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// $Id: GEOSNearestPointsTest.cpp 2424 2009-04-29 23:52:36Z mloskot $
//
// Test Suite for C-API GEOSNearestPoints
#include <tut/tut.hpp>
// geos
#include <geos_c.h>
#include "capi_test_utils.h"
namespace tut {
//
// Test Group
//
// Common data used in test cases.
struct test_capigeosnearestpoints_data : public capitest::utility {
void checkNearestPoints(const char* wkt1, const char* wkt2,
double x1, double y1,
double x2, double y2)
{
geom1_ = GEOSGeomFromWKT(wkt1);
ensure(nullptr != geom1_);
geom2_ = GEOSGeomFromWKT(wkt2);
ensure(nullptr != geom2_);
GEOSCoordSequence* coords_ = GEOSNearestPoints(geom1_, geom2_);
unsigned int size;
GEOSCoordSeq_getSize(coords_, &size);
ensure_equals("CoordSeq size", size, 2u);
double ox, oy;
/* Point in geom1_ */
GEOSCoordSeq_getOrdinate(coords_, 0, 0, &ox);
GEOSCoordSeq_getOrdinate(coords_, 0, 1, &oy);
ensure_equals("P1 x", ox, x1);
ensure_equals("P1 y", oy, y1);
/* Point in geom2_ */
GEOSCoordSeq_getOrdinate(coords_, 1, 0, &ox);
GEOSCoordSeq_getOrdinate(coords_, 1, 1, &oy);
ensure_equals("P2 x", ox, x2);
ensure_equals("P2 y", oy, y2);
GEOSCoordSeq_destroy(coords_);
}
void checkNearestPointsNull(const char* wkt1, const char* wkt2)
{
geom1_ = GEOSGeomFromWKT(wkt1);
ensure(nullptr != geom1_);
geom2_ = GEOSGeomFromWKT(wkt2);
ensure(nullptr != geom2_);
GEOSCoordSequence* coords_ = GEOSNearestPoints(geom1_, geom2_);
ensure(nullptr == coords_);
}
};
typedef test_group<test_capigeosnearestpoints_data> group;
typedef group::object object;
group test_capigeosnearestpoints_group("capi::GEOSNearestPoints");
//
// Test Cases
//
template<>
template<>
void object::test<1>
()
{
checkNearestPointsNull("POLYGON EMPTY", "POLYGON EMPTY");
}
template<>
template<>
void object::test<2>
()
{
checkNearestPoints(
"POLYGON((1 1,1 5,5 5,5 1,1 1))",
"POLYGON((8 8, 9 9, 9 10, 8 8))",
5, 5, 8, 8
);
}
template<>
template<>
void object::test<3>
()
{
checkNearestPoints(
"POLYGON((1 1,1 5,5 5,5 1,1 1))",
"POINT(2 2)",
2, 2, 2, 2
);
}
template<>
template<>
void object::test<4>
()
{
checkNearestPoints(
"LINESTRING(1 5,5 5,5 1,1 1)",
"POINT(2 2)",
2, 1, 2, 2
);
}
template<>
template<>
void object::test<5>
()
{
checkNearestPoints(
"LINESTRING(0 0,10 10)",
"LINESTRING(0 10,10 0)",
5, 5, 5, 5
);
}
template<>
template<>
void object::test<6>
()
{
checkNearestPoints(
"POLYGON((0 0,10 0,10 10,0 10,0 0))",
"LINESTRING(8 5,12 5)",
/* But could also be the intersection point... */
8, 5, 8, 5
);
}
} // namespace tut
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