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105 lines
2.9 KiB
Python
105 lines
2.9 KiB
Python
from datetime import date, datetime, timedelta, timezone
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from decimal import Decimal
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from uuid import uuid4
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import pytest
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from django.test import TestCase
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from rest_framework.compat import coreapi
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from rest_framework.utils.encoders import JSONEncoder
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from rest_framework.utils.serializer_helpers import ReturnList
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utc = timezone.utc
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class MockList:
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def tolist(self):
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return [1, 2, 3]
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class JSONEncoderTests(TestCase):
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"""
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Tests the JSONEncoder method
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"""
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def setUp(self):
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self.encoder = JSONEncoder()
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def test_encode_decimal(self):
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"""
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Tests encoding a decimal
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"""
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d = Decimal(3.14)
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assert self.encoder.default(d) == float(d)
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def test_encode_datetime(self):
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"""
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Tests encoding a datetime object
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"""
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current_time = datetime.now()
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assert self.encoder.default(current_time) == current_time.isoformat()
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current_time_utc = current_time.replace(tzinfo=utc)
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assert self.encoder.default(current_time_utc) == current_time.isoformat() + 'Z'
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def test_encode_time(self):
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"""
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Tests encoding a timezone
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"""
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current_time = datetime.now().time()
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assert self.encoder.default(current_time) == current_time.isoformat()
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def test_encode_time_tz(self):
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"""
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Tests encoding a timezone aware timestamp
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"""
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current_time = datetime.now().time()
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current_time = current_time.replace(tzinfo=utc)
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with pytest.raises(ValueError):
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self.encoder.default(current_time)
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def test_encode_date(self):
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"""
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Tests encoding a date object
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"""
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current_date = date.today()
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assert self.encoder.default(current_date) == current_date.isoformat()
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def test_encode_timedelta(self):
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"""
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Tests encoding a timedelta object
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"""
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delta = timedelta(hours=1)
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assert self.encoder.default(delta) == str(delta.total_seconds())
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def test_encode_uuid(self):
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"""
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Tests encoding a UUID object
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"""
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unique_id = uuid4()
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assert self.encoder.default(unique_id) == str(unique_id)
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@pytest.mark.skipif(not coreapi, reason='coreapi is not installed')
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def test_encode_coreapi_raises_error(self):
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"""
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Tests encoding a coreapi objects raises proper error
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"""
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with pytest.raises(RuntimeError):
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self.encoder.default(coreapi.Document())
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with pytest.raises(RuntimeError):
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self.encoder.default(coreapi.Error())
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def test_encode_object_with_tolist(self):
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"""
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Tests encoding a object with tolist method
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"""
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foo = MockList()
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assert self.encoder.default(foo) == [1, 2, 3]
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def test_encode_empty_returnlist(self):
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"""
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Tests encoding an empty ReturnList
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"""
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foo = ReturnList(serializer=None)
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assert self.encoder.default(foo) == []
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