def test_function():
    f = Function('f')
    l, x = map(Symbol, 'lx')
    assert exp(l(x))*l(x)/exp(l(x)) == l(x)
    assert exp(f(x))/f(x)/exp(f(x)) == f(x)
dataset/ETHPy150Open sympy/sympy/sympy/core/tests/test_eval.py/test_function/operator `*` -> `/`