var angularGlobal = { 'typeOf':function(obj){ if (obj === _null) return $null; var type = typeof obj; if (type == $object) { if (obj instanceof Array) return $array; if (obj instanceof Date) return $date; if (obj.nodeType == 1) return $element; } return type; } }; var angularCollection = { 'copy': copy, 'size': size, 'equals': equals }; var angularObject = { 'extend': extend }; var angularArray = { 'indexOf': indexOf, 'sum':function(array, expression) { var fn = angular['Function']['compile'](expression); var sum = 0; for (var i = 0; i < array.length; i++) { var value = 1 * fn(array[i]); if (!isNaN(value)){ sum += value; } } return sum; }, 'remove':function(array, value) { var index = indexOf(array, value); if (index >=0) array.splice(index, 1); return value; }, 'filter':function(array, expression) { var predicates = []; predicates.check = function(value) { for (var j = 0; j < predicates.length; j++) { if(!predicates[j](value)) { return false; } } return true; }; var search = function(obj, text){ if (text.charAt(0) === '!') { return !search(obj, text.substr(1)); } switch (typeof obj) { case "boolean": case "number": case "string": return ('' + obj).toLowerCase().indexOf(text) > -1; case "object": for ( var objKey in obj) { if (objKey.charAt(0) !== '$' && search(obj[objKey], text)) { return true; } } return false; case "array": for ( var i = 0; i < obj.length; i++) { if (search(obj[i], text)) { return true; } } return false; default: return false; } }; switch (typeof expression) { case "boolean": case "number": case "string": expression = {$:expression}; case "object": for (var key in expression) { if (key == '$') { (function(){ var text = (''+expression[key]).toLowerCase(); if (!text) return; predicates.push(function(value) { return search(value, text); }); })(); } else { (function(){ var path = key; var text = (''+expression[key]).toLowerCase(); if (!text) return; predicates.push(function(value) { return search(getter(value, path), text); }); })(); } } break; case $function: predicates.push(expression); break; default: return array; } var filtered = []; for ( var j = 0; j < array.length; j++) { var value = array[j]; if (predicates.check(value)) { filtered.push(value); } } return filtered; }, 'add':function(array, value) { array.push(isUndefined(value)? {} : value); return array; }, 'count':function(array, condition) { if (!condition) return array.length; var fn = angular['Function']['compile'](condition), count = 0; foreach(array, function(value){ if (fn(value)) { count ++; } }); return count; }, 'orderBy':function(array, expression, descend) { function reverse(comp, descending) { return toBoolean(descending) ? function(a,b){return comp(b,a);} : comp; } function compare(v1, v2){ var t1 = typeof v1; var t2 = typeof v2; if (t1 == t2) { if (t1 == "string") v1 = v1.toLowerCase(); if (t1 == "string") v2 = v2.toLowerCase(); if (v1 === v2) return 0; return v1 < v2 ? -1 : 1; } else { return t1 < t2 ? -1 : 1; } } expression = isArray(expression) ? expression: [expression]; expression = map(expression, function($){ var descending = false; if (typeof $ == "string" && ($.charAt(0) == '+' || $.charAt(0) == '-')) { descending = $.charAt(0) == '-'; $ = $.substring(1); } var get = $ ? expressionCompile($).fnSelf : identity; return reverse(function(a,b){ return compare(get(a),get(b)); }, descending); }); var comparator = function(o1, o2){ for ( var i = 0; i < expression.length; i++) { var comp = expression[i](o1, o2); if (comp !== 0) return comp; } return 0; }; var arrayCopy = []; for ( var i = 0; i < array.length; i++) { arrayCopy.push(array[i]); } return arrayCopy.sort(reverse(comparator, descend)); } }; var angularString = { 'quote':function(string) { return '"' + string.replace(/\\/g, '\\\\'). replace(/"/g, '\\"'). replace(/\n/g, '\\n'). replace(/\f/g, '\\f'). replace(/\r/g, '\\r'). replace(/\t/g, '\\t'). replace(/\v/g, '\\v') + '"'; }, 'quoteUnicode':function(string) { var str = angular['String']['quote'](string); var chars = []; for ( var i = 0; i < str.length; i++) { var ch = str.charCodeAt(i); if (ch < 128) { chars.push(str.charAt(i)); } else { var encode = "000" + ch.toString(16); chars.push("\\u" + encode.substring(encode.length - 4)); } } return chars.join(''); }, 'toDate':function(string){ var match; if (typeof string == 'string' && (match = string.match(/^(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)Z$/))){ var date = new Date(0); date.setUTCFullYear(match[1], match[2] - 1, match[3]); date.setUTCHours(match[4], match[5], match[6], 0); return date; } return string; } }; var angularDate = { 'toString':function(date){ function pad(n) { return n < 10 ? "0" + n : n; } return !date ? date : date.getUTCFullYear() + '-' + pad(date.getUTCMonth() + 1) + '-' + pad(date.getUTCDate()) + 'T' + pad(date.getUTCHours()) + ':' + pad(date.getUTCMinutes()) + ':' + pad(date.getUTCSeconds()) + 'Z' ; } }; var angularFunction = { 'compile':function(expression) { if (isFunction(expression)){ return expression; } else if (expression){ return expressionCompile(expression).fnSelf; } else { return identity; } } }; function defineApi(dst, chain){ angular[dst] = angular[dst] || {}; foreach(chain, function(parent){ extend(angular[dst], parent); }); } defineApi('Global', [angularGlobal]); defineApi('Collection', [angularGlobal, angularCollection]); defineApi('Array', [angularGlobal, angularCollection, angularArray]); defineApi('Object', [angularGlobal, angularCollection, angularObject]); defineApi('String', [angularGlobal, angularString]); defineApi('Date', [angularGlobal, angularDate]); //IE bug angular['Date']['toString'] = angularDate['toString']; defineApi('Function', [angularGlobal, angularCollection, angularFunction]); 04'>104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 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from __future__ import unicode_literals
from django.db import models
from django.db.models.fields import BLANK_CHOICE_DASH
from django.utils.datastructures import MultiValueDict
from django.test import TestCase
from rest_framework import serializers
from rest_framework.tests.models import (HasPositiveIntegerAsChoice, Album, ActionItem, Anchor, BasicModel,
    BlankFieldModel, BlogPost, BlogPostComment, Book, CallableDefaultValueModel, DefaultValueModel,
    ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo)
import datetime
import pickle


class SubComment(object):
    def __init__(self, sub_comment):
        self.sub_comment = sub_comment


class Comment(object):
    def __init__(self, email, content, created):
        self.email = email
        self.content = content
        self.created = created or datetime.datetime.now()

    def __eq__(self, other):
        return all([getattr(self, attr) == getattr(other, attr)
                    for attr in ('email', 'content', 'created')])

    def get_sub_comment(self):
        sub_comment = SubComment('And Merry Christmas!')
        return sub_comment


class CommentSerializer(serializers.Serializer):
    email = serializers.EmailField()
    content = serializers.CharField(max_length=1000)
    created = serializers.DateTimeField()
    sub_comment = serializers.Field(source='get_sub_comment.sub_comment')

    def restore_object(self, data, instance=None):
        if instance is None:
            return Comment(**data)
        for key, val in data.items():
            setattr(instance, key, val)
        return instance


class NamesSerializer(serializers.Serializer):
    first = serializers.CharField()
    last = serializers.CharField(required=False, default='')
    initials = serializers.CharField(required=False, default='')


class PersonIdentifierSerializer(serializers.Serializer):
    ssn = serializers.CharField()
    names = NamesSerializer(source='names', required=False)


class BookSerializer(serializers.ModelSerializer):
    isbn = serializers.RegexField(regex=r'^[0-9]{13}$', error_messages={'invalid': 'isbn has to be exact 13 numbers'})

    class Meta:
        model = Book


class ActionItemSerializer(serializers.ModelSerializer):

    class Meta:
        model = ActionItem


class ActionItemSerializerCustomRestore(serializers.ModelSerializer):

    class Meta:
        model = ActionItem

    def restore_object(self, data, instance=None):
        if instance is None:
            return ActionItem(**data)
        for key, val in data.items():
            setattr(instance, key, val)
        return instance


class PersonSerializer(serializers.ModelSerializer):
    info = serializers.Field(source='info')

    class Meta:
        model = Person
        fields = ('name', 'age', 'info')
        read_only_fields = ('age',)


class PersonSerializerInvalidReadOnly(serializers.ModelSerializer):
    """
    Testing for #652.
    """
    info = serializers.Field(source='info')

    class Meta:
        model = Person
        fields = ('name', 'age', 'info')
        read_only_fields = ('age', 'info')


class AlbumsSerializer(serializers.ModelSerializer):

    class Meta:
        model = Album
        fields = ['title']  # lists are also valid options


class PositiveIntegerAsChoiceSerializer(serializers.ModelSerializer):
    class Meta:
        model = HasPositiveIntegerAsChoice
        fields = ['some_integer']


class BrokenModelSerializer(serializers.ModelSerializer):
    class Meta:
        fields = ['some_field']


class BasicTests(TestCase):
    def setUp(self):
        self.comment = Comment(
            'tom@example.com',
            'Happy new year!',
            datetime.datetime(2012, 1, 1)
        )
        self.data = {
            'email': 'tom@example.com',
            'content': 'Happy new year!',
            'created': datetime.datetime(2012, 1, 1),
            'sub_comment': 'This wont change'
        }
        self.expected = {
            'email': 'tom@example.com',
            'content': 'Happy new year!',
            'created': datetime.datetime(2012, 1, 1),
            'sub_comment': 'And Merry Christmas!'
        }
        self.person_data = {'name': 'dwight', 'age': 35}
        self.person = Person(**self.person_data)
        self.person.save()

    def test_empty(self):
        serializer = CommentSerializer()
        expected = {
            'email': '',
            'content': '',
            'created': None,
            'sub_comment': ''
        }
        self.assertEqual(serializer.data, expected)

    def test_retrieve(self):
        serializer = CommentSerializer(self.comment)
        self.assertEqual(serializer.data, self.expected)

    def test_create(self):
        serializer = CommentSerializer(data=self.data)
        expected = self.comment
        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.object, expected)
        self.assertFalse(serializer.object is expected)
        self.assertEqual(serializer.data['sub_comment'], 'And Merry Christmas!')

    def test_create_nested(self):
        """Test a serializer with nested data."""
        names = {'first': 'John', 'last': 'Doe', 'initials': 'jd'}
        data = {'ssn': '1234567890', 'names': names}
        serializer = PersonIdentifierSerializer(data=data)

        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.object, data)
        self.assertFalse(serializer.object is data)
        self.assertEqual(serializer.data['names'], names)

    def test_create_partial_nested(self):
        """Test a serializer with nested data which has missing fields."""
        names = {'first': 'John'}
        data = {'ssn': '1234567890', 'names': names}
        serializer = PersonIdentifierSerializer(data=data)

        expected_names = {'first': 'John', 'last': '', 'initials': ''}
        data['names'] = expected_names

        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.object, data)
        self.assertFalse(serializer.object is expected_names)
        self.assertEqual(serializer.data['names'], expected_names)

    def test_null_nested(self):
        """Test a serializer with a nonexistent nested field"""
        data = {'ssn': '1234567890'}
        serializer = PersonIdentifierSerializer(data=data)

        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.object, data)
        self.assertFalse(serializer.object is data)
        expected = {'ssn': '1234567890', 'names': None}
        self.assertEqual(serializer.data, expected)

    def test_update(self):
        serializer = CommentSerializer(self.comment, data=self.data)
        expected = self.comment
        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.object, expected)
        self.assertTrue(serializer.object is expected)
        self.assertEqual(serializer.data['sub_comment'], 'And Merry Christmas!')

    def test_partial_update(self):
        msg = 'Merry New Year!'
        partial_data = {'content': msg}
        serializer = CommentSerializer(self.comment, data=partial_data)
        self.assertEqual(serializer.is_valid(), False)
        serializer = CommentSerializer(self.comment, data=partial_data, partial=True)
        expected = self.comment
        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.object, expected)
        self.assertTrue(serializer.object is expected)
        self.assertEqual(serializer.data['content'], msg)

    def test_model_fields_as_expected(self):
        """
        Make sure that the fields returned are the same as defined
        in the Meta data
        """
        serializer = PersonSerializer(self.person)
        self.assertEqual(set(serializer.data.keys()),
                          set(['name', 'age', 'info']))

    def test_field_with_dictionary(self):
        """
        Make sure that dictionaries from fields are left intact
        """
        serializer = PersonSerializer(self.person)
        expected = self.person_data
        self.assertEqual(serializer.data['info'], expected)

    def test_read_only_fields(self):
        """
        Attempting to update fields set as read_only should have no effect.
        """
        serializer = PersonSerializer(self.person, data={'name': 'dwight', 'age': 99})
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(serializer.errors, {})
        # Assert age is unchanged (35)
        self.assertEqual(instance.age, self.person_data['age'])

    def test_invalid_read_only_fields(self):
        """
        Regression test for #652.
        """
        self.assertRaises(AssertionError, PersonSerializerInvalidReadOnly, [])


class DictStyleSerializer(serializers.Serializer):
    """
    Note that we don't have any `restore_object` method, so the default
    case of simply returning a dict will apply.
    """
    email = serializers.EmailField()


class DictStyleSerializerTests(TestCase):
    def test_dict_style_deserialize(self):
        """
        Ensure serializers can deserialize into a dict.
        """
        data = {'email': 'foo@example.com'}
        serializer = DictStyleSerializer(data=data)
        self.assertTrue(serializer.is_valid())
        self.assertEqual(serializer.data, data)

    def test_dict_style_serialize(self):
        """
        Ensure serializers can serialize dict objects.
        """
        data = {'email': 'foo@example.com'}
        serializer = DictStyleSerializer(data)
        self.assertEqual(serializer.data, data)


class ValidationTests(TestCase):
    def setUp(self):
        self.comment = Comment(
            'tom@example.com',
            'Happy new year!',
            datetime.datetime(2012, 1, 1)
        )
        self.data = {
            'email': 'tom@example.com',
            'content': 'x' * 1001,
            'created': datetime.datetime(2012, 1, 1)
        }
        self.actionitem = ActionItem(title='Some to do item',)

    def test_create(self):
        serializer = CommentSerializer(data=self.data)
        self.assertEqual(serializer.is_valid(), False)
        self.assertEqual(serializer.errors, {'content': ['Ensure this value has at most 1000 characters (it has 1001).']})

    def test_update(self):
        serializer = CommentSerializer(self.comment, data=self.data)
        self.assertEqual(serializer.is_valid(), False)
        self.assertEqual(serializer.errors, {'content': ['Ensure this value has at most 1000 characters (it has 1001).']})

    def test_update_missing_field(self):
        data = {
            'content': 'xxx',
            'created': datetime.datetime(2012, 1, 1)
        }
        serializer = CommentSerializer(self.comment, data=data)
        self.assertEqual(serializer.is_valid(), False)
        self.assertEqual(serializer.errors, {'email': ['This field is required.']})

    def test_missing_bool_with_default(self):
        """Make sure that a boolean value with a 'False' value is not
        mistaken for not having a default."""
        data = {
            'title': 'Some action item',
            #No 'done' value.
        }
        serializer = ActionItemSerializer(self.actionitem, data=data)
        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.errors, {})

    def test_cross_field_validation(self):

        class CommentSerializerWithCrossFieldValidator(CommentSerializer):

            def validate(self, attrs):
                if attrs["email"] not in attrs["content"]:
                    raise serializers.ValidationError("Email address not in content")
                return attrs

        data = {
            'email': 'tom@example.com',
            'content': 'A comment from tom@example.com',
            'created': datetime.datetime(2012, 1, 1)
        }

        serializer = CommentSerializerWithCrossFieldValidator(data=data)
        self.assertTrue(serializer.is_valid())

        data['content'] = 'A comment from foo@bar.com'

        serializer = CommentSerializerWithCrossFieldValidator(data=data)
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'non_field_errors': ['Email address not in content']})

    def test_null_is_true_fields(self):
        """
        Omitting a value for null-field should validate.
        """
        serializer = PersonSerializer(data={'name': 'marko'})
        self.assertEqual(serializer.is_valid(), True)
        self.assertEqual(serializer.errors, {})

    def test_modelserializer_max_length_exceeded(self):
        data = {
            'title': 'x' * 201,
        }
        serializer = ActionItemSerializer(data=data)
        self.assertEqual(serializer.is_valid(), False)
        self.assertEqual(serializer.errors, {'title': ['Ensure this value has at most 200 characters (it has 201).']})

    def test_modelserializer_max_length_exceeded_with_custom_restore(self):
        """
        When overriding ModelSerializer.restore_object, validation tests should still apply.
        Regression test for #623.

        https://github.com/tomchristie/django-rest-framework/pull/623
        """
        data = {
            'title': 'x' * 201,
        }
        serializer = ActionItemSerializerCustomRestore(data=data)
        self.assertEqual(serializer.is_valid(), False)
        self.assertEqual(serializer.errors, {'title': ['Ensure this value has at most 200 characters (it has 201).']})

    def test_default_modelfield_max_length_exceeded(self):
        data = {
            'title': 'Testing "info" field...',
            'info': 'x' * 13,
        }
        serializer = ActionItemSerializer(data=data)
        self.assertEqual(serializer.is_valid(), False)
        self.assertEqual(serializer.errors, {'info': ['Ensure this value has at most 12 characters (it has 13).']})

    def test_datetime_validation_failure(self):
        """
        Test DateTimeField validation errors on non-str values.
        Regression test for #669.

        https://github.com/tomchristie/django-rest-framework/issues/669
        """
        data = self.data
        data['created'] = 0

        serializer = CommentSerializer(data=data)
        self.assertEqual(serializer.is_valid(), False)

        self.assertIn('created', serializer.errors)

    def test_missing_model_field_exception_msg(self):
        """
        Assert that a meaningful exception message is outputted when the model
        field is missing (e.g. when mistyping ``model``).
        """
        try:
            serializer = BrokenModelSerializer()
        except AssertionError as e:
            self.assertEqual(e.args[0], "Serializer class 'BrokenModelSerializer' is missing 'model' Meta option")
        except:
            self.fail('Wrong exception type thrown.')


class CustomValidationTests(TestCase):
    class CommentSerializerWithFieldValidator(CommentSerializer):

        def validate_email(self, attrs, source):
            value = attrs[source]
            return attrs

        def validate_content(self, attrs, source):
            value = attrs[source]
            if "test" not in value:
                raise serializers.ValidationError("Test not in value")
            return attrs

    def test_field_validation(self):
        data = {
            'email': 'tom@example.com',
            'content': 'A test comment',
            'created': datetime.datetime(2012, 1, 1)
        }

        serializer = self.CommentSerializerWithFieldValidator(data=data)
        self.assertTrue(serializer.is_valid())

        data['content'] = 'This should not validate'

        serializer = self.CommentSerializerWithFieldValidator(data=data)
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'content': ['Test not in value']})

    def test_missing_data(self):
        """
        Make sure that validate_content isn't called if the field is missing
        """
        incomplete_data = {
            'email': 'tom@example.com',
            'created': datetime.datetime(2012, 1, 1)
        }
        serializer = self.CommentSerializerWithFieldValidator(data=incomplete_data)
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'content': ['This field is required.']})

    def test_wrong_data(self):
        """
        Make sure that validate_content isn't called if the field input is wrong
        """
        wrong_data = {
            'email': 'not an email',
            'content': 'A test comment',
            'created': datetime.datetime(2012, 1, 1)
        }
        serializer = self.CommentSerializerWithFieldValidator(data=wrong_data)
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'email': ['Enter a valid e-mail address.']})


class PositiveIntegerAsChoiceTests(TestCase):
    def test_positive_integer_in_json_is_correctly_parsed(self):
        data = {'some_integer': 1}
        serializer = PositiveIntegerAsChoiceSerializer(data=data)
        self.assertEqual(serializer.is_valid(), True)


class ModelValidationTests(TestCase):
    def test_validate_unique(self):
        """
        Just check if serializers.ModelSerializer handles unique checks via .full_clean()
        """
        serializer = AlbumsSerializer(data={'title': 'a'})
        serializer.is_valid()
        serializer.save()
        second_serializer = AlbumsSerializer(data={'title': 'a'})
        self.assertFalse(second_serializer.is_valid())
        self.assertEqual(second_serializer.errors,  {'title': ['Album with this Title already exists.']})

    def test_foreign_key_with_partial(self):
        """
        Test ModelSerializer validation with partial=True

        Specifically test foreign key validation.
        """

        album = Album(title='test')
        album.save()

        class PhotoSerializer(serializers.ModelSerializer):
            class Meta:
                model = Photo

        photo_serializer = PhotoSerializer(data={'description': 'test', 'album': album.pk})
        self.assertTrue(photo_serializer.is_valid())
        photo = photo_serializer.save()

        # Updating only the album (foreign key)
        photo_serializer = PhotoSerializer(instance=photo, data={'album': album.pk}, partial=True)
        self.assertTrue(photo_serializer.is_valid())
        self.assertTrue(photo_serializer.save())

        # Updating only the description
        photo_serializer = PhotoSerializer(instance=photo,
                                           data={'description': 'new'},
                                           partial=True)

        self.assertTrue(photo_serializer.is_valid())
        self.assertTrue(photo_serializer.save())


class RegexValidationTest(TestCase):
    def test_create_failed(self):
        serializer = BookSerializer(data={'isbn': '1234567890'})
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'isbn': ['isbn has to be exact 13 numbers']})

        serializer = BookSerializer(data={'isbn': '12345678901234'})
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'isbn': ['isbn has to be exact 13 numbers']})

        serializer = BookSerializer(data={'isbn': 'abcdefghijklm'})
        self.assertFalse(serializer.is_valid())
        self.assertEqual(serializer.errors, {'isbn': ['isbn has to be exact 13 numbers']})

    def test_create_success(self):
        serializer = BookSerializer(data={'isbn': '1234567890123'})
        self.assertTrue(serializer.is_valid())


class MetadataTests(TestCase):
    def test_empty(self):
        serializer = CommentSerializer()
        expected = {
            'email': serializers.CharField,
            'content': serializers.CharField,
            'created': serializers.DateTimeField
        }
        for field_name, field in expected.items():
            self.assertTrue(isinstance(serializer.data.fields[field_name], field))


class ManyToManyTests(TestCase):
    def setUp(self):
        class ManyToManySerializer(serializers.ModelSerializer):
            class Meta:
                model = ManyToManyModel

        self.serializer_class = ManyToManySerializer

        # An anchor instance to use for the relationship
        self.anchor = Anchor()
        self.anchor.save()

        # A model instance with a many to many relationship to the anchor
        self.instance = ManyToManyModel()
        self.instance.save()
        self.instance.rel.add(self.anchor)

        # A serialized representation of the model instance
        self.data = {'id': 1, 'rel': [self.anchor.id]}

    def test_retrieve(self):
        """
        Serialize an instance of a model with a ManyToMany relationship.
        """
        serializer = self.serializer_class(instance=self.instance)
        expected = self.data
        self.assertEqual(serializer.data, expected)

    def test_create(self):
        """
        Create an instance of a model with a ManyToMany relationship.
        """
        data = {'rel': [self.anchor.id]}
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ManyToManyModel.objects.all()), 2)
        self.assertEqual(instance.pk, 2)
        self.assertEqual(list(instance.rel.all()), [self.anchor])

    def test_update(self):
        """
        Update an instance of a model with a ManyToMany relationship.
        """
        new_anchor = Anchor()
        new_anchor.save()
        data = {'rel': [self.anchor.id, new_anchor.id]}
        serializer = self.serializer_class(self.instance, data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ManyToManyModel.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        self.assertEqual(list(instance.rel.all()), [self.anchor, new_anchor])

    def test_create_empty_relationship(self):
        """
        Create an instance of a model with a ManyToMany relationship,
        containing no items.
        """
        data = {'rel': []}
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ManyToManyModel.objects.all()), 2)
        self.assertEqual(instance.pk, 2)
        self.assertEqual(list(instance.rel.all()), [])

    def test_update_empty_relationship(self):
        """
        Update an instance of a model with a ManyToMany relationship,
        containing no items.
        """
        new_anchor = Anchor()
        new_anchor.save()
        data = {'rel': []}
        serializer = self.serializer_class(self.instance, data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ManyToManyModel.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        self.assertEqual(list(instance.rel.all()), [])

    def test_create_empty_relationship_flat_data(self):
        """
        Create an instance of a model with a ManyToMany relationship,
        containing no items, using a representation that does not support
        lists (eg form data).
        """
        data = MultiValueDict()
        data.setlist('rel', [''])
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ManyToManyModel.objects.all()), 2)
        self.assertEqual(instance.pk, 2)
        self.assertEqual(list(instance.rel.all()), [])


class ReadOnlyManyToManyTests(TestCase):
    def setUp(self):
        class ReadOnlyManyToManySerializer(serializers.ModelSerializer):
            rel = serializers.RelatedField(many=True, read_only=True)

            class Meta:
                model = ReadOnlyManyToManyModel

        self.serializer_class = ReadOnlyManyToManySerializer

        # An anchor instance to use for the relationship
        self.anchor = Anchor()
        self.anchor.save()

        # A model instance with a many to many relationship to the anchor
        self.instance = ReadOnlyManyToManyModel()
        self.instance.save()
        self.instance.rel.add(self.anchor)

        # A serialized representation of the model instance
        self.data = {'rel': [self.anchor.id], 'id': 1, 'text': 'anchor'}

    def test_update(self):
        """
        Attempt to update an instance of a model with a ManyToMany
        relationship.  Not updated due to read_only=True
        """
        new_anchor = Anchor()
        new_anchor.save()
        data = {'rel': [self.anchor.id, new_anchor.id]}
        serializer = self.serializer_class(self.instance, data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ReadOnlyManyToManyModel.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        # rel is still as original (1 entry)
        self.assertEqual(list(instance.rel.all()), [self.anchor])

    def test_update_without_relationship(self):
        """
        Attempt to update an instance of a model where many to ManyToMany
        relationship is not supplied.  Not updated due to read_only=True
        """
        new_anchor = Anchor()
        new_anchor.save()
        data = {}
        serializer = self.serializer_class(self.instance, data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(ReadOnlyManyToManyModel.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        # rel is still as original (1 entry)
        self.assertEqual(list(instance.rel.all()), [self.anchor])


class DefaultValueTests(TestCase):
    def setUp(self):
        class DefaultValueSerializer(serializers.ModelSerializer):
            class Meta:
                model = DefaultValueModel

        self.serializer_class = DefaultValueSerializer
        self.objects = DefaultValueModel.objects

    def test_create_using_default(self):
        data = {}
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(self.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        self.assertEqual(instance.text, 'foobar')

    def test_create_overriding_default(self):
        data = {'text': 'overridden'}
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(self.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        self.assertEqual(instance.text, 'overridden')

    def test_partial_update_default(self):
        """ Regression test for issue #532 """
        data = {'text': 'overridden'}
        serializer = self.serializer_class(data=data, partial=True)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()

        data = {'extra': 'extra_value'}
        serializer = self.serializer_class(instance=instance, data=data, partial=True)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()

        self.assertEqual(instance.extra, 'extra_value')
        self.assertEqual(instance.text, 'overridden')


class CallableDefaultValueTests(TestCase):
    def setUp(self):
        class CallableDefaultValueSerializer(serializers.ModelSerializer):
            class Meta:
                model = CallableDefaultValueModel

        self.serializer_class = CallableDefaultValueSerializer
        self.objects = CallableDefaultValueModel.objects

    def test_create_using_default(self):
        data = {}
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(self.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        self.assertEqual(instance.text, 'foobar')

    def test_create_overriding_default(self):
        data = {'text': 'overridden'}
        serializer = self.serializer_class(data=data)
        self.assertEqual(serializer.is_valid(), True)
        instance = serializer.save()
        self.assertEqual(len(self.objects.all()), 1)
        self.assertEqual(instance.pk, 1)
        self.assertEqual(instance.text, 'overridden')


class ManyRelatedTests(TestCase):
    def test_reverse_relations(self):
        post = BlogPost.objects.create(title="Test blog post")
        post.blogpostcomment_set.create(text="I hate this blog post")
        post.blogpostcomment_set.create(text="I love this blog post")

        class BlogPostCommentSerializer(serializers.Serializer):
            text = serializers.CharField()

        class BlogPostSerializer(serializers.Serializer):
            title = serializers.CharField()
            comments = BlogPostCommentSerializer(source='blogpostcomment_set')

        serializer = BlogPostSerializer(instance=post)
        expected = {
            'title': 'Test blog post',
            'comments': [
                {'text': 'I hate this blog post'},
                {'text': 'I love this blog post'}
            ]
        }

        self.assertEqual(serializer.data, expected)

    def test_include_reverse_relations(self):
        post = BlogPost.objects.create(title="Test blog post")
        post.blogpostcomment_set.create(text="I hate this blog post")
        post.blogpostcomment_set.create(text="I love this blog post")

        class BlogPostSerializer(serializers.ModelSerializer):
            class Meta:
                model = BlogPost
                fields = ('id', 'title', 'blogpostcomment_set')

        serializer = BlogPostSerializer(instance=post)
        expected = {
            'id': 1, 'title': 'Test blog post', 'blogpostcomment_set': [1, 2]
        }
        self.assertEqual(serializer.data, expected)

    def test_depth_include_reverse_relations(self):
        post = BlogPost.objects.create(title="Test blog post")
        post.blogpostcomment_set.create(text="I hate this blog post")
        post.blogpostcomment_set.create(text="I love this blog post")

        class BlogPostSerializer(serializers.ModelSerializer):
            class Meta:
                model = BlogPost
                fields = ('id', 'title', 'blogpostcomment_set')
                depth = 1

        serializer = BlogPostSerializer(instance=post)
        expected = {
            'id': 1, 'title': 'Test blog post',
            'blogpostcomment_set': [
                {'id': 1, 'text': 'I hate this blog post', 'blog_post': 1},
                {'id': 2, 'text': 'I love this blog post', 'blog_post': 1}
            ]
        }
        self.assertEqual(serializer.data, expected)

    def test_callable_source(self):
        post = BlogPost.objects.create(title="Test blog post")
        post.blogpostcomment_set.create(text="I love this blog post")

        class BlogPostCommentSerializer(serializers.Serializer):
            text = serializers.CharField()

        class BlogPostSerializer(serializers.Serializer):
            title = serializers.CharField()
            first_comment = BlogPostCommentSerializer(source='get_first_comment')

        serializer = BlogPostSerializer(post)

        expected = {
            'title': 'Test blog post',
            'first_comment': {'text': 'I love this blog post'}
        }
        self.assertEqual(serializer.data, expected)


class RelatedTraversalTest(TestCase):
    def test_nested_traversal(self):
        """
        Source argument should support dotted.source notation.
        """
        user = Person.objects.create(name="django")
        post = BlogPost.objects.create(title="Test blog post", writer=user)
        post.blogpostcomment_set.create(text="I love this blog post")

        class PersonSerializer(serializers.ModelSerializer):
            class Meta:
                model = Person
                fields = ("name", "age")

        class BlogPostCommentSerializer(serializers.ModelSerializer):
            class Meta:
                model = BlogPostComment
                fields = ("text", "post_owner")

            text = serializers.CharField()
            post_owner = PersonSerializer(source='blog_post.writer')

        class BlogPostSerializer(serializers.Serializer):
            title = serializers.CharField()
            comments = BlogPostCommentSerializer(source='blogpostcomment_set')

        serializer = BlogPostSerializer(instance=post)

        expected = {
            'title': 'Test blog post',
            'comments': [{
                'text': 'I love this blog post',
                'post_owner': {
                    "name": "django",
                    "age": None
                }
            }]
        }

        self.assertEqual(serializer.data, expected)

    def test_nested_traversal_with_none(self):
        """
        If a component of the dotted.source is None, return None for the field.
        """
        from rest_framework.tests.models import NullableForeignKeySource
        instance = NullableForeignKeySource.objects.create(name='Source with null FK')

        class NullableSourceSerializer(serializers.Serializer):
            target_name = serializers.Field(source='target.name')

        serializer = NullableSourceSerializer(instance=instance)

        expected = {
            'target_name': None,
        }

        self.assertEqual(serializer.data, expected)


class SerializerMethodFieldTests(TestCase):
    def setUp(self):

        class BoopSerializer(serializers.Serializer):
            beep = serializers.SerializerMethodField('get_beep')
            boop = serializers.Field()
            boop_count = serializers.SerializerMethodField('get_boop_count')

            def get_beep(self, obj):
                return 'hello!'

            def get_boop_count(self, obj):
                return len(obj.boop)

        self.serializer_class = BoopSerializer

    def test_serializer_method_field(self):

        class MyModel(object):
            boop = ['a', 'b', 'c']

        source_data = MyModel()

        serializer = self.serializer_class(source_data)

        expected = {
            'beep': 'hello!',
            'boop': ['a', 'b', 'c'],
            'boop_count': 3,
        }

        self.assertEqual(serializer.data, expected)


# Test for issue #324
class BlankFieldTests(TestCase):
    def setUp(self):

        class BlankFieldModelSerializer(serializers.ModelSerializer):
            class Meta:
                model = BlankFieldModel

        class BlankFieldSerializer(serializers.Serializer):
            title = serializers.CharField(required=False)

        class NotBlankFieldModelSerializer(serializers.ModelSerializer):
            class Meta:
                model = BasicModel

        class NotBlankFieldSerializer(serializers.Serializer):
            title = serializers.CharField()

        self.model_serializer_class = BlankFieldModelSerializer
        self.serializer_class = BlankFieldSerializer
        self.not_blank_model_serializer_class = NotBlankFieldModelSerializer
        self.not_blank_serializer_class = NotBlankFieldSerializer
        self.data = {'title': ''}

    def test_create_blank_field(self):
        serializer = self.serializer_class(data=self.data)
        self.assertEqual(serializer.is_valid(), True)

    def test_create_model_blank_field(self):
        serializer = self.model_serializer_class(data=self.data)
        self.assertEqual(serializer.is_valid(), True)

    def test_create_model_null_field(self):
        serializer = self.model_serializer_class(data={'title': None})
        self.assertEqual(serializer.is_valid(), True)

    def test_create_not_blank_field(self):
        """
        Test to ensure blank data in a field not marked as blank=True
        is considered invalid in a non-model serializer
        """
        serializer = self.not_blank_serializer_class(data=self.data)
        self.assertEqual(serializer.is_valid(), False)

    def test_create_model_not_blank_field(self):
        """
        Test to ensure blank data in a field not marked as blank=True
        is considered invalid in a model serializer
        """
        serializer = self.not_blank_model_serializer_class(data=self.data)
        self.assertEqual(serializer.is_valid(), False)

    def test_create_model_empty_field(self):
        serializer = self.model_serializer_class(data={})
        self.assertEqual(serializer.is_valid(), True)


#test for issue #460
class SerializerPickleTests(TestCase):
    """
    Test pickleability of the output of Serializers
    """
    def test_pickle_simple_model_serializer_data(self):
        """
        Test simple serializer
        """
        pickle.dumps(PersonSerializer(Person(name="Methusela", age=969)).data)

    def test_pickle_inner_serializer(self):
        """
        Test pickling a serializer whose resulting .data (a SortedDictWithMetadata) will
        have unpickleable meta data--in order to make sure metadata doesn't get pulled into the pickle.
        See DictWithMetadata.__getstate__
        """
        class InnerPersonSerializer(serializers.ModelSerializer):
            class Meta:
                model = Person
                fields = ('name', 'age')
        pickle.dumps(InnerPersonSerializer(Person(name="Noah", age=950)).data, 0)

    def test_getstate_method_should_not_return_none(self):
        """
        Regression test for #645.
        """
        data = serializers.DictWithMetadata({1: 1})
        self.assertEqual(data.__getstate__(), serializers.SortedDict({1: 1}))

    def test_serializer_data_is_pickleable(self):
        """
        Another regression test for #645.
        """
        data = serializers.SortedDictWithMetadata({1: 1})
        repr(pickle.loads(pickle.dumps(data, 0)))


# test for issue #725
class SeveralChoicesModel(models.Model):
    color = models.CharField(
        max_length=10,
        choices=[('red', 'Red'), ('green', 'Green'), ('blue', 'Blue')],
        blank=False
    )
    drink = models.CharField(
        max_length=10,
        choices=[('beer', 'Beer'), ('wine', 'Wine'), ('cider', 'Cider')],
        blank=False,
        default='beer'
    )
    os = models.CharField(
        max_length=10,
        choices=[('linux', 'Linux'), ('osx', 'OSX'), ('windows', 'Windows')],
        blank=True
    )
    music_genre = models.CharField(
        max_length=10,
        choices=[('rock', 'Rock'), ('metal', 'Metal'), ('grunge', 'Grunge')],
        blank=True,
        default='metal'
    )


class SerializerChoiceFields(TestCase):

    def setUp(self):
        super(SerializerChoiceFields, self).setUp()

        class SeveralChoicesSerializer(serializers.ModelSerializer):
            class Meta:
                model = SeveralChoicesModel
                fields = ('color', 'drink', 'os', 'music_genre')

        self.several_choices_serializer = SeveralChoicesSerializer

    def test_choices_blank_false_not_default(self):
        serializer = self.several_choices_serializer()
        self.assertEqual(
            serializer.fields['color'].choices,
            [('red', 'Red'), ('green', 'Green'), ('blue', 'Blue')]
        )

    def test_choices_blank_false_with_default(self):
        serializer = self.several_choices_serializer()
        self.assertEqual(
            serializer.fields['drink'].choices,
            [('beer', 'Beer'), ('wine', 'Wine'), ('cider', 'Cider')]
        )

    def test_choices_blank_true_not_default(self):
        serializer = self.several_choices_serializer()
        self.assertEqual(
            serializer.fields['os'].choices,
            BLANK_CHOICE_DASH + [('linux', 'Linux'), ('osx', 'OSX'), ('windows', 'Windows')]
        )

    def test_choices_blank_true_with_default(self):
        serializer = self.several_choices_serializer()
        self.assertEqual(
            serializer.fields['music_genre'].choices,
            BLANK_CHOICE_DASH + [('rock', 'Rock'), ('metal', 'Metal'), ('grunge', 'Grunge')]
        )


# Regression tests for #675
class Ticket(models.Model):
    assigned = models.ForeignKey(
        Person, related_name='assigned_tickets')
    reviewer = models.ForeignKey(
        Person, blank=True, null=True, related_name='reviewed_tickets')


class SerializerRelatedChoicesTest(TestCase):

    def setUp(self):
        super(SerializerRelatedChoicesTest, self).setUp()

        class RelatedChoicesSerializer(serializers.ModelSerializer):
            class Meta:
                model = Ticket
                fields = ('assigned', 'reviewer')

        self.related_fields_serializer = RelatedChoicesSerializer

    def test_empty_queryset_required(self):
        serializer = self.related_fields_serializer()
        self.assertEqual(serializer.fields['assigned'].queryset.count(), 0)
        self.assertEqual(
            [x for x in serializer.fields['assigned'].widget.choices],
            []
        )

    def test_empty_queryset_not_required(self):
        serializer = self.related_fields_serializer()
        self.assertEqual(serializer.fields['reviewer'].queryset.count(), 0)
        self.assertEqual(
            [x for x in serializer.fields['reviewer'].widget.choices],
            [(u'', u'---------')]
        )

    def test_with_some_persons_required(self):
        Person.objects.create(name="Lionel Messi")
        Person.objects.create(name="Xavi Hernandez")
        serializer = self.related_fields_serializer()
        self.assertEqual(serializer.fields['assigned'].queryset.count(), 2)
        self.assertEqual(
            [x for x in serializer.fields['assigned'].widget.choices],
            [(1, u'Person object - 1'), (2, u'Person object - 2')]
        )

    def test_with_some_persons_not_required(self):
        Person.objects.create(name="Lionel Messi")
        Person.objects.create(name="Xavi Hernandez")
        serializer = self.related_fields_serializer()
        self.assertEqual(serializer.fields['reviewer'].queryset.count(), 2)
        self.assertEqual(
            [x for x in serializer.fields['reviewer'].widget.choices],
            [(u'', u'---------'), (1, u'Person object - 1'), (2, u'Person object - 2')]
        )


class DepthTest(TestCase):
    def test_implicit_nesting(self):

        writer = Person.objects.create(name="django", age=1)
        post = BlogPost.objects.create(title="Test blog post", writer=writer)
        comment = BlogPostComment.objects.create(text="Test blog post comment", blog_post=post)

        class BlogPostCommentSerializer(serializers.ModelSerializer):
            class Meta:
                model = BlogPostComment
                depth = 2

        serializer = BlogPostCommentSerializer(instance=comment)
        expected = {'id': 1, 'text': 'Test blog post comment', 'blog_post': {'id': 1, 'title': 'Test blog post',
                    'writer': {'id': 1, 'name': 'django', 'age': 1}}}

        self.assertEqual(serializer.data, expected)

    def test_explicit_nesting(self):
        writer = Person.objects.create(name="django", age=1)
        post = BlogPost.objects.create(title="Test blog post", writer=writer)
        comment = BlogPostComment.objects.create(text="Test blog post comment", blog_post=post)

        class PersonSerializer(serializers.ModelSerializer):
            class Meta:
                model = Person

        class BlogPostSerializer(serializers.ModelSerializer):
            writer = PersonSerializer()

            class Meta:
                model = BlogPost

        class BlogPostCommentSerializer(serializers.ModelSerializer):
            blog_post = BlogPostSerializer()

            class Meta:
                model = BlogPostComment

        serializer = BlogPostCommentSerializer(instance=comment)
        expected = {'id': 1, 'text': 'Test blog post comment', 'blog_post': {'id': 1, 'title': 'Test blog post',
                    'writer': {'id': 1, 'name': 'django', 'age': 1}}}

        self.assertEqual(serializer.data, expected)


class NestedSerializerContextTests(TestCase):

    def test_nested_serializer_context(self):
        """
        Regression for #497

        https://github.com/tomchristie/django-rest-framework/issues/497
        """
        class PhotoSerializer(serializers.ModelSerializer):
            class Meta:
                model = Photo
                fields = ("description", "callable")

            callable = serializers.SerializerMethodField('_callable')

            def _callable(self, instance):
                if not 'context_item' in self.context:
                    raise RuntimeError("context isn't getting passed into 2nd level nested serializer")
                return "success"

        class AlbumSerializer(serializers.ModelSerializer):
            class Meta:
                model = Album
                fields = ("photo_set", "callable")

            photo_set = PhotoSerializer(source="photo_set")
            callable = serializers.SerializerMethodField("_callable")

            def _callable(self, instance):
                if not 'context_item' in self.context:
                    raise RuntimeError("context isn't getting passed into 1st level nested serializer")
                return "success"

        class AlbumCollection(object):
            albums = None

        class AlbumCollectionSerializer(serializers.Serializer):
            albums = AlbumSerializer(source="albums")

        album1 = Album.objects.create(title="album 1")
        album2 = Album.objects.create(title="album 2")
        Photo.objects.create(description="Bigfoot", album=album1)
        Photo.objects.create(description="Unicorn", album=album1)
        Photo.objects.create(description="Yeti", album=album2)
        Photo.objects.create(description="Sasquatch", album=album2)
        album_collection = AlbumCollection()
        album_collection.albums = [album1, album2]

        # This will raise RuntimeError if context doesn't get passed correctly to the nested Serializers
        AlbumCollectionSerializer(album_collection, context={'context_item': 'album context'}).data


class DeserializeListTestCase(TestCase):

    def setUp(self):
        self.data = {
            'email': 'nobody@nowhere.com',
            'content': 'This is some test content',
            'created': datetime.datetime(2013, 3, 7),
        }

    def test_no_errors(self):
        data = [self.data.copy() for x in range(0, 3)]
        serializer = CommentSerializer(data=data, many=True)
        self.assertTrue(serializer.is_valid())
        self.assertTrue(isinstance(serializer.object, list))
        self.assertTrue(
            all((isinstance(item, Comment) for item in serializer.object))
        )

    def test_errors_return_as_list(self):
        invalid_item = self.data.copy()
        invalid_item['email'] = ''
        data = [self.data.copy(), invalid_item, self.data.copy()]

        serializer = CommentSerializer(data=data, many=True)
        self.assertFalse(serializer.is_valid())
        expected = [{}, {'email': ['This field is required.']}, {}]
        self.assertEqual(serializer.errors, expected)
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-25 17:30:37 +0000