def test_solveset_real_rational():
 assert (solveset_real(((x - (y ** 3)) / ((y ** 2) * sqrt((1 - (y ** 2))))), x) == FiniteSet((y ** 3)))
 assert (solveset_real((((2 * x) / (x + 2)) - 1), x) == FiniteSet(2))

def test_solveset_real_rational ( ) : assert ( solveset_real ( ( ( x - ( y ** 3 ) ) / ( ( y ** 2 ) * sqrt ( ( 1 - ( y ** 2 ) ) ) ) ) , x ) == FiniteSet ( ( y ** 3 ) ) ) assert ( solveset_real ( ( ( ( 2 * x ) / ( x + 2 ) ) - 1 ) , x ) == FiniteSet ( 2 ) )
test solveset_real for rational functions .