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diff --git a/lang/qt/tests/t-wkdlookup.cpp b/lang/qt/tests/t-wkdlookup.cpp
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+/* t-wkdlookup.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2021 g10 Code GmbH
+    Software engineering by Ingo Klöcker <[email protected]>
+
+    QGpgME 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 2 of the
+    License, or (at your option) any later version.
+
+    QGpgME 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 this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+#ifdef HAVE_CONFIG_H
+ #include "config.h"
+#endif
+
+#include "t-support.h"
+
+#include "data.h"
+#include "engineinfo.h"
+#include "protocol.h"
+#include "wkdlookupjob.h"
+#include "wkdlookupresult.h"
+
+#include <QDebug>
+#include <QSignalSpy>
+#include <QTest>
+
+#include <algorithm>
+
+using namespace QGpgME;
+using namespace GpgME;
+
+static const char *requiredVersion = "2.1.12";
+
+namespace
+{
+bool keyHasUserIDWithMatchingEmailAddress(const Key &key, const QString &expectedEmailAddress)
+{
+    const auto email = expectedEmailAddress.toLower();
+    const auto userIds = key.userIDs();
+    return std::any_of(
+        std::begin(userIds), std::end(userIds),
+        [email](const UserID &uid) {
+            return email == QString::fromUtf8(uid.email()).toLower();
+        });
+}
+}
+
+class WKDLookupTest : public QGpgMETest
+{
+    Q_OBJECT
+
+Q_SIGNALS:
+    void asyncDone();
+
+private Q_SLOTS:
+
+#ifndef DO_ONLINE_TESTS
+    void testWKDLookupAsync()
+    {
+        if (GpgME::engineInfo(GpgME::GpgEngine).engineVersion() < requiredVersion) {
+            QSKIP("dirmngr does not yet support WKD lookup");
+        }
+        const QString email = QLatin1String{"[email protected]"};
+
+        WKDLookupResult result;
+        auto *job = openpgp()->wkdLookupJob();
+        connect(job, &WKDLookupJob::result, job, [this, &result](const WKDLookupResult &result_, const QString &, const Error &)
+        {
+            result = result_;
+            Q_EMIT asyncDone();
+        });
+        job->start(email);
+        QSignalSpy spy (this, SIGNAL(asyncDone()));
+        QVERIFY(spy.wait(QSIGNALSPY_TIMEOUT));
+
+        QVERIFY(result.error().code() == GPG_ERR_NO_ERROR);
+        QCOMPARE(result.source(), "https://openpgpkey.gnupg.org");
+        const auto keys = result.keyData().toKeys(GpgME::OpenPGP);
+        QVERIFY(keys.size() == 1);
+        QVERIFY(keyHasUserIDWithMatchingEmailAddress(keys.front(), email));
+    }
+
+    void testWKDLookupSync()
+    {
+        if (GpgME::engineInfo(GpgME::GpgEngine).engineVersion() < requiredVersion) {
+            QSKIP("dirmngr does not yet support WKD lookup");
+        }
+        const QString email = QLatin1String{"[email protected]"};
+
+        auto *job = openpgp()->wkdLookupJob();
+        const auto result = job->exec(email);
+
+        QVERIFY(result.error().code() == GPG_ERR_NO_ERROR);
+        QCOMPARE(result.source(), "https://openpgpkey.gnupg.org");
+        const auto keys = result.keyData().toKeys(GpgME::OpenPGP);
+        QVERIFY(keys.size() == 1);
+        QVERIFY(keyHasUserIDWithMatchingEmailAddress(keys.front(), email));
+    }
+
+    void testLookupWithNoResultAsync()
+    {
+        if (GpgME::engineInfo(GpgME::GpgEngine).engineVersion() < requiredVersion) {
+            QSKIP("dirmngr does not yet support WKD lookup");
+        }
+        const QString email = QLatin1String{"[email protected]"};
+
+        WKDLookupResult result;
+        auto *job = openpgp()->wkdLookupJob();
+        connect(job, &WKDLookupJob::result, job, [this, &result](const WKDLookupResult &result_, const QString &, const Error &)
+        {
+            result = result_;
+            Q_EMIT asyncDone();
+        });
+        job->start(email);
+        QSignalSpy spy (this, SIGNAL(asyncDone()));
+        QVERIFY(spy.wait(QSIGNALSPY_TIMEOUT));
+
+        QVERIFY(result.error().code() == GPG_ERR_NO_ERROR);
+        QCOMPARE(result.source(), "");
+        QVERIFY(result.keyData().isNull());
+    }
+#endif
+};
+
+QTEST_MAIN(WKDLookupTest)
+
+#include "t-wkdlookup.moc"