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diff --git a/tests/test_model_field_mappings.py b/tests/test_model_field_mappings.py
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+++ b/tests/test_model_field_mappings.py
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+"""
+The `ModelSerializer` and `HyperlinkedModelSerializer` classes are essentially
+shortcuts for automatically creating serializers based on a given model class.
+
+These tests deal with ensuring that we correctly map the model fields onto
+an appropriate set of serializer fields for each case.
+"""
+from django.db import models
+from django.test import TestCase
+from rest_framework import serializers
+
+
+# Models for testing regular field mapping
+
+class RegularFieldsModel(models.Model):
+    auto_field = models.AutoField(primary_key=True)
+    big_integer_field = models.BigIntegerField()
+    boolean_field = models.BooleanField(default=False)
+    char_field = models.CharField(max_length=100)
+    comma_seperated_integer_field = models.CommaSeparatedIntegerField(max_length=100)
+    date_field = models.DateField()
+    datetime_field = models.DateTimeField()
+    decimal_field = models.DecimalField(max_digits=3, decimal_places=1)
+    email_field = models.EmailField(max_length=100)
+    float_field = models.FloatField()
+    integer_field = models.IntegerField()
+    null_boolean_field = models.NullBooleanField()
+    positive_integer_field = models.PositiveIntegerField()
+    positive_small_integer_field = models.PositiveSmallIntegerField()
+    slug_field = models.SlugField(max_length=100)
+    small_integer_field = models.SmallIntegerField()
+    text_field = models.TextField()
+    time_field = models.TimeField()
+    url_field = models.URLField(max_length=100)
+
+
+REGULAR_FIELDS_REPR = """
+TestSerializer():
+    auto_field = IntegerField(label='auto field', read_only=True)
+    big_integer_field = IntegerField(label='big integer field')
+    boolean_field = BooleanField(default=False, label='boolean field')
+    char_field = CharField(label='char field', max_length=100)
+    comma_seperated_integer_field = CharField(label='comma seperated integer field', max_length=100, validators=[<django.core.validators.RegexValidator object>])
+    date_field = DateField(label='date field')
+    datetime_field = DateTimeField(label='datetime field')
+    decimal_field = DecimalField(decimal_places=1, label='decimal field', max_digits=3)
+    email_field = EmailField(label='email field', max_length=100)
+    float_field = FloatField(label='float field')
+    integer_field = IntegerField(label='integer field')
+    null_boolean_field = BooleanField(label='null boolean field', required=False)
+    positive_integer_field = IntegerField(label='positive integer field')
+    positive_small_integer_field = IntegerField(label='positive small integer field')
+    slug_field = SlugField(label='slug field', max_length=100)
+    small_integer_field = IntegerField(label='small integer field')
+    text_field = CharField(label='text field')
+    time_field = TimeField(label='time field')
+    url_field = URLField(label='url field', max_length=100)
+""".strip()
+
+
+# Model for testing relational field mapping
+
+class ForeignKeyTargetModel(models.Model):
+    name = models.CharField(max_length=100)
+
+
+class ManyToManyTargetModel(models.Model):
+    name = models.CharField(max_length=100)
+
+
+class OneToOneTargetModel(models.Model):
+    name = models.CharField(max_length=100)
+
+
+class RelationalModel(models.Model):
+    foreign_key = models.ForeignKey(ForeignKeyTargetModel)
+    many_to_many = models.ManyToManyField(ManyToManyTargetModel)
+    one_to_one = models.OneToOneField(OneToOneTargetModel)
+
+
+RELATIONAL_FLAT_REPR = """
+TestSerializer():
+    id = IntegerField(label='ID', read_only=True)
+    foreign_key = PrimaryKeyRelatedField(label='foreign key', queryset=<django.db.models.manager.Manager object>)
+    one_to_one = PrimaryKeyRelatedField(label='one to one', queryset=<django.db.models.manager.Manager object>)
+    many_to_many = PrimaryKeyRelatedField(label='many to many', many=True, queryset=<django.db.models.manager.Manager object>)
+""".strip()
+
+
+RELATIONAL_NESTED_REPR = """
+TestSerializer():
+    id = IntegerField(label='ID', read_only=True)
+    foreign_key = NestedModelSerializer(read_only=True):
+        id = IntegerField(label='ID', read_only=True)
+        name = CharField(label='name', max_length=100)
+    one_to_one = NestedModelSerializer(read_only=True):
+        id = IntegerField(label='ID', read_only=True)
+        name = CharField(label='name', max_length=100)
+    many_to_many = NestedModelSerializer(many=True, read_only=True):
+        id = IntegerField(label='ID', read_only=True)
+        name = CharField(label='name', max_length=100)
+""".strip()
+
+
+HYPERLINKED_FLAT_REPR = """
+TestSerializer():
+    url = HyperlinkedIdentityField(view_name='relationalmodel-detail')
+    foreign_key = HyperlinkedRelatedField(label='foreign key', queryset=<django.db.models.manager.Manager object>, view_name='foreignkeytargetmodel-detail')
+    one_to_one = HyperlinkedRelatedField(label='one to one', queryset=<django.db.models.manager.Manager object>, view_name='onetoonetargetmodel-detail')
+    many_to_many = HyperlinkedRelatedField(label='many to many', many=True, queryset=<django.db.models.manager.Manager object>, view_name='manytomanytargetmodel-detail')
+""".strip()
+
+
+HYPERLINKED_NESTED_REPR = """
+TestSerializer():
+    url = HyperlinkedIdentityField(view_name='relationalmodel-detail')
+    foreign_key = NestedModelSerializer(read_only=True):
+        id = IntegerField(label='ID', read_only=True)
+        name = CharField(label='name', max_length=100)
+    one_to_one = NestedModelSerializer(read_only=True):
+        id = IntegerField(label='ID', read_only=True)
+        name = CharField(label='name', max_length=100)
+    many_to_many = NestedModelSerializer(many=True, read_only=True):
+        id = IntegerField(label='ID', read_only=True)
+        name = CharField(label='name', max_length=100)
+""".strip()
+
+
+class TestSerializerMappings(TestCase):
+    maxDiff = 10000
+
+    def test_regular_fields(self):
+        class TestSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = RegularFieldsModel
+        self.assertEqual(repr(TestSerializer()), REGULAR_FIELDS_REPR)
+
+    def test_flat_relational_fields(self):
+        class TestSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = RelationalModel
+        self.assertEqual(repr(TestSerializer()), RELATIONAL_FLAT_REPR)
+
+    def test_nested_relational_fields(self):
+        class TestSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = RelationalModel
+                depth = 1
+        self.assertEqual(repr(TestSerializer()), RELATIONAL_NESTED_REPR)
+
+    def test_flat_hyperlinked_fields(self):
+        class TestSerializer(serializers.HyperlinkedModelSerializer):
+            class Meta:
+                model = RelationalModel
+        self.assertEqual(repr(TestSerializer()), HYPERLINKED_FLAT_REPR)
+
+    def test_nested_hyperlinked_fields(self):
+        class TestSerializer(serializers.HyperlinkedModelSerializer):
+            class Meta:
+                model = RelationalModel
+                depth = 1
+        self.assertEqual(repr(TestSerializer()), HYPERLINKED_NESTED_REPR)