Unknown value for enum

[zhaozkTHU]

Summary

Unknown value for enum error in from_json

Reproduction Steps

syntax = "proto3";

package hello;

enum Test {
    TestUnset = 0;
    Test1 = 1;
    Test2 = 2;
}

message Greeting {
    repeated Test test = 1;
}

# Generated by the protocol buffer compiler.  DO NOT EDIT!
# sources: test.proto
# plugin: python-betterproto
# This file has been @generated

from dataclasses import dataclass
from typing import (
    List,
)

import betterproto


class Test(betterproto.Enum):
    TestUnset = 0
    Test1 = 1
    Test2 = 2


@dataclass(eq=False, repr=False)
class Greeting(betterproto.Message):
    test: List["Test"] = betterproto.enum_field(1)

import hello
JSON_STR = """
{
    "test": [1]
}
"""
greeting = hello.Greeting().from_json(JSON_STR)

Expected Results

Should parse correct

Actual Results

  File "/opt/homebrew/Caskroom/miniconda/base/envs/platform/lib/python3.12/site-packages/betterproto/__init__.py", line 1690, in from_json
    return self.from_dict(json.loads(value))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Caskroom/miniconda/base/envs/platform/lib/python3.12/site-packages/betterproto/__init__.py", line 1630, in from_dict
    for field, value in self._from_dict_init(value).items():
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Caskroom/miniconda/base/envs/platform/lib/python3.12/site-packages/betterproto/__init__.py", line 1581, in _from_dict_init
    value = [enum_cls.from_string(e) for e in value]
             ^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Caskroom/miniconda/base/envs/platform/lib/python3.12/site-packages/betterproto/enum.py", line 202, in from_string
    raise ValueError(f"Unknown value {name} for enum {cls.__name__}") from e
ValueError: Unknown value 1 for enum Test

System Information

libprotoc 29.3
Python 3.12.9
Name: betterproto
Version: 2.0.0b7
Summary: A better Protobuf / gRPC generator & library
Home-page: https://github.com/danielgtaylor/python-betterproto
Author: Daniel G. Taylor
Author-email: danielgtaylor@gmail.com
License: MIT
Location: /opt/homebrew/Caskroom/miniconda/base/envs/platform/lib/python3.12/site-packages
Requires: grpclib, python-dateutil, typing-extensions
Required-by: platform-sdk

Checklist

• I have searched the issues for duplicates.
• I have shown the entire traceback, if possible.
• I have verified this issue occurs on the latest prelease of betterproto which can be installed using pip install -U --pre betterproto, if possible.