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;;; test-wttrin--mode-line-timer-lifecycle.el --- Mode-line timer lifecycle -*- lexical-binding: t; -*-
;; Copyright (C) 2024-2026 Craig Jennings
;;; Commentary:
;; Tests that disabling wttrin-mode-line-mode before the delayed startup fetch
;; fires cannot start the mode-line: the one-shot startup timer is cancelled and
;; the deferred after-init hook is removed, and the startup callback no-ops when
;; the mode is off.
;;; Code:
(require 'ert)
(require 'cl-lib)
(require 'wttrin)
(require 'testutil-wttrin)
(ert-deftest test-wttrin--mode-line-fetch-weather-if-enabled-normal-runs-when-enabled ()
"Normal: the delayed startup fetch runs when the mode is on."
(let ((called nil))
(cl-letf (((symbol-function 'wttrin--mode-line-fetch-weather)
(lambda (&rest _) (setq called t))))
(let ((wttrin-mode-line-mode t))
(wttrin--mode-line-fetch-weather-if-enabled)
(should called)))))
(ert-deftest test-wttrin--mode-line-fetch-weather-if-enabled-error-skips-when-disabled ()
"Error: the delayed startup fetch is skipped when the mode was turned off
before it fired, so a disabled mode never hits the network or mutates state."
(let ((called nil))
(cl-letf (((symbol-function 'wttrin--mode-line-fetch-weather)
(lambda (&rest _) (setq called t))))
(let ((wttrin-mode-line-mode nil))
(wttrin--mode-line-fetch-weather-if-enabled)
(should-not called)))))
(ert-deftest test-wttrin--mode-line-stop-boundary-cancels-startup-timer-and-hook ()
"Boundary: stop cancels a pending startup timer and removes the after-init
hook, so neither can start the mode-line after the user disabled it."
(let ((wttrin--mode-line-timer nil)
(wttrin--buffer-refresh-timer nil)
(wttrin--mode-line-startup-timer (run-at-time 9999 nil #'ignore))
(wttrin-mode-line-string nil)
(wttrin--mode-line-cache nil)
(wttrin--mode-line-rendered-stale nil))
(add-hook 'after-init-hook #'wttrin--mode-line-start)
(unwind-protect
(progn
(wttrin--mode-line-stop)
(should (null wttrin--mode-line-startup-timer))
(should-not (memq #'wttrin--mode-line-start after-init-hook)))
(remove-hook 'after-init-hook #'wttrin--mode-line-start))))
(provide 'test-wttrin--mode-line-timer-lifecycle)
;;; test-wttrin--mode-line-timer-lifecycle.el ends here
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