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//
// Test Suite for C-API GEOSGeom_createCollection
#include <tut/tut.hpp>
// geos
#include <geos_c.h>
// std
#include <array>
#include <cstdio>
#include <cstdlib>
#include <vector>
#include "capi_test_utils.h"
namespace tut {
//
// Test Group
//
// Common data used in test cases.
struct test_capigeosgeom_createcollection_data : public capitest::utility
{
GEOSGeometry ** m_geoms;
unsigned int m_ngeoms;
test_capigeosgeom_createcollection_data()
: m_geoms(nullptr)
, m_ngeoms(0)
{}
~test_capigeosgeom_createcollection_data()
{
if (m_geoms) GEOSFree(m_geoms);
m_geoms = nullptr;
}
};
#define geom_size 3
typedef test_group<test_capigeosgeom_createcollection_data> group;
typedef group::object object;
group test_capigeosgeom_createcollection_group("capi::GEOSGeom_createCollection");
//
// Test Cases
//
// Create collection from constant length C-array
template<>
template<>
void object::test<1>()
{
GEOSGeometry* geoms[geom_size];
geoms[0] = GEOSGeom_createEmptyPoint();
geoms[1] = GEOSGeom_createEmptyPoint();
geoms[2] = GEOSGeom_createEmptyPoint();
// takes ownership of individual geometries
geom1_ = GEOSGeom_createCollection(GEOS_MULTIPOINT, geoms, geom_size);
ensure_equals(GEOSGetNumGeometries(geom1_), geom_size);
}
// Create collection from constant length std::array
template<>
template<>
void object::test<2>()
{
std::array<GEOSGeometry*, geom_size> geoms = {{
GEOSGeom_createEmptyLineString(),
GEOSGeom_createEmptyLineString(),
GEOSGeom_createEmptyLineString()
}};
// takes ownership of individual geometries
geom1_ = GEOSGeom_createCollection(
GEOS_MULTILINESTRING,
geoms.data(),
static_cast<unsigned int>(geoms.size()));
ensure_equals(GEOSGetNumGeometries(geom1_), geom_size);
}
// Create collection from dynamic length std::vector of geometries
template<>
template<>
void object::test<3>()
{
std::vector<GEOSGeometry*> geoms;
geoms.push_back(GEOSGeom_createEmptyPolygon());
geoms.push_back(GEOSGeom_createEmptyPolygon());
geoms.push_back(GEOSGeom_createEmptyPolygon());
geoms.push_back(GEOSGeom_createEmptyPolygon());
geoms.push_back(GEOSGeom_createEmptyPolygon());
// takes ownership of individual geometries
geom1_ = GEOSGeom_createCollection(
GEOS_MULTIPOLYGON,
geoms.data(),
static_cast<unsigned int>(geoms.size()));
ensure_equals(static_cast<size_t>(GEOSGetNumGeometries(geom1_)), geoms.size());
}
// Error on invalid collection type, ownership is still transferred
template<>
template<>
void object::test<4>()
{
std::vector<GEOSGeometry*> geoms;
geoms.push_back(GEOSGeom_createEmptyPolygon());
// takes ownership of individual geometries
geom1_ = GEOSGeom_createCollection(
12345,
geoms.data(),
static_cast<unsigned int>(geoms.size()));
ensure(geom1_ == nullptr);
geom1_ = GEOSGeom_createEmptyCollection(12345);
ensure(geom1_ == nullptr);
}
// Release empty collection
template<>
template<>
void object::test<5>()
{
geom1_ = fromWKT("MULTIPOLYGON EMPTY");
m_geoms = GEOSGeom_releaseCollection(geom1_, &m_ngeoms);
ensure(m_geoms == nullptr);
ensure(m_ngeoms == 0);
}
// Release generic collection
template<>
template<>
void object::test<6>
()
{
geom1_ = fromWKT("GEOMETRYCOLLECTION(POINT(0 0), POINT(1 1))");
m_geoms = GEOSGeom_releaseCollection(geom1_, &m_ngeoms);
ensure(m_geoms != nullptr);
ensure(m_ngeoms == 2);
for (size_t i = 0 ; i < m_ngeoms; i++) {
ensure(GEOSGeomTypeId(m_geoms[i]) == GEOS_POINT);
GEOSGeom_destroy(m_geoms[i]);
}
}
// Release typed collection
template<>
template<>
void object::test<7>
()
{
geom1_ = fromWKT("MULTIPOINT((0 0), (1 1))");
m_geoms = GEOSGeom_releaseCollection(geom1_, &m_ngeoms);
ensure(m_geoms != nullptr);
ensure(m_ngeoms == 2);
for (size_t i = 0 ; i < m_ngeoms; i++) {
ensure(GEOSGeomTypeId(m_geoms[i]) == GEOS_POINT);
GEOSGeom_destroy(m_geoms[i]);
}
}
// Create MultiCurve
template<>
template<>
void object::test<8>
()
{
GEOSGeometry* geoms[2];
geoms[0] = fromWKT("CIRCULARSTRING (0 0, 1 1, 2 0)");
geoms[1] = fromWKT("LINESTRING (2 0, 3 3)");
result_ = GEOSGeom_createCollection(GEOS_MULTICURVE, geoms, 2);
expected_ = fromWKT("MULTICURVE (CIRCULARSTRING (0 0, 1 1, 2 0), (2 0, 3 3))");
ensure_geometry_equals_identical(result_, expected_);
}
// Create MultiSurface
template<>
template<>
void object::test<9>
()
{
GEOSGeometry* geoms[2];
geoms[0] = fromWKT("POLYGON ((0 0, 1 0, 1 1, 0 0))");
geoms[1] = fromWKT("CURVEPOLYGON (CIRCULARSTRING (10 10, 20 10, 15 15, 10 10))");
result_ = GEOSGeom_createCollection(GEOS_MULTISURFACE, geoms, 2);
expected_ = fromWKT("MULTISURFACE (((0 0, 1 0, 1 1, 0 0)), CURVEPOLYGON (CIRCULARSTRING (10 10, 20 10, 15 15, 10 10)))");
ensure_geometry_equals_identical(result_, expected_);
}
} // namespace tut
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