Adding tests to encoder.py (#4536)

This commit is contained in:
Alex Kahan 2016-10-05 04:54:59 -04:00 committed by Tom Christie
parent 915ac22aeb
commit 4ff9e96b4c

81
tests/test_encoders.py Normal file
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from datetime import date, datetime, timedelta, tzinfo
from decimal import Decimal
from uuid import uuid4
from django.test import TestCase
from rest_framework.utils.encoders import JSONEncoder
class JSONEncoderTests(TestCase):
"""
Tests the JSONEncoder method
"""
def setUp(self):
self.encoder = JSONEncoder()
def test_encode_decimal(self):
"""
Tests encoding a decimal
"""
d = Decimal(3.14)
self.assertEqual(d, float(d))
def test_encode_datetime(self):
"""
Tests encoding a datetime object
"""
current_time = datetime.now()
self.assertEqual(self.encoder.default(current_time), current_time.isoformat())
def test_encode_time(self):
"""
Tests encoding a timezone
"""
current_time = datetime.now().time()
self.assertEqual(self.encoder.default(current_time), current_time.isoformat()[:12])
def test_encode_time_tz(self):
"""
Tests encoding a timezone aware timestamp
"""
class UTC(tzinfo):
"""
Class extending tzinfo to mimic UTC time
"""
def utcoffset(self, dt):
return timedelta(0)
def tzname(self, dt):
return "UTC"
def dst(self, dt):
return timedelta(0)
current_time = datetime.now().time()
current_time = current_time.replace(tzinfo=UTC())
with self.assertRaises(ValueError):
self.encoder.default(current_time)
def test_encode_date(self):
"""
Tests encoding a date object
"""
current_date = date.today()
self.assertEqual(self.encoder.default(current_date), current_date.isoformat())
def test_encode_timedelta(self):
"""
Tests encoding a timedelta object
"""
delta = timedelta(hours=1)
self.assertEqual(self.encoder.default(delta), str(delta.total_seconds()))
def test_encode_uuid(self):
"""
Tests encoding a UUID object
"""
unique_id = uuid4()
self.assertEqual(self.encoder.default(unique_id), str(unique_id))