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#include <tut/tut.hpp>
// geos
#include <geos_c.h>
#include "capi_test_utils.h"
namespace tut {
//
// Test Group
//
struct test_geosissimpledetail_data : public capitest::utility {};
typedef test_group<test_geosissimpledetail_data> group;
typedef group::object object;
group test_geosissimpledetail("capi::GEOSisSimpleDetail");
template<>
template<>
void object::test<1>()
{
set_test_name("simple LineString");
input_ = GEOSGeomFromWKT("LINESTRING (0 0, 1 1)");
ensure_equals(1, GEOSisSimpleDetail(input_, 0, &result_));
ensure(result_ == nullptr);
}
template<>
template<>
void object::test<2>()
{
set_test_name("LineString with single self-intersection");
input_ = GEOSGeomFromWKT("LINESTRING (0 0, 2 2, 1 2, 1 0)");
ensure_equals(0, GEOSisSimpleDetail(input_, 0, &result_));
ensure_geometry_equals(result_, "POINT (1 1)");
}
template<>
template<>
void object::test<3>()
{
set_test_name("LineString with multiple self-intersections");
input_ = GEOSGeomFromWKT("LINESTRING (2 1, 0 0, 2 2, 1 2, 1 0)");
expected_ = GEOSGeomFromWKT("MULTIPOINT (1 1, 1 0.5)");
ensure_equals(0, GEOSisSimpleDetail(input_, 0, &result_));
ensure(result_ != nullptr);
ensure(GEOSEquals(result_, GEOSGetGeometryN(expected_, 0)) || GEOSEquals(result_, GEOSGetGeometryN(expected_, 1)));
GEOSGeom_destroy(result_);
ensure_equals(0, GEOSisSimpleDetail(input_, 1, &result_));
ensure(result_ != nullptr);
ensure_geometry_equals(result_, expected_);
}
template<>
template<>
void object::test<4>()
{
set_test_name("error raised on curved geometry");
input_ = fromWKT("CIRCULARSTRING (0 0, 1 1, 2 0)");
ensure(input_ != nullptr);
ensure_equals(GEOSisSimpleDetail(input_, 0, &result_), 2);
}
template<>
template<>
void object::test<5>()
{
set_test_name("points are always simple");
input_ = GEOSGeomFromWKT("POINT (3 2)");
ensure_equals(1, GEOSisSimpleDetail(input_, 0, &result_));
ensure(result_ == nullptr);
}
template<>
template<>
void object::test<6>()
{
set_test_name("empty LineString is simple");
input_ = GEOSGeomFromWKT("LINESTRING EMPTY");
ensure_equals(1, GEOSisSimpleDetail(input_, 0, &result_));
ensure(result_ == nullptr);
}
template<>
template<>
void object::test<7>()
{
set_test_name("Polygon is non-simple if ring is non-simple");
input_ = GEOSGeomFromWKT("POLYGON ((0 0, 1 0, 0 1, 1 1, 0 0))");
ensure_equals(0, GEOSisSimpleDetail(input_, 0, &result_));
ensure_geometry_equals(result_, "POINT (0.5 0.5)");
}
} // namespace tut
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