57 lines
1.0 KiB
C++
57 lines
1.0 KiB
C++
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// Copyright 2014 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <cmath>
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#include <gtest/gtest.h>
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#include "Common/MathUtil.h"
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template <typename T>
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T ClampAndReturn(const T& val, const T& min, const T& max)
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{
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T ret = val;
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MathUtil::Clamp(&ret, min, max);
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return ret;
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}
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TEST(MathUtil, Clamp)
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{
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EXPECT_EQ(1, ClampAndReturn(1, 0, 2));
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EXPECT_EQ(1.0, ClampAndReturn(1.0, 0.0, 2.0));
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EXPECT_EQ(2, ClampAndReturn(4, 0, 2));
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EXPECT_EQ(2.0, ClampAndReturn(4.0, 0.0, 2.0));
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EXPECT_EQ(0, ClampAndReturn(-1, 0, 2));
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EXPECT_EQ(0.0, ClampAndReturn(-1.0, 0.0, 2.0));
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}
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TEST(MathUtil, IsNAN)
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{
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EXPECT_TRUE(MathUtil::IsNAN(nan("")));
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}
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TEST(MathUtil, IsQNAN)
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{
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// TODO
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}
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TEST(MathUtil, IsSNAN)
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{
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// TODO
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}
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TEST(MathUtil, Log2)
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{
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EXPECT_EQ(0, Log2(1));
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EXPECT_EQ(1, Log2(2));
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EXPECT_EQ(2, Log2(4));
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EXPECT_EQ(3, Log2(8));
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EXPECT_EQ(63, Log2(0x8000000000000000ull));
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// Rounding behavior.
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EXPECT_EQ(3, Log2(15));
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EXPECT_EQ(63, Log2(0xFFFFFFFFFFFFFFFFull));
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}
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