Check in tramp-tests.el, that environment variables are set correctly

* test/lisp/net/tramp-tests.el (tramp--test-check-files):
Check also, that environment variables are set correctly.

diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index e80af4222446cdc4301eee75b3139b47d2bb46f1..893dc543f3ede13224215a7594e71a23bef82952 100644 (file)
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -2283,7 +2283,34 @@ Several special characters do not work properly there."
                (delete-file file2)
                (should-not (file-exists-p file2))
                (delete-directory file1)
-               (should-not (file-exists-p file1)))))
+               (should-not (file-exists-p file1))))
+
+           ;; Check, that environment variables are set correctly.
+           (when (and tramp--test-expensive-test (tramp--test-sh-p))
+             (dolist (elt files)
+               ;; Tramp does not support environment variables with
+               ;; leading or trailing spaces.  It also does not
+               ;; support the tab character.
+               (setq elt (replace-regexp-in-string "\t" " " elt)
+                     elt (replace-regexp-in-string "^\\s-+\\|\\s-+$" "" elt))
+               (let* ((default-directory tramp-test-temporary-file-directory)
+                      (shell-file-name "/bin/sh")
+                      (envvar
+                       (concat "VAR_" (upcase (md5 (current-time-string)))))
+                      (tramp-remote-process-environment
+                       (cons
+                        (format "%s=%s" envvar elt)
+                        tramp-remote-process-environment)))
+                 ;; We force a reconnect, in order to have a clean
+                 ;; environment.
+                 (tramp-cleanup-connection
+                  (tramp-dissect-file-name tramp-test-temporary-file-directory)
+                  'keep-debug 'keep-password)
+                 (should
+                  (string-equal
+                   elt
+                   (shell-command-to-string
+                    (format "echo -n $%s" envvar))))))))
 
        ;; Cleanup.
        (ignore-errors (delete-directory tmp-name1 'recursive))