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;;; test-ai-vterm--dispatch.el --- Tests for cj/--ai-vterm-dispatch -*- lexical-binding: t; -*-
;;; Commentary:
;; The dispatch helper is a pure decision function used by F9.
;; Returns one of (toggle-off . WIN), (redisplay-single . BUF),
;; or (pick-project) based on whether a claude buffer is currently
;; displayed and how many alive claude buffers exist. Tests mock the
;; two underlying helpers so the dispatch logic can be exercised
;; without touching real windows.
;;; Code:
(require 'ert)
(require 'cl-lib)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(require 'ai-vterm)
(defun test-ai-vterm--dispatch-cleanup ()
"Kill any leftover claude-prefixed buffers."
(dolist (b (buffer-list))
(when (string-prefix-p "claude [" (buffer-name b))
(kill-buffer b))))
(ert-deftest test-ai-vterm--dispatch-window-displayed-returns-toggle-off ()
"Normal: displayed claude window -> (toggle-off . WIN)."
(let ((sentinel-win 'fake-window))
(cl-letf (((symbol-function 'cj/--ai-vterm-displayed-claude-window)
(lambda (&optional _frame) sentinel-win)))
(should (equal (cj/--ai-vterm-dispatch)
(cons 'toggle-off sentinel-win))))))
(ert-deftest test-ai-vterm--dispatch-no-window-single-buffer-returns-redisplay ()
"Normal: no displayed claude, exactly one alive buffer -> redisplay-single."
(test-ai-vterm--dispatch-cleanup)
(let ((b1 (get-buffer-create "claude [single]")))
(unwind-protect
(cl-letf (((symbol-function 'cj/--ai-vterm-displayed-claude-window)
(lambda (&optional _frame) nil))
((symbol-function 'cj/--ai-vterm-claude-buffers)
(lambda () (list b1))))
(should (equal (cj/--ai-vterm-dispatch)
(cons 'redisplay-single b1))))
(kill-buffer b1))))
(ert-deftest test-ai-vterm--dispatch-no-window-multiple-buffers-returns-pick-project ()
"Normal: no displayed claude, 2+ alive buffers -> pick-project."
(test-ai-vterm--dispatch-cleanup)
(let ((b1 (get-buffer-create "claude [a]"))
(b2 (get-buffer-create "claude [b]")))
(unwind-protect
(cl-letf (((symbol-function 'cj/--ai-vterm-displayed-claude-window)
(lambda (&optional _frame) nil))
((symbol-function 'cj/--ai-vterm-claude-buffers)
(lambda () (list b1 b2))))
(should (equal (cj/--ai-vterm-dispatch) '(pick-project))))
(kill-buffer b1)
(kill-buffer b2))))
(ert-deftest test-ai-vterm--dispatch-no-window-zero-buffers-returns-pick-project ()
"Boundary: no displayed claude, zero alive buffers -> pick-project."
(test-ai-vterm--dispatch-cleanup)
(cl-letf (((symbol-function 'cj/--ai-vterm-displayed-claude-window)
(lambda (&optional _frame) nil))
((symbol-function 'cj/--ai-vterm-claude-buffers)
(lambda () nil)))
(should (equal (cj/--ai-vterm-dispatch) '(pick-project)))))
(provide 'test-ai-vterm--dispatch)
;;; test-ai-vterm--dispatch.el ends here
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