Function test_factorial

02-array-seq/lispy/py3.9/examples_test.py:136–139

()

(! 42)
"""
def test_factorial():
    got = run(fact_src)
    assert got == 1405006117752879898543142606244511569936384000000000
    assert got == math.factorial(42)

closure_src = """
(define make-adder