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diff --git a/test/lisp/epg-config-tests.el b/test/lisp/epg-config-tests.el
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+++ b/test/lisp/epg-config-tests.el
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+;;; epg-config-tests.el --- Test suite for epg.el  -*- lexical-binding: t -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'ert)
+(require 'epg-config)
+
+(ert-deftest epg-config-test-epg-find-configuration ()
+  (skip-unless (executable-find "gpg2"))
+  (should (assq 'version (epg-find-configuration 'OpenPGP))))
+
+(ert-deftest epg-config-test-epg-find-configuration/unknown-protocol ()
+  (should-error (epg-find-configuration 'does-not-exist)))
+
+(ert-deftest epg-config-test-epg-check-configuration ()
+  (should (epg-check-configuration '((version . "1.0")) "0.9"))
+  (should (epg-check-configuration '((version . "1.0")) "1.0"))
+  (should-error (epg-check-configuration '((version . "1.0")) "1.1"))
+  (should-error (epg-check-configuration '((version . "1.0")) 'foo))
+  (should-error (epg-check-configuration '((version . "1.0")) "foo")))
+
+(ert-deftest epg-config-test-epg-required-version-p ()
+  (skip-unless (executable-find "gpg2"))
+  (should (epg-required-version-p 'OpenPGP "1.0")))
+
+(provide 'epg-config-tests)
+
+;;; epg-config-tests.el ends here