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-rw-r--r--tests/test-ai-vterm--show-or-create.el39
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/test-ai-vterm--show-or-create.el b/tests/test-ai-vterm--show-or-create.el
index 3faf5f03..3fee4883 100644
--- a/tests/test-ai-vterm--show-or-create.el
+++ b/tests/test-ai-vterm--show-or-create.el
@@ -105,6 +105,45 @@ VARS is a plist of capture variable names: :calls, :strings, :returns,
(should-not (buffer-live-p stale)))))
(test-ai-vterm--cleanup name))))
+(ert-deftest test-ai-vterm--show-or-create-preserves-selected-window ()
+ "Regression: vterm's pop-to-buffer-same-window must not bury the dashboard.
+
+Real `vterm' replaces the selected window's buffer as a side-effect of
+construction. On a fresh-boot frame (one window showing the dashboard),
+that side-effect previously left the original window pointing at the new
+claude buffer; the dashboard was buried, the alist-routed split then
+created a second window also showing claude. The wrapper must restore
+the original window state before `display-buffer' fires so dashboard
+stays put and the alist places claude into a fresh right-side split.
+
+This test stubs `vterm' to mimic the pop-to-buffer-same-window side-effect
+and asserts the originally-selected window still shows its original buffer
+after `cj/--ai-vterm-show-or-create' returns."
+ (let ((claude-name "claude [preserve-window-test]")
+ (orig-name "*test-original-buffer*"))
+ (test-ai-vterm--cleanup claude-name)
+ (when (get-buffer orig-name) (kill-buffer orig-name))
+ (unwind-protect
+ (save-window-excursion
+ (delete-other-windows)
+ (let ((orig-buf (get-buffer-create orig-name))
+ (orig-win (selected-window)))
+ (set-window-buffer orig-win orig-buf)
+ (cl-letf
+ (((symbol-function 'vterm)
+ (lambda (&optional name)
+ (let ((buf (get-buffer-create name)))
+ (set-window-buffer (selected-window) buf)
+ buf)))
+ ((symbol-function 'vterm-send-string)
+ (lambda (_s &optional _) nil))
+ ((symbol-function 'vterm-send-return)
+ (lambda () nil)))
+ (cj/--ai-vterm-show-or-create "/tmp/preserve" claude-name)
+ (should (eq (window-buffer orig-win) orig-buf)))))
+ (test-ai-vterm--cleanup claude-name)
+ (when (get-buffer orig-name) (kill-buffer orig-name)))))
+
(ert-deftest test-ai-vterm--show-or-create-returns-buffer ()
"Normal: return value is the vterm buffer."
(let ((name "claude [return-test]"))