;;; test-pearl-open.el --- Tests for open-issue-in-browser -*- 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 `pearl-open-current-issue', which opens the issue at point
;; in the browser from its LINEAR-URL property.  `browse-url' is stubbed.

;;; Code:

(require 'test-bootstrap (expand-file-name "test-bootstrap.el"))
(require 'cl-lib)

(defmacro test-pearl--in-org (content &rest body)
  "Run BODY in an org-mode temp buffer holding CONTENT at point-min."
  (declare (indent 1))
  `(with-temp-buffer
     (insert ,content)
     (org-mode)
     (goto-char (point-min))
     ,@body))

(ert-deftest test-pearl-open-current-issue-visits-url ()
  "The command passes the heading's LINEAR-URL to `browse-url'."
  (let ((visited nil))
    (test-pearl--in-org
        "*** TODO Title\n:PROPERTIES:\n:LINEAR-ID: a\n:LINEAR-URL: https://linear.app/x/ENG-1\n:END:\nbody\n"
      (cl-letf (((symbol-function 'browse-url)
                 (lambda (url &rest _) (setq visited url))))
        (goto-char (point-max))
        (pearl-open-current-issue)
        (should (string= "https://linear.app/x/ENG-1" visited))))))

(ert-deftest test-pearl-open-current-issue-no-url-errors ()
  "An issue heading without a LINEAR-URL signals a user error, no browse."
  (let ((visited nil))
    (test-pearl--in-org
        "*** TODO Title\n:PROPERTIES:\n:LINEAR-ID: a\n:END:\n"
      (cl-letf (((symbol-function 'browse-url)
                 (lambda (url &rest _) (setq visited url))))
        (should-error (pearl-open-current-issue) :type 'user-error)
        (should-not visited)))))

(ert-deftest test-pearl-open-current-issue-not-on-issue-errors ()
  "Running outside a heading signals a user error."
  (test-pearl--in-org "plain text, no heading\n"
    (should-error (pearl-open-current-issue) :type 'user-error)))

(provide 'test-pearl-open)
;;; test-pearl-open.el ends here