signal-ptr.cpp

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// Copyright 2010 Thomas Moulard.
//
 
#include <dynamic-graph/debug.h>
#include <dynamic-graph/entity.h>
#include <dynamic-graph/factory.h>
#include <dynamic-graph/pool.h>
#include <dynamic-graph/signal-base.h>
#include <dynamic-graph/signal-ptr.h>
#include <dynamic-graph/signal-time-dependent.h>
#include <dynamic-graph/signal.h>
 
#include <boost/foreach.hpp>
#include <iostream>
#include <string>
 
#if BOOST_VERSION >= 105900
#include <boost/test/tools/output_test_stream.hpp>
#else
#include <boost/test/output_test_stream.hpp>
#endif
#include <boost/test/unit_test.hpp>
#include <boost/test/unit_test_suite.hpp>
#include <string>
 
using boost::test_tools::output_test_stream;
 
typedef dynamicgraph::SignalTimeDependent<double, int> sigDouble_t;
typedef dynamicgraph::SignalTimeDependent<std::string, int> sigString_t;
 
using namespace dynamicgraph;
using std::cout;
 
template <class T>
class DummyClass {
 public:
  std::string proname;
  std::list<sigDouble_t *> inputsig;
  std::list<sigString_t *> inputsigV;
 
  explicit DummyClass(const std::string &n)
      : proname(n), res(), call(), timedata() {}
 
  T &fun(T &res, int t) {
    ++call;
    timedata = t;
 
    BOOST_FOREACH (sigDouble_t *ptr, inputsig) ptr->access(timedata);
 
    BOOST_FOREACH (sigString_t *ptr, inputsigV) ptr->access(timedata);
 
    res = (*this)();
    return res;
  }
 
  void add(sigDouble_t &sig) { inputsig.push_back(&sig); }
  void add(sigString_t &sig) { inputsigV.push_back(&sig); }
 
  T operator()();
 
  T res;
  int call;
  int timedata;
};
 
template <>
double DummyClass<double>::operator()() {
  res = call * timedata;
  return res;
}
template <>
std::string DummyClass<std::string>::operator()() {
  std::ostringstream oss;
  oss << call * timedata;
  return oss.str();
}
 
template <class T>
T DummyClass<T>::operator()() {
  return this->res;
}
 
BOOST_AUTO_TEST_CASE(normal_cst_test) {
  SignalPtr<double, int> sigNotPlug(NULL, "sigNotPlug");
  const SignalPtr<double, int> cstSigNotPlug(NULL, "sigNotPlug");
 
  try {
    sigNotPlug.getPtr();
  } catch (ExceptionSignal &e) {
    cout << "Error catch" << std::endl;
  }
 
  // Test getPtr without plug
  bool res = false;
  try {
    //    Signal<double, int> * r =
    sigNotPlug.getPtr();
  } catch (const ExceptionSignal &aea) {
    res = (aea.getCode() == ExceptionSignal::NOT_INITIALIZED);
  }
  BOOST_CHECK(res);
 
  try {
    cstSigNotPlug.getPtr();
  } catch (const ExceptionSignal &aea) {
    res = (aea.getCode() == ExceptionSignal::NOT_INITIALIZED);
  }
  BOOST_CHECK(res);
 
  res = (sigNotPlug.needUpdate(5) == false);
  BOOST_CHECK(res);
  sigNotPlug.getTime();
  output_test_stream output;
  sigNotPlug.display(output);
  cstSigNotPlug.display(output);
}
 
BOOST_AUTO_TEST_CASE(normal_test) {
  Signal<double, int> sig("sig");
  Signal<int, int> sigint("sig");
  Signal<std::string, int> sigstr("sig_str");
  SignalPtr<double, int> sigPtrA(NULL, "sigPtrA"), sigPtrB(NULL, "sigPtrB");
  SignalPtr<double, int> sigPtrAbstract(NULL, "sigPtrAbstract");
  DummyClass<double> pro3("pro3");
 
  sig.setConstant(1.56);
  sig.recompute(2);
  std::string name = "sig";
  sig.getClassName(name);
  std::string test = "test";
  try {
    sig.getClassName(test);
  } catch (ExceptionSignal &e) {
    e.getExceptionName();
  }
  BOOST_CHECK(true);
 
  sigPtrA.setFunction(boost::bind(&DummyClass<double>::fun, &pro3, _1, _2));
  sigPtrA.recompute(3);
 
  SignalBase<int> &sigRef = sig, sigBase("sigBase");
  SignalBase<int> &sigPtrARef = sigPtrA, &sigPtrBRef = sigPtrB,
                  &sigPtrAbstractRef = sigPtrAbstract;
  sigPtrARef.plug(0);
  sigPtrARef.plug(&sigRef);
  sigPtrBRef.plug(&sigPtrARef);
  sigPtrAbstractRef.plug(&sigRef);
  sigPtrA.getPtr();
  BOOST_CHECK(true);
 
  int ltime = sigPtrA.getTime();
  sigPtrA.getPluged();
  sigPtrA(ltime);
  BOOST_CHECK(true);
 
  sigPtrB.getPtr();
  // TODO Can't check if the constant change
  sigPtrA.setConstantDefault(1.2);
  // getconstant
  sigPtrA.setConstantDefault();
  // getconstant
  sigPtrA.setConstant(3.4);
  // getconstant
  double tab_D[2];
  tab_D[0] = 1.2;
  tab_D[1] = 3.4;
  sigPtrA.setReference(tab_D, NULL);
  sigPtrA.access(5);
  output_test_stream output;
  sigPtrA.display(output);
  sigPtrA.setReferenceNonConstant(tab_D, NULL);
  sigPtrA.access(5);
  sigPtrA.display(output);
 
  // getreference
  sigPtrA.operator=(1.2);
  // getconstant
  sigPtrA.displayDependencies(output);
 
  cout << "Sig = ";
  sigRef.get(cout);
  cout << std::endl;
  cout << "SigPtrA = ";
  sigPtrARef.get(cout);
  cout << std::endl;
  cout << "SigPtrB = ";
  sigPtrBRef.get(cout);
  cout << std::endl;
 
  sigPtrA.unplug();
}
 
BOOST_AUTO_TEST_CASE(plug_signal_string) {
  Signal<std::string, int> outSig("output");
  SignalPtr<std::string, int> inSig(NULL, "input");
 
  Signal<dynamicgraph::Vector, int> outSigVec("outputVec");
  SignalPtr<dynamicgraph::Vector, int> inSigVec(NULL, "inputVec");
 
  std::string str("two words");
  outSig.setConstant(str);
  inSig.plug(&outSig);
  inSig.recompute(1);
  std::ostringstream os1;
  inSig.get(os1);
  std::string res(os1.str());
  BOOST_CHECK(res == str);
 
  dynamicgraph::Vector aVec;
  aVec.resize(5);
  aVec(0) = 1.0;
  aVec(1) = 2.0;
  aVec(2) = 3.0;
  aVec(3) = 4.0;
  aVec(4) = 5.0;
  outSigVec.setConstant(aVec);
  inSigVec.plug(&outSigVec);
  inSigVec.recompute(1);
  output_test_stream output;
  inSigVec.get(output);
  BOOST_CHECK(output.is_equal("1 2 3 4 5"));
 
  Signal<std::string, int> s("signal");
  std::ostringstream os2;
  s.setConstant(str);
  os2.clear();
  s.get(os2);
  res = os2.str();
  std::cout << "res=" << res << std::endl;
  BOOST_CHECK(res == str);
}
 
BOOST_AUTO_TEST_CASE(set_signal_string) {
  Signal<std::string, int> s("signal");
  std::string str("");
  std::ostringstream os;
  os << str;
  std::istringstream value(os.str());
  try {
    s.set(value);
  } catch (const std::exception &exc) {
    std::cout << exc.what() << std::endl;
    BOOST_CHECK(!(bool)("Tentative to set signal to empty string"));
  }
}