1 files changed, 100 insertions, 0 deletions
diff --git a/tools/qa/cppunit/test_fract.cxx b/tools/qa/cppunit/test_fract.cxx
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+++ b/tools/qa/cppunit/test_fract.cxx
@@ -0,0 +1,100 @@
+/* -*- 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 <rtl/math.hxx>
+#include <tools/fract.hxx>
+
+namespace tools
+{
+
+class FractionTest : public CppUnit::TestFixture
+{
+public:
+
+    void testFraction()
+    {
+        const Fraction aFract(1082130431,1073741824);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #1 not approximately equal to 1.007812499068677",
+                                rtl::math::approxEqual(static_cast<double>(aFract),1.007812499068677) );
+
+        Fraction aFract2( aFract );
+        aFract2.ReduceInaccurate(8);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #2 not 1",
+                                aFract2.GetNumerator() == 1 &&
+                                aFract2.GetDenominator() == 1 );
+
+        Fraction aFract3( 0x7AAAAAAA, 0x35555555 );
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #3 cancellation wrong",
+                                aFract3.GetNumerator() == 0x7AAAAAAA &&
+                                aFract3.GetDenominator() == 0x35555555 );
+        aFract3.ReduceInaccurate(30);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #3 ReduceInaccurate erroneously cut precision",
+                                aFract3.GetNumerator() == 0x7AAAAAAA &&
+                                aFract3.GetDenominator() == 0x35555555 );
+
+        aFract3.ReduceInaccurate(29);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 29 bits failed",
+                                aFract3.GetNumerator() == 0x3D555555 &&
+                                aFract3.GetDenominator() == 0x1AAAAAAA );
+
+        aFract3.ReduceInaccurate(9);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 9 bits failed",
+                                aFract3.GetNumerator() == 0x0147 &&
+                                aFract3.GetDenominator() == 0x008E );
+
+        aFract3.ReduceInaccurate(1);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 1 bit failed",
+                                aFract3.GetNumerator() == 2 &&
+                                aFract3.GetDenominator() == 1 );
+
+        aFract3.ReduceInaccurate(0);
+        CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 0 bits failed",
+                                aFract3.GetNumerator() == 2 &&
+                                aFract3.GetDenominator() == 1 );
+
+    }
+
+    void testMinLongDouble() {
+        Fraction f(double(SAL_MIN_INT32));
+        CPPUNIT_ASSERT_EQUAL(SAL_MIN_INT32, f.GetNumerator());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(1), f.GetDenominator());
+    }
+
+    void testCreateFromDoubleIn32BitsPlatform() {
+        // This pass in 64 bits but fail in 32 bits
+        Fraction f(0.960945);
+        CPPUNIT_ASSERT_EQUAL(true, f.IsValid());
+    }
+
+    CPPUNIT_TEST_SUITE(FractionTest);
+    CPPUNIT_TEST(testFraction);
+    CPPUNIT_TEST(testMinLongDouble);
+    CPPUNIT_TEST(testCreateFromDoubleIn32BitsPlatform);
+    CPPUNIT_TEST_SUITE_END();
+};
+
+
+CPPUNIT_TEST_SUITE_REGISTRATION(FractionTest);
+} // namespace tools
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */