bug#60332: [PATCH] ; whitespace: Use the new `ert-with-buffer-selected' in tests

[Richard Hansen <rhansen@rhansen.org>]

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Commit 286c48137f69fa96b80d197da90c69a42df604a3 added a new 
`ert-with-test-buffer-selected' macro.  Use that macro in 
`whitespace-mode' tests to avoid code duplication.

This modifies tests added in emacs-29.

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From 2fa997c4869b1310601e1e08a33fd77ed655c2a4 Mon Sep 17 00:00:00 2001
From: Richard Hansen <rhansen@rhansen.org>
Date: Sun, 18 Dec 2022 00:24:16 -0500
Subject: [PATCH] ; whitespace: Use the new `ert-with-buffer-selected' in tests

Commit 286c48137f69fa96b80d197da90c69a42df604a3 added a new
`ert-with-test-buffer-selected' macro.  Use that macro in `whitespace-mode'
tests to avoid code duplication.
---
 test/lisp/whitespace-tests.el | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/test/lisp/whitespace-tests.el b/test/lisp/whitespace-tests.el
index e4a8a34801..9a9fb55e4f 100644
--- a/test/lisp/whitespace-tests.el
+++ b/test/lisp/whitespace-tests.el
@@ -42,13 +42,6 @@ whitespace-tests--with-test-buffer
           '(whitespace-mode 1))
        ,@body)))
 
-(defmacro whitespace--with-buffer-selected (buffer-or-name &rest body)
-  (declare (debug (form body)) (indent 1))
-  `(save-window-excursion
-     (with-current-buffer (or ,buffer-or-name (current-buffer))
-       (with-selected-window (display-buffer (current-buffer))
-         ,@body))))
-
 (defun whitespace-tests--faceup (&rest lines)
   "Convenience wrapper around `faceup-test-font-lock-buffer'.
 Returns non-nil if the concatenated LINES match the current
@@ -360,7 +353,7 @@ whitespace-tests--indirect-clone-breaks-base-markers
           (indirect (clone-indirect-buffer (buffer-name) nil)))
       (should (eq (marker-buffer whitespace-bob-marker) base))
       (should (eq (marker-buffer whitespace-eob-marker) base))
-      (whitespace--with-buffer-selected indirect
+      (ert-with-buffer-selected indirect
         ;; Mutate the indirect buffer to update its bob/eob markers.
         (execute-kbd-macro (kbd "z RET M-< a")))
       ;; With Bug#59618, the above mutation would cause the base
@@ -388,7 +381,7 @@ whitespace-tests--indirect-clone-markers
           ;; because the buffer should only be killed on success.
           (indirect (clone-indirect-buffer nil nil)))
       (whitespace-tests--check-markers base 2 4)
-      (whitespace--with-buffer-selected indirect
+      (ert-with-buffer-selected indirect
         (whitespace-tests--check-markers indirect 2 4)
         ;; Mutate the buffer to trigger `after-change-functions' and
         ;; thus `whitespace--update-bob-eob'.
@@ -411,7 +404,7 @@ whitespace-tests--regular-clone-markers
           ;; the buffer should only be killed on success.
           (clone (clone-buffer)))
       (whitespace-tests--check-markers orig 2 4)
-      (whitespace--with-buffer-selected clone
+      (ert-with-buffer-selected clone
         (whitespace-tests--check-markers clone 2 4)
         (execute-kbd-macro (kbd "z RET M-< a"))
         (whitespace-tests--check-markers clone 1 8))
-- 
2.39.0


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