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#include "obtest.h"
#include <openbabel/stereo/tetrahedral.h>
#include <openbabel/stereo/cistrans.h>
#include <openbabel/mol.h>
#include <openbabel/obconversion.h>
using namespace std;
using namespace OpenBabel;
std::string GetFilename(const std::string &filename)
{
string path = TESTDATADIR + filename;
return path;
}
std::string test_singleTetrahedral(const std::string &file,
const OBTetrahedralStereo::Config &correct)
{
OBMol mol;
OBConversion conv;
conv.SetInFormat("mol");
conv.SetOutFormat("can");
const std::string filename = GetFilename(file);
ifstream ifs(filename.c_str());
if (!ifs) {
cerr << "Could not open " << filename << endl;
return std::string();
}
conv.Read(&mol, &ifs);
ifs.close();
std::vector<OBGenericData *> stereoData = mol.GetAllData(OBGenericDataType::StereoData);
OB_ASSERT( stereoData.size() == 1 );
// compare the stereochemistry
for (std::vector<OBGenericData*>::iterator data = stereoData.begin(); data != stereoData.end(); ++data) {
if (((OBStereoBase*)*data)->GetType() == OBStereo::Tetrahedral) {
OBTetrahedralStereo *ts = dynamic_cast<OBTetrahedralStereo*>(*data);
OB_ASSERT( ts->GetConfig() == correct );
if ( ts->GetConfig() != correct ) {
cout << "found = " << ts->GetConfig() << endl;
cout << "correct = " << correct << endl;
}
OBTetrahedralStereo::Config cfg = ts->GetConfig();
OB_ASSERT( cfg.specified );
// change refs
OBStereo::Permutate(cfg.refs, 1, 2);
OB_ASSERT( cfg != correct );
// change winding
cfg.winding = (cfg.winding == OBStereo::Clockwise) ? OBStereo::AntiClockwise : OBStereo::Clockwise;
OB_ASSERT( cfg == correct );
// change view
cfg.view = (cfg.view == OBStereo::ViewFrom) ? OBStereo::ViewTowards : OBStereo::ViewFrom;
OB_ASSERT( cfg != correct );
cfg.view = (cfg.view == OBStereo::ViewFrom) ? OBStereo::ViewTowards : OBStereo::ViewFrom;
OB_ASSERT( cfg == correct );
// change center
cfg.center = 3994;
OB_ASSERT( cfg != correct );
}
}
return conv.WriteString(&mol);
}
std::string test_singleCisTrans(const std::string &file,
const OBCisTransStereo::Config &correct)
{
OBMol mol;
OBConversion conv;
conv.SetInFormat("mol");
conv.SetOutFormat("can");
const std::string filename = GetFilename(file);
ifstream ifs(filename.c_str());
if (!ifs) {
cerr << "Could not open " << filename << endl;
return std::string();
}
conv.Read(&mol, &ifs);
ifs.close();
std::vector<OBGenericData *> stereoData = mol.GetAllData(OBGenericDataType::StereoData);
OB_ASSERT( stereoData.size() == 1 );
// compare the stereochemistry
for (std::vector<OBGenericData*>::iterator data = stereoData.begin(); data != stereoData.end(); ++data) {
if (((OBStereoBase*)*data)->GetType() == OBStereo::CisTrans) {
OBCisTransStereo *ct = dynamic_cast<OBCisTransStereo*>(*data);
OB_ASSERT( ct->GetConfig() == correct );
if ( ct->GetConfig() != correct ) {
cout << "found = " << ct->GetConfig() << endl;
cout << "correct = " << correct << endl;
}
}
}
return conv.WriteString(&mol);
}
std::string readMol(OBMol *pmol, const std::string &file)
{
OBConversion conv;
conv.SetInFormat("mol");
conv.SetOutFormat("can");
const std::string filename = GetFilename(file);
ifstream ifs(filename.c_str());
if (!ifs) {
cerr << "Could not open " << filename << endl;
return NULL;
}
conv.Read(pmol, &ifs);
ifs.close();
return conv.WriteString(pmol);
}
std::string test_singleUnspecifiedTetrahedral(const std::string &file,
unsigned long center)
{
OBMol mol;
string retval = readMol(&mol, file);
if (retval.size() > 0) {
OBStereoFacade stereo(&mol);
OB_ASSERT( stereo.HasTetrahedralStereo(center) );
OBTetrahedralStereo *ts = stereo.GetTetrahedralStereo(center);
OB_ASSERT( ts->GetConfig().specified == false );
}
return retval;
}
std::string test_singleUnknownTetrahedral(const std::string &file,
unsigned long center)
{
OBMol mol;
string retval = readMol(&mol, file);
if (retval.size() > 0) {
OBStereoFacade stereo(&mol);
OB_ASSERT( stereo.HasTetrahedralStereo(center) );
OBTetrahedralStereo *ts = stereo.GetTetrahedralStereo(center);
OBTetrahedralStereo::Config cfg = ts->GetConfig();
OB_ASSERT( cfg.specified == true );
OB_ASSERT( cfg.winding == OBStereo::UnknownWinding );
}
return retval;
}
void test_noStereo(const std::string &file)
{
OBMol mol;
OBConversion conv;
conv.SetInFormat("mol");
conv.SetOutFormat("can");
const std::string filename = GetFilename(file);
ifstream ifs(filename.c_str());
if (!ifs) {
cerr << "Could not open " << filename << endl;
return;
}
conv.Read(&mol, &ifs);
ifs.close();
// perceive stereochemistry from 3D
StereoFrom3D(&mol);
std::vector<OBGenericData *> stereoData = mol.GetAllData(OBGenericDataType::StereoData);
OB_ASSERT( stereoData.size() == 0 );
}
int main()
{
// Define location of file formats for testing
#ifdef FORMATDIR
char env[BUFF_SIZE];
snprintf(env, BUFF_SIZE, "BABEL_LIBDIR=%s", FORMATDIR);
putenv(env);
#endif
// There are several cases to test:
//////////////////////////////////////////////////////////////////////////////
//
// 1 StereoFrom3D for tetrahedral atoms
//
//////////////////////////////////////////////////////////////////////////////
// 1.1 Input molecule with 4 refs (explicit H)
// 1.1.1 234 == 234 @
string smiles3D_1 = test_singleTetrahedral("stereo/tetrahedral3D_1.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, 4), OBStereo::AntiClockwise));
// 1.1.2 234 == 234 @@
string smiles3D_2 = test_singleTetrahedral("stereo/tetrahedral3D_2.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, 4), OBStereo::Clockwise));
// 1.1.3 compare using ImplicitRef
string smiles3D_5 = test_singleTetrahedral("stereo/tetrahedral3D_1.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef), OBStereo::AntiClockwise));
// 1.2 Input molecule with 3 refs (implicit H)
// 1.2.1 23H == 23H @@
string smiles3D_3 = test_singleTetrahedral("stereo/tetrahedral3D_3.mol",
OBTetrahedralStereo::Config(0, 1, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef), OBStereo::Clockwise));
// 1.2.2 23H == 23H @
string smiles3D_4 = test_singleTetrahedral("stereo/tetrahedral3D_4.mol",
OBTetrahedralStereo::Config(0, 1, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef), OBStereo::AntiClockwise));
// 1.2.3 compare using explicit id
string smiles3D_6 = test_singleTetrahedral("stereo/tetrahedral3D_4.mol",
OBTetrahedralStereo::Config(0, 1, OBStereo::MakeRefs(2, 3, 4), OBStereo::AntiClockwise));
OB_ASSERT( smiles3D_1 == smiles3D_2 );
OB_ASSERT( smiles3D_1 == smiles3D_3 );
OB_ASSERT( smiles3D_1 == smiles3D_4 );
OB_ASSERT( smiles3D_1 == smiles3D_5 );
OB_ASSERT( smiles3D_1 == smiles3D_6 );
cout << smiles3D_1 << endl;
//////////////////////////////////////////////////////////////////////////////
//
// 2 StereoFrom3D for cis/trans bonds
//
//////////////////////////////////////////////////////////////////////////////
// 2.1 Input molecule with 4 refs (explicit H)
// 2.1.1 F H 2 5
// \ /
// C==C 1 3
// / \
// H F 0 4
string smiles7 = test_singleCisTrans("stereo/cistrans3D_1.mol",
OBCisTransStereo::Config(1, 3, OBStereo::MakeRefs(0, 2, 4, 5), OBStereo::ShapeZ));
// implicit refs
test_singleCisTrans("stereo/cistrans3D_1.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(OBStereo::ImplicitRef, 2, 4, 5), OBStereo::ShapeZ));
test_singleCisTrans("stereo/cistrans3D_1.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(0, 2, 4, OBStereo::ImplicitRef), OBStereo::ShapeZ));
test_singleCisTrans("stereo/cistrans3D_1.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(OBStereo::ImplicitRef, 2, 4, OBStereo::ImplicitRef), OBStereo::ShapeZ));
// 2.1.2 F F 2 4
// \ /
// C==C 1 3
// / \
// H H 0 5
string smiles8 = test_singleCisTrans("stereo/cistrans3D_4.mol",
OBCisTransStereo::Config(1, 3, OBStereo::MakeRefs(0, 2, 4, 5), OBStereo::ShapeU));
// implicit refs
test_singleCisTrans("stereo/cistrans3D_4.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(OBStereo::ImplicitRef, 2, 4, 5), OBStereo::ShapeU));
test_singleCisTrans("stereo/cistrans3D_4.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(0, 2, 4, OBStereo::ImplicitRef), OBStereo::ShapeU));
test_singleCisTrans("stereo/cistrans3D_4.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(OBStereo::ImplicitRef, 2, 4, OBStereo::ImplicitRef), OBStereo::ShapeU));
// 2.2 Input molecule with 3 refs (implicit H)
// 2.2.1 F 1
// \
// C==C 0 2
// \
// F 3
string smiles9 = test_singleCisTrans("stereo/cistrans3D_2.mol", OBCisTransStereo::Config(0, 2,
OBStereo::MakeRefs(1, OBStereo::ImplicitRef, 3, OBStereo::ImplicitRef), OBStereo::ShapeU));
// 2.2.1 F F 2 4
// \ /
// C==C 1 3
// /
// H 0
string smiles10 = test_singleCisTrans("stereo/cistrans3D_5.mol", OBCisTransStereo::Config(1, 3,
OBStereo::MakeRefs(0, 2, 4, OBStereo::ImplicitRef), OBStereo::ShapeU));
OB_ASSERT( smiles7 == smiles9 );
OB_ASSERT( smiles8 == smiles10 );
cout << smiles7 << endl;
// 3 No stereochemistry
// 3.1 H H 3 2
// \ /
// C==C 0 1
// \
// F 4
test_noStereo("stereo/cistrans3D_3.mol");
//////////////////////////////////////////////////////////////////////////////
//
// 3 StereoFrom2D for tetrahedral atoms
//
//////////////////////////////////////////////////////////////////////////////
// 3.1 Input molecule with 4 refs (2x in plane, one behind plane, one in front of plane)
// 3.1.1 Input molecule with 4 refs (2x in plane bond, hash & wedge bond)
//
// F I C-F : hash (from C to F)
// \ / C-I : wedge (from C to F)
// C
// / \
// Br Cl
string smiles2D_1 = test_singleTetrahedral("stereo/tetrahedral2D_1.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, 4), OBStereo::AntiClockwise));
// 3.1.2 Input molecule with 4 refs (2x in plane bond, 'real' hash & 'inverted' hash bond)
//
// F I C-F : 'real' hash (from C to F)
// \ / C-I : 'inverted' hash (from I to C) = 'real' wedge
// C
// / \
// Br Cl
string smiles2D_2 = test_singleTetrahedral("stereo/tetrahedral2D_4.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, 4), OBStereo::AntiClockwise));
// 3.1.3 Input molecule with 4 refs (2x in plane bond, 'real' wedge & 'inverted' wedge bond)
//
// F I C-F : 'inverted' wedge (from F to C) = 'real' hash
// \ / C-I : 'real' wedge (from C to I)
// C
// / \
// Br Cl
string smiles2D_3 = test_singleTetrahedral("stereo/tetrahedral2D_5.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, 4), OBStereo::AntiClockwise));
OB_ASSERT( smiles2D_1 == smiles2D_2 );
OB_ASSERT( smiles2D_1 == smiles2D_3 );
cout << smiles2D_1 << endl;
// 3.2 Input molecule with 3 refs (2x in plane, one behind plane or in front of plane)
// 3.2.1 Input molecule with 3 refs (2x in plane bond, real wedge bond)
//
// F C-F : 'real' wedge (from C to F)
// |
// C
// / \
// Br Cl
string smiles2D_4 = test_singleTetrahedral("stereo/tetrahedral2D_2.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef),
OBStereo::AntiClockwise));
// 3.2.2 Input molecule with 3 refs (2x in plane bond, inverted wedge bond)
//
// F C-F : 'inverted' wedge (from F to C)
// |
// C
// / \
// Br Cl
/* No support for inverted bonds in 'tip-only' convention
string smiles2D_5 = test_singleTetrahedral("stereo/tetrahedral2D_6.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef),
OBStereo::Clockwise));*/
// 3.2.3 Input molecule with 3 refs (2x in plane bond, real hash bond)
//
// F C-F : 'real' hash (from C to F)
// |
// C
// / \
// Br Cl
string smiles2D_6 = test_singleTetrahedral("stereo/tetrahedral2D_3.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef),
OBStereo::Clockwise));
// 3.2.3 Input molecule with 3 refs (2x in plane bond, real hash bond)
//
// F C-F : 'inverted' hash (from F to C)
// |
// C
// / \
// Br Cl
/* No support for inverted bonds in 'tip-only' convention
string smiles2D_7 = test_singleTetrahedral("stereo/tetrahedral2D_7.mol",
OBTetrahedralStereo::Config(1, 0, OBStereo::MakeRefs(2, 3, OBStereo::ImplicitRef),
OBStereo::AntiClockwise));
OB_ASSERT( smiles2D_4 == smiles2D_7 );
OB_ASSERT( smiles2D_5 == smiles2D_6 );*/
cout << smiles2D_4 << endl;
// Input molecule with unknown stereochemistry
string smiles2D_8 = test_singleUnknownTetrahedral("stereo/tetrahedral2D_8.mol", 1);
cout << smiles2D_8 << endl;
// Input molecule with unspecified stereochemistry
string smiles2D_9 = test_singleUnspecifiedTetrahedral("stereo/tetrahedral2D_9.mol", 1);
cout << smiles2D_9 << endl;
//////////////////////////////////////////////////////////////////////////////
//
// 4 StereoFrom2D for cis/trans bonds
//
//////////////////////////////////////////////////////////////////////////////
// C
// \
// C==C
// \
// C
string cistrans2D_1 = test_singleCisTrans("stereo/cistrans2D_1.mol",
OBCisTransStereo::Config(0, 1, OBStereo::MakeRefs(2, OBStereo::ImplicitRef,
3, OBStereo::ImplicitRef), OBStereo::ShapeU));
//
// C C
// \ /
// C==C
//
string cistrans2D_2 = test_singleCisTrans("stereo/cistrans2D_2.mol",
OBCisTransStereo::Config(0, 1, OBStereo::MakeRefs(2, OBStereo::ImplicitRef,
OBStereo::ImplicitRef, 3), OBStereo::ShapeU));
return 0;
}
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