Don't mutate constants in tests

* test/lisp/emacs-lisp/cl-macs-tests.el
(cl-macs-test--symbol-macrolet):
* test/lisp/emacs-lisp/cl-print-tests.el
(cl-print-tests-ellipsis-circular):
* test/lisp/emacs-lisp/eieio-tests/eieio-test-persist.el
(eieio-test-persist-interior-lists):
* test/lisp/textmodes/reftex-tests.el (reftex-all-used-citation-keys):
* test/src/xdisp-tests.el (xdisp-tests--minibuffer-resizing):
* test/src/fns-tests.el (test-vector-delete):
Mutate created objects, not constants.

* test/lisp/emacs-lisp/subr-x-tests.el
(subr-x-test-add-display-text-property): Mutate a created string, and
compare using `equal-including-properties` without which the test was
rather meaningless.

* test/lisp/net/tramp-archive-tests.el
(tramp-archive-test16-directory-files): Don't mutate.

8 files changed, 19 insertions, 17 deletions

diff --git a/test/lisp/emacs-lisp/cl-macs-tests.el b/test/lisp/emacs-lisp/cl-macs-tests.el
index a9ec0b76ae8..a4bc8d542d4 100644
--- a/test/lisp/emacs-lisp/cl-macs-tests.el
+++ b/test/lisp/emacs-lisp/cl-macs-tests.el
@@ -535,7 +535,7 @@ collection clause."
    (eval '(let ((l (list 1))) (cl-symbol-macrolet ((x 1)) (setq (car l) 0))) t))
   ;; Make sure `gv-synthetic-place' isn't macro-expanded before `setf' gets to
   ;; see its `gv-expander'.
-  (should (equal (let ((l '(0)))
+  (should (equal (let ((l (list 0)))
                    (let ((cl (car l)))
                      (cl-symbol-macrolet
                          ((p (gv-synthetic-place cl (lambda (v) `(setcar l ,v)))))
diff --git a/test/lisp/emacs-lisp/cl-print-tests.el b/test/lisp/emacs-lisp/cl-print-tests.el
index 7161035d75a..af94dae310c 100644
--- a/test/lisp/emacs-lisp/cl-print-tests.el
+++ b/test/lisp/emacs-lisp/cl-print-tests.el
@@ -90,7 +90,7 @@
 (ert-deftest cl-print-tests-ellipsis-circular ()
   "Ellipsis expansion works with circular objects."
   (let ((wide-obj (list 0 1 2 3 4))
-        (deep-obj `(0 (1 (2 (3 (4))))))
+        (deep-obj (list 0 (list 1 (list 2 (list 3 (list 4))))))
         (print-length 4)
         (print-level 3))
     (setf (nth 4 wide-obj) wide-obj)
diff --git a/test/lisp/emacs-lisp/eieio-tests/eieio-test-persist.el b/test/lisp/emacs-lisp/eieio-tests/eieio-test-persist.el
index 4feaebed452..4e5d2f36cf8 100644
--- a/test/lisp/emacs-lisp/eieio-tests/eieio-test-persist.el
+++ b/test/lisp/emacs-lisp/eieio-tests/eieio-test-persist.el
@@ -329,8 +329,8 @@ persistent class.")
                                "container-" emacs-version ".eieio")))
          (john (make-instance 'person :name "John"))
          (alexie (make-instance 'person :name "Alexie"))
-         (alst '(("first" (one two three))
-                 ("second" (four five six)))))
+         (alst (list (list "first" (list 'one 'two 'three))
+                     (list "second" (list 'four 'five 'six)))))
     (setf (slot-value thing 'alist) alst)
     (puthash "alst" alst (slot-value thing 'htab))
     (aset (slot-value thing 'vec) 0 alst)
diff --git a/test/lisp/emacs-lisp/subr-x-tests.el b/test/lisp/emacs-lisp/subr-x-tests.el
index e4c270a114f..63d8fcd080c 100644
--- a/test/lisp/emacs-lisp/subr-x-tests.el
+++ b/test/lisp/emacs-lisp/subr-x-tests.el
@@ -709,14 +709,15 @@
                    [(raise 0.5) (height 2.0)]))
     (should (equal (get-text-property 9 'display) '(raise 0.5))))
   (with-temp-buffer
-    (should (equal (let ((str "some useless string"))
-                     (add-display-text-property 4 8 'height 2.0 str)
-                     (add-display-text-property 2 12 'raise 0.5 str)
-                     str)
-                   #("some useless string"
-                     2 4 (display (raise 0.5))
-                     4 8 (display ((raise 0.5) (height 2.0)))
-                     8 12 (display (raise 0.5)))))))
+    (should (equal-including-properties
+             (let ((str (copy-sequence "some useless string")))
+               (add-display-text-property 4 8 'height 2.0 str)
+               (add-display-text-property 2 12 'raise 0.5 str)
+               str)
+             #("some useless string"
+               2 4 (display (raise 0.5))
+               4 8 (display ((raise 0.5) (height 2.0)))
+               8 12 (display (raise 0.5)))))))
 
 (ert-deftest subr-x-named-let ()
   (let ((funs ()))
diff --git a/test/lisp/net/tramp-archive-tests.el b/test/lisp/net/tramp-archive-tests.el
index 2e2e313f35c..80ec67da8d2 100644
--- a/test/lisp/net/tramp-archive-tests.el
+++ b/test/lisp/net/tramp-archive-tests.el
@@ -587,11 +587,11 @@ This checks also `file-name-as-directory', `file-name-directory',
 			 (mapcar (lambda (x) (concat tmp-name x)) files)))
 	  (should (equal (directory-files
 			  tmp-name nil directory-files-no-dot-files-regexp)
-			 (delete "." (delete ".." files))))
+			 (remove "." (remove ".." files))))
 	  (should (equal (directory-files
 			  tmp-name 'full directory-files-no-dot-files-regexp)
 			 (mapcar (lambda (x) (concat tmp-name x))
-				 (delete "." (delete ".." files))))))
+				 (remove "." (remove ".." files))))))
 
       ;; Cleanup.
       (tramp-archive-cleanup-hash))))
diff --git a/test/lisp/textmodes/reftex-tests.el b/test/lisp/textmodes/reftex-tests.el
index 5a137ba8a67..6aa12bc3b58 100644
--- a/test/lisp/textmodes/reftex-tests.el
+++ b/test/lisp/textmodes/reftex-tests.el
@@ -294,7 +294,8 @@ And this should be % \\cite{ignored}.
       (find-file tex-file)
       (setq keys (reftex-all-used-citation-keys))
       (should (equal (sort keys #'string<)
-                     (sort '(;; Standard commands:
+                     (sort (list
+                             ;; Standard commands:
                              "cite:2022"      "Cite:2022"
                              "parencite:2022" "Parencite:2022"
                              "footcite:2022"  "footcitetext:2022"
diff --git a/test/src/fns-tests.el b/test/src/fns-tests.el
index 2859123da80..79ae4393f40 100644
--- a/test/src/fns-tests.el
+++ b/test/src/fns-tests.el
@@ -1101,7 +1101,7 @@
 
 (ert-deftest test-vector-delete ()
   (let ((v1 (make-vector 1000 1)))
-    (should (equal (delete t [nil t]) [nil]))
+    (should (equal (delete t (vector nil t)) [nil]))
     (should (equal (delete 1 v1) (vector)))
     (should (equal (delete 2 v1) v1))))
 
diff --git a/test/src/xdisp-tests.el b/test/src/xdisp-tests.el
index 52ed79b0f20..dfd38a9d4c1 100644
--- a/test/src/xdisp-tests.el
+++ b/test/src/xdisp-tests.el
@@ -40,7 +40,7 @@
       (insert "hello")
       (let ((ol (make-overlay (point) (point)))
             (max-mini-window-height 1)
-            (text "askdjfhaklsjdfhlkasjdfhklasdhflkasdhflkajsdhflkashdfkljahsdlfkjahsdlfkjhasldkfhalskdjfhalskdfhlaksdhfklasdhflkasdhflkasdhflkajsdhklajsdgh"))
+            (text (copy-sequence "askdjfhaklsjdfhlkasjdfhklasdhflkasdhflkajsdhflkashdfkljahsdlfkjahsdlfkjhasldkfhalskdjfhalskdfhlaksdhfklasdhflkasdhflkasdhflkajsdhklajsdgh")))
         ;; (save-excursion (insert text))
         ;; (sit-for 2)
         ;; (delete-region (point) (point-max))