mirror of
https://github.com/django/django.git
synced 2024-11-25 07:59:34 +01:00
271 lines
9.7 KiB
Python
271 lines
9.7 KiB
Python
import decimal
|
|
import json
|
|
import re
|
|
|
|
from django.core import serializers
|
|
from django.core.serializers.base import DeserializationError
|
|
from django.db import models
|
|
from django.test import TestCase, TransactionTestCase
|
|
from django.test.utils import isolate_apps
|
|
|
|
from .models import Score
|
|
from .tests import SerializersTestBase, SerializersTransactionTestBase
|
|
|
|
|
|
class JsonlSerializerTestCase(SerializersTestBase, TestCase):
|
|
serializer_name = "jsonl"
|
|
pkless_str = [
|
|
'{"pk": null,"model": "serializers.category","fields": {"name": "Reference"}}',
|
|
'{"model": "serializers.category","fields": {"name": "Non-fiction"}}',
|
|
]
|
|
pkless_str = "\n".join([s.replace("\n", "") for s in pkless_str])
|
|
|
|
mapping_ordering_str = (
|
|
'{"model": "serializers.article","pk": %(article_pk)s,'
|
|
'"fields": {'
|
|
'"author": %(author_pk)s,'
|
|
'"headline": "Poker has no place on ESPN",'
|
|
'"pub_date": "2006-06-16T11:00:00",'
|
|
'"categories": [%(first_category_pk)s,%(second_category_pk)s],'
|
|
'"meta_data": []}}\n'
|
|
)
|
|
|
|
@staticmethod
|
|
def _validate_output(serial_str):
|
|
try:
|
|
for line in serial_str.split("\n"):
|
|
if line:
|
|
json.loads(line)
|
|
except Exception:
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
@staticmethod
|
|
def _get_pk_values(serial_str):
|
|
serial_list = [json.loads(line) for line in serial_str.split("\n") if line]
|
|
return [obj_dict["pk"] for obj_dict in serial_list]
|
|
|
|
@staticmethod
|
|
def _get_field_values(serial_str, field_name):
|
|
serial_list = [json.loads(line) for line in serial_str.split("\n") if line]
|
|
return [
|
|
obj_dict["fields"][field_name]
|
|
for obj_dict in serial_list
|
|
if field_name in obj_dict["fields"]
|
|
]
|
|
|
|
def test_no_indentation(self):
|
|
s = serializers.jsonl.Serializer()
|
|
json_data = s.serialize([Score(score=5.0), Score(score=6.0)], indent=2)
|
|
for line in json_data.splitlines():
|
|
self.assertIsNone(re.search(r".+,\s*$", line))
|
|
|
|
@isolate_apps("serializers")
|
|
def test_custom_encoder(self):
|
|
class ScoreDecimal(models.Model):
|
|
score = models.DecimalField()
|
|
|
|
class CustomJSONEncoder(json.JSONEncoder):
|
|
def default(self, o):
|
|
if isinstance(o, decimal.Decimal):
|
|
return str(o)
|
|
return super().default(o)
|
|
|
|
s = serializers.jsonl.Serializer()
|
|
json_data = s.serialize(
|
|
[ScoreDecimal(score=decimal.Decimal(1.0))],
|
|
cls=CustomJSONEncoder,
|
|
)
|
|
self.assertIn('"fields": {"score": "1"}', json_data)
|
|
|
|
def test_json_deserializer_exception(self):
|
|
with self.assertRaises(DeserializationError):
|
|
for obj in serializers.deserialize("jsonl", """[{"pk":1}"""):
|
|
pass
|
|
|
|
def test_helpful_error_message_invalid_pk(self):
|
|
"""
|
|
If there is an invalid primary key, the error message contains the
|
|
model associated with it.
|
|
"""
|
|
test_string = (
|
|
'{"pk": "badpk","model": "serializers.player",'
|
|
'"fields": {"name": "Bob","rank": 1,"team": "Team"}}'
|
|
)
|
|
with self.assertRaisesMessage(
|
|
DeserializationError, "(serializers.player:pk=badpk)"
|
|
):
|
|
list(serializers.deserialize("jsonl", test_string))
|
|
|
|
def test_helpful_error_message_invalid_field(self):
|
|
"""
|
|
If there is an invalid field value, the error message contains the
|
|
model associated with it.
|
|
"""
|
|
test_string = (
|
|
'{"pk": "1","model": "serializers.player",'
|
|
'"fields": {"name": "Bob","rank": "invalidint","team": "Team"}}'
|
|
)
|
|
expected = "(serializers.player:pk=1) field_value was 'invalidint'"
|
|
with self.assertRaisesMessage(DeserializationError, expected):
|
|
list(serializers.deserialize("jsonl", test_string))
|
|
|
|
def test_helpful_error_message_for_foreign_keys(self):
|
|
"""
|
|
Invalid foreign keys with a natural key throws a helpful error message,
|
|
such as what the failing key is.
|
|
"""
|
|
test_string = (
|
|
'{"pk": 1, "model": "serializers.category",'
|
|
'"fields": {'
|
|
'"name": "Unknown foreign key",'
|
|
'"meta_data": ["doesnotexist","metadata"]}}'
|
|
)
|
|
key = ["doesnotexist", "metadata"]
|
|
expected = "(serializers.category:pk=1) field_value was '%r'" % key
|
|
with self.assertRaisesMessage(DeserializationError, expected):
|
|
list(serializers.deserialize("jsonl", test_string))
|
|
|
|
def test_helpful_error_message_for_many2many_non_natural(self):
|
|
"""
|
|
Invalid many-to-many keys throws a helpful error message.
|
|
"""
|
|
test_strings = [
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.article",
|
|
"fields": {
|
|
"author": 1,
|
|
"headline": "Unknown many to many",
|
|
"pub_date": "2014-09-15T10:35:00",
|
|
"categories": [1, "doesnotexist"]
|
|
}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.author",
|
|
"fields": {"name": "Agnes"}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.category",
|
|
"fields": {"name": "Reference"}
|
|
}""",
|
|
]
|
|
test_string = "\n".join([s.replace("\n", "") for s in test_strings])
|
|
expected = "(serializers.article:pk=1) field_value was 'doesnotexist'"
|
|
with self.assertRaisesMessage(DeserializationError, expected):
|
|
list(serializers.deserialize("jsonl", test_string))
|
|
|
|
def test_helpful_error_message_for_many2many_natural1(self):
|
|
"""
|
|
Invalid many-to-many keys throws a helpful error message where one of a
|
|
list of natural keys is invalid.
|
|
"""
|
|
test_strings = [
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.categorymetadata",
|
|
"fields": {"kind": "author","name": "meta1","value": "Agnes"}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.article",
|
|
"fields": {
|
|
"author": 1,
|
|
"headline": "Unknown many to many",
|
|
"pub_date": "2014-09-15T10:35:00",
|
|
"meta_data": [
|
|
["author", "meta1"],
|
|
["doesnotexist", "meta1"],
|
|
["author", "meta1"]
|
|
]
|
|
}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.author",
|
|
"fields": {"name": "Agnes"}
|
|
}""",
|
|
]
|
|
test_string = "\n".join([s.replace("\n", "") for s in test_strings])
|
|
key = ["doesnotexist", "meta1"]
|
|
expected = "(serializers.article:pk=1) field_value was '%r'" % key
|
|
with self.assertRaisesMessage(DeserializationError, expected):
|
|
for obj in serializers.deserialize("jsonl", test_string):
|
|
obj.save()
|
|
|
|
def test_helpful_error_message_for_many2many_natural2(self):
|
|
"""
|
|
Invalid many-to-many keys throws a helpful error message where a
|
|
natural many-to-many key has only a single value.
|
|
"""
|
|
test_strings = [
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.article",
|
|
"fields": {
|
|
"author": 1,
|
|
"headline": "Unknown many to many",
|
|
"pub_date": "2014-09-15T10:35:00",
|
|
"meta_data": [1, "doesnotexist"]
|
|
}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.categorymetadata",
|
|
"fields": {"kind": "author","name": "meta1","value": "Agnes"}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.author",
|
|
"fields": {"name": "Agnes"}
|
|
}""",
|
|
]
|
|
test_string = "\n".join([s.replace("\n", "") for s in test_strings])
|
|
expected = "(serializers.article:pk=1) field_value was 'doesnotexist'"
|
|
with self.assertRaisesMessage(DeserializationError, expected):
|
|
for obj in serializers.deserialize("jsonl", test_string, ignore=False):
|
|
obj.save()
|
|
|
|
def test_helpful_error_message_for_many2many_not_iterable(self):
|
|
"""
|
|
Not iterable many-to-many field value throws a helpful error message.
|
|
"""
|
|
test_string = (
|
|
'{"pk": 1,"model": "serializers.m2mdata","fields": {"data": null}}'
|
|
)
|
|
expected = "(serializers.m2mdata:pk=1) field_value was 'None'"
|
|
with self.assertRaisesMessage(DeserializationError, expected):
|
|
next(serializers.deserialize("jsonl", test_string, ignore=False))
|
|
|
|
|
|
class JsonSerializerTransactionTestCase(
|
|
SerializersTransactionTestBase, TransactionTestCase
|
|
):
|
|
serializer_name = "jsonl"
|
|
fwd_ref_str = [
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.article",
|
|
"fields": {
|
|
"headline": "Forward references pose no problem",
|
|
"pub_date": "2006-06-16T15:00:00",
|
|
"categories": [1],
|
|
"author": 1
|
|
}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.category",
|
|
"fields": {"name": "Reference"}
|
|
}""",
|
|
"""{
|
|
"pk": 1,
|
|
"model": "serializers.author",
|
|
"fields": {"name": "Agnes"}
|
|
}""",
|
|
]
|
|
fwd_ref_str = "\n".join([s.replace("\n", "") for s in fwd_ref_str])
|