import json from django.core import exceptions, serializers from . import PostgresSQLTestCase from .models import HStoreModel try: from django.contrib.postgres import forms from django.contrib.postgres.fields import HStoreField from django.contrib.postgres.validators import KeysValidator except ImportError: pass class SimpleTests(PostgresSQLTestCase): apps = ['django.contrib.postgres'] def test_save_load_success(self): value = {'a': 'b'} instance = HStoreModel(field=value) instance.save() reloaded = HStoreModel.objects.get() self.assertEqual(reloaded.field, value) def test_null(self): instance = HStoreModel(field=None) instance.save() reloaded = HStoreModel.objects.get() self.assertEqual(reloaded.field, None) def test_value_null(self): value = {'a': None} instance = HStoreModel(field=value) instance.save() reloaded = HStoreModel.objects.get() self.assertEqual(reloaded.field, value) class TestQuerying(PostgresSQLTestCase): def setUp(self): self.objs = [ HStoreModel.objects.create(field={'a': 'b'}), HStoreModel.objects.create(field={'a': 'b', 'c': 'd'}), HStoreModel.objects.create(field={'c': 'd'}), HStoreModel.objects.create(field={}), HStoreModel.objects.create(field=None), ] def test_exact(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__exact={'a': 'b'}), self.objs[:1] ) def test_contained_by(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__contained_by={'a': 'b', 'c': 'd'}), self.objs[:4] ) def test_contains(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__contains={'a': 'b'}), self.objs[:2] ) def test_has_key(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__has_key='c'), self.objs[1:3] ) def test_has_keys(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__has_keys=['a', 'c']), self.objs[1:2] ) def test_key_transform(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__a='b'), self.objs[:2] ) def test_keys(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__keys=['a']), self.objs[:1] ) def test_values(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__values=['b']), self.objs[:1] ) def test_field_chaining(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__a__contains='b'), self.objs[:2] ) def test_keys_contains(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__keys__contains=['a']), self.objs[:2] ) def test_values_overlap(self): self.assertSequenceEqual( HStoreModel.objects.filter(field__values__overlap=['b', 'd']), self.objs[:3] ) def test_key_isnull(self): obj = HStoreModel.objects.create(field={'a': None}) self.assertSequenceEqual( HStoreModel.objects.filter(field__a__isnull=True), self.objs[2:5] + [obj] ) self.assertSequenceEqual( HStoreModel.objects.filter(field__a__isnull=False), self.objs[:2] ) class TestSerialization(PostgresSQLTestCase): test_data = '[{"fields": {"field": "{\\"a\\": \\"b\\"}"}, "model": "postgres_tests.hstoremodel", "pk": null}]' def test_dumping(self): instance = HStoreModel(field={'a': 'b'}) 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, {'a': 'b'}) class TestValidation(PostgresSQLTestCase): def test_not_a_string(self): field = HStoreField() with self.assertRaises(exceptions.ValidationError) as cm: field.clean({'a': 1}, None) self.assertEqual(cm.exception.code, 'not_a_string') self.assertEqual(cm.exception.message % cm.exception.params, 'The value of "a" is not a string.') class TestFormField(PostgresSQLTestCase): def test_valid(self): field = forms.HStoreField() value = field.clean('{"a": "b"}') self.assertEqual(value, {'a': 'b'}) def test_invalid_json(self): field = forms.HStoreField() with self.assertRaises(exceptions.ValidationError) as cm: field.clean('{"a": "b"') self.assertEqual(cm.exception.messages[0], 'Could not load JSON data.') self.assertEqual(cm.exception.code, 'invalid_json') def test_not_string_values(self): field = forms.HStoreField() value = field.clean('{"a": 1}') self.assertEqual(value, {'a': '1'}) def test_empty(self): field = forms.HStoreField(required=False) value = field.clean('') self.assertEqual(value, {}) def test_model_field_formfield(self): model_field = HStoreField() form_field = model_field.formfield() self.assertIsInstance(form_field, forms.HStoreField) def test_empty_field_has_not_changed(self): class HStoreFormTest(forms.Form): f1 = HStoreField() form_w_hstore = HStoreFormTest() self.assertFalse(form_w_hstore.has_changed()) class TestValidator(PostgresSQLTestCase): def test_simple_valid(self): validator = KeysValidator(keys=['a', 'b']) validator({'a': 'foo', 'b': 'bar', 'c': 'baz'}) def test_missing_keys(self): validator = KeysValidator(keys=['a', 'b']) with self.assertRaises(exceptions.ValidationError) as cm: validator({'a': 'foo', 'c': 'baz'}) self.assertEqual(cm.exception.messages[0], 'Some keys were missing: b') self.assertEqual(cm.exception.code, 'missing_keys') def test_strict_valid(self): validator = KeysValidator(keys=['a', 'b'], strict=True) validator({'a': 'foo', 'b': 'bar'}) def test_extra_keys(self): validator = KeysValidator(keys=['a', 'b'], strict=True) with self.assertRaises(exceptions.ValidationError) as cm: validator({'a': 'foo', 'b': 'bar', 'c': 'baz'}) self.assertEqual(cm.exception.messages[0], 'Some unknown keys were provided: c') self.assertEqual(cm.exception.code, 'extra_keys') def test_custom_messages(self): messages = { 'missing_keys': 'Foobar', } validator = KeysValidator(keys=['a', 'b'], strict=True, messages=messages) with self.assertRaises(exceptions.ValidationError) as cm: validator({'a': 'foo', 'c': 'baz'}) self.assertEqual(cm.exception.messages[0], 'Foobar') self.assertEqual(cm.exception.code, 'missing_keys') with self.assertRaises(exceptions.ValidationError) as cm: validator({'a': 'foo', 'b': 'bar', 'c': 'baz'}) self.assertEqual(cm.exception.messages[0], 'Some unknown keys were provided: c') self.assertEqual(cm.exception.code, 'extra_keys') def test_deconstruct(self): messages = { 'missing_keys': 'Foobar', } validator = KeysValidator(keys=['a', 'b'], strict=True, messages=messages) path, args, kwargs = validator.deconstruct() self.assertEqual(path, 'django.contrib.postgres.validators.KeysValidator') self.assertEqual(args, ()) self.assertEqual(kwargs, {'keys': ['a', 'b'], 'strict': True, 'messages': messages})