bug#42095: 28.0.50; Build fails on Windows/MinGW64

[Paul Eggert <eggert@cs.ucla.edu>]

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On 6/29/20 7:52 AM, Eli Zaretskii wrote:
> I meant to make sure it works when invoked from Emacs.

I added the attached.

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From d0872638b4f6330bdece465d6cbf5c1d85306c35 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 29 Jun 2020 09:54:45 -0700
Subject: [PATCH] * test/src/fns-tests.el (test-secure-hash): Test getrandom
 format.

---
 test/src/fns-tests.el | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/test/src/fns-tests.el b/test/src/fns-tests.el
index b65543a64b..f1faf58659 100644
--- a/test/src/fns-tests.el
+++ b/test/src/fns-tests.el
@@ -890,6 +890,8 @@ test-secure-hash
   (should (equal (secure-hash 'sha512 "foobar")
                  (concat "0a50261ebd1a390fed2bf326f2673c145582a6342d5"
                          "23204973d0219337f81616a8069b012587cf5635f69"
-                         "25f1b56c360230c19b273500ee013e030601bf2425"))))
-
-(provide 'fns-tests)
+                         "25f1b56c360230c19b273500ee013e030601bf2425")))
+  ;; Test that a call to getrandom returns the right format.
+  ;; This does not test randomness; it's merely a format check.
+  (should (string-match "\\`[0-9a-f]\\{128\\}\\'"
+                        (secure-hash 'sha512 'iv-auto 100))))
-- 
2.17.1