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;;; test-vterm-toggle--buffer-filter.el --- Tests for F12's buffer filter -*- lexical-binding: t; -*-
;;; Commentary:
;; Three closely-related helpers determine which vterm buffers F12
;; manages: the predicate `cj/--vterm-toggle-buffer-p', the MRU list
;; `cj/--vterm-toggle-buffers', and the per-frame window finder
;; `cj/--vterm-toggle-displayed-window'. All three exclude claude-
;; prefixed buffers so claude has its own F9 surface.
;;; Code:
(require 'ert)
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
(require 'eshell-vterm-config)
(require 'testutil-vterm-buffers)
(defun test-vterm-toggle--cleanup ()
"Kill leftover claude- and *test-vterm- prefixed buffers."
(cj/test--kill-claude-buffers)
(cj/test--kill-test-vterm-buffers))
(ert-deftest test-vterm-toggle--buffer-p-accepts-vterm-mode ()
"Normal: a vterm-mode buffer with non-claude name qualifies."
(test-vterm-toggle--cleanup)
(let ((buf (cj/test--make-fake-vterm-buffer "*test-vterm-1*")))
(unwind-protect
(should (cj/--vterm-toggle-buffer-p buf))
(kill-buffer buf))))
(ert-deftest test-vterm-toggle--buffer-p-rejects-claude ()
"Boundary: claude-prefixed vterm buffers are excluded from F12's set."
(test-vterm-toggle--cleanup)
(let ((buf (cj/test--make-fake-vterm-buffer "claude [project-a]")))
(unwind-protect
(should-not (cj/--vterm-toggle-buffer-p buf))
(kill-buffer buf))))
(ert-deftest test-vterm-toggle--buffer-p-rejects-non-vterm ()
"Boundary: a regular buffer (not vterm-mode, no vterm name prefix) -> nil."
(test-vterm-toggle--cleanup)
(let ((buf (get-buffer-create "*test-vterm-regular*")))
(unwind-protect
(should-not (cj/--vterm-toggle-buffer-p buf))
(kill-buffer buf))))
(ert-deftest test-vterm-toggle--buffer-p-rejects-dead-buffer ()
"Boundary: nil and dead buffers -> nil."
(should-not (cj/--vterm-toggle-buffer-p nil))
(let ((buf (cj/test--make-fake-vterm-buffer "*test-vterm-dead*")))
(kill-buffer buf)
(should-not (cj/--vterm-toggle-buffer-p buf))))
(ert-deftest test-vterm-toggle--buffers-filters-claude ()
"Normal: returns vterm buffers but excludes claude-prefixed ones."
(test-vterm-toggle--cleanup)
(let ((normal (cj/test--make-fake-vterm-buffer "*test-vterm-normal*"))
(claude (cj/test--make-fake-vterm-buffer "claude [for-test]")))
(unwind-protect
(let ((result (cj/--vterm-toggle-buffers)))
(should (memq normal result))
(should-not (memq claude result)))
(kill-buffer normal)
(kill-buffer claude))))
(ert-deftest test-vterm-toggle--displayed-window-finds-vterm ()
"Normal: vterm in a window -> returns that window."
(test-vterm-toggle--cleanup)
(let ((vt (cj/test--make-fake-vterm-buffer "*test-vterm-shown*")))
(unwind-protect
(save-window-excursion
(delete-other-windows)
(let ((win (split-window-right)))
(set-window-buffer win vt)
(let ((result (cj/--vterm-toggle-displayed-window)))
(should (windowp result))
(should (eq (window-buffer result) vt)))))
(kill-buffer vt))))
(ert-deftest test-vterm-toggle--displayed-window-skips-claude ()
"Boundary: only a claude vterm is displayed -> nil (claude not F12-managed)."
(test-vterm-toggle--cleanup)
(let ((claude (cj/test--make-fake-vterm-buffer "claude [skip-test]")))
(unwind-protect
(save-window-excursion
(delete-other-windows)
(let ((win (split-window-right)))
(set-window-buffer win claude)
(should-not (cj/--vterm-toggle-displayed-window))))
(kill-buffer claude))))
(provide 'test-vterm-toggle--buffer-filter)
;;; test-vterm-toggle--buffer-filter.el ends here
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