public void GetEnvelope_ReturnsEmptyEnvelopeForEmptyPolygon()
{
Polygon target = new Polygon();
double x = double.NaN;
bool test = x == double.NaN;
Envelope envelope = target.GetEnvelope();
Assert.Equal(Envelope.Empty, envelope);
}
public void GetEnvelopeReturnsEnvelopeOfLineString()
{
Envelope expectedEnvelope = new Envelope(_coordinatesXYZ);
Polygon target = new Polygon(_exteriorRing3D);
Envelope envelope = target.GetEnvelope();
Assert.Equal(expectedEnvelope, envelope);
}