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Change testGCVSpline to use catch (#3555) #3564

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Sep 25, 2023
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Change testGCVSpline to use catch (#3555) #3564

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110 changes: 53 additions & 57 deletions OpenSim/Common/Test/testGCVSpline.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -24,69 +24,65 @@
#include <OpenSim/Common/GCVSplineSet.h>
#include <OpenSim/Auxiliary/auxiliaryTestFunctions.h>

#define CATCH_CONFIG_MAIN
#include <OpenSim/Auxiliary/catch.hpp>

using namespace OpenSim;
using namespace std;

int main() {
try {
const int size = 101;
const double T = 1.0;
const double omega = 2 * SimTK::Pi;
const double dt = T / (size - 1);
double x[size], y[size];
for (int i = 0; i < size; ++i) {
x[i] = dt*i;
y[i] = sin(omega*x[i]);
}
GCVSpline spline(5, size, x, y);
SimTK::Vector t(1, 0.0);
// Should obtain the input samples exactly
for (int i = 0; i < size; ++i) {
t[0] = x[i];
//cout << t[0] << " error = " << y[i] - spline.calcValue(t) << endl;
ASSERT_EQUAL(y[i], spline.calcValue(t),
SimTK::SignificantReal, __FILE__, __LINE__,
"GCVSpline failed to reproduce input data points.");
}
cout << "GCVSpline successfully reproduced input data points." << endl;

for (int i = 0; i < (2*size-1); ++i) {
t[0] = dt / 2 * i;
//cout << t[0] << " error = " << sin(omega*t[0]) - spline.calcValue(t) << endl;
ASSERT_EQUAL(sin(omega*t[0]), spline.calcValue(t),
dt*dt, __FILE__, __LINE__,
"GCVSpline failed to interpolate within accuracy requirement.");
}
cout << "GCVSpline successfully interpolated within accuracy." << endl;
TEST_CASE("GCVSpline Behaves as Expected")
{
const int size = 101;
const double T = 1.0;
const double omega = 2 * SimTK::Pi;
const double dt = T / (size - 1);
double x[size], y[size];
for (int i = 0; i < size; ++i) {
x[i] = dt*i;
y[i] = sin(omega*x[i]);
}
GCVSpline spline(5, size, x, y);
SimTK::Vector t(1, 0.0);
// Should obtain the input samples exactly
for (int i = 0; i < size; ++i) {
t[0] = x[i];
//cout << t[0] << " error = " << y[i] - spline.calcValue(t) << endl;
ASSERT_EQUAL(y[i], spline.calcValue(t),
SimTK::SignificantReal, __FILE__, __LINE__,
"GCVSpline failed to reproduce input data points.");
}
cout << "GCVSpline successfully reproduced input data points." << endl;

std::vector<int> derivComponents(1, 0); //take first derivative
for (int i = 5; i < size-5; ++i) {
t[0] = x[i];
double dy = omega*cos(omega*t[0]);
double dS = spline.calcDerivative(derivComponents, t);
for (int i = 0; i < (2*size-1); ++i) {
t[0] = dt / 2 * i;
//cout << t[0] << " error = " << sin(omega*t[0]) - spline.calcValue(t) << endl;
ASSERT_EQUAL(sin(omega*t[0]), spline.calcValue(t),
dt*dt, __FILE__, __LINE__,
"GCVSpline failed to interpolate within accuracy requirement.");
}
cout << "GCVSpline successfully interpolated within accuracy." << endl;

//cout << t[0] << " error = " << dy - dS<< endl;
ASSERT_EQUAL(dy, dS,
omega*dt*dt, __FILE__, __LINE__,
"GCVSpline failed to reproduce accurate first derivative.");
}
cout << "GCVSpline successfully produced first derivatives." << endl;
std::vector<int> derivComponents(1, 0); //take first derivative
for (int i = 5; i < size-5; ++i) {
t[0] = x[i];
double dy = omega*cos(omega*t[0]);
double dS = spline.calcDerivative(derivComponents, t);

GCVSpline spline2(5, size, x, y);
for (int i = 0; i < size; ++i) {
t[0] = x[i];
double dS = spline.calcDerivative(derivComponents, t);
double dS2 = spline2.calcDerivative(derivComponents, t);
//cout << t[0] << " error = " << dS - dS2 << endl;
ASSERT_EQUAL(dS, dS,
SimTK::Eps, __FILE__, __LINE__,
"Duplicate GCVSpline failed to reproduce identical first derivative.");
}
//cout << t[0] << " error = " << dy - dS<< endl;
ASSERT_EQUAL(dy, dS,
omega*dt*dt, __FILE__, __LINE__,
"GCVSpline failed to reproduce accurate first derivative.");
}
catch(const Exception& e) {
e.print(cerr);
return 1;
cout << "GCVSpline successfully produced first derivatives." << endl;

GCVSpline spline2(5, size, x, y);
for (int i = 0; i < size; ++i) {
t[0] = x[i];
double dS = spline.calcDerivative(derivComponents, t);
double dS2 = spline2.calcDerivative(derivComponents, t);
//cout << t[0] << " error = " << dS - dS2 << endl;
ASSERT_EQUAL(dS, dS,
SimTK::Eps, __FILE__, __LINE__,
"Duplicate GCVSpline failed to reproduce identical first derivative.");
}
cout << "Done" << endl;
return 0;
}