Add a testlib selftest for the watchdog

Verify that it does cut in after the specified time has elapsed.

Task-number: QTPM-1385
Change-Id: Ib18e8d6af28339f79cca4d62b869287ce07b8cc1
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>

2 files changed, 65 insertions, 0 deletions

diff --git a/tests/auto/testlib/selftests/watchdog/tst_watchdog.cpp b/tests/auto/testlib/selftests/watchdog/tst_watchdog.cpp
new file mode 100644
index 0000000000..2f29609f71
--- /dev/null
+++ b/tests/auto/testlib/selftests/watchdog/tst_watchdog.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+
+class tst_Watchdog : public QObject
+{
+    Q_OBJECT
+private slots:
+    void delay() const;
+};
+
+void tst_Watchdog::delay() const
+{
+    bool ok = false;
+    const int fiveMinutes = 5 * 60 * 1000;
+    // Use the same env.var as the watch-dog and add a little to it:
+    const int timeout = qEnvironmentVariableIntValue("QTEST_FUNCTION_TIMEOUT", &ok);
+    QTest::qSleep(5000 + (ok && timeout > 0 ? timeout : fiveMinutes));
+    // The watchdog timer should have interrupted us by now.
+    QFAIL("ERROR: this function should be interrupted.");
+}
+
+QTEST_APPLESS_MAIN(tst_Watchdog)
+
+#include "tst_watchdog.moc"
diff --git a/tests/auto/testlib/selftests/watchdog/watchdog.pro b/tests/auto/testlib/selftests/watchdog/watchdog.pro
new file mode 100644
index 0000000000..ddcc3f6ca2
--- /dev/null
+++ b/tests/auto/testlib/selftests/watchdog/watchdog.pro
@@ -0,0 +1,14 @@
+SOURCES += tst_watchdog.cpp
+QT = core testlib
+
+darwin: CONFIG -= app_bundle
+CONFIG -= debug_and_release_target
+
+TARGET = watchdog
+
+# The test deliberately times out; so tell it to do so quickly
+checkenv.name = QTEST_FUNCTION_TIMEOUT
+checkenv.value = 100
+QT_TOOL_ENV += checkenv
+
+include($$QT_SOURCE_TREE/src/testlib/selfcover.pri)