generates the slug filename, and opens the
 new file with Hugo front matter keywords pre-filled."
   (interactive)
-  (require 'ox-hugo)
   (let* ((title (read-from-minibuffer "Post Title: "))
-         (slug (org-hugo-slug title))
-         (date (format-time-string "%Y-%m-%d"))
-         (file (expand-file-name (concat slug ".org") cj/hugo-content-org-dir)))
+         (file (cj/hugo--post-file-path title))
+         (date (format-time-string "%Y-%m-%d")))
     (when (file-exists-p file)
       (user-error "Post already exists: %s" file))
     (unless (file-directory-p cj/hugo-content-org-dir)
       (make-directory cj/hugo-content-org-dir t))
     (find-file file)
-    (insert (format "#+hugo_base_dir: ../../
-#+hugo_section: log
-#+hugo_auto_set_lastmod: t
-#+title: %s
-#+date: %s
-#+hugo_tags:
-#+hugo_draft: true
-#+hugo_custom_front_matter: :description \"\"
-
-" title date))
+    (insert (cj/hugo--post-template title date))
     (save-buffer)
     (message "New post: %s" file)))