TestApproximation.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_TEST_TESTMATH_APPROXIMATION_H
#define META_OCEAN_TEST_TESTMATH_APPROXIMATION_H
 
#include "ocean/test/testmath/TestMath.h"
 
#include "ocean/test/TestSelector.h"
 
namespace Ocean
{
 
namespace Test
{
 
namespace TestMath
{
 
/**
 * This class implements a test of the approximation functions.
 * @ingroup testmath
 */
class OCEAN_TEST_MATH_EXPORT TestApproximation
{
    public:
 
        /**
         * Tests all approximation functions.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @param selector The test selector
         * @return True, if succeeded
         */
        static bool test(const double testDuration, const TestSelector& selector);
 
        /**
         * Tests the sqrt function for 8 bit integer values.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testSqrt8(const double testDuration);
 
        /**
         * Tests the sqrt function for 16 bit integer values.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testSqrt16(const double testDuration);
 
        /**
         * Tests the sqrt function for 17 bit integer values.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testSqrt17(const double testDuration);
 
        /**
         * Tests the arc tangent function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool testAtan2(const double testDuration);
 
        /**
         * Tests the exponential function exp(x) = e^x.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         * @tparam T The data type of the value
         * @tparam tHigherAccuracy True, to test the higer accuracy; False, to test the lower accuracy
         */
        template <typename T, bool tHigherAccuracy>
        static bool testExp(const double testDuration);
 
    private:
 
        /**
         * Validates the arc tangent function.
         * @param testDuration Number of seconds for each test, with range (0, infinity)
         * @return True, if succeeded
         */
        static bool validateAtan2(const double testDuration);
};
 
}
 
}
 
}
 
#endif // META_OCEAN_TEST_TESTMATH_APPROXIMATION_H