def test_undefined_function():
from sage.symbolic.ring import SR
from sage.calculus.var import function
from sympy import Symbol, Function
f = function('f')
sf = Function('f')
x, y = SR.var('x y')
sx = Symbol('x')
sy = Symbol('y')
assert f(x)._sympy_() == sf(sx)
assert f(x) == sf(sx)._sage_()
assert f(x, y)._sympy_() == sf(sx, sy)
assert f(x, y) == sf(sx, sy)._sage_()
assert f._sympy_() == sf
assert f == sf._sage_()
def test_undefined_function():
from sage.symbolic.ring import SR
from sage.calculus.var import function
from sympy import Symbol, Function
f = function('f')
sf = Function('f')
x,y = SR.var('x y')
sx = Symbol('x')
sy = Symbol('y')
assert f(x)._sympy_() == sf(sx)
assert f(x) == sf(sx)._sage_()
assert f(x,y)._sympy_() == sf(sx, sy)
assert f(x,y) == sf(sx, sy)._sage_()
assert f._sympy_() == sf
assert f == sf._sage_()
