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;;; terminal-tests.el --- tests for terminal.c -*- lexical-binding: t -*-
;; Copyright (C) 2026 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Code:
(require 'ert)
(ert-deftest frame-initial-p ()
"Test `frame-initial-p' behavior."
(should-not (frame-initial-p t))
(should-not (frame-initial-p (current-buffer)))
(should-not (frame-initial-p (selected-window)))
;; "Initial frame" implies "initial terminal", and
;; no other terminal can have the initial frame.
(should-not (xor (equal (terminal-name) "initial_terminal")
(frame-initial-p)))
;; Initial frame implies its terminal is a termcap-like
;; text-mode terminal.
(should (or (not (frame-initial-p))
(eq (terminal-live-p nil) t)))
;; It similarly implies a termcap-like text-mode frame.
(should (or (not (frame-initial-p))
(eq (frame-live-p (selected-frame)) t)))
(dolist (ft (append '(nil) (frame-list) (terminal-list)))
(ert-info ((prin1-to-string ft) :prefix "Argument: ")
(should-not (xor (equal (terminal-name ft) "initial_terminal")
(frame-initial-p ft)))
(should (or (not (frame-initial-p ft))
(eq (terminal-live-p ft) t)))))
(cond (noninteractive
;; Batch mode should have an initial frame.
(should (any #'frame-initial-p (frame-list)))
(should (any #'frame-initial-p (terminal-list))))
((not (daemonp))
;; Non-daemon interactive mode should have none.
(should-not (any #'frame-initial-p (frame-list)))
(should-not (any #'frame-initial-p (terminal-list))))))
;;; terminal-tests.el ends here
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