47 lines
2.6 KiB
Python
47 lines
2.6 KiB
Python
import json, sys, msgpack
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print(sys.version.split()[0], msgpack.version)
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def pk(v): return msgpack.packb(v, use_bin_type=True)
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def up(b): return msgpack.unpackb(b, raw=False)
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def jd(v): return json.dumps(v, ensure_ascii=False, sort_keys=True).encode()
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cases = {"dict": {"schema":"x","n":1}, "list":[1,2], "str":"hi", "digit":5, "neg":-3, "true":True, "null":None, "float":1.5, "bigdigit":12}
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print("== msgpack.unpackb on JSON payloads")
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for k,v in cases.items():
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b = jd(v)
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try: r = up(b); print(k, b, "->ACCEPTED", repr(r))
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except Exception as e: print(k, b, "->", type(e).__module__+"."+type(e).__name__, isinstance(e, ValueError), str(e)[:60])
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print("== json.loads on msgpack payloads")
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for k,v in cases.items():
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b = pk(v)
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try: r = json.loads(b.decode("utf-8")); print(k, b, "->ACCEPTED", repr(r))
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except Exception as e: print(k, b, "->", type(e).__name__, str(e)[:50])
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print("== semantic differences, value -> json roundtrip vs msgpack roundtrip")
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diffs = {"intkeys": {1:"a"}, "tuple": (1,2), "bytes": b"ab", "bigint": 2**70, "nan": float("nan"), "boolkey": {True:1}, "nested_intkey": {"a":{2:3}}, "set": {1,2}, "order": {"b":1,"a":2}}
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for k,v in diffs.items():
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out=[]
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try: out.append("json:"+repr(json.loads(jd(v))))
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except Exception as e: out.append("json:"+type(e).__name__)
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try: b=pk(v)
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except Exception as e: out.append("pack:"+type(e).__name__+":"+str(e)[:40]); print(k, out); continue
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try: out.append("mp:"+repr(up(b)))
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except Exception as e: out.append("unpack:"+type(e).__name__+":"+str(e)[:60])
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try: out.append("mp_nonstrict:"+repr(msgpack.unpackb(b, raw=False, strict_map_key=False)))
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except Exception as e: out.append("ns:"+type(e).__name__)
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print(k, out)
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print("== custom node classes")
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import collections, types
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class OnlyIter:
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def __iter__(self): return iter([1])
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for k,v in {"deque":collections.deque([1]), "mappingproxy":types.MappingProxyType({"a":1}), "userlist":collections.UserList([1]), "onlyiter":OnlyIter(), "frozenset":frozenset([1]), "userdict":collections.UserDict({"a":1})}.items():
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r=[]
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for name,f in (("pack",pk),("json",jd)):
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try: f(v); r.append(name+":ok")
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except Exception as e: r.append(name+":"+type(e).__name__)
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print(k, r)
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print("== JSON read recursion threshold")
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for d in (900, 1000, 3000, 5000, 10000, 100000):
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try: json.loads("["*d + "]"*d); print(d, "ok")
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except RecursionError: print(d, "RecursionError")
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print("== msgpack read deep")
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for d in (300, 1000, 2000, 100000):
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try: up(b"\x91"*d + b"\xc0"); print(d,"ok")
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except Exception as e: print(d, type(e).__module__, type(e).__name__)
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