Add new functions to mark/unmark/delete all bookmarks

[Matthew White <mehw.is.me@inventati.org>]

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Hello,

Attached here there is a patch to add new functions to mark, unmark,
and delete all bookmarks at once.

Menu entries and bindings are updated too, and tests are included.

You may consider this both a suggestion and a way to get an opinion
from the community.

I felt that some functions where missing, I'm used to type "U" in
dired to unmark all marks...

Summary (just main functions are described here):

* bookmark-delete-all: With ARG nil asks for confirmation. Deletes all
  bookmarks. Bound to "D" in `bookmark-map'.
* bookmark-bmenu-mark-all: Operates in the *Bookmark List* buffer.
  Marks all bookmarks. Bound to "M" in `bookmark-bmenu-mode-map'.
* bookmark-bmenu-unmark-all: Operates in the *Bookmark List* buffer.
  Unmarks all bookmarks. Bound to "U" in `bookmark-bmenu-mode-map'.
* bookmark-bmenu-delete-all: Operates in the *Bookmark List* buffer.
  Marks all bookmarks for deletion. Bound to "D" in `bookmark-bmenu-mode-map'.

--

Matthew White <mehw.is.me@inventati.org>

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From 12d3ebba1115085e23fc8eb4968fc8a1f72ffd32 Mon Sep 17 00:00:00 2001
From: Matthew White <mehw.is.me@inventati.org>
Date: Thu, 23 Jul 2020 21:14:32 +0000
Subject: [PATCH] Add new functions to mark/unmark/delete all bookmarks

* lisp/bookmark.el (bookmark-delete-all): New function to delete all
  bookmarks.
* lisp/bookmark.el (bookmark-bmenu-mark-all): New function to mark all
  bookmarks in the bookmark list buffer.
* lisp/bookmark.el (bookmark-bmenu-unmark-all): New function to unmark
  all bookmarks in the bookmark list buffer.
* lisp/bookmark.el (bookmark-bmenu-delete-all): New function to mark
  for deletion all bookmarks in the bookmark list buffer.
* lisp/bookmark.el (bookmark-map): Map "D" to `bookmark-delete-all'.
* lisp/bookmark.el (bookmark-bmenu-mode-map): New mappping for "M" to
  `bookmark-bmenu-mark-all'.
* lisp/bookmark.el (bookmark-bmenu-mode-map): New mappping for "U" to
  `bookmark-bmenu-unmark-all'.
* lisp/bookmark.el (bookmark-bmenu-mode-map): New mappping for "D" to
  `bookmark-bmenu-delete-all'.
* lisp/bookmark.el (bookmark-bmenu-mark-all): New bookmark menu to
  `bookmark-delete-all'.
* lisp/bookmark.el (easy-menu-define): New bookmark menu to
  `bookmark-bmenu-mark-all'.
* lisp/bookmark.el (easy-menu-define): New bookmark menu to
  `bookmark-bmenu-unmark-all'.
* lisp/bookmark.el (easy-menu-define): New bookmark menu to
  `bookmark-bmenu-delete-all'.
* lisp/bookmark.el (bookmark-bmenu-select): Update docstring to
  include a reference to `bookmark-bmenu-mark-all'.
* lisp/bookmark.el (bookmark-bmenu-mode): Update docstring. Add/Update
  description: `bookmark-bmenu-mark-all', `bookmark-bmenu-delete-all',
  `bookmark-bmenu-execute-deletions', and `bookmark-bmenu-unmark-all'.
* test/lisp/bookmark-resources/test-list.bmk: New bookmark file to
  test a list of bookmarks.
* test/lisp/bookmark-tests.el (bookmark-tests-bookmark-file-list): New
  reference to the bookmark file used for testing a list of bookmarks.
* test/lisp/bookmark-tests.el (bookmark-tests-bookmark-list-0,
  bookmark-tests-bookmark-list-1, bookmark-tests-bookmark-list-2): New
  cached values for testing a list of bookmark.
* test/lisp/bookmark-tests.el (bookmark-tests-cache-timestamp-list):
  New variable to set `bookmark-bookmarks-timestamp'.
* test/lisp/bookmark-tests.el (with-bookmark-test-list): New macro
  environment to test a list of bookmarks.
* test/lisp/bookmark-tests.el (with-bookmark-test-file-list): New
  macro environment to test a list of bookmarks with example.txt.
* test/lisp/bookmark-tests.el (with-bookmark-bmenu-test-list): New
  macro environment to test functions about a list of bookmarks from
  `bookmark-bmenu-list'.
* test/lisp/bookmark-tests.el (bookmark-tests-all-names-list,
  bookmark-tests-get-bookmark-list,
  bookmark-tests-get-bookmark-record-list): New functions to test the
  records of the list of bookmarks.
* test/lisp/bookmark-tests.el (bookmark-tests-make-record-list): New
  function to test the creation of a record from example.txt with a
  list of bookmarks loaded.
* test/lisp/bookmark-tests.el (bookmark-tests-delete-all): New
  function to test `bookmark-delete-all'.
* test/lisp/bookmark-tests.el (bookmark-test-bmenu-mark-all): New
  function to test `bookmark-bmenu-mark-all'.
* test/lisp/bookmark-tests.el (bookmark-test-bmenu-unmark-all): New
  function to test `bookmark-bmenu-unmark-all'.
* test/lisp/bookmark-tests.el (bookmark-test-bmenu-delete-all): New
  function to test `bookmark-bmenu-delete-all'.
---
 lisp/bookmark.el                           |  79 ++++++++-
 test/lisp/bookmark-resources/test-list.bmk |  20 +++
 test/lisp/bookmark-tests.el                | 183 +++++++++++++++++++++
 3 files changed, 280 insertions(+), 2 deletions(-)
 create mode 100644 test/lisp/bookmark-resources/test-list.bmk

diff --git a/lisp/bookmark.el b/lisp/bookmark.el
index de7d60f97e..8a9c032930 100644
--- a/lisp/bookmark.el
+++ b/lisp/bookmark.el
@@ -200,6 +200,7 @@ A non-nil value may result in truncated bookmark names."
     (define-key map "f" 'bookmark-insert-location) ;"f"ind
     (define-key map "r" 'bookmark-rename)
     (define-key map "d" 'bookmark-delete)
+    (define-key map "D" 'bookmark-delete-all)
     (define-key map "l" 'bookmark-load)
     (define-key map "w" 'bookmark-write)
     (define-key map "s" 'bookmark-save)
@@ -1374,6 +1375,21 @@ probably because we were called from there."
     (bookmark-save)))
 
 
+;;;###autoload
+(defun bookmark-delete-all (&optional arg)
+  "Delete all bookmarks permanently.
+Doesn't ask for confirmation if ARG is non-nil."
+  (interactive "P")
+  (when (or arg (yes-or-no-p "Delete all bookmarks permanently? "))
+    (bookmark-maybe-load-default-file)
+    (setq bookmark-alist-modification-count
+          (+ bookmark-alist-modification-count (length bookmark-alist)))
+    (setq bookmark-alist nil)
+    (bookmark-bmenu-surreptitiously-rebuild-list)
+    (when (bookmark-time-to-save-p)
+      (bookmark-save))))
+
+
 (defun bookmark-time-to-save-p (&optional final-time)
   "Return t if it is time to save bookmarks to disk, nil otherwise.
 Optional argument FINAL-TIME means this is being called when Emacs
@@ -1600,12 +1616,15 @@ unique numeric suffixes \"<2>\", \"<3>\", etc."
     (define-key map "\C-d" 'bookmark-bmenu-delete-backwards)
     (define-key map "x" 'bookmark-bmenu-execute-deletions)
     (define-key map "d" 'bookmark-bmenu-delete)
+    (define-key map "D" 'bookmark-bmenu-delete-all)
     (define-key map " " 'next-line)
     (define-key map "n" 'next-line)
     (define-key map "p" 'previous-line)
     (define-key map "\177" 'bookmark-bmenu-backup-unmark)
     (define-key map "u" 'bookmark-bmenu-unmark)
+    (define-key map "U" 'bookmark-bmenu-unmark-all)
     (define-key map "m" 'bookmark-bmenu-mark)
+    (define-key map "M" 'bookmark-bmenu-mark-all)
     (define-key map "l" 'bookmark-bmenu-load)
     (define-key map "r" 'bookmark-bmenu-rename)
     (define-key map "R" 'bookmark-bmenu-relocate)
@@ -1627,8 +1646,10 @@ unique numeric suffixes \"<2>\", \"<3>\", etc."
     ["Select Marked Bookmarks" bookmark-bmenu-select t]
     "---"
     ["Mark Bookmark" bookmark-bmenu-mark t]
+    ["Mark all Bookmarks" bookmark-bmenu-mark-all t]
     ["Unmark Bookmark" bookmark-bmenu-unmark  t]
     ["Unmark Backwards" bookmark-bmenu-backup-unmark  t]
+    ["Unmark all Bookmarks" bookmark-bmenu-unmark-all  t]
     ["Toggle Display of Filenames" bookmark-bmenu-toggle-filenames  t]
     ["Display Location of Bookmark" bookmark-bmenu-locate  t]
     "---"
@@ -1636,6 +1657,7 @@ unique numeric suffixes \"<2>\", \"<3>\", etc."
      ["Rename Bookmark" bookmark-bmenu-rename  t]
      ["Relocate Bookmark's File" bookmark-bmenu-relocate  t]
      ["Mark Bookmark for Deletion" bookmark-bmenu-delete  t]
+     ["Mark all Bookmarks for Deletion" bookmark-bmenu-delete-all  t]
      ["Delete Marked Bookmarks" bookmark-bmenu-execute-deletions  t])
     ("Annotations"
      ["Show Annotation for Current Bookmark" bookmark-bmenu-show-annotation  t]
@@ -1748,6 +1770,7 @@ Letters do not insert themselves; instead, they are commands.
 Bookmark names preceded by a \"*\" have annotations.
 \\<bookmark-bmenu-mode-map>
 \\[bookmark-bmenu-mark] -- mark bookmark to be displayed.
+\\[bookmark-bmenu-mark-all] -- mark all listed bookmarks to be displayed.
 \\[bookmark-bmenu-select] -- select bookmark of line point is on.
   Also show bookmarks marked using m in other windows.
 \\[bookmark-bmenu-toggle-filenames] -- toggle displaying of filenames (they may obscure long bookmark names).
@@ -1764,13 +1787,15 @@ Bookmark names preceded by a \"*\" have annotations.
 \\[bookmark-bmenu-relocate] -- relocate this bookmark's file (prompts for new file).
 \\[bookmark-bmenu-delete] -- mark this bookmark to be deleted, and move down.
 \\[bookmark-bmenu-delete-backwards] -- mark this bookmark to be deleted, and move up.
-\\[bookmark-bmenu-execute-deletions] -- delete bookmarks marked with `\\[bookmark-bmenu-delete]'.
+\\[bookmark-bmenu-delete-all] -- mark all listed bookmarks as to be deleted.
+\\[bookmark-bmenu-execute-deletions] -- delete bookmarks marked with `\\[bookmark-bmenu-delete]' or `\\[bookmark-bmenu-delete-all]'.
 \\[bookmark-bmenu-save] -- save the current bookmark list in the default file.
   With a prefix arg, prompts for a file to save in.
 \\[bookmark-bmenu-load] -- load in a file of bookmarks (prompts for file.)
 \\[bookmark-bmenu-unmark] -- remove all kinds of marks from current line.
   With prefix argument, also move up one line.
 \\[bookmark-bmenu-backup-unmark] -- back up a line and remove marks.
+\\[bookmark-bmenu-unmark-all] -- remove all kinds of marks from all listed bookmarks.
 \\[bookmark-bmenu-show-annotation] -- show the annotation, if it exists, for the current bookmark
   in another buffer.
 \\[bookmark-bmenu-show-all-annotations] -- show the annotations of all bookmarks in another buffer.
@@ -1937,9 +1962,24 @@ If the annotation does not exist, do nothing."
      (bookmark-bmenu-ensure-position))))
 
 
+(defun bookmark-bmenu-mark-all ()
+  "Mark all listed bookmarks to be displayed by \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-select]."
+  (interactive)
+  (save-excursion
+    (goto-char (point-min))
+    (bookmark-bmenu-ensure-position)
+    (with-buffer-modified-unmodified
+     (let ((inhibit-read-only t))
+       ;; FIXME: This assumes that the last line is empty.
+       (while (not (eobp))
+         (delete-char 1)
+         (insert ?>)
+         (forward-line 1))))))
+
+
 (defun bookmark-bmenu-select ()
   "Select this line's bookmark; also display bookmarks marked with `>'.
-You can mark bookmarks with the \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-mark] command."
+You can mark bookmarks with the \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-mark] or \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-mark-all] commands."
   (interactive)
   (let ((bmrk (bookmark-bmenu-bookmark))
         (menu (current-buffer))
@@ -2108,6 +2148,21 @@ Optional BACKUP means move up."
   (bookmark-bmenu-ensure-position))
 
 
+(defun bookmark-bmenu-unmark-all ()
+  "Cancel all requested operations on all listed bookmarks."
+  (interactive)
+  (save-excursion
+    (goto-char (point-min))
+    (bookmark-bmenu-ensure-position)
+    (with-buffer-modified-unmodified
+     (let ((inhibit-read-only t))
+       ;; FIXME: This assumes that the last line is empty.
+       (while (not (eobp))
+         (delete-char 1)
+         (insert " ")
+         (forward-line 1))))))
+
+
 (defun bookmark-bmenu-delete ()
   "Mark bookmark on this line to be deleted.
 To carry out the deletions that you've marked, use \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-execute-deletions]."
@@ -2133,6 +2188,23 @@ To carry out the deletions that you've marked, use \\<bookmark-bmenu-mode-map>\\
   (bookmark-bmenu-ensure-position))
 
 
+(defun bookmark-bmenu-delete-all ()
+  "Mark all listed bookmarks as to be deleted.
+To remove all deletion marks, use \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-unmark-all].
+To carry out the deletions that you've marked, use \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-execute-deletions]."
+  (interactive)
+  (save-excursion
+    (goto-char (point-min))
+    (bookmark-bmenu-ensure-position)
+    (with-buffer-modified-unmodified
+     (let ((inhibit-read-only t))
+       ;; FIXME: This assumes that the last line is empty.
+       (while (not (eobp))
+         (delete-char 1)
+         (insert ?D)
+         (forward-line 1))))))
+
+
 (defun bookmark-bmenu-execute-deletions ()
   "Delete bookmarks flagged `D'."
   (interactive)
@@ -2292,6 +2364,9 @@ strings returned are not."
     (bindings--define-key map [delete]
       '(menu-item "Delete Bookmark..." bookmark-delete
 		  :help "Delete a bookmark from the bookmark list"))
+    (bindings--define-key map [delete-all]
+      '(menu-item "Delete all Bookmarks..." bookmark-delete-all
+		  :help "Delete all bookmarks from the bookmark list"))
     (bindings--define-key map [rename]
       '(menu-item "Rename Bookmark..." bookmark-rename
 		  :help "Change the name of a bookmark"))
diff --git a/test/lisp/bookmark-resources/test-list.bmk b/test/lisp/bookmark-resources/test-list.bmk
new file mode 100644
index 0000000000..11a5c3f222
--- /dev/null
+++ b/test/lisp/bookmark-resources/test-list.bmk
@@ -0,0 +1,20 @@
+;;;; Emacs Bookmark Format Version 1 ;;;; -*- coding: utf-8-emacs -*-
+;;; This format is meant to be slightly human-readable;
+;;; nevertheless, you probably don't want to edit it.
+;;; -*- End Of Bookmark File Format Version Stamp -*-
+(("name0"
+ (filename . "/some/file0")
+ (front-context-string . "abc")
+ (rear-context-string . "def")
+ (position . 3))
+("name1"
+ (filename . "/some/file1")
+ (front-context-string . "abc")
+ (rear-context-string . "def")
+ (position . 3))
+("name2"
+ (filename . "/some/file2")
+ (front-context-string . "abc")
+ (rear-context-string . "def")
+ (position . 3))
+)
diff --git a/test/lisp/bookmark-tests.el b/test/lisp/bookmark-tests.el
index b9c6ff9c54..3790498812 100644
--- a/test/lisp/bookmark-tests.el
+++ b/test/lisp/bookmark-tests.el
@@ -83,6 +83,70 @@ the lexically-bound variable `buffer'."
           ,@body)
        (kill-buffer buffer))))
 
+(defvar bookmark-tests-bookmark-file-list
+  (expand-file-name "test-list.bmk" bookmark-tests-data-dir)
+  "Bookmark file used for testing a list of bookmarks.")
+
+;; The values below should match `bookmark-tests-bookmark-file-list'
+;; content.  We cache these values to speed up tests.
+(eval-and-compile  ; needed by `with-bookmark-test-list' macro
+  (defvar bookmark-tests-bookmark-list-0 '("name0"
+                            (filename . "/some/file0")
+                            (front-context-string . "ghi")
+                            (rear-context-string . "jkl")
+                            (position . 4))
+    "Cached value used in bookmark-tests.el."))
+
+;; The values below should match `bookmark-tests-bookmark-file-list'
+;; content.  We cache these values to speed up tests.
+(eval-and-compile  ; needed by `with-bookmark-test-list' macro
+  (defvar bookmark-tests-bookmark-list-1 '("name1"
+                            (filename . "/some/file1")
+                            (front-context-string . "mno")
+                            (rear-context-string . "pqr")
+                            (position . 5))
+    "Cached value used in bookmark-tests.el."))
+
+;; The values below should match `bookmark-tests-bookmark-file-list'
+;; content.  We cache these values to speed up tests.
+(eval-and-compile  ; needed by `with-bookmark-test-list' macro
+  (defvar bookmark-tests-bookmark-list-2 '("name2"
+                            (filename . "/some/file2")
+                            (front-context-string . "stu")
+                            (rear-context-string . "vwx")
+                            (position . 6))
+    "Cached value used in bookmark-tests.el."))
+
+(defvar bookmark-tests-cache-timestamp-list
+  (cons bookmark-tests-bookmark-file-list
+        (nth 5 (file-attributes
+                bookmark-tests-bookmark-file-list)))
+  "Cached value used in bookmark-tests.el.")
+
+(defmacro with-bookmark-test-list (&rest body)
+  "Create environment for testing bookmark.el and evaluate BODY.
+Ensure a clean environment for testing, and do not change user
+data when running tests interactively."
+  `(with-temp-buffer
+     (let ((bookmark-alist (quote (,(copy-sequence bookmark-tests-bookmark-list-0)
+                                   ,(copy-sequence bookmark-tests-bookmark-list-1)
+                                   ,(copy-sequence bookmark-tests-bookmark-list-2))))
+           (bookmark-default-file bookmark-tests-bookmark-file-list)
+           (bookmark-bookmarks-timestamp bookmark-tests-cache-timestamp-list)
+           bookmark-save-flag)
+       ,@body)))
+
+(defmacro with-bookmark-test-file-list (&rest body)
+  "Create environment for testing bookmark.el and evaluate BODY.
+Same as `with-bookmark-test-list' but also opens the resource file
+example.txt in a buffer, which can be accessed by callers through
+the lexically-bound variable `buffer'."
+  `(let ((buffer (find-file-noselect bookmark-tests-example-file)))
+     (unwind-protect
+         (with-bookmark-test-list
+          ,@body)
+       (kill-buffer buffer))))
+
 (ert-deftest bookmark-tests-all-names ()
   (with-bookmark-test
    (should (equal (bookmark-all-names) '("name")))))
@@ -95,6 +159,22 @@ the lexically-bound variable `buffer'."
   (with-bookmark-test
    (should (equal (bookmark-get-bookmark-record "name") (cdr bookmark-tests-bookmark)))))
 
+(ert-deftest bookmark-tests-all-names-list ()
+  (with-bookmark-test-list
+   (should (equal (bookmark-all-names) '("name0" "name1" "name2")))))
+
+(ert-deftest bookmark-tests-get-bookmark-list ()
+  (with-bookmark-test-list
+   (should (equal (bookmark-get-bookmark "name0") bookmark-tests-bookmark-list-0))
+   (should (equal (bookmark-get-bookmark "name1") bookmark-tests-bookmark-list-1))
+   (should (equal (bookmark-get-bookmark "name2") bookmark-tests-bookmark-list-2))))
+
+(ert-deftest bookmark-tests-get-bookmark-record-list ()
+  (with-bookmark-test-list
+   (should (equal (bookmark-get-bookmark-record "name0") (cdr bookmark-tests-bookmark-list-0)))
+   (should (equal (bookmark-get-bookmark-record "name1") (cdr bookmark-tests-bookmark-list-1)))
+   (should (equal (bookmark-get-bookmark-record "name2") (cdr bookmark-tests-bookmark-list-2)))))
+
 (ert-deftest bookmark-tests-record-getters-and-setters-new ()
   (with-temp-buffer
     (let* ((buffer-file-name "test")
@@ -130,6 +210,19 @@ the lexically-bound variable `buffer'."
        ;; calling twice gives same record
        (should (equal (bookmark-make-record) record))))))
 
+(ert-deftest bookmark-tests-make-record-list ()
+  (with-bookmark-test-file-list
+   (let* ((record `("example.txt" (filename . ,bookmark-tests-example-file)
+                    (front-context-string . "is text file is ")
+                    (rear-context-string)
+                    (position . 3)
+                    (defaults "example.txt"))))
+     (with-current-buffer buffer
+       (goto-char 3)
+       (should (equal (bookmark-make-record) record))
+       ;; calling twice gives same record
+       (should (equal (bookmark-make-record) record))))))
+
 (ert-deftest bookmark-tests-make-record-function ()
   (with-bookmark-test
    (let ((buffer-file-name "test"))
@@ -267,6 +360,11 @@ the lexically-bound variable `buffer'."
    (bookmark-delete "name")
    (should (equal bookmark-alist nil))))
 
+(ert-deftest bookmark-tests-delete-all ()
+  (with-bookmark-test-list
+   (bookmark-delete-all t)
+   (should (equal bookmark-alist nil))))
+
 (defmacro with-bookmark-test-save-load (&rest body)
   "Create environment for testing bookmark.el and evaluate BODY.
 Same as `with-bookmark-test' but also sets a temporary
@@ -340,6 +438,18 @@ testing `bookmark-bmenu-list'."
             ,@body)
         (kill-buffer bookmark-bmenu-buffer)))))
 
+(defmacro with-bookmark-bmenu-test-list (&rest body)
+  "Create environment for testing `bookmark-bmenu-list' and evaluate BODY.
+Same as `with-bookmark-test-list' but with additions suitable for
+testing `bookmark-bmenu-list'."
+  `(with-bookmark-test-list
+    (let ((bookmark-bmenu-buffer "*Bookmark List - Testing*"))
+      (unwind-protect
+          (save-window-excursion
+            (bookmark-bmenu-list)
+            ,@body)
+        (kill-buffer bookmark-bmenu-buffer)))))
+
 (ert-deftest bookmark-test-bmenu-edit-annotation/show-annotation ()
   (with-bookmark-bmenu-test
    (bookmark-set-annotation "name" "foo")
@@ -396,6 +506,28 @@ testing `bookmark-bmenu-list'."
    (beginning-of-line)
    (should (looking-at "^>"))))
 
+(ert-deftest bookmark-test-bmenu-mark-all ()
+  (with-bookmark-bmenu-test-list
+   (let ((here (point-max)))
+     ;; Expect to not move the point
+     (goto-char here)
+     (bookmark-bmenu-mark-all)
+     (should (equal here (point)))
+     ;; Verify that all bookmarks are marked
+     (goto-char (point-min))
+     (bookmark-bmenu-ensure-position)
+     (should (looking-at "^> "))
+     (should (equal bookmark-tests-bookmark-list-0
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     (forward-line 1)
+     (should (looking-at "^> "))
+     (should (equal bookmark-tests-bookmark-list-1
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     (forward-line 1)
+     (should (looking-at "^> "))
+     (should (equal bookmark-tests-bookmark-list-2
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark)))))))
+
 (ert-deftest bookmark-test-bmenu-any-marks ()
   (with-bookmark-bmenu-test
    (bookmark-bmenu-mark)
@@ -410,12 +542,63 @@ testing `bookmark-bmenu-list'."
    (beginning-of-line)
    (should (looking-at "^  "))))
 
+(ert-deftest bookmark-test-bmenu-unmark-all ()
+  (with-bookmark-bmenu-test-list
+   (bookmark-bmenu-mark-all)
+   (let ((here (point-max)))
+     ;; Expect to not move the point
+     (goto-char here)
+     (bookmark-bmenu-unmark-all)
+     (should (equal here (point)))
+     ;; Verify that all bookmarks are unmarked
+     (goto-char (point-min))
+     (bookmark-bmenu-ensure-position)
+     (should (looking-at "^  "))
+     (should (equal bookmark-tests-bookmark-list-0
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     (forward-line 1)
+     (should (looking-at "^  "))
+     (should (equal bookmark-tests-bookmark-list-1
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     (forward-line 1)
+     (should (looking-at "^  "))
+     (should (equal bookmark-tests-bookmark-list-2
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark)))))))
+
 (ert-deftest bookmark-test-bmenu-delete ()
   (with-bookmark-bmenu-test
    (bookmark-bmenu-delete)
    (bookmark-bmenu-execute-deletions)
    (should (equal (length bookmark-alist) 0))))
 
+(ert-deftest bookmark-test-bmenu-delete-all ()
+  (with-bookmark-bmenu-test-list
+   ;; Verify that unmarked bookmarks aren't deleted
+   (bookmark-bmenu-execute-deletions)
+   (should-not (eq bookmark-alist nil))
+   (let ((here (point-max)))
+     ;; Expect to not move the point
+     (goto-char here)
+     (bookmark-bmenu-delete-all)
+     (should (equal here (point)))
+     ;; Verify that all bookmarks are marked for deletion
+     (goto-char (point-min))
+     (bookmark-bmenu-ensure-position)
+     (should (looking-at "^D "))
+     (should (equal bookmark-tests-bookmark-list-0
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     (forward-line 1)
+     (should (looking-at "^D "))
+     (should (equal bookmark-tests-bookmark-list-1
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     (forward-line 1)
+     (should (looking-at "^D "))
+     (should (equal bookmark-tests-bookmark-list-2
+                    (bookmark-get-bookmark (bookmark-bmenu-bookmark))))
+     ;; Verify that all bookmarks are deleted
+     (bookmark-bmenu-execute-deletions)
+     (should (eq bookmark-alist nil)))))
+
 (ert-deftest bookmark-test-bmenu-locate ()
   (let (msg)
     (cl-letf (((symbol-function 'message)
-- 
2.26.2


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