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from dataclasses import dataclass |
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from typing import Union, Callable, Type |
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4
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from flask import Flask |
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from pydantic import ValidationError, NoneIsNotAllowedError, BoolError, BaseModel |
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from pydantic.error_wrappers import ErrorWrapper |
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from werkzeug.exceptions import HTTPException |
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from werkzeug.routing import RequestRedirect |
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10
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from app.hooks.error import broad_exception_handler |
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from tests import BaseTestCase |
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13
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14
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@dataclass |
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class ExceptionHandlingSpec: |
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error_handler_exception_or_code: Union[Type[Exception], int] |
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error_handler_func: Callable |
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exception_instance_to_handler_raises: Exception |
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21
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class TestError(BaseTestCase): |
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def setUp(self): |
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super(TestError, self).setUp() |
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25
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self.path = "/foo" |
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def add_route_raises_exception( |
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self, exception_handling_spec: ExceptionHandlingSpec |
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): |
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self.app = Flask(__name__) |
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self.app.register_error_handler( |
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32
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exception_handling_spec.error_handler_exception_or_code, |
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exception_handling_spec.error_handler_func, |
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) |
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self.client = self.app.test_client() |
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36
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@self.app.route(self.path) |
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def handler(): |
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raise exception_handling_spec.exception_instance_to_handler_raises |
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40
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41
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42
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class TestBroadExceptionHandler(TestError): |
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def test_http_exception(self): |
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for exception_cls in HTTPException.__subclasses__(): |
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if exception_cls is RequestRedirect or exception_cls().code == 412: |
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continue |
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48
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exception_instance = exception_cls() |
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49
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50
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self.add_route_raises_exception( |
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ExceptionHandlingSpec( |
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Exception, broad_exception_handler, exception_instance |
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) |
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) |
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56
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resp = self.request() |
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57
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58
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self.assertEqual(exception_instance.code, resp.status_code) |
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self.assertTrue(resp.is_json) |
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self.assertDictEqual({"error": exception_instance.description}, resp.json) |
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61
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62
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def test_pydantic_validation_error(self): |
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63
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self.add_route_raises_exception( |
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ExceptionHandlingSpec( |
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Exception, |
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broad_exception_handler, |
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ValidationError( |
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[ |
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ErrorWrapper(NoneIsNotAllowedError(), "foo"), |
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70
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ErrorWrapper(BoolError(), "bar"), |
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], |
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BaseModel, |
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), |
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) |
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) |
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77
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resp = self.request() |
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79
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self.assertEqual(400, resp.status_code) |
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self.assertDictEqual( |
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{ |
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"error": [ |
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{ |
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"loc": ["foo"], |
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"msg": "none is not an allowed value", |
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"type": "type_error.none.not_allowed", |
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}, |
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{ |
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"loc": ["bar"], |
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"msg": "value could not be parsed to a boolean", |
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91
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"type": "type_error.bool", |
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92
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}, |
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93
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] |
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94
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}, |
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95
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resp.json, |
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96
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) |
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97
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98
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def test_500(self): |
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99
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self.add_route_raises_exception( |
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100
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ExceptionHandlingSpec(Exception, broad_exception_handler, KeyError()) |
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101
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) |
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102
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103
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resp = self.request() |
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104
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105
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self.assertEqual(500, resp.status_code) |
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self.assertDictEqual({"error": ""}, resp.json) |
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107
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JoMingyu /
Flask-Large-Application-Example
