TestSerializeCustomCompoundBondForce.cpp

/* -------------------------------------------------------------------------- *
 *                                   OpenMM                                   *
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 * This is part of the OpenMM molecular simulation toolkit originating from   *
 * Simbios, the NIH National Center for Physics-Based Simulation of           *
 * Biological Structures at Stanford, funded under the NIH Roadmap for        *
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 * Authors: Peter Eastman                                                     *
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#include "openmm/internal/AssertionUtilities.h"
#include "openmm/CustomCompoundBondForce.h"
#include "openmm/serialization/XmlSerializer.h"
#include <iostream>
#include <sstream>

using namespace OpenMM;
using namespace std;

void testSerialization() {
    // Create a Force.

    CustomCompoundBondForce force(3, "5*sin(distance(p1,p2))^2+y*z");
    force.setForceGroup(3);
    force.addGlobalParameter("x", 1.3);
    force.addGlobalParameter("y", 2.221);
    force.addPerBondParameter("z");
    vector<int> particles(3);
    vector<double> params(1);
    particles[0] = 0;
    particles[1] = 1;
    particles[2] = 2;
    params[0] = 1.0;
    force.addBond(particles, params);
    particles[0] = 2;
    particles[1] = 3;
    particles[2] = 4;
    params[0] = -3.3;
    force.addBond(particles, params);
    particles[0] = 3;
    particles[1] = 5;
    particles[2] = 1;
    params[0] = 2.1;
    force.addBond(particles, params);
    vector<double> values(10);
    for (int i = 0; i < 10; i++)
        values[i] = sin((double) i);
    force.addTabulatedFunction("f", new Continuous1DFunction(values, 0.5, 1.5));

    // Serialize and then deserialize it.

    stringstream buffer;
    XmlSerializer::serialize<CustomCompoundBondForce>(&force, "Force", buffer);
    CustomCompoundBondForce* copy = XmlSerializer::deserialize<CustomCompoundBondForce>(buffer);

    // Compare the two forces to see if they are identical.

    CustomCompoundBondForce& force2 = *copy;
    ASSERT_EQUAL(force.getForceGroup(), force2.getForceGroup());
    ASSERT_EQUAL(force.getNumParticlesPerBond(), force2.getNumParticlesPerBond());
    ASSERT_EQUAL(force.getEnergyFunction(), force2.getEnergyFunction());
    ASSERT_EQUAL(force.getNumPerBondParameters(), force2.getNumPerBondParameters());
    for (int i = 0; i < force.getNumPerBondParameters(); i++)
        ASSERT_EQUAL(force.getPerBondParameterName(i), force2.getPerBondParameterName(i));
    ASSERT_EQUAL(force.getNumGlobalParameters(), force2.getNumGlobalParameters());
    for (int i = 0; i < force.getNumGlobalParameters(); i++) {
        ASSERT_EQUAL(force.getGlobalParameterName(i), force2.getGlobalParameterName(i));
        ASSERT_EQUAL(force.getGlobalParameterDefaultValue(i), force2.getGlobalParameterDefaultValue(i));
    }
    ASSERT_EQUAL(force.getNumBonds(), force2.getNumBonds());
    for (int i = 0; i < force.getNumBonds(); i++) {
        vector<int> particles1, particles2;
        vector<double> params1, params2;
        force.getBondParameters(i, particles1, params1);
        force2.getBondParameters(i, particles2, params2);
        ASSERT_EQUAL(params1.size(), params2.size());
        for (int j = 0; j < (int) params1.size(); j++)
            ASSERT_EQUAL(params1[j], params2[j]);
        ASSERT_EQUAL(particles1.size(), particles2.size());
        for (int j = 0; j < (int) particles1.size(); j++)
            ASSERT_EQUAL(particles1[j], particles2[j]);
    }
    ASSERT_EQUAL(force.getNumTabulatedFunctions(), force2.getNumTabulatedFunctions());
    for (int i = 0; i < force.getNumTabulatedFunctions(); i++) {
        double min1, min2, max1, max2;
        vector<double> val1, val2;
        dynamic_cast<Continuous1DFunction&>(force.getTabulatedFunction(i)).getFunctionParameters(val1, min1, max1);
        dynamic_cast<Continuous1DFunction&>(force2.getTabulatedFunction(i)).getFunctionParameters(val2, min2, max2);
        ASSERT_EQUAL(force.getTabulatedFunctionName(i), force2.getTabulatedFunctionName(i));
        ASSERT_EQUAL(min1, min2);
        ASSERT_EQUAL(max1, max2);
        ASSERT_EQUAL(val1.size(), val2.size());
        for (int j = 0; j < (int) val1.size(); j++)
            ASSERT_EQUAL(val1[j], val2[j]);
    }
}

int main() {
    try {
        testSerialization();
    }
    catch(const exception& e) {
        cout << "exception: " << e.what() << endl;
        return 1;
    }
    cout << "Done" << endl;
    return 0;
}