Imported WebKit commit 68645295d2e3e09af2c942f092556f06aa5f8b0d (http://svn.webkit.org/repository/webkit/trunk@128073)

New snapshot

1 files changed, 53 insertions, 0 deletions

diff --git a/Tools/TestWebKitAPI/Tests/WTF/MathExtras.cpp b/Tools/TestWebKitAPI/Tests/WTF/MathExtras.cpp
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+++ b/Tools/TestWebKitAPI/Tests/WTF/MathExtras.cpp
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+/*
+ * Copyright (C) 2012 Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <wtf/MathExtras.h>
+
+namespace TestWebKitAPI {
+
+TEST(WTF, Lrint)
+{
+    EXPECT_EQ(lrint(-7.5), -8);
+    EXPECT_EQ(lrint(-8.5), -8);
+    EXPECT_EQ(lrint(-0.5), 0);
+    EXPECT_EQ(lrint(0.5), 0);
+    EXPECT_EQ(lrint(-0.5), 0);
+    EXPECT_EQ(lrint(1.3), 1);
+    EXPECT_EQ(lrint(1.7), 2);
+    EXPECT_EQ(lrint(0), 0);
+    EXPECT_EQ(lrint(-0), 0);
+    if (sizeof(long int) == 8) {
+        // Largest double number with 0.5 precision and one halfway rounding case below.
+        EXPECT_EQ(lrint(pow(2.0, 52) - 0.5), pow(2.0, 52));
+        EXPECT_EQ(lrint(pow(2.0, 52) - 1.5), pow(2.0, 52) - 2);
+        // Smallest double number with 0.5 precision and one halfway rounding case above.
+        EXPECT_EQ(lrint(-pow(2.0, 52) + 0.5), -pow(2.0, 52));
+        EXPECT_EQ(lrint(-pow(2.0, 52) + 1.5), -pow(2.0, 52) + 2);
+    }
+}
+
+} // namespace TestWebKitAPI