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// Test Suite for C-API LineString functions
#include <tut/tut.hpp>
// geos
#include <geos_c.h>
// std
#include <cmath>
#include "capi_test_utils.h"
namespace tut {
//
// Test Group
//
// Common data used in test cases.
struct test_capilinestring_data : public capitest::utility {};
typedef test_group<test_capilinestring_data> group;
typedef group::object object;
group test_capilinestring_group("capi::GEOSLineString");
//
// Test Cases
//
template<>
template<>
void object::test<1>
()
{
geom1_ = GEOSGeomFromWKT("LINESTRING(0 0, 5 5, 10 10)");
GEOSGeometry* geom2;
double x, y, z;
ensure(nullptr != geom1_);
char const r1 = GEOSisClosed(geom1_);
ensure_equals(r1, 0);
geom2 = GEOSGeomGetPointN(geom1_, 0);
GEOSGeomGetX(geom2, &x);
GEOSGeomGetY(geom2, &y);
GEOSGeomGetZ(geom2, &z);
ensure_equals(x, 0);
ensure_equals(y, 0);
ensure(std::isnan(z));
GEOSGeom_destroy(geom2);
ensure(GEOSGeomGetPointN(geom1_, -1) == nullptr);
geom2 = GEOSGeomGetStartPoint(geom1_);
GEOSGeomGetX(geom2, &x);
GEOSGeomGetY(geom2, &y);
GEOSGeomGetZ(geom2, &z);
ensure_equals(x, 0);
ensure_equals(y, 0);
ensure(std::isnan(z));
GEOSGeom_destroy(geom2);
geom2 = GEOSGeomGetEndPoint(geom1_);
GEOSGeomGetX(geom2, &x);
GEOSGeomGetY(geom2, &y);
GEOSGeomGetZ(geom2, &z);
ensure_equals(x, 10);
ensure_equals(y, 10);
ensure(std::isnan(z));
GEOSGeom_destroy(geom2);
}
template<>
template<>
void object::test<2>
()
{
geom1_ = GEOSGeomFromWKT("LINESTRING(0 0, 5 5, 10 10)");
double length;
ensure(nullptr != geom1_);
GEOSGeomGetLength(geom1_, &length);
ensure(length != 0.0);
}
// Check error on invalid input type
template<>
template<>
void object::test<3>
()
{
geom1_ = GEOSGeomFromWKT("POINT (0 0)");
ensure(GEOSGeomGetStartPoint(geom1_) == nullptr);
ensure(GEOSGeomGetEndPoint(geom1_) == nullptr);
ensure(GEOSGeomGetPointN(geom1_, 0) == nullptr);
ensure(GEOSGeomGetPointN(geom1_, 0) == nullptr);
double length;
ensure_equals(GEOSGeomGetLength(geom1_, &length), 0);
}
template<>
template<>
void object::test<4>
()
{
geom1_ = GEOSGeomFromWKT("LINEARRING(0 0, 5 5, 10 10, 0 0)");
GEOSGeometry* geom2;
double x, y, z;
ensure(nullptr != geom1_);
char const r1 = GEOSisClosed(geom1_);
ensure_equals(r1, 1);
geom2 = GEOSGeomGetPointN(geom1_, 0);
GEOSGeomGetX(geom2, &x);
GEOSGeomGetY(geom2, &y);
GEOSGeomGetZ(geom2, &z);
ensure_equals(x, 0);
ensure_equals(y, 0);
ensure(std::isnan(z));
GEOSGeom_destroy(geom2);
ensure(GEOSGeomGetPointN(geom1_, -1) == nullptr);
geom2 = GEOSGeomGetStartPoint(geom1_);
GEOSGeomGetX(geom2, &x);
GEOSGeomGetY(geom2, &y);
GEOSGeomGetZ(geom2, &z);
ensure_equals(x, 0);
ensure_equals(y, 0);
ensure(std::isnan(z));
GEOSGeom_destroy(geom2);
geom2 = GEOSGeomGetEndPoint(geom1_);
GEOSGeomGetX(geom2, &x);
GEOSGeomGetY(geom2, &y);
GEOSGeomGetZ(geom2, &z);
ensure_equals(x, 0);
ensure_equals(y, 0);
ensure(std::isnan(z));
GEOSGeom_destroy(geom2);
}
template<>
template<>
void object::test<5>
()
{
geom1_ = GEOSGeomFromWKT("LINEARRING(0 0, 5 5, 10 10, 0 0)");
double length;
ensure(nullptr != geom1_);
GEOSGeomGetLength(geom1_, &length);
ensure(length > 0.0);
}
} // namespace tut
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