Suppress compiler warnings for older Emacsen in tramp-tests.el

* test/lisp/net/tramp-tests.el (tramp-test17-insert-directory):
Add error name to test.
(tramp-test30-make-process, tramp-test45-unload):
Suppress compiler warnings from older Emacsen.

diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index 75c7ac6ca4a2f01b5b067c639fc33ed783d28f65..5fc37c1934fa47864c7b2c6c67850c2d5a777f2b 100644 (file)
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -2794,7 +2794,9 @@ This tests also `file-directory-p' and `file-accessible-directory-p'."
            ;; returns `file-missing'.
            (delete-directory tmp-name1 'recursive)
            (with-temp-buffer
-             (should-error (insert-directory tmp-name1 nil))))
+             (should-error
+              (insert-directory tmp-name1 nil)
+              :type tramp-file-missing)))
 
        ;; Cleanup.
        (ignore-errors (delete-directory tmp-name1 'recursive))))))
@@ -3962,7 +3964,8 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
   :tags '(:expensive-test)
   (skip-unless (tramp--test-enabled))
   (skip-unless (or (tramp--test-adb-p) (tramp--test-sh-p)))
-  ;; `make-process' supports file name handlers since Emacs 27.
+  ;; `make-process' has been inserted in Emacs 25.1.  It supports file
+  ;; name handlers since Emacs 27.
   (skip-unless (tramp--test-emacs27-p))
 
   (tramp--test-instrument-test-case 0
@@ -3970,15 +3973,16 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
     (let ((default-directory tramp-test-temporary-file-directory)
          (tmp-name (tramp--test-make-temp-name nil quoted))
          kill-buffer-query-functions proc)
-      (should-not (make-process))
+      (should-not (with-no-warnings (make-process)))
 
       ;; Simple process.
       (unwind-protect
          (with-temp-buffer
            (setq proc
-                 (make-process
-                  :name "test1" :buffer (current-buffer) :command '("cat")
-                  :file-handler t))
+                 (with-no-warnings
+                   (make-process
+                    :name "test1" :buffer (current-buffer) :command '("cat")
+                    :file-handler t)))
            (should (processp proc))
            (should (equal (process-status proc) 'run))
            (process-send-string proc "foo")
@@ -4000,10 +4004,11 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
            (write-region "foo" nil tmp-name)
            (should (file-exists-p tmp-name))
            (setq proc
-                 (make-process
-                  :name "test2" :buffer (current-buffer)
-                  :command `("cat" ,(file-name-nondirectory tmp-name))
-                  :file-handler t))
+                 (with-no-warnings
+                   (make-process
+                    :name "test2" :buffer (current-buffer)
+                    :command `("cat" ,(file-name-nondirectory tmp-name))
+                    :file-handler t)))
            (should (processp proc))
            ;; Read output.
            (with-timeout (10 (tramp--test-timeout-handler))
@@ -4020,12 +4025,13 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
       (unwind-protect
          (with-temp-buffer
            (setq proc
-                 (make-process
-                  :name "test3" :buffer (current-buffer) :command '("cat")
-                  :filter
-                  (lambda (p s)
-                    (with-current-buffer (process-buffer p) (insert s)))
-                  :file-handler t))
+                 (with-no-warnings
+                   (make-process
+                    :name "test3" :buffer (current-buffer) :command '("cat")
+                    :filter
+                    (lambda (p s)
+                      (with-current-buffer (process-buffer p) (insert s)))
+                    :file-handler t)))
            (should (processp proc))
            (should (equal (process-status proc) 'run))
            (process-send-string proc "foo")
@@ -4045,12 +4051,13 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
       (unwind-protect
          (with-temp-buffer
            (setq proc
-                 (make-process
-                  :name "test4" :buffer (current-buffer) :command '("cat")
-                  :sentinel
-                  (lambda (p s)
-                    (with-current-buffer (process-buffer p) (insert s)))
-                  :file-handler t))
+                 (with-no-warnings
+                   (make-process
+                    :name "test4" :buffer (current-buffer) :command '("cat")
+                    :sentinel
+                    (lambda (p s)
+                      (with-current-buffer (process-buffer p) (insert s)))
+                    :file-handler t)))
            (should (processp proc))
            (should (equal (process-status proc) 'run))
            (process-send-string proc "foo")
@@ -4073,11 +4080,12 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
          (unwind-protect
              (with-temp-buffer
                (setq proc
-                     (make-process
-                      :name "test5" :buffer (current-buffer)
-                      :command '("cat" "/")
-                      :stderr stderr
-                      :file-handler t))
+                     (with-no-warnings
+                       (make-process
+                        :name "test5" :buffer (current-buffer)
+                        :command '("cat" "/")
+                        :stderr stderr
+                        :file-handler t)))
                (should (processp proc))
                ;; Read stderr.
                (with-current-buffer stderr
@@ -5755,7 +5763,7 @@ Since it unloads Tramp, it shall be the last test to run."
          (ert-fail (format "`%s' still bound" x)))))
   ;; The defstruct `tramp-file-name' and all its internal functions
   ;; shall be purged.
-  (should-not (cl--find-class 'tramp-file-name))
+  (should-not (with-no-warnings (cl--find-class 'tramp-file-name)))
   (mapatoms
    (lambda (x)
      (and (functionp x)