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#include "Fit/Param/Parameters.h"
#include "Tests/GTestWrapper/google_test.h"
#include <string>
TEST(Parameters, defaultConstructor)
{
mumufit::Parameters pars;
EXPECT_EQ(pars.size(), 0u);
EXPECT_TRUE(pars.values().empty());
EXPECT_TRUE(pars.errors().empty());
}
TEST(Parameters, addParameter)
{
mumufit::Parameters pars;
mumufit::Parameter par0("par0", 2.0, AttLimits::limitless(), 0.2);
mumufit::Parameter par1("par1", 3.0, AttLimits::limitless(), 0.2);
pars.add(par0);
pars.add(par1);
EXPECT_EQ(pars.size(), 2u);
std::vector<double> expected_values = {2.0, 3.0};
std::vector<double> expected_errors = {0.0, 0.0};
EXPECT_EQ(pars.values(), expected_values);
EXPECT_EQ(pars.errors(), expected_errors);
// attempt to add parameter with same name should lead to exception
mumufit::Parameter par2("par1", 3.0, AttLimits::limitless(), 0.2);
EXPECT_THROW(pars.add(par2), std::runtime_error);
// access to parameters by name
EXPECT_EQ(pars["par0"].name(), "par0");
// access to non-existing parameters
EXPECT_THROW(pars["non-existing"], std::runtime_error);
// access to parameters by index
EXPECT_EQ(pars[0].name(), "par0");
EXPECT_THROW(pars[2], std::runtime_error);
}
TEST(Parameters, setters)
{
mumufit::Parameters pars;
pars.add(mumufit::Parameter("par0", 2.0, AttLimits::limitless(), 0.2));
pars.add(mumufit::Parameter("par1", 3.0, AttLimits::limitless(), 0.2));
std::vector<double> expected_values = {42.0, 43.0};
std::vector<double> expected_errors = {0.1, 0.2};
pars.setValues(expected_values);
pars.setErrors(expected_errors);
EXPECT_EQ(pars.values(), expected_values);
EXPECT_EQ(pars.errors(), expected_errors);
// wrong size vector
std::vector<double> more_values = {42.0, 43.0, 44.0};
EXPECT_THROW(pars.setValues(more_values), std::runtime_error);
}
TEST(Parameters, freeParameterCount)
{
mumufit::Parameters pars;
EXPECT_EQ(pars.freeParameterCount(), 0u);
pars.add(mumufit::Parameter("par0", 2.0, AttLimits::fixed(), 0.2));
pars.add(mumufit::Parameter("par1", 3.0, AttLimits::limitless(), 0.2));
EXPECT_EQ(pars.freeParameterCount(), 1u);
}
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