refactor(term): F12 opens eshell-through-EAT, retire eshell-toggle and xterm-color

Point the F12 dock-and-remember toggle at eshell instead of a standalone EAT zsh shell, so the primary terminal is eshell running through EAT (eat-eshell-mode): elisp functions as commands, TRAMP transparency, and EAT rendering visual commands. Drop the eshell-toggle package and its C-<f12> binding, since F12 covers it now. Drop xterm-color from eshell, since EAT handles ANSI color natively and its TERM=xterm-256color fought EAT's own. The toggle's buffer predicate now matches eshell-mode; the toggle tests and fixture are updated.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/testutil-ghostel-buffers.el b/tests/testutil-ghostel-buffers.el
index 3c8d75d00..8e26efec4 100644
--- a/tests/testutil-ghostel-buffers.el
+++ b/tests/testutil-ghostel-buffers.el
@@ -56,5 +56,15 @@ predicate without the side-effects of `(eat)'."
       (setq-local major-mode 'eat-mode))
     buf))
 
+(defun cj/test--make-fake-eshell-buffer (name)
+  "Return a buffer named NAME with `major-mode' set to `eshell-mode'.
+
+Avoids starting a real eshell by setting the mode buffer-locally.  Used by the
+F12 toggle tests that need a buffer satisfying the eshell-mode predicate."
+  (let ((buf (get-buffer-create name)))
+    (with-current-buffer buf
+      (setq-local major-mode 'eshell-mode))
+    buf))
+
 (provide 'testutil-ghostel-buffers)
 ;;; testutil-ghostel-buffers.el ends here