def test_entity():
x = Symbol('x', real=True)
y = Symbol('y', real=True)
assert GeometryEntity(x, y) in GeometryEntity(x, y)
raises(NotImplementedError, lambda: Point(0, 0) in GeometryEntity(x, y))
assert GeometryEntity(x, y) == GeometryEntity(x, y)
assert GeometryEntity(x, y).equals(GeometryEntity(x, y))
c = Circle((0, 0), 5)
assert GeometryEntity.encloses(c, Point(0, 0))
assert GeometryEntity.encloses(c, Segment((0, 0), (1, 1)))
assert GeometryEntity.encloses(c, Line((0, 0), (1, 1))) is False
assert GeometryEntity.encloses(c, Circle((0, 0), 4))
assert GeometryEntity.encloses(c, Polygon(Point(0, 0), Point(1, 0), Point(0, 1)))
assert GeometryEntity.encloses(c, RegularPolygon(Point(8, 8), 1, 3)) is False
