import decimal import json import unittest import uuid from django import forms from django.core import exceptions, serializers, validators from django.core.management import call_command from django.db import IntegrityError, connection, models from django.test import TransactionTestCase, override_settings from django.utils import timezone from . import PostgreSQLTestCase from .models import ( ArrayFieldSubclass, CharArrayModel, DateTimeArrayModel, IntegerArrayModel, NestedIntegerArrayModel, NullableIntegerArrayModel, OtherTypesArrayModel, ) try: from django.contrib.postgres.fields import ArrayField from django.contrib.postgres.forms import SimpleArrayField, SplitArrayField except ImportError: pass class TestSaveLoad(PostgreSQLTestCase): def test_integer(self): instance = IntegerArrayModel(field=[1, 2, 3]) instance.save() loaded = IntegerArrayModel.objects.get() self.assertEqual(instance.field, loaded.field) def test_char(self): instance = CharArrayModel(field=['hello', 'goodbye']) instance.save() loaded = CharArrayModel.objects.get() self.assertEqual(instance.field, loaded.field) def test_dates(self): instance = DateTimeArrayModel( datetimes=[timezone.now()], dates=[timezone.now().date()], times=[timezone.now().time()], ) instance.save() loaded = DateTimeArrayModel.objects.get() self.assertEqual(instance.datetimes, loaded.datetimes) self.assertEqual(instance.dates, loaded.dates) self.assertEqual(instance.times, loaded.times) def test_tuples(self): instance = IntegerArrayModel(field=(1,)) instance.save() loaded = IntegerArrayModel.objects.get() self.assertSequenceEqual(instance.field, loaded.field) def test_integers_passed_as_strings(self): # This checks that get_prep_value is deferred properly instance = IntegerArrayModel(field=['1']) instance.save() loaded = IntegerArrayModel.objects.get() self.assertEqual(loaded.field, [1]) def test_default_null(self): instance = NullableIntegerArrayModel() instance.save() loaded = NullableIntegerArrayModel.objects.get(pk=instance.pk) self.assertEqual(loaded.field, None) self.assertEqual(instance.field, loaded.field) def test_null_handling(self): instance = NullableIntegerArrayModel(field=None) instance.save() loaded = NullableIntegerArrayModel.objects.get() self.assertEqual(instance.field, loaded.field) instance = IntegerArrayModel(field=None) with self.assertRaises(IntegrityError): instance.save() def test_nested(self): instance = NestedIntegerArrayModel(field=[[1, 2], [3, 4]]) instance.save() loaded = NestedIntegerArrayModel.objects.get() self.assertEqual(instance.field, loaded.field) def test_other_array_types(self): instance = OtherTypesArrayModel( ips=['192.168.0.1', '::1'], uuids=[uuid.uuid4()], decimals=[decimal.Decimal(1.25), 1.75], ) instance.save() loaded = OtherTypesArrayModel.objects.get() self.assertEqual(instance.ips, loaded.ips) self.assertEqual(instance.uuids, loaded.uuids) self.assertEqual(instance.decimals, loaded.decimals) def test_model_set_on_base_field(self): instance = IntegerArrayModel() field = instance._meta.get_field('field') self.assertEqual(field.model, IntegerArrayModel) self.assertEqual(field.base_field.model, IntegerArrayModel) class TestQuerying(PostgreSQLTestCase): def setUp(self): self.objs = [ NullableIntegerArrayModel.objects.create(field=[1]), NullableIntegerArrayModel.objects.create(field=[2]), NullableIntegerArrayModel.objects.create(field=[2, 3]), NullableIntegerArrayModel.objects.create(field=[20, 30, 40]), NullableIntegerArrayModel.objects.create(field=None), ] def test_exact(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__exact=[1]), self.objs[:1] ) def test_isnull(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__isnull=True), self.objs[-1:] ) def test_gt(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__gt=[0]), self.objs[:4] ) def test_lt(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__lt=[2]), self.objs[:1] ) def test_in(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__in=[[1], [2]]), self.objs[:2] ) def test_contained_by(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__contained_by=[1, 2]), self.objs[:2] ) def test_contains(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__contains=[2]), self.objs[1:3] ) def test_contains_charfield(self): # Regression for #22907 self.assertSequenceEqual( CharArrayModel.objects.filter(field__contains=['text']), [] ) def test_contained_by_charfield(self): self.assertSequenceEqual( CharArrayModel.objects.filter(field__contained_by=['text']), [] ) def test_overlap_charfield(self): self.assertSequenceEqual( CharArrayModel.objects.filter(field__overlap=['text']), [] ) def test_index(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__0=2), self.objs[1:3] ) def test_index_chained(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__0__lt=3), self.objs[0:3] ) def test_index_nested(self): instance = NestedIntegerArrayModel.objects.create(field=[[1, 2], [3, 4]]) self.assertSequenceEqual( NestedIntegerArrayModel.objects.filter(field__0__0=1), [instance] ) @unittest.expectedFailure def test_index_used_on_nested_data(self): instance = NestedIntegerArrayModel.objects.create(field=[[1, 2], [3, 4]]) self.assertSequenceEqual( NestedIntegerArrayModel.objects.filter(field__0=[1, 2]), [instance] ) def test_overlap(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__overlap=[1, 2]), self.objs[0:3] ) def test_len(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__len__lte=2), self.objs[0:3] ) def test_slice(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__0_1=[2]), self.objs[1:3] ) self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter(field__0_2=[2, 3]), self.objs[2:3] ) @unittest.expectedFailure def test_slice_nested(self): instance = NestedIntegerArrayModel.objects.create(field=[[1, 2], [3, 4]]) self.assertSequenceEqual( NestedIntegerArrayModel.objects.filter(field__0__0_1=[1]), [instance] ) def test_usage_in_subquery(self): self.assertSequenceEqual( NullableIntegerArrayModel.objects.filter( id__in=NullableIntegerArrayModel.objects.filter(field__len=3) ), [self.objs[3]] ) class TestChecks(PostgreSQLTestCase): def test_field_checks(self): field = ArrayField(models.CharField()) field.set_attributes_from_name('field') errors = field.check() self.assertEqual(len(errors), 1) self.assertEqual(errors[0].id, 'postgres.E001') def test_invalid_base_fields(self): field = ArrayField(models.ManyToManyField('postgres_tests.IntegerArrayModel')) field.set_attributes_from_name('field') errors = field.check() self.assertEqual(len(errors), 1) self.assertEqual(errors[0].id, 'postgres.E002') @unittest.skipUnless(connection.vendor == 'postgresql', "PostgreSQL specific tests") class TestMigrations(TransactionTestCase): available_apps = ['postgres_tests'] def test_deconstruct(self): field = ArrayField(models.IntegerField()) name, path, args, kwargs = field.deconstruct() new = ArrayField(*args, **kwargs) self.assertEqual(type(new.base_field), type(field.base_field)) def test_deconstruct_with_size(self): field = ArrayField(models.IntegerField(), size=3) name, path, args, kwargs = field.deconstruct() new = ArrayField(*args, **kwargs) self.assertEqual(new.size, field.size) def test_deconstruct_args(self): field = ArrayField(models.CharField(max_length=20)) name, path, args, kwargs = field.deconstruct() new = ArrayField(*args, **kwargs) self.assertEqual(new.base_field.max_length, field.base_field.max_length) def test_subclass_deconstruct(self): field = ArrayField(models.IntegerField()) name, path, args, kwargs = field.deconstruct() self.assertEqual(path, 'django.contrib.postgres.fields.ArrayField') field = ArrayFieldSubclass() name, path, args, kwargs = field.deconstruct() self.assertEqual(path, 'postgres_tests.models.ArrayFieldSubclass') @override_settings(MIGRATION_MODULES={ "postgres_tests": "postgres_tests.array_default_migrations", }) def test_adding_field_with_default(self): # See #22962 table_name = 'postgres_tests_integerarraydefaultmodel' with connection.cursor() as cursor: self.assertNotIn(table_name, connection.introspection.table_names(cursor)) call_command('migrate', 'postgres_tests', verbosity=0) with connection.cursor() as cursor: self.assertIn(table_name, connection.introspection.table_names(cursor)) call_command('migrate', 'postgres_tests', 'zero', verbosity=0) with connection.cursor() as cursor: self.assertNotIn(table_name, connection.introspection.table_names(cursor)) class TestSerialization(PostgreSQLTestCase): test_data = '[{"fields": {"field": "[\\"1\\", \\"2\\"]"}, "model": "postgres_tests.integerarraymodel", "pk": null}]' def test_dumping(self): instance = IntegerArrayModel(field=[1, 2]) data = serializers.serialize('json', [instance]) self.assertEqual(json.loads(data), json.loads(self.test_data)) def test_loading(self): instance = list(serializers.deserialize('json', self.test_data))[0].object self.assertEqual(instance.field, [1, 2]) class TestValidation(PostgreSQLTestCase): def test_unbounded(self): field = ArrayField(models.IntegerField()) with self.assertRaises(exceptions.ValidationError) as cm: field.clean([1, None], None) self.assertEqual(cm.exception.code, 'item_invalid') self.assertEqual(cm.exception.message % cm.exception.params, 'Item 1 in the array did not validate: This field cannot be null.') def test_blank_true(self): field = ArrayField(models.IntegerField(blank=True, null=True)) # This should not raise a validation error field.clean([1, None], None) def test_with_size(self): field = ArrayField(models.IntegerField(), size=3) field.clean([1, 2, 3], None) with self.assertRaises(exceptions.ValidationError) as cm: field.clean([1, 2, 3, 4], None) self.assertEqual(cm.exception.messages[0], 'List contains 4 items, it should contain no more than 3.') def test_nested_array_mismatch(self): field = ArrayField(ArrayField(models.IntegerField())) field.clean([[1, 2], [3, 4]], None) with self.assertRaises(exceptions.ValidationError) as cm: field.clean([[1, 2], [3, 4, 5]], None) self.assertEqual(cm.exception.code, 'nested_array_mismatch') self.assertEqual(cm.exception.messages[0], 'Nested arrays must have the same length.') def test_with_validators(self): field = ArrayField(models.IntegerField(validators=[validators.MinValueValidator(1)])) field.clean([1, 2], None) with self.assertRaises(exceptions.ValidationError) as cm: field.clean([0], None) self.assertEqual(cm.exception.code, 'item_invalid') self.assertEqual(cm.exception.messages[0], 'Item 0 in the array did not validate: Ensure this value is greater than or equal to 1.') class TestSimpleFormField(PostgreSQLTestCase): def test_valid(self): field = SimpleArrayField(forms.CharField()) value = field.clean('a,b,c') self.assertEqual(value, ['a', 'b', 'c']) def test_to_python_fail(self): field = SimpleArrayField(forms.IntegerField()) with self.assertRaises(exceptions.ValidationError) as cm: field.clean('a,b,9') self.assertEqual(cm.exception.messages[0], 'Item 0 in the array did not validate: Enter a whole number.') def test_validate_fail(self): field = SimpleArrayField(forms.CharField(required=True)) with self.assertRaises(exceptions.ValidationError) as cm: field.clean('a,b,') self.assertEqual(cm.exception.messages[0], 'Item 2 in the array did not validate: This field is required.') def test_validators_fail(self): field = SimpleArrayField(forms.RegexField('[a-e]{2}')) with self.assertRaises(exceptions.ValidationError) as cm: field.clean('a,bc,de') self.assertEqual(cm.exception.messages[0], 'Item 0 in the array did not validate: Enter a valid value.') def test_delimiter(self): field = SimpleArrayField(forms.CharField(), delimiter='|') value = field.clean('a|b|c') self.assertEqual(value, ['a', 'b', 'c']) def test_delimiter_with_nesting(self): field = SimpleArrayField(SimpleArrayField(forms.CharField()), delimiter='|') value = field.clean('a,b|c,d') self.assertEqual(value, [['a', 'b'], ['c', 'd']]) def test_prepare_value(self): field = SimpleArrayField(forms.CharField()) value = field.prepare_value(['a', 'b', 'c']) self.assertEqual(value, 'a,b,c') def test_max_length(self): field = SimpleArrayField(forms.CharField(), max_length=2) with self.assertRaises(exceptions.ValidationError) as cm: field.clean('a,b,c') self.assertEqual(cm.exception.messages[0], 'List contains 3 items, it should contain no more than 2.') def test_min_length(self): field = SimpleArrayField(forms.CharField(), min_length=4) with self.assertRaises(exceptions.ValidationError) as cm: field.clean('a,b,c') self.assertEqual(cm.exception.messages[0], 'List contains 3 items, it should contain no fewer than 4.') def test_required(self): field = SimpleArrayField(forms.CharField(), required=True) with self.assertRaises(exceptions.ValidationError) as cm: field.clean('') self.assertEqual(cm.exception.messages[0], 'This field is required.') def test_model_field_formfield(self): model_field = ArrayField(models.CharField(max_length=27)) form_field = model_field.formfield() self.assertIsInstance(form_field, SimpleArrayField) self.assertIsInstance(form_field.base_field, forms.CharField) self.assertEqual(form_field.base_field.max_length, 27) def test_model_field_formfield_size(self): model_field = ArrayField(models.CharField(max_length=27), size=4) form_field = model_field.formfield() self.assertIsInstance(form_field, SimpleArrayField) self.assertEqual(form_field.max_length, 4) class TestSplitFormField(PostgreSQLTestCase): def test_valid(self): class SplitForm(forms.Form): array = SplitArrayField(forms.CharField(), size=3) data = {'array_0': 'a', 'array_1': 'b', 'array_2': 'c'} form = SplitForm(data) self.assertTrue(form.is_valid()) self.assertEqual(form.cleaned_data, {'array': ['a', 'b', 'c']}) def test_required(self): class SplitForm(forms.Form): array = SplitArrayField(forms.CharField(), required=True, size=3) data = {'array_0': '', 'array_1': '', 'array_2': ''} form = SplitForm(data) self.assertFalse(form.is_valid()) self.assertEqual(form.errors, {'array': ['This field is required.']}) def test_remove_trailing_nulls(self): class SplitForm(forms.Form): array = SplitArrayField(forms.CharField(required=False), size=5, remove_trailing_nulls=True) data = {'array_0': 'a', 'array_1': '', 'array_2': 'b', 'array_3': '', 'array_4': ''} form = SplitForm(data) self.assertTrue(form.is_valid(), form.errors) self.assertEqual(form.cleaned_data, {'array': ['a', '', 'b']}) def test_required_field(self): class SplitForm(forms.Form): array = SplitArrayField(forms.CharField(), size=3) data = {'array_0': 'a', 'array_1': 'b', 'array_2': ''} form = SplitForm(data) self.assertFalse(form.is_valid()) self.assertEqual(form.errors, {'array': ['Item 2 in the array did not validate: This field is required.']}) def test_rendering(self): class SplitForm(forms.Form): array = SplitArrayField(forms.CharField(), size=3) self.assertHTMLEqual(str(SplitForm()), ''' ''')