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Fix gamma tests

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This commit is contained in:
John Wellbelove 2025-07-18 16:33:23 +01:00
parent 8de211acd9
commit 7f53572b53
2 changed files with 11 additions and 58 deletions
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1
include/etl/gamma.h
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@ -66,6 +66,7 @@ namespace etl
// Calculate intermediate result because rounding + optimization
// lead to wrong values when returning directly (test on i386)
const double result = maximum * pow(double(value) / maximum, one_over_gamma);
return TInput(result);
}

68
test/test_gamma.cpp
View File

@ -38,11 +38,8 @@ namespace
{
constexpr size_t Size = 10UL;
using IntGammaEncode = etl::gamma_encode<int>;
using DoubleGammaEncode = etl::gamma_encode<double>;
using IntGammaDecode = etl::gamma_decode<int>;
using DoubleGammaDecode = etl::gamma_decode<double>;
using GammaEncode = etl::gamma_encode<double>;
using GammaDecode = etl::gamma_decode<double>;
struct Compare
{
@ -53,30 +50,7 @@ namespace
};
//***********************************
const std::array<int, Size> input1a =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
};
const std::array<int, Size> result1a =
{
0, 0, 0, 1, 1, 2, 4, 5, 7, 9
};
const std::array<int, Size> input1b =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
};
const std::array<int, Size> result1b =
{
0, 3, 4, 5, 6, 6, 7, 7, 8, 9
};
std::array<int, Size> output1;
//***********************************
const std::array<double, Size> input2a =
const std::array<double, Size> input1a =
{
0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0
};
@ -86,7 +60,7 @@ namespace
0.0, 0.11, 0.44, 1.00, 1.78, 2.78, 4.00, 5.44, 7.11, 9.00
};
const std::array<double, Size> input2b =
const std::array<double, Size> input1b =
{
0.0, 0.11, 0.44, 1.00, 1.78, 2.78, 4.00, 5.44, 7.11, 9.00
};
@ -101,44 +75,22 @@ namespace
SUITE(test_gamma)
{
//*************************************************************************
TEST(test_int_gamma_encode)
TEST(test_gamma_encode)
{
IntGammaEncode gamma(0.5, 9);
GammaEncode gamma(0.5, 9.0);
std::transform(input1a.begin(), input1a.end(), output1.begin(), gamma);
bool isEqual = std::equal(output1.begin(), output1.end(), result1a.begin());
CHECK(isEqual);
}
//*************************************************************************
TEST(test_int_gamma_decode)
{
IntGammaDecode gamma(0.5, 9);
std::transform(input1b.begin(), input1b.end(), output1.begin(), gamma);
bool isEqual = std::equal(output1.begin(), output1.end(), result1b.begin());
CHECK(isEqual);
}
//*************************************************************************
TEST(test_double_gamma_encode)
{
DoubleGammaEncode gamma(0.5, 9.0);
std::transform(input2a.begin(), input2a.end(), output2.begin(), gamma);
std::transform(input1a.begin(), input1a.end(), output2.begin(), gamma);
bool isEqual = std::equal(output2.begin(), output2.end(), result2a.begin(), Compare());
CHECK(isEqual);
}
//*************************************************************************
TEST(test_double_gamma_decode)
TEST(test_gamma_decode)
{
DoubleGammaDecode gamma(0.5, 9.0);
GammaDecode gamma(0.5, 9.0);
std::transform(input2b.begin(), input2b.end(), output2.begin(), gamma);
std::transform(input1b.begin(), input1b.end(), output2.begin(), gamma);
bool isEqual = std::equal(output2.begin(), output2.end(), result2b.begin(), Compare());
CHECK(isEqual);