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;;; test-pearl-glyphs.el --- Tests for heading content glyphs -*- lexical-binding: t; -*-
;; Copyright (C) 2026 Craig Jennings
;; Author: Craig Jennings <c@cjennings.net>
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Tests for the heading-glyph overlay: a ticket glyph on issue headings
;; (LINEAR-ID) and a speech glyph on comment headings (LINEAR-COMMENT-ID),
;; laid as a `display' overlay on the space after the leading stars so the glyph
;; sits ahead of the TODO keyword without changing buffer text.
;;; Code:
(require 'test-bootstrap (expand-file-name "test-bootstrap.el"))
(require 'cl-lib)
(defmacro test-pearl-glyphs--in-org (content &rest body)
"Run BODY in an org-mode temp buffer holding CONTENT."
(declare (indent 1))
`(let ((org-todo-keywords '((sequence "TODO" "IN-PROGRESS" "|" "DONE"))))
(with-temp-buffer
(insert ,content)
(org-mode)
(goto-char (point-min))
,@body)))
(defun test-pearl-glyphs--overlays ()
"Return the list of pearl-glyph overlays in the current buffer."
(cl-remove-if-not (lambda (o) (overlay-get o 'pearl-glyph))
(overlays-in (point-min) (point-max))))
;;; --heading-glyph (pure dispatch)
(ert-deftest test-pearl-heading-glyph-comment-wins ()
"A comment id selects the comment glyph even when an issue id is also present."
(should (equal (pearl--heading-glyph "c1" "i1") pearl--comment-glyph)))
(ert-deftest test-pearl-heading-glyph-issue ()
"An issue id with no comment id selects the ticket glyph."
(should (equal (pearl--heading-glyph nil "i1") pearl--ticket-glyph)))
(ert-deftest test-pearl-heading-glyph-none ()
"A heading with neither id gets no glyph."
(should (null (pearl--heading-glyph nil nil))))
;;; --apply-heading-glyphs (overlay placement)
(ert-deftest test-pearl-apply-glyphs-issue-heading ()
"An issue heading gets a ticket-glyph display overlay on the post-stars space."
(test-pearl-glyphs--in-org
"* TODO SE-1: title\n:PROPERTIES:\n:LINEAR-ID: i1\n:END:\n"
(let ((pearl-show-glyphs t))
(pearl--apply-heading-glyphs)
(let ((ovs (test-pearl-glyphs--overlays)))
(should (= (length ovs) 1))
(should (string-match-p (regexp-quote pearl--ticket-glyph)
(overlay-get (car ovs) 'display)))))))
(ert-deftest test-pearl-apply-glyphs-comment-heading ()
"A comment heading gets the speech-glyph display overlay."
(test-pearl-glyphs--in-org
"**** Craig — 2026-05-23\n:PROPERTIES:\n:LINEAR-COMMENT-ID: c1\n:END:\n"
(let ((pearl-show-glyphs t))
(pearl--apply-heading-glyphs)
(let ((ovs (test-pearl-glyphs--overlays)))
(should (= (length ovs) 1))
(should (string-match-p (regexp-quote pearl--comment-glyph)
(overlay-get (car ovs) 'display)))))))
(ert-deftest test-pearl-apply-glyphs-plain-heading-none ()
"A heading with no Linear drawer gets no glyph overlay."
(test-pearl-glyphs--in-org
"* TODO just an org heading\n* Pearl Help\n"
(let ((pearl-show-glyphs t))
(pearl--apply-heading-glyphs)
(should (null (test-pearl-glyphs--overlays))))))
(ert-deftest test-pearl-apply-glyphs-idempotent ()
"Re-applying does not stack duplicate glyph overlays."
(test-pearl-glyphs--in-org
"* TODO SE-1: title\n:PROPERTIES:\n:LINEAR-ID: i1\n:END:\n"
(let ((pearl-show-glyphs t))
(pearl--apply-heading-glyphs)
(pearl--apply-heading-glyphs)
(should (= (length (test-pearl-glyphs--overlays)) 1)))))
(ert-deftest test-pearl-apply-glyphs-off-clears ()
"With `pearl-show-glyphs' nil, applying lays no overlay and clears any prior."
(test-pearl-glyphs--in-org
"* TODO SE-1: title\n:PROPERTIES:\n:LINEAR-ID: i1\n:END:\n"
(let ((pearl-show-glyphs t))
(pearl--apply-heading-glyphs))
(let ((pearl-show-glyphs nil))
(pearl--apply-heading-glyphs)
(should (null (test-pearl-glyphs--overlays))))))
(ert-deftest test-pearl-apply-glyphs-mixed-buffer ()
"Issue and comment headings each get their own glyph; the count matches."
(test-pearl-glyphs--in-org
(concat "* TODO SE-1: title\n:PROPERTIES:\n:LINEAR-ID: i1\n:END:\n"
"** 💬 Comments\n"
"*** Craig — 2026-05-23\n:PROPERTIES:\n:LINEAR-COMMENT-ID: c1\n:END:\n")
(let ((pearl-show-glyphs t))
(pearl--apply-heading-glyphs)
(let ((ovs (test-pearl-glyphs--overlays)))
;; Two glyphed headings: the issue and the one real comment. The
;; "Comments" container carries no Linear id, so it gets nothing.
(should (= (length ovs) 2))))))
(provide 'test-pearl-glyphs)
;;; test-pearl-glyphs.el ends here
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