1 files changed, 98 insertions, 0 deletions
diff --git a/tools/qa/cppunit/test_minmax.cxx b/tools/qa/cppunit/test_minmax.cxx
new file mode 100644
index 000000000..509499910
--- /dev/null
+++ b/tools/qa/cppunit/test_minmax.cxx
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/types.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <tools/helpers.hxx>
+
+namespace tools
+{
+class MinMaxTest : public CppUnit::TestFixture
+{
+public:
+    void testSignedMinMax()
+    {
+        sal_Int32 nSignedVal = -10;
+        tools::Long nMin = 1;
+        tools::Long nMax = 10;
+        CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(nMin),
+                             static_cast<sal_Int32>(MinMax(nSignedVal, nMin, nMax)));
+
+        nSignedVal = -10;
+        nMin = -15;
+        nMax = 10;
+        CPPUNIT_ASSERT_EQUAL(nSignedVal, static_cast<sal_Int32>(MinMax(nSignedVal, nMin, nMax)));
+
+        nSignedVal = -15;
+        nMin = -15;
+        nMax = 10;
+        CPPUNIT_ASSERT_EQUAL(nSignedVal, static_cast<sal_Int32>(MinMax(nSignedVal, nMin, nMax)));
+    }
+
+    void testUnsignedMinMax()
+    {
+        sal_uInt32 nUnsignedVal = 5;
+        tools::Long nMin = 1;
+        tools::Long nMax = 10;
+        CPPUNIT_ASSERT_EQUAL(nUnsignedVal,
+                             static_cast<sal_uInt32>(MinMax(nUnsignedVal, nMin, nMax)));
+
+        nUnsignedVal = 5;
+        nMin = 1;
+        nMax = 5;
+        CPPUNIT_ASSERT_EQUAL(nUnsignedVal,
+                             static_cast<sal_uInt32>(MinMax(nUnsignedVal, nMin, nMax)));
+
+        nUnsignedVal = 5;
+        nMin = 5;
+        nMax = 5;
+        CPPUNIT_ASSERT_EQUAL(nUnsignedVal,
+                             static_cast<sal_uInt32>(MinMax(nUnsignedVal, nMin, nMax)));
+
+        nUnsignedVal = 10;
+        nMin = -20;
+        nMax = 15;
+        CPPUNIT_ASSERT_EQUAL(nUnsignedVal,
+                             static_cast<sal_uInt32>(MinMax(nUnsignedVal, nMin, nMax)));
+
+        nUnsignedVal = 20;
+        nMin = 10;
+        nMax = 15;
+        CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt32>(nMax),
+                             static_cast<sal_uInt32>(MinMax(nUnsignedVal, nMin, nMax)));
+
+        nUnsignedVal = 5;
+        nMin = 10;
+        nMax = 15; // irrelevant, but cannot be less than nMin
+        CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt32>(nMin),
+                             static_cast<sal_uInt32>(MinMax(nUnsignedVal, nMin, nMax)));
+    }
+
+    CPPUNIT_TEST_SUITE(MinMaxTest);
+    CPPUNIT_TEST(testSignedMinMax);
+    CPPUNIT_TEST(testUnsignedMinMax);
+    CPPUNIT_TEST_SUITE_END();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(MinMaxTest);
+} // namespace tools
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */