aboutsummaryrefslogtreecommitdiffstats
path: root/images/docs/tutorial/xhr_service.graffle
AgeCommit message (Expand)Author
2011-06-06adding all omnigraffle files for tutorial and guide imagesKenneth R. Culp
'#n5'>5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288
from .utils import mock_reverse, fail_reverse, BadType, MockObject, MockQueryset
from django.core.exceptions import ImproperlyConfigured
from rest_framework import serializers
from rest_framework.test import APISimpleTestCase
import pytest


class TestStringRelatedField(APISimpleTestCase):
    def setUp(self):
        self.instance = MockObject(pk=1, name='foo')
        self.field = serializers.StringRelatedField()

    def test_string_related_representation(self):
        representation = self.field.to_representation(self.instance)
        assert representation == '<MockObject name=foo, pk=1>'


class TestPrimaryKeyRelatedField(APISimpleTestCase):
    def setUp(self):
        self.queryset = MockQueryset([
            MockObject(pk=1, name='foo'),
            MockObject(pk=2, name='bar'),
            MockObject(pk=3, name='baz')
        ])
        self.instance = self.queryset.items[2]
        self.field = serializers.PrimaryKeyRelatedField(queryset=self.queryset)

    def test_pk_related_lookup_exists(self):
        instance = self.field.to_internal_value(self.instance.pk)
        assert instance is self.instance

    def test_pk_related_lookup_does_not_exist(self):
        with pytest.raises(serializers.ValidationError) as excinfo:
            self.field.to_internal_value(4)
        msg = excinfo.value.detail[0]
        assert msg == "Invalid pk '4' - object does not exist."

    def test_pk_related_lookup_invalid_type(self):
        with pytest.raises(serializers.ValidationError) as excinfo:
            self.field.to_internal_value(BadType())
        msg = excinfo.value.detail[0]
        assert msg == 'Incorrect type. Expected pk value, received BadType.'

    def test_pk_representation(self):
        representation = self.field.to_representation(self.instance)
        assert representation == self.instance.pk


class TestHyperlinkedIdentityField(APISimpleTestCase):
    def setUp(self):
        self.instance = MockObject(pk=1, name='foo')
        self.field = serializers.HyperlinkedIdentityField(view_name='example')
        self.field.reverse = mock_reverse
        self.field._context = {'request': True}

    def test_representation(self):
        representation = self.field.to_representation(self.instance)
        assert representation == 'http://example.org/example/1/'

    def test_representation_unsaved_object(self):
        representation = self.field.to_representation(MockObject(pk=None))
        assert representation is None

    def test_representation_with_format(self):
        self.field._context['format'] = 'xml'
        representation = self.field.to_representation(self.instance)
        assert representation == 'http://example.org/example/1.xml/'

    def test_improperly_configured(self):
        """
        If a matching view cannot be reversed with the given instance,
        the the user has misconfigured something, as the URL conf and the
        hyperlinked field do not match.
        """
        self.field.reverse = fail_reverse
        with pytest.raises(ImproperlyConfigured):
            self.field.to_representation(self.instance)


class TestHyperlinkedIdentityFieldWithFormat(APISimpleTestCase):
    """
    Tests for a hyperlinked identity field that has a `format` set,
    which enforces that alternate formats are never linked too.

    Eg. If your API includes some endpoints that accept both `.xml` and `.json`,
    but other endpoints that only accept `.json`, we allow for hyperlinked
    relationships that enforce only a single suffix type.
    """

    def setUp(self):
        self.instance = MockObject(pk=1, name='foo')
        self.field = serializers.HyperlinkedIdentityField(view_name='example', format='json')
        self.field.reverse = mock_reverse
        self.field._context = {'request': True}

    def test_representation(self):
        representation = self.field.to_representation(self.instance)