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;;; test-wttrin--display-weather-focus.el --- Async render doesn't steal focus -*- lexical-binding: t; -*-
;; Copyright (C) 2024-2026 Craig Jennings
;;; Commentary:
;; wttrin--display-weather runs from an async callback. If the user moved to
;; another buffer while the fetch was in flight, rendering the result must not
;; select *wttr.in* and steal the window.
;;; Code:
(require 'ert)
(require 'wttrin)
(require 'testutil-wttrin)
(ert-deftest test-wttrin--display-weather-error-does-not-steal-focus ()
"Error: rendering an async response does not select *wttr.in*.
If the user moved to another buffer while the fetch was in flight, displaying
the result must leave the selected window on that other buffer."
(let ((other (get-buffer-create "*wttrin-other*")))
(unwind-protect
(progn
(set-window-buffer (selected-window) other)
(wttrin--display-weather "Paris" "Weather report: paris\n+10 C\n"
nil nil nil)
(should (eq (window-buffer (selected-window)) other)))
(when (get-buffer "*wttr.in*") (kill-buffer "*wttr.in*"))
(when (buffer-live-p other) (kill-buffer other)))))
(ert-deftest test-wttrin--display-weather-normal-populates-buffer ()
"Normal: rendering still fills *wttr.in* with the weather content."
(let ((other (get-buffer-create "*wttrin-other*")))
(unwind-protect
(progn
(set-window-buffer (selected-window) other)
(wttrin--display-weather "Paris" "Weather report: paris\n+10 C\n"
nil nil nil)
(with-current-buffer "*wttr.in*"
(should (string-match-p "Weather report: Paris"
(buffer-string)))))
(when (get-buffer "*wttr.in*") (kill-buffer "*wttr.in*"))
(when (buffer-live-p other) (kill-buffer other)))))
(provide 'test-wttrin--display-weather-focus)
;;; test-wttrin--display-weather-focus.el ends here
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