| 1 | from __future__ import annotations
|
|---|
| 2 | from abc import ABC
|
|---|
| 3 | from datetime import datetime
|
|---|
| 4 | from decimal import Decimal
|
|---|
| 5 | import json
|
|---|
| 6 | import re
|
|---|
| 7 | import sys, traceback
|
|---|
| 8 | from typing import Dict, List, Set, Any, Union, Optional, Collection, Type
|
|---|
| 9 | import unittest
|
|---|
| 10 | from uuid import uuid4, UUID
|
|---|
| 11 |
|
|---|
| 12 | from pyson.Deserializer import Deserializer
|
|---|
| 13 | from pyson.Serializer import Serializer
|
|---|
| 14 | from pyson.JsonSerialize import JsonSerialize
|
|---|
| 15 | from pyson.JsonDeserialize import JsonDeserialize
|
|---|
| 16 | from pyson.JsonGetter import JsonGetter
|
|---|
| 17 | from pyson.JsonSubTypes import JsonSubTypes
|
|---|
| 18 | from pyson.JsonTypeInfo import Id, As
|
|---|
| 19 | from pyson.JsonTypeInfo import JsonTypeInfo
|
|---|
| 20 | from pyson.JsonValue import JsonValue
|
|---|
| 21 | from pyson.ObjectMapper import ObjectMapper
|
|---|
| 22 | from pickle import NONE
|
|---|
| 23 | from test.MyDeserializer import ValueDeserializer2
|
|---|
| 24 | from cgitb import reset
|
|---|
| 25 |
|
|---|
| 26 | class SuperSimple:
|
|---|
| 27 | def __init__(self, a:Optional[int]):
|
|---|
| 28 | self.a=a
|
|---|
| 29 | def __eq__(self, other):
|
|---|
| 30 | return isinstance(other, self.__class__) and \
|
|---|
| 31 | self.a==other.a
|
|---|
| 32 | def getA(self):
|
|---|
| 33 | return self.a
|
|---|
| 34 | def __repr__(self):
|
|---|
| 35 | return "SuperSimple::"+str(self.a)
|
|---|
| 36 | def __hash__(self):
|
|---|
| 37 | return hash(self.a)
|
|---|
| 38 |
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 | # deserializer DROPS FIRST CHAR from string and assumes rest is an int.
|
|---|
| 42 | # Then returns Simple(int)
|
|---|
| 43 | class ValueDeserializer(Deserializer):
|
|---|
| 44 | def __hash__(self):
|
|---|
| 45 | return hash(self.geta())
|
|---|
| 46 | def deserialize(self, data:object, clas: object)-> object:
|
|---|
| 47 | if type(data)!=str:
|
|---|
| 48 | raise ValueError("Expected str starting with '$', got "+str(data))
|
|---|
| 49 | return Simple(int(data[1:]))
|
|---|
| 50 |
|
|---|
| 51 | # serializes Simple object, just prefixing its value (as string) with "$"
|
|---|
| 52 | class ValueSerializer(Serializer):
|
|---|
| 53 | def serialize(self, obj:object)-> object:
|
|---|
| 54 | if not isinstance(obj, Simple):
|
|---|
| 55 | raise ValueError("Expected Dimple object")
|
|---|
| 56 | return "$" + str(obj.geta())
|
|---|
| 57 |
|
|---|
| 58 | class Basic:
|
|---|
| 59 | def __init__(self, v:float):
|
|---|
| 60 | self._v=v
|
|---|
| 61 | def __eq__(self, other):
|
|---|
| 62 | return isinstance(other, self.__class__) and \
|
|---|
| 63 | self._v==other._v
|
|---|
| 64 | def getV(self):
|
|---|
| 65 | return self._v
|
|---|
| 66 | def __repr__(self):
|
|---|
| 67 | return "Basic:"+str(self._v)
|
|---|
| 68 | def __hash__(self):
|
|---|
| 69 | return hash(self._v)
|
|---|
| 70 |
|
|---|
| 71 | @JsonDeserialize(ValueDeserializer)
|
|---|
| 72 | @JsonSerialize(ValueSerializer)
|
|---|
| 73 | class Simple:
|
|---|
| 74 | def __init__(self, a:int):
|
|---|
| 75 | self._a=a
|
|---|
| 76 | def geta(self)->int:
|
|---|
| 77 | return self._a
|
|---|
| 78 | def __eq__(self, other):
|
|---|
| 79 | return isinstance(other, self.__class__) and \
|
|---|
| 80 | self._a==other._a
|
|---|
| 81 | def __repr__(self):
|
|---|
| 82 | return "Simple:"+str(self._a)
|
|---|
| 83 | def __hash__(self):
|
|---|
| 84 | return hash(self._a)
|
|---|
| 85 |
|
|---|
| 86 |
|
|---|
| 87 |
|
|---|
| 88 | @JsonDeserialize(ValueDeserializer2)
|
|---|
| 89 | class Simple2:
|
|---|
| 90 | def __init__(self, a:int):
|
|---|
| 91 | self._a=a
|
|---|
| 92 | def geta(self)->int:
|
|---|
| 93 | return self._a
|
|---|
| 94 | def __eq__(self, other):
|
|---|
| 95 | return isinstance(other, self.__class__) and \
|
|---|
| 96 | self._a==other._a
|
|---|
| 97 | def __repr__(self):
|
|---|
| 98 | return self._name+","+str(self._a)
|
|---|
| 99 |
|
|---|
| 100 | #None cancels out the existing deserializer.
|
|---|
| 101 | # parsing with str should now fail.
|
|---|
| 102 | @JsonDeserialize(None)
|
|---|
| 103 | class Simple3 (Simple):
|
|---|
| 104 | pass
|
|---|
| 105 |
|
|---|
| 106 |
|
|---|
| 107 | class MyList:
|
|---|
| 108 | def __init__(self, data: List[Simple] ):
|
|---|
| 109 | self.data=data
|
|---|
| 110 | def getData(self)->List[Simple]:
|
|---|
| 111 | return self.data
|
|---|
| 112 |
|
|---|
| 113 | class BasicDict:
|
|---|
| 114 | def __init__(self, data: Dict[Basic,Basic] ):
|
|---|
| 115 | self.data=data
|
|---|
| 116 | def getData(self)->Dict[Basic,Basic]:
|
|---|
| 117 | return self.data
|
|---|
| 118 | def __repr__(self):
|
|---|
| 119 | return "BasicDict:"+str(self.data)
|
|---|
| 120 | def __eq__(self, other):
|
|---|
| 121 | return isinstance(other, self.__class__) and \
|
|---|
| 122 | self.data==other.data
|
|---|
| 123 |
|
|---|
| 124 |
|
|---|
| 125 | class SimpleDict:
|
|---|
| 126 | def __init__(self, data: Dict[Simple,Simple] ):
|
|---|
| 127 | self.data=data
|
|---|
| 128 | def getData(self)->Dict[Simple,Simple]:
|
|---|
| 129 | return self.data
|
|---|
| 130 | def __eq__(self, other):
|
|---|
| 131 | return isinstance(other, self.__class__) and \
|
|---|
| 132 | self.data==other.data
|
|---|
| 133 | def __repr__(self):
|
|---|
| 134 | return "SimpleDict:"+str(self.data)
|
|---|
| 135 |
|
|---|
| 136 |
|
|---|
| 137 | class MyOptionalString:
|
|---|
| 138 | def __init__(self, s:Optional[str]):
|
|---|
| 139 | self.data:Optional[str] = s
|
|---|
| 140 | def getData(self)->Optional[str]:
|
|---|
| 141 | return self.data
|
|---|
| 142 | def __eq__(self, other):
|
|---|
| 143 | return isinstance(other, self.__class__) and \
|
|---|
| 144 | self.data==other.data
|
|---|
| 145 | def __repr__(self):
|
|---|
| 146 | return "MyOptionalString:"+str(self.data)
|
|---|
| 147 |
|
|---|
| 148 |
|
|---|
| 149 | @JsonSubTypes(['test.DeserializerTest.A','test.DeserializerTest.B','test.DeserializerTest.C'])
|
|---|
| 150 | @JsonTypeInfo(use=Id.NAME, include=As.WRAPPER_OBJECT)
|
|---|
| 151 | class Root:
|
|---|
| 152 | def __init__(self, data: int ):
|
|---|
| 153 | self.data:int=data
|
|---|
| 154 | def getData(self)->int:
|
|---|
| 155 | return self.data
|
|---|
| 156 | def __eq__(self, other):
|
|---|
| 157 | return isinstance(other, self.__class__) and \
|
|---|
| 158 | self.data==other.data
|
|---|
| 159 | def __repr__(self):
|
|---|
| 160 | return type(self).__name__ + "/" + str(self.data)
|
|---|
| 161 | def __hash__(self):
|
|---|
| 162 | return 0
|
|---|
| 163 |
|
|---|
| 164 |
|
|---|
| 165 | class A(Root):
|
|---|
| 166 | pass
|
|---|
| 167 |
|
|---|
| 168 | class B(Root):
|
|---|
| 169 | pass
|
|---|
| 170 |
|
|---|
| 171 | class C(Root):
|
|---|
| 172 | def __init__(self, data:int, name: str):
|
|---|
| 173 | super().__init__(data)
|
|---|
| 174 | self.name = name
|
|---|
| 175 | def __eq__(self, other):
|
|---|
| 176 | return isinstance(other, self.__class__) and \
|
|---|
| 177 | self.data==other.data and self.name==other.name
|
|---|
| 178 | def __repr__(self):
|
|---|
| 179 | return super().__repr__()+","+self.name
|
|---|
| 180 |
|
|---|
| 181 |
|
|---|
| 182 |
|
|---|
| 183 |
|
|---|
| 184 | class BaseValueDeserializer (Deserializer):
|
|---|
| 185 | def deserialize(self, data:object, clas: object) -> 'BaseValue':
|
|---|
| 186 | if isinstance(data,str):
|
|---|
| 187 | return BaseDiscreteValue(data)
|
|---|
| 188 | raise ValueError("Expected number or double quoted string but found " + str(data)
|
|---|
| 189 | + " of type " + str(type(data)))
|
|---|
| 190 |
|
|---|
| 191 | @JsonDeserialize(using=BaseValueDeserializer)
|
|---|
| 192 | class BaseValue(ABC):
|
|---|
| 193 | def __init__(self, value):
|
|---|
| 194 | self._value = value;
|
|---|
| 195 |
|
|---|
| 196 | @JsonValue()
|
|---|
| 197 | def getValue(self) -> str:
|
|---|
| 198 | return self._value;
|
|---|
| 199 |
|
|---|
| 200 | #disable parent deserializer. This is essential #331
|
|---|
| 201 | #@JsonDeserialize(using=None)
|
|---|
| 202 | class BaseDiscreteValue(BaseValue):
|
|---|
| 203 | def __init__(self, value:str):
|
|---|
| 204 | self.__value=value
|
|---|
| 205 | @JsonValue()
|
|---|
| 206 | def getValue(self)->str:
|
|---|
| 207 | return self.__value
|
|---|
| 208 |
|
|---|
| 209 |
|
|---|
| 210 | class DeserializerTest(unittest.TestCase):
|
|---|
| 211 | '''
|
|---|
| 212 | Test a lot of back-and-forth cases.
|
|---|
| 213 | FIXME Can we make this a parameterized test?
|
|---|
| 214 | '''
|
|---|
| 215 | pyson=ObjectMapper()
|
|---|
| 216 | mixedList:List[Root] = [A(1), B(1)]
|
|---|
| 217 | mixedlistjson:List = [{'A': {'data': 1}}, {'B': {'data': 1}}]
|
|---|
| 218 |
|
|---|
| 219 | mixedDict:Dict[Root,int] = {A(1):1, B(1):2}
|
|---|
| 220 | mixedDictJson:dict = {'{"A": {"data": 1}}': 1, '{"B": {"data": 1}}': 2}
|
|---|
| 221 | MyC:C = C(3, "MyC")
|
|---|
| 222 |
|
|---|
| 223 | def testDeserialize(self):
|
|---|
| 224 | objson= "$12"
|
|---|
| 225 | self.assertEqual(Simple(12), self.pyson.parse(objson, Simple))
|
|---|
| 226 |
|
|---|
| 227 | def testExternalDeserialize2(self):
|
|---|
| 228 | objson= "$13"
|
|---|
| 229 | self.assertEqual(13, self.pyson.parse(objson, Simple2))
|
|---|
| 230 |
|
|---|
| 231 |
|
|---|
| 232 | def testExternalDeserialize3(self):
|
|---|
| 233 | objson= "$13"
|
|---|
| 234 | self.assertRaises(ValueError, lambda:self.pyson.parse(objson, Simple3))
|
|---|
| 235 |
|
|---|
| 236 | def testDeserializeMyList(self):
|
|---|
| 237 | print(self.pyson.toJson(MyList([12,13])))
|
|---|
| 238 |
|
|---|
| 239 | # the json we provide is NOT the proper json but a STRING.
|
|---|
| 240 | # This triggers a fallback mechanism that tries to parse the string as json.
|
|---|
| 241 | objson={"data": ["$12", "$13"]}
|
|---|
| 242 | res = self.pyson.parse(objson, MyList)
|
|---|
| 243 | print(res)
|
|---|
| 244 | self.assertEqual([Simple(12),Simple(13)], res.data)
|
|---|
| 245 |
|
|---|
| 246 | def testDeserializeCollection(self):
|
|---|
| 247 | objson=[1,2,3]
|
|---|
| 248 | # this checks that pyson can parse a list as Collection.
|
|---|
| 249 | # The result is a simple list like in java/jackson.
|
|---|
| 250 | # Collection without typing info means Collectino[Any]
|
|---|
| 251 | res = self.pyson.parse(objson, Collection)
|
|---|
| 252 | print(res)
|
|---|
| 253 | self.assertEqual([1,2,3], res)
|
|---|
| 254 |
|
|---|
| 255 |
|
|---|
| 256 | def testSerializeBasicDict(self):
|
|---|
| 257 | '''
|
|---|
| 258 | Basic object keys. Special (de)serializer should kick in #190
|
|---|
| 259 | '''
|
|---|
| 260 | d= BasicDict( { Basic(1.):Basic(2.), Basic(3.): Basic(4.) } )
|
|---|
| 261 | objson={"data": {"{\"v\": 1.0}": {"v": 2.0}, "{\"v\": 3.0}": {"v": 4.0}}}
|
|---|
| 262 | dump=json.dumps(self.pyson.toJson(d));
|
|---|
| 263 | print(dump)
|
|---|
| 264 | # self.assertEqual(objson, dump);
|
|---|
| 265 | res=self.pyson.parse(objson, BasicDict)
|
|---|
| 266 | print("res="+str(res))
|
|---|
| 267 | self.assertEqual(d, res)
|
|---|
| 268 |
|
|---|
| 269 |
|
|---|
| 270 | def testSerializeSimpleDictCustomSerializer(self):
|
|---|
| 271 | d= SimpleDict( { Simple(1):Simple(2), Simple(3): Simple(4) } )
|
|---|
| 272 |
|
|---|
| 273 | # The keys need extra quotes, they are deserialied by
|
|---|
| 274 | # our special deserializer that parses the string as json,
|
|---|
| 275 | # and json requires double quotes around its strings.
|
|---|
| 276 | objson = {"data": {'"$1"': "$2", '"$3"': "$4"}}
|
|---|
| 277 |
|
|---|
| 278 | obj=self.pyson.toJson(d)
|
|---|
| 279 | print(json.dumps(obj))
|
|---|
| 280 | self.assertEqual(objson, obj)
|
|---|
| 281 |
|
|---|
| 282 | res = self.pyson.parse(objson, SimpleDict)
|
|---|
| 283 | print("res="+str(res))
|
|---|
| 284 | self.assertEqual(d, res)
|
|---|
| 285 |
|
|---|
| 286 | def testDeserializeOptString(self):
|
|---|
| 287 | objson:dict={'s':None}
|
|---|
| 288 | res = self.pyson.parse(objson, MyOptionalString)
|
|---|
| 289 | print(res)
|
|---|
| 290 | self.assertEqual(MyOptionalString(None), res)
|
|---|
| 291 |
|
|---|
| 292 | objson={'s':"something"}
|
|---|
| 293 | res = self.pyson.parse(objson, MyOptionalString)
|
|---|
| 294 | print(res)
|
|---|
| 295 | self.assertEqual(MyOptionalString("something"), res)
|
|---|
| 296 |
|
|---|
| 297 | def testSerializeMixedList(self):
|
|---|
| 298 | # see #296
|
|---|
| 299 | res=self.pyson.toJson(self.mixedList)
|
|---|
| 300 | print(res)
|
|---|
| 301 | self.assertEqual(self.mixedlistjson, res)
|
|---|
| 302 |
|
|---|
| 303 | def testDeserializeMixedList(self):
|
|---|
| 304 | # see #296
|
|---|
| 305 | res=self.pyson.parse(self.mixedlistjson, List[Root])
|
|---|
| 306 | print(res)
|
|---|
| 307 | self.assertEqual(self.mixedList,res)
|
|---|
| 308 |
|
|---|
| 309 | def testDeserializeBadList(self):
|
|---|
| 310 | # see #298. This SHOULD fail because B is not subtype of A
|
|---|
| 311 | self.assertRaises(ValueError, lambda:self.pyson.parse(self.mixedlistjson, List[A]))
|
|---|
| 312 |
|
|---|
| 313 |
|
|---|
| 314 | def testSerializeMixedDict(self):
|
|---|
| 315 | # see #296
|
|---|
| 316 | res=self.pyson.toJson(self.mixedDict)
|
|---|
| 317 | print(res)
|
|---|
| 318 | self.assertEqual(self.mixedDictJson, res)
|
|---|
| 319 |
|
|---|
| 320 | def testDeserializeMixedDict(self):
|
|---|
| 321 | # see #296
|
|---|
| 322 | print("testDeserializeMixedDict")
|
|---|
| 323 | res=self.pyson.parse(self.mixedDictJson, Dict[Root,int])
|
|---|
| 324 | print(res)
|
|---|
| 325 | self.assertEqual(self.mixedDict,res)
|
|---|
| 326 |
|
|---|
| 327 | def testDeserializeC(self):
|
|---|
| 328 | # see #298. Sub-class should not expect
|
|---|
| 329 | res=self.pyson.parse({'C':{'data':3, 'name':'MyC' }}, Root)
|
|---|
| 330 | print(reset)
|
|---|
| 331 | self.assertEqual(self.MyC, res)
|
|---|
| 332 | # even if you serialize as C, you still need the 'C' wrapper
|
|---|
| 333 | res=self.pyson.parse({'C':{'data':3, 'name':'MyC' }}, C)
|
|---|
| 334 | self.assertEqual(self.MyC, res)
|
|---|
| 335 |
|
|---|
| 336 | def testDeserializeBaseValue(self):
|
|---|
| 337 | # see #331
|
|---|
| 338 | res=self.pyson.parse({'yes': 1, 'no': 0}, Dict[BaseDiscreteValue, int])
|
|---|
| 339 | print(res)
|
|---|
| 340 |
|
|---|
| 341 |
|
|---|
| 342 | def testDeserializeSuperSimple(self):
|
|---|
| 343 | res=self.pyson.parse({'a':1 } , SuperSimple)
|
|---|
| 344 | print(res)
|
|---|
| 345 | self.assertEqual(SuperSimple(1), res)
|
|---|
| 346 |
|
|---|
| 347 |
|
|---|
| 348 | def testDeserializeMissingValue(self):
|
|---|
| 349 | res=self.pyson.parse({ } , SuperSimple) # missing value for a
|
|---|
| 350 | print(res)
|
|---|
| 351 | self.assertEqual(SuperSimple(None), res)
|
|---|
| 352 |
|
|---|
| 353 | def testDeserializeStandardDict(self):
|
|---|
| 354 | val:Dict = self.pyson.parse(json.loads("{\"a\":0.3,\"b\":{\"x\":3},\"c\":[1,2,3]}"),Dict)
|
|---|
| 355 |
|
|---|
| 356 |
|
|---|
| 357 | def testDeserializeClass(self):
|
|---|
| 358 | clazz:Type[Root] = self.pyson.parse("test.DeserializerTest.C", Type[Root])
|
|---|
| 359 | self.assertEquals(C, clazz)
|
|---|
| 360 |
|
|---|
| 361 | def testSerializeClass(self):
|
|---|
| 362 | js = self.pyson.toJson(C)
|
|---|
| 363 | print("serialized Class<C>:"+json.dumps(js))
|
|---|
| 364 | self.assertEquals("test.DeserializerTest.C", js)
|
|---|
| 365 |
|
|---|
| 366 |
|
|---|
| 367 |
|
|---|
![(please configure the [header_logo] section in trac.ini)](/pubtrac/Utilities/chrome/site/your_project_logo.png){kind=logo}
