forked from goodboy/tractor
931 lines
27 KiB
Python
931 lines
27 KiB
Python
'''
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Low-level functional audits for our
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"capability based messaging"-spec feats.
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B~)
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'''
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import typing
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from typing import (
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Any,
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Type,
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Union,
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)
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from contextvars import (
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Context,
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)
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from msgspec import (
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structs,
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msgpack,
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Struct,
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ValidationError,
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)
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import pytest
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import tractor
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from tractor import (
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_state,
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MsgTypeError,
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)
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from tractor.msg import (
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_codec,
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_ctxvar_MsgCodec,
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NamespacePath,
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MsgCodec,
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mk_codec,
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apply_codec,
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current_codec,
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)
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from tractor.msg.types import (
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_payload_msgs,
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log,
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Msg,
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Started,
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mk_msg_spec,
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)
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import trio
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def mk_custom_codec(
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pld_spec: Union[Type]|Any,
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add_hooks: bool,
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) -> MsgCodec:
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'''
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Create custom `msgpack` enc/dec-hooks and set a `Decoder`
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which only loads `pld_spec` (like `NamespacePath`) types.
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'''
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uid: tuple[str, str] = tractor.current_actor().uid
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# XXX NOTE XXX: despite defining `NamespacePath` as a type
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# field on our `Msg.pld`, we still need a enc/dec_hook() pair
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# to cast to/from that type on the wire. See the docs:
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# https://jcristharif.com/msgspec/extending.html#mapping-to-from-native-types
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def enc_nsp(obj: Any) -> Any:
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print(f'{uid} ENC HOOK')
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match obj:
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case NamespacePath():
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print(
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f'{uid}: `NamespacePath`-Only ENCODE?\n'
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f'obj-> `{obj}`: {type(obj)}\n'
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)
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# if type(obj) != NamespacePath:
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# breakpoint()
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return str(obj)
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print(
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f'{uid}\n'
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'CUSTOM ENCODE\n'
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f'obj-arg-> `{obj}`: {type(obj)}\n'
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)
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logmsg: str = (
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f'{uid}\n'
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'FAILED ENCODE\n'
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f'obj-> `{obj}: {type(obj)}`\n'
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)
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raise NotImplementedError(logmsg)
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def dec_nsp(
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obj_type: Type,
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obj: Any,
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) -> Any:
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print(
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f'{uid}\n'
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'CUSTOM DECODE\n'
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f'type-arg-> {obj_type}\n'
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f'obj-arg-> `{obj}`: {type(obj)}\n'
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)
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nsp = None
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if (
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obj_type is NamespacePath
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and isinstance(obj, str)
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and ':' in obj
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):
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nsp = NamespacePath(obj)
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# TODO: we could built a generic handler using
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# JUST matching the obj_type part?
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# nsp = obj_type(obj)
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if nsp:
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print(f'Returning NSP instance: {nsp}')
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return nsp
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logmsg: str = (
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f'{uid}\n'
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'FAILED DECODE\n'
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f'type-> {obj_type}\n'
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f'obj-arg-> `{obj}`: {type(obj)}\n\n'
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f'current codec:\n'
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f'{current_codec()}\n'
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)
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# TODO: figure out the ignore subsys for this!
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# -[ ] option whether to defense-relay backc the msg
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# inside an `Invalid`/`Ignore`
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# -[ ] how to make this handling pluggable such that a
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# `Channel`/`MsgTransport` can intercept and process
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# back msgs either via exception handling or some other
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# signal?
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log.warning(logmsg)
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# NOTE: this delivers the invalid
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# value up to `msgspec`'s decoding
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# machinery for error raising.
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return obj
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# raise NotImplementedError(logmsg)
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nsp_codec: MsgCodec = mk_codec(
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ipc_pld_spec=pld_spec,
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# NOTE XXX: the encode hook MUST be used no matter what since
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# our `NamespacePath` is not any of a `Any` native type nor
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# a `msgspec.Struct` subtype - so `msgspec` has no way to know
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# how to encode it unless we provide the custom hook.
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#
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# AGAIN that is, regardless of whether we spec an
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# `Any`-decoded-pld the enc has no knowledge (by default)
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# how to enc `NamespacePath` (nsp), so we add a custom
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# hook to do that ALWAYS.
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enc_hook=enc_nsp if add_hooks else None,
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# XXX NOTE: pretty sure this is mutex with the `type=` to
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# `Decoder`? so it won't work in tandem with the
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# `ipc_pld_spec` passed above?
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dec_hook=dec_nsp if add_hooks else None,
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)
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return nsp_codec
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def chk_codec_applied(
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expect_codec: MsgCodec,
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enter_value: MsgCodec|None = None,
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) -> MsgCodec:
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'''
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buncha sanity checks ensuring that the IPC channel's
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context-vars are set to the expected codec and that are
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ctx-var wrapper APIs match the same.
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'''
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# TODO: play with tricyle again, bc this is supposed to work
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# the way we want?
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#
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# TreeVar
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# task: trio.Task = trio.lowlevel.current_task()
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# curr_codec = _ctxvar_MsgCodec.get_in(task)
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# ContextVar
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# task_ctx: Context = task.context
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# assert _ctxvar_MsgCodec in task_ctx
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# curr_codec: MsgCodec = task.context[_ctxvar_MsgCodec]
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# NOTE: currently we use this!
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# RunVar
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curr_codec: MsgCodec = current_codec()
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last_read_codec = _ctxvar_MsgCodec.get()
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# assert curr_codec is last_read_codec
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assert (
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(same_codec := expect_codec) is
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# returned from `mk_codec()`
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# yielded value from `apply_codec()`
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# read from current task's `contextvars.Context`
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curr_codec is
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last_read_codec
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# the default `msgspec` settings
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is not _codec._def_msgspec_codec
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is not _codec._def_tractor_codec
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)
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if enter_value:
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enter_value is same_codec
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def iter_maybe_sends(
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send_items: dict[Union[Type], Any] | list[tuple],
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ipc_pld_spec: Union[Type] | Any,
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add_codec_hooks: bool,
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codec: MsgCodec|None = None,
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) -> tuple[Any, bool]:
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if isinstance(send_items, dict):
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send_items = send_items.items()
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for (
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send_type_spec,
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send_value,
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) in send_items:
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expect_roundtrip: bool = False
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# values-to-typespec santiy
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send_type = type(send_value)
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assert send_type == send_type_spec or (
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(subtypes := getattr(send_type_spec, '__args__', None))
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and send_type in subtypes
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)
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spec_subtypes: set[Union[Type]] = (
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getattr(
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ipc_pld_spec,
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'__args__',
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{ipc_pld_spec,},
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)
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)
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send_in_spec: bool = (
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send_type == ipc_pld_spec
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or (
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ipc_pld_spec != Any
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and # presume `Union` of types
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send_type in spec_subtypes
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)
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or (
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ipc_pld_spec == Any
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and
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send_type != NamespacePath
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)
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)
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expect_roundtrip = (
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send_in_spec
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# any spec should support all other
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# builtin py values that we send
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# except our custom nsp type which
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# we should be able to send as long
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# as we provide the custom codec hooks.
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or (
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ipc_pld_spec == Any
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and
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send_type == NamespacePath
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and
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add_codec_hooks
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)
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)
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if codec is not None:
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# XXX FIRST XXX ensure roundtripping works
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# before touching any IPC primitives/APIs.
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wire_bytes: bytes = codec.encode(
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Started(
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cid='blahblah',
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pld=send_value,
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)
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)
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# NOTE: demonstrates the decoder loading
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# to via our native SCIPP msg-spec
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# (structurred-conc-inter-proc-protocol)
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# implemented as per,
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try:
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msg: Started = codec.decode(wire_bytes)
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if not expect_roundtrip:
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pytest.fail(
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f'NOT-EXPECTED able to roundtrip value given spec:\n'
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f'ipc_pld_spec -> {ipc_pld_spec}\n'
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f'value -> {send_value}: {send_type}\n'
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)
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pld = msg.pld
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assert pld == send_value
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except ValidationError:
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if expect_roundtrip:
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pytest.fail(
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f'EXPECTED to roundtrip value given spec:\n'
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f'ipc_pld_spec -> {ipc_pld_spec}\n'
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f'value -> {send_value}: {send_type}\n'
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)
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yield (
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str(send_type),
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send_value,
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expect_roundtrip,
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)
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def dec_type_union(
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type_names: list[str],
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) -> Type:
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'''
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Look up types by name, compile into a list and then create and
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return a `typing.Union` from the full set.
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'''
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import importlib
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types: list[Type] = []
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for type_name in type_names:
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for ns in [
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typing,
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importlib.import_module(__name__),
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]:
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if type_ref := getattr(
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ns,
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type_name,
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False,
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):
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types.append(type_ref)
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# special case handling only..
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# ipc_pld_spec: Union[Type] = eval(
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# pld_spec_str,
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# {}, # globals
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# {'typing': typing}, # locals
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# )
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return Union[*types]
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|
|
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def enc_type_union(
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union_or_type: Union[Type]|Type,
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) -> list[str]:
|
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'''
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Encode a type-union or single type to a list of type-name-strings
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ready for IPC interchange.
|
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'''
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type_strs: list[str] = []
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for typ in getattr(
|
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union_or_type,
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'__args__',
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{union_or_type,},
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):
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type_strs.append(typ.__qualname__)
|
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return type_strs
|
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|
|
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@tractor.context
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async def send_back_values(
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ctx: Context,
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expect_debug: bool,
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pld_spec_type_strs: list[str],
|
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add_hooks: bool,
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started_msg_bytes: bytes,
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expect_ipc_send: dict[str, tuple[Any, bool]],
|
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) -> None:
|
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'''
|
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Setup up a custom codec to load instances of `NamespacePath`
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and ensure we can round trip a func ref with our parent.
|
|
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'''
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uid: tuple = tractor.current_actor().uid
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# debug mode sanity check (prolly superfluous but, meh)
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assert expect_debug == _state.debug_mode()
|
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# init state in sub-actor should be default
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chk_codec_applied(
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expect_codec=_codec._def_tractor_codec,
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)
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# load pld spec from input str
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ipc_pld_spec = dec_type_union(
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pld_spec_type_strs,
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)
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pld_spec_str = str(ipc_pld_spec)
|
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# same as on parent side config.
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nsp_codec: MsgCodec = mk_custom_codec(
|
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pld_spec=ipc_pld_spec,
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add_hooks=add_hooks,
|
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)
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with (
|
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apply_codec(nsp_codec) as codec,
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):
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chk_codec_applied(
|
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expect_codec=nsp_codec,
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enter_value=codec,
|
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)
|
|
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print(
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f'{uid}: attempting `Started`-bytes DECODE..\n'
|
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)
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try:
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msg: Started = nsp_codec.decode(started_msg_bytes)
|
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expected_pld_spec_str: str = msg.pld
|
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assert pld_spec_str == expected_pld_spec_str
|
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|
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# TODO: maybe we should add our own wrapper error so as to
|
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# be interchange-lib agnostic?
|
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# -[ ] the error type is wtv is raised from the hook so we
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# could also require a type-class of errors for
|
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# indicating whether the hook-failure can be handled by
|
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# a nasty-dialog-unprot sub-sys?
|
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except ValidationError:
|
|
|
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# NOTE: only in the `Any` spec case do we expect this to
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# work since otherwise no spec covers a plain-ol'
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# `.pld: str`
|
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if pld_spec_str == 'Any':
|
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raise
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else:
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print(
|
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f'{uid}: (correctly) unable to DECODE `Started`-bytes\n'
|
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f'{started_msg_bytes}\n'
|
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)
|
|
|
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iter_send_val_items = iter(expect_ipc_send.values())
|
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sent: list[Any] = []
|
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for send_value, expect_send in iter_send_val_items:
|
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try:
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print(
|
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f'{uid}: attempting to `.started({send_value})`\n'
|
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f'=> expect_send: {expect_send}\n'
|
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f'SINCE, ipc_pld_spec: {ipc_pld_spec}\n'
|
|
f'AND, codec: {codec}\n'
|
|
)
|
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await ctx.started(send_value)
|
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sent.append(send_value)
|
|
if not expect_send:
|
|
|
|
# XXX NOTE XXX THIS WON'T WORK WITHOUT SPECIAL
|
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# `str` handling! or special debug mode IPC
|
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# msgs!
|
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await tractor.pause()
|
|
|
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raise RuntimeError(
|
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f'NOT-EXPECTED able to roundtrip value given spec:\n'
|
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f'ipc_pld_spec -> {ipc_pld_spec}\n'
|
|
f'value -> {send_value}: {type(send_value)}\n'
|
|
)
|
|
|
|
break # move on to streaming block..
|
|
|
|
except tractor.MsgTypeError:
|
|
await tractor.pause()
|
|
|
|
if expect_send:
|
|
raise RuntimeError(
|
|
f'EXPECTED to `.started()` value given spec:\n'
|
|
f'ipc_pld_spec -> {ipc_pld_spec}\n'
|
|
f'value -> {send_value}: {type(send_value)}\n'
|
|
)
|
|
|
|
async with ctx.open_stream() as ipc:
|
|
print(
|
|
f'{uid}: Entering streaming block to send remaining values..'
|
|
)
|
|
|
|
for send_value, expect_send in iter_send_val_items:
|
|
send_type: Type = type(send_value)
|
|
print(
|
|
'------ - ------\n'
|
|
f'{uid}: SENDING NEXT VALUE\n'
|
|
f'ipc_pld_spec: {ipc_pld_spec}\n'
|
|
f'expect_send: {expect_send}\n'
|
|
f'val: {send_value}\n'
|
|
'------ - ------\n'
|
|
)
|
|
try:
|
|
await ipc.send(send_value)
|
|
print(f'***\n{uid}-CHILD sent {send_value!r}\n***\n')
|
|
sent.append(send_value)
|
|
|
|
# NOTE: should only raise above on
|
|
# `.started()` or a `Return`
|
|
# if not expect_send:
|
|
# raise RuntimeError(
|
|
# f'NOT-EXPECTED able to roundtrip value given spec:\n'
|
|
# f'ipc_pld_spec -> {ipc_pld_spec}\n'
|
|
# f'value -> {send_value}: {send_type}\n'
|
|
# )
|
|
|
|
except ValidationError:
|
|
print(f'{uid} FAILED TO SEND {send_value}!')
|
|
|
|
# await tractor.pause()
|
|
if expect_send:
|
|
raise RuntimeError(
|
|
f'EXPECTED to roundtrip value given spec:\n'
|
|
f'ipc_pld_spec -> {ipc_pld_spec}\n'
|
|
f'value -> {send_value}: {send_type}\n'
|
|
)
|
|
# continue
|
|
|
|
else:
|
|
print(
|
|
f'{uid}: finished sending all values\n'
|
|
'Should be exiting stream block!\n'
|
|
)
|
|
|
|
print(f'{uid}: exited streaming block!')
|
|
|
|
# TODO: this won't be true bc in streaming phase we DO NOT
|
|
# msgspec check outbound msgs!
|
|
# -[ ] once we implement the receiver side `InvalidMsg`
|
|
# then we can expect it here?
|
|
# assert (
|
|
# len(sent)
|
|
# ==
|
|
# len([val
|
|
# for val, expect in
|
|
# expect_ipc_send.values()
|
|
# if expect is True])
|
|
# )
|
|
|
|
|
|
def ex_func(*args):
|
|
print(f'ex_func({args})')
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
'ipc_pld_spec',
|
|
[
|
|
Any,
|
|
NamespacePath,
|
|
NamespacePath|None, # the "maybe" spec Bo
|
|
],
|
|
ids=[
|
|
'any_type',
|
|
'nsp_type',
|
|
'maybe_nsp_type',
|
|
]
|
|
)
|
|
@pytest.mark.parametrize(
|
|
'add_codec_hooks',
|
|
[
|
|
True,
|
|
False,
|
|
],
|
|
ids=['use_codec_hooks', 'no_codec_hooks'],
|
|
)
|
|
def test_codec_hooks_mod(
|
|
debug_mode: bool,
|
|
ipc_pld_spec: Union[Type]|Any,
|
|
# send_value: None|str|NamespacePath,
|
|
add_codec_hooks: bool,
|
|
):
|
|
'''
|
|
Audit the `.msg.MsgCodec` override apis details given our impl
|
|
uses `contextvars` to accomplish per `trio` task codec
|
|
application around an inter-proc-task-comms context.
|
|
|
|
'''
|
|
async def main():
|
|
nsp = NamespacePath.from_ref(ex_func)
|
|
send_items: dict[Union, Any] = {
|
|
Union[None]: None,
|
|
Union[NamespacePath]: nsp,
|
|
Union[str]: str(nsp),
|
|
}
|
|
|
|
# init default state for actor
|
|
chk_codec_applied(
|
|
expect_codec=_codec._def_tractor_codec,
|
|
)
|
|
|
|
async with tractor.open_nursery(
|
|
debug_mode=debug_mode,
|
|
) as an:
|
|
p: tractor.Portal = await an.start_actor(
|
|
'sub',
|
|
enable_modules=[__name__],
|
|
)
|
|
|
|
# TODO: 2 cases:
|
|
# - codec not modified -> decode nsp as `str`
|
|
# - codec modified with hooks -> decode nsp as
|
|
# `NamespacePath`
|
|
nsp_codec: MsgCodec = mk_custom_codec(
|
|
pld_spec=ipc_pld_spec,
|
|
add_hooks=add_codec_hooks,
|
|
)
|
|
with apply_codec(nsp_codec) as codec:
|
|
chk_codec_applied(
|
|
expect_codec=nsp_codec,
|
|
enter_value=codec,
|
|
)
|
|
|
|
expect_ipc_send: dict[str, tuple[Any, bool]] = {}
|
|
|
|
report: str = (
|
|
'Parent report on send values with\n'
|
|
f'ipc_pld_spec: {ipc_pld_spec}\n'
|
|
' ------ - ------\n'
|
|
)
|
|
for val_type_str, val, expect_send in iter_maybe_sends(
|
|
send_items,
|
|
ipc_pld_spec,
|
|
add_codec_hooks=add_codec_hooks,
|
|
):
|
|
report += (
|
|
f'send_value: {val}: {type(val)} '
|
|
f'=> expect_send: {expect_send}\n'
|
|
)
|
|
expect_ipc_send[val_type_str] = (val, expect_send)
|
|
|
|
print(
|
|
report +
|
|
' ------ - ------\n'
|
|
)
|
|
assert len(expect_ipc_send) == len(send_items)
|
|
# now try over real IPC with a the subactor
|
|
# expect_ipc_rountrip: bool = True
|
|
expected_started = Started(
|
|
cid='cid',
|
|
pld=str(ipc_pld_spec),
|
|
)
|
|
# build list of values we expect to receive from
|
|
# the subactor.
|
|
expect_to_send: list[Any] = [
|
|
val
|
|
for val, expect_send in expect_ipc_send.values()
|
|
if expect_send
|
|
]
|
|
|
|
pld_spec_type_strs: list[str] = enc_type_union(ipc_pld_spec)
|
|
|
|
# XXX should raise an mte (`MsgTypeError`)
|
|
# when `add_codec_hooks == False` bc the input
|
|
# `expect_ipc_send` kwarg has a nsp which can't be
|
|
# serialized!
|
|
#
|
|
# TODO:can we ensure this happens from the
|
|
# `Return`-side (aka the sub) as well?
|
|
if not add_codec_hooks:
|
|
try:
|
|
async with p.open_context(
|
|
send_back_values,
|
|
expect_debug=debug_mode,
|
|
pld_spec_type_strs=pld_spec_type_strs,
|
|
add_hooks=add_codec_hooks,
|
|
started_msg_bytes=nsp_codec.encode(expected_started),
|
|
|
|
# XXX NOTE bc we send a `NamespacePath` in this kwarg
|
|
expect_ipc_send=expect_ipc_send,
|
|
|
|
) as (ctx, first):
|
|
pytest.fail('ctx should fail to open without custom enc_hook!?')
|
|
|
|
# this test passes bc we can go no further!
|
|
except MsgTypeError:
|
|
# teardown nursery
|
|
await p.cancel_actor()
|
|
return
|
|
|
|
# TODO: send the original nsp here and
|
|
# test with `limit_msg_spec()` above?
|
|
# await tractor.pause()
|
|
print('PARENT opening IPC ctx!\n')
|
|
async with (
|
|
|
|
# XXX should raise an mte (`MsgTypeError`)
|
|
# when `add_codec_hooks == False`..
|
|
p.open_context(
|
|
send_back_values,
|
|
expect_debug=debug_mode,
|
|
pld_spec_type_strs=pld_spec_type_strs,
|
|
add_hooks=add_codec_hooks,
|
|
started_msg_bytes=nsp_codec.encode(expected_started),
|
|
expect_ipc_send=expect_ipc_send,
|
|
) as (ctx, first),
|
|
|
|
ctx.open_stream() as ipc,
|
|
):
|
|
# ensure codec is still applied across
|
|
# `tractor.Context` + its embedded nursery.
|
|
chk_codec_applied(
|
|
expect_codec=nsp_codec,
|
|
enter_value=codec,
|
|
)
|
|
print(
|
|
'root: ENTERING CONTEXT BLOCK\n'
|
|
f'type(first): {type(first)}\n'
|
|
f'first: {first}\n'
|
|
)
|
|
expect_to_send.remove(first)
|
|
|
|
# TODO: explicit values we expect depending on
|
|
# codec config!
|
|
# assert first == first_val
|
|
# assert first == f'{__name__}:ex_func'
|
|
|
|
async for next_sent in ipc:
|
|
print(
|
|
'Parent: child sent next value\n'
|
|
f'{next_sent}: {type(next_sent)}\n'
|
|
)
|
|
if expect_to_send:
|
|
expect_to_send.remove(next_sent)
|
|
else:
|
|
print('PARENT should terminate stream loop + block!')
|
|
|
|
# all sent values should have arrived!
|
|
assert not expect_to_send
|
|
|
|
await p.cancel_actor()
|
|
|
|
trio.run(main)
|
|
|
|
|
|
def chk_pld_type(
|
|
payload_spec: Type[Struct]|Any,
|
|
pld: Any,
|
|
|
|
expect_roundtrip: bool|None = None,
|
|
|
|
) -> bool:
|
|
|
|
pld_val_type: Type = type(pld)
|
|
|
|
# TODO: verify that the overridden subtypes
|
|
# DO NOT have modified type-annots from original!
|
|
# 'Start', .pld: FuncSpec
|
|
# 'StartAck', .pld: IpcCtxSpec
|
|
# 'Stop', .pld: UNSEt
|
|
# 'Error', .pld: ErrorData
|
|
|
|
codec: MsgCodec = mk_codec(
|
|
# NOTE: this ONLY accepts `Msg.pld` fields of a specified
|
|
# type union.
|
|
ipc_pld_spec=payload_spec,
|
|
)
|
|
|
|
# make a one-off dec to compare with our `MsgCodec` instance
|
|
# which does the below `mk_msg_spec()` call internally
|
|
ipc_msg_spec: Union[Type[Struct]]
|
|
msg_types: list[Msg[payload_spec]]
|
|
(
|
|
ipc_msg_spec,
|
|
msg_types,
|
|
) = mk_msg_spec(
|
|
payload_type_union=payload_spec,
|
|
)
|
|
_enc = msgpack.Encoder()
|
|
_dec = msgpack.Decoder(
|
|
type=ipc_msg_spec or Any, # like `Msg[Any]`
|
|
)
|
|
|
|
assert (
|
|
payload_spec
|
|
==
|
|
codec.pld_spec
|
|
)
|
|
|
|
# assert codec.dec == dec
|
|
#
|
|
# ^-XXX-^ not sure why these aren't "equal" but when cast
|
|
# to `str` they seem to match ?? .. kk
|
|
|
|
assert (
|
|
str(ipc_msg_spec)
|
|
==
|
|
str(codec.msg_spec)
|
|
==
|
|
str(_dec.type)
|
|
==
|
|
str(codec.dec.type)
|
|
)
|
|
|
|
# verify the boxed-type for all variable payload-type msgs.
|
|
if not msg_types:
|
|
breakpoint()
|
|
|
|
roundtrip: bool|None = None
|
|
pld_spec_msg_names: list[str] = [
|
|
td.__name__ for td in _payload_msgs
|
|
]
|
|
for typedef in msg_types:
|
|
|
|
skip_runtime_msg: bool = typedef.__name__ not in pld_spec_msg_names
|
|
if skip_runtime_msg:
|
|
continue
|
|
|
|
pld_field = structs.fields(typedef)[1]
|
|
assert pld_field.type is payload_spec # TODO-^ does this need to work to get all subtypes to adhere?
|
|
|
|
kwargs: dict[str, Any] = {
|
|
'cid': '666',
|
|
'pld': pld,
|
|
}
|
|
enc_msg: Msg = typedef(**kwargs)
|
|
|
|
_wire_bytes: bytes = _enc.encode(enc_msg)
|
|
wire_bytes: bytes = codec.enc.encode(enc_msg)
|
|
assert _wire_bytes == wire_bytes
|
|
|
|
ve: ValidationError|None = None
|
|
try:
|
|
dec_msg = codec.dec.decode(wire_bytes)
|
|
_dec_msg = _dec.decode(wire_bytes)
|
|
|
|
# decoded msg and thus payload should be exactly same!
|
|
assert (roundtrip := (
|
|
_dec_msg
|
|
==
|
|
dec_msg
|
|
==
|
|
enc_msg
|
|
))
|
|
|
|
if (
|
|
expect_roundtrip is not None
|
|
and expect_roundtrip != roundtrip
|
|
):
|
|
breakpoint()
|
|
|
|
assert (
|
|
pld
|
|
==
|
|
dec_msg.pld
|
|
==
|
|
enc_msg.pld
|
|
)
|
|
# assert (roundtrip := (_dec_msg == enc_msg))
|
|
|
|
except ValidationError as _ve:
|
|
ve = _ve
|
|
roundtrip: bool = False
|
|
if pld_val_type is payload_spec:
|
|
raise ValueError(
|
|
'Got `ValidationError` despite type-var match!?\n'
|
|
f'pld_val_type: {pld_val_type}\n'
|
|
f'payload_type: {payload_spec}\n'
|
|
) from ve
|
|
|
|
else:
|
|
# ow we good cuz the pld spec mismatched.
|
|
print(
|
|
'Got expected `ValidationError` since,\n'
|
|
f'{pld_val_type} is not {payload_spec}\n'
|
|
)
|
|
else:
|
|
if (
|
|
payload_spec is not Any
|
|
and
|
|
pld_val_type is not payload_spec
|
|
):
|
|
raise ValueError(
|
|
'DID NOT `ValidationError` despite expected type match!?\n'
|
|
f'pld_val_type: {pld_val_type}\n'
|
|
f'payload_type: {payload_spec}\n'
|
|
)
|
|
|
|
# full code decode should always be attempted!
|
|
if roundtrip is None:
|
|
breakpoint()
|
|
|
|
return roundtrip
|
|
|
|
|
|
def test_limit_msgspec():
|
|
|
|
async def main():
|
|
async with tractor.open_root_actor(
|
|
debug_mode=True
|
|
):
|
|
|
|
# ensure we can round-trip a boxing `Msg`
|
|
assert chk_pld_type(
|
|
# Msg,
|
|
Any,
|
|
None,
|
|
expect_roundtrip=True,
|
|
)
|
|
|
|
# TODO: don't need this any more right since
|
|
# `msgspec>=0.15` has the nice generics stuff yah??
|
|
#
|
|
# manually override the type annot of the payload
|
|
# field and ensure it propagates to all msg-subtypes.
|
|
# Msg.__annotations__['pld'] = Any
|
|
|
|
# verify that a mis-typed payload value won't decode
|
|
assert not chk_pld_type(
|
|
# Msg,
|
|
int,
|
|
pld='doggy',
|
|
)
|
|
|
|
# parametrize the boxed `.pld` type as a custom-struct
|
|
# and ensure that parametrization propagates
|
|
# to all payload-msg-spec-able subtypes!
|
|
class CustomPayload(Struct):
|
|
name: str
|
|
value: Any
|
|
|
|
assert not chk_pld_type(
|
|
# Msg,
|
|
CustomPayload,
|
|
pld='doggy',
|
|
)
|
|
|
|
assert chk_pld_type(
|
|
# Msg,
|
|
CustomPayload,
|
|
pld=CustomPayload(name='doggy', value='urmom')
|
|
)
|
|
|
|
# uhh bc we can `.pause_from_sync()` now! :surfer:
|
|
# breakpoint()
|
|
|
|
trio.run(main)
|