from decimal import *

Objects = [Context, Decimal, dict, list, int, float, None, True, False, 1, 2]

def gen_unary():
    for x in Objects:
        yield x

def gen_binary():
    for x in Objects:
        for y in Objects:
            yield x, y

def testit(obj, attr, args, reclevel):
    ex = result = None
    try:
        result = getattr(obj, attr)(*args)
    except Exception as e:
        ex = e.__class__
    if ex is None and reclevel == 0:
        test_context_api(result, reclevel=1)

def test_context_api(obj=Context, reclevel=0):
    for attr in dir(obj):
        testit(obj, attr, (), reclevel)
        for x in gen_unary():
            testit(obj, attr, (x,), reclevel) 
        for x, y in gen_binary():
            testit(obj, attr, (x, y), reclevel) 

test_context_api()