text: #pragma once
  
  ////////////////////////////////////////////////////////////////////////////////
  // The MIT License (MIT)
  //
  // Copyright (c) 2019 Nicholas Frechette & Realtime Math contributors
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in all
  // copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  // SOFTWARE.
  ////////////////////////////////////////////////////////////////////////////////
  
  #include <catch.hpp>
  
  #include <rtm/vector4f.h>
  #include <rtm/vector4d.h>
  
  using namespace rtm;
  
  template<typename Vector4Type, typename FloatType, mix4 XArg>
  void test_vector_mix_impl(const FloatType threshold)
  {
  	const FloatType test_value0_flt[4] = { FloatType(2.0), FloatType(9.34), FloatType(-54.12), FloatType(6000.0) };
  	const FloatType test_value1_flt[4] = { FloatType(0.75), FloatType(-4.52), FloatType(44.68), FloatType(-54225.0) };
  
  	const Vector4Type test_value0 = vector_set(test_value0_flt[0], test_value0_flt[1], test_value0_flt[2], test_value0_flt[3]);
  	const Vector4Type test_value1 = vector_set(test_value1_flt[0], test_value1_flt[1], test_value1_flt[2], test_value1_flt[3]);
  
  	Vector4Type results[8 * 8 * 8];
  	uint32_t index = 0;
  
  #define RTM_TEST_MIX_XYZ(comp0, comp1, comp2) \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::x>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::y>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::z>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::w>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::a>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::b>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::c>(test_value0, test_value1); \
  	results[index++] = vector_mix<comp0, comp1, comp2, mix4::d>(test_value0, test_value1)
  
  #define RTM_TEST_MIX_XY(comp0, comp1) \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::x); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::y); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::z); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::w); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::a); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::b); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::c); \
  	RTM_TEST_MIX_XYZ(comp0, comp1, mix4::d)
  
  #define RTM_TEST_MIX_X(comp0) \
  	RTM_TEST_MIX_XY(comp0, mix4::x); \
  	RTM_TEST_MIX_XY(comp0, mix4::y); \
  	RTM_TEST_MIX_XY(comp0, mix4::z); \
  	RTM_TEST_MIX_XY(comp0, mix4::w); \
  	RTM_TEST_MIX_XY(comp0, mix4::a); \
  	RTM_TEST_MIX_XY(comp0, mix4::b); \
  	RTM_TEST_MIX_XY(comp0, mix4::c); \
  	RTM_TEST_MIX_XY(comp0, mix4::d)
  
  	// This generates 8*8*8 = 512 unit tests... it takes a while to compile and uses a lot of stack space
  	RTM_TEST_MIX_X(XArg);
  
  	index = 0;
  
  	const int comp0 = (int)XArg;
  	for (int comp1 = 0; comp1 < 8; ++comp1)
  		for (int comp2 = 0; comp2 < 8; ++comp2)
  			for (int comp3 = 0; comp3 < 8; ++comp3)
  			{
  				INFO("vector_mix<" << comp0 << ", " << comp1 << ", " << comp2 << ", " << comp3 << ">");
  
  				const Vector4Type expected = vector_set(
  					rtm_impl::is_mix_xyzw((mix4)comp0) ? test_value0_flt[comp0 - (int)mix4::x] : test_value1_flt[comp0 - (int)mix4::a],
  					rtm_impl::is_mix_xyzw((mix4)comp1) ? test_value0_flt[comp1 - (int)mix4::x] : test_value1_flt[comp1 - (int)mix4::a],
  					rtm_impl::is_mix_xyzw((mix4)comp2) ? test_value0_flt[comp2 - (int)mix4::x] : test_value1_flt[comp2 - (int)mix4::a],
  					rtm_impl::is_mix_xyzw((mix4)comp3) ? test_value0_flt[comp3 - (int)mix4::x] : test_value1_flt[comp3 - (int)mix4::a]);
  
  				CHECK(vector_all_near_equal(expected, results[index], threshold));
  
  				++index;
  			}
  
  #undef RTM_TEST_MIX_X
  #undef RTM_TEST_MIX_XY
  #undef RTM_TEST_MIX_XYZ
  }
  