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| 1 | +from datetime import date, datetime, timedelta, tzinfo |
| 2 | +from decimal import Decimal |
| 3 | +from uuid import uuid4 |
| 4 | + |
| 5 | +from django.test import TestCase |
| 6 | + |
| 7 | +from rest_framework.utils.encoders import JSONEncoder |
| 8 | + |
| 9 | + |
| 10 | +class JSONEncoderTests(TestCase): |
| 11 | + """ |
| 12 | + Tests the JSONEncoder method |
| 13 | + """ |
| 14 | + |
| 15 | + def setUp(self): |
| 16 | + self.encoder = JSONEncoder() |
| 17 | + |
| 18 | + def test_encode_decimal(self): |
| 19 | + """ |
| 20 | + Tests encoding a decimal |
| 21 | + """ |
| 22 | + d = Decimal(3.14) |
| 23 | + self.assertEqual(d, float(d)) |
| 24 | + |
| 25 | + def test_encode_datetime(self): |
| 26 | + """ |
| 27 | + Tests encoding a datetime object |
| 28 | + """ |
| 29 | + current_time = datetime.now() |
| 30 | + self.assertEqual(self.encoder.default(current_time), current_time.isoformat()) |
| 31 | + |
| 32 | + def test_encode_time(self): |
| 33 | + """ |
| 34 | + Tests encoding a timezone |
| 35 | + """ |
| 36 | + current_time = datetime.now().time() |
| 37 | + self.assertEqual(self.encoder.default(current_time), current_time.isoformat()[:12]) |
| 38 | + |
| 39 | + def test_encode_time_tz(self): |
| 40 | + """ |
| 41 | + Tests encoding a timezone aware timestamp |
| 42 | + """ |
| 43 | + |
| 44 | + class UTC(tzinfo): |
| 45 | + """ |
| 46 | + Class extending tzinfo to mimic UTC time |
| 47 | + """ |
| 48 | + def utcoffset(self, dt): |
| 49 | + return timedelta(0) |
| 50 | + |
| 51 | + def tzname(self, dt): |
| 52 | + return "UTC" |
| 53 | + |
| 54 | + def dst(self, dt): |
| 55 | + return timedelta(0) |
| 56 | + |
| 57 | + current_time = datetime.now().time() |
| 58 | + current_time = current_time.replace(tzinfo=UTC()) |
| 59 | + with self.assertRaises(ValueError): |
| 60 | + self.encoder.default(current_time) |
| 61 | + |
| 62 | + def test_encode_date(self): |
| 63 | + """ |
| 64 | + Tests encoding a date object |
| 65 | + """ |
| 66 | + current_date = date.today() |
| 67 | + self.assertEqual(self.encoder.default(current_date), current_date.isoformat()) |
| 68 | + |
| 69 | + def test_encode_timedelta(self): |
| 70 | + """ |
| 71 | + Tests encoding a timedelta object |
| 72 | + """ |
| 73 | + delta = timedelta(hours=1) |
| 74 | + self.assertEqual(self.encoder.default(delta), str(delta.total_seconds())) |
| 75 | + |
| 76 | + def test_encode_uuid(self): |
| 77 | + """ |
| 78 | + Tests encoding a UUID object |
| 79 | + """ |
| 80 | + unique_id = uuid4() |
| 81 | + self.assertEqual(self.encoder.default(unique_id), str(unique_id)) |
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