4bb8b313c0
create_keyspace no longer has defaults for SimpleStrategy and replication factor. changed tests to use the default keyspace, cqlengine_test for all tests. Not sure why other keyspaces were being used.
378 lines
12 KiB
Python
378 lines
12 KiB
Python
from uuid import uuid4
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import warnings
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from cqlengine.query import QueryException, ModelQuerySet, DMLQuery
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from cqlengine.tests.base import BaseCassEngTestCase
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from cqlengine.exceptions import ModelException, CQLEngineException
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from cqlengine.models import Model, ModelDefinitionException, ColumnQueryEvaluator, UndefinedKeyspaceWarning
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from cqlengine import columns
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import cqlengine
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class TestModelClassFunction(BaseCassEngTestCase):
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"""
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Tests verifying the behavior of the Model metaclass
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"""
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def test_column_attributes_handled_correctly(self):
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"""
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Tests that column attributes are moved to a _columns dict
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and replaced with simple value attributes
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"""
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class TestModel(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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text = columns.Text()
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#check class attibutes
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self.assertHasAttr(TestModel, '_columns')
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self.assertHasAttr(TestModel, 'id')
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self.assertHasAttr(TestModel, 'text')
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#check instance attributes
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inst = TestModel()
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self.assertHasAttr(inst, 'id')
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self.assertHasAttr(inst, 'text')
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self.assertIsNone(inst.id)
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self.assertIsNone(inst.text)
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def test_db_map(self):
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"""
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Tests that the db_map is properly defined
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-the db_map allows columns
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"""
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class WildDBNames(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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content = columns.Text(db_field='words_and_whatnot')
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numbers = columns.Integer(db_field='integers_etc')
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db_map = WildDBNames._db_map
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self.assertEquals(db_map['words_and_whatnot'], 'content')
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self.assertEquals(db_map['integers_etc'], 'numbers')
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def test_attempting_to_make_duplicate_column_names_fails(self):
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"""
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Tests that trying to create conflicting db column names will fail
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"""
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with self.assertRaises(ModelException):
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class BadNames(Model):
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words = columns.Text()
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content = columns.Text(db_field='words')
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def test_column_ordering_is_preserved(self):
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"""
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Tests that the _columns dics retains the ordering of the class definition
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"""
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class Stuff(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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words = columns.Text()
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content = columns.Text()
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numbers = columns.Integer()
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self.assertEquals([x for x in Stuff._columns.keys()], ['id', 'words', 'content', 'numbers'])
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def test_exception_raised_when_creating_class_without_pk(self):
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with self.assertRaises(ModelDefinitionException):
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class TestModel(Model):
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count = columns.Integer()
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text = columns.Text(required=False)
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def test_value_managers_are_keeping_model_instances_isolated(self):
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"""
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Tests that instance value managers are isolated from other instances
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"""
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class Stuff(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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num = columns.Integer()
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inst1 = Stuff(num=5)
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inst2 = Stuff(num=7)
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self.assertNotEquals(inst1.num, inst2.num)
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self.assertEquals(inst1.num, 5)
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self.assertEquals(inst2.num, 7)
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def test_superclass_fields_are_inherited(self):
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"""
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Tests that fields defined on the super class are inherited properly
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"""
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class TestModel(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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text = columns.Text()
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class InheritedModel(TestModel):
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numbers = columns.Integer()
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assert 'text' in InheritedModel._columns
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assert 'numbers' in InheritedModel._columns
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def test_column_family_name_generation(self):
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""" Tests that auto column family name generation works as expected """
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class TestModel(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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text = columns.Text()
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assert TestModel.column_family_name(include_keyspace=False) == 'test_model'
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def test_normal_fields_can_be_defined_between_primary_keys(self):
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"""
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Tests tha non primary key fields can be defined between primary key fields
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"""
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def test_at_least_one_non_primary_key_column_is_required(self):
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"""
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Tests that an error is raised if a model doesn't contain at least one primary key field
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"""
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def test_model_keyspace_attribute_must_be_a_string(self):
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"""
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Tests that users can't set the keyspace to None, or something else
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"""
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def test_indexes_arent_allowed_on_models_with_multiple_primary_keys(self):
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"""
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Tests that attempting to define an index on a model with multiple primary keys fails
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"""
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def test_meta_data_is_not_inherited(self):
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"""
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Test that metadata defined in one class, is not inherited by subclasses
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"""
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def test_partition_keys(self):
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"""
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Test compound partition key definition
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"""
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class ModelWithPartitionKeys(cqlengine.Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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c1 = cqlengine.Text(primary_key=True)
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p1 = cqlengine.Text(partition_key=True)
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p2 = cqlengine.Text(partition_key=True)
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cols = ModelWithPartitionKeys._columns
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self.assertTrue(cols['c1'].primary_key)
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self.assertFalse(cols['c1'].partition_key)
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self.assertTrue(cols['p1'].primary_key)
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self.assertTrue(cols['p1'].partition_key)
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self.assertTrue(cols['p2'].primary_key)
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self.assertTrue(cols['p2'].partition_key)
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obj = ModelWithPartitionKeys(p1='a', p2='b')
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self.assertEquals(obj.pk, ('a', 'b'))
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def test_del_attribute_is_assigned_properly(self):
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""" Tests that columns that can be deleted have the del attribute """
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class DelModel(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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key = columns.Integer(primary_key=True)
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data = columns.Integer(required=False)
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model = DelModel(key=4, data=5)
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del model.data
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with self.assertRaises(AttributeError):
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del model.key
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def test_does_not_exist_exceptions_are_not_shared_between_model(self):
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""" Tests that DoesNotExist exceptions are not the same exception between models """
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class Model1(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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class Model2(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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try:
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raise Model1.DoesNotExist
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except Model2.DoesNotExist:
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assert False, "Model1 exception should not be caught by Model2"
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except Model1.DoesNotExist:
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#expected
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pass
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def test_does_not_exist_inherits_from_superclass(self):
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""" Tests that a DoesNotExist exception can be caught by it's parent class DoesNotExist """
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class Model1(Model):
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id = columns.UUID(primary_key=True, default=lambda:uuid4())
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class Model2(Model1):
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pass
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try:
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raise Model2.DoesNotExist
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except Model1.DoesNotExist:
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#expected
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pass
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except Exception:
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assert False, "Model2 exception should not be caught by Model1"
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def test_abstract_model_keyspace_warning_is_skipped(self):
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with warnings.catch_warnings(record=True) as warn:
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class NoKeyspace(Model):
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__abstract__ = True
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key = columns.UUID(primary_key=True)
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self.assertEqual(len(warn), 0)
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class TestManualTableNaming(BaseCassEngTestCase):
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class RenamedTest(cqlengine.Model):
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__keyspace__ = 'whatever'
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__table_name__ = 'manual_name'
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id = cqlengine.UUID(primary_key=True)
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data = cqlengine.Text()
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def test_proper_table_naming(self):
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assert self.RenamedTest.column_family_name(include_keyspace=False) == 'manual_name'
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assert self.RenamedTest.column_family_name(include_keyspace=True) == 'whatever.manual_name'
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class AbstractModel(Model):
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__abstract__ = True
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class ConcreteModel(AbstractModel):
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pkey = columns.Integer(primary_key=True)
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data = columns.Integer()
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class AbstractModelWithCol(Model):
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__abstract__ = True
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pkey = columns.Integer(primary_key=True)
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class ConcreteModelWithCol(AbstractModelWithCol):
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data = columns.Integer()
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class AbstractModelWithFullCols(Model):
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__abstract__ = True
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pkey = columns.Integer(primary_key=True)
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data = columns.Integer()
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class TestAbstractModelClasses(BaseCassEngTestCase):
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def test_id_field_is_not_created(self):
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""" Tests that an id field is not automatically generated on abstract classes """
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assert not hasattr(AbstractModel, 'id')
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assert not hasattr(AbstractModelWithCol, 'id')
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def test_id_field_is_not_created_on_subclass(self):
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assert not hasattr(ConcreteModel, 'id')
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def test_abstract_attribute_is_not_inherited(self):
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""" Tests that __abstract__ attribute is not inherited """
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assert not ConcreteModel.__abstract__
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assert not ConcreteModelWithCol.__abstract__
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def test_attempting_to_save_abstract_model_fails(self):
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""" Attempting to save a model from an abstract model should fail """
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with self.assertRaises(CQLEngineException):
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AbstractModelWithFullCols.create(pkey=1, data=2)
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def test_attempting_to_create_abstract_table_fails(self):
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""" Attempting to create a table from an abstract model should fail """
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from cqlengine.management import sync_table
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with self.assertRaises(CQLEngineException):
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sync_table(AbstractModelWithFullCols)
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def test_attempting_query_on_abstract_model_fails(self):
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""" Tests attempting to execute query with an abstract model fails """
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with self.assertRaises(CQLEngineException):
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iter(AbstractModelWithFullCols.objects(pkey=5)).next()
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def test_abstract_columns_are_inherited(self):
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""" Tests that columns defined in the abstract class are inherited into the concrete class """
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assert hasattr(ConcreteModelWithCol, 'pkey')
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assert isinstance(ConcreteModelWithCol.pkey, ColumnQueryEvaluator)
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assert isinstance(ConcreteModelWithCol._columns['pkey'], columns.Column)
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def test_concrete_class_table_creation_cycle(self):
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""" Tests that models with inherited abstract classes can be created, and have io performed """
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from cqlengine.management import sync_table, drop_table
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sync_table(ConcreteModelWithCol)
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w1 = ConcreteModelWithCol.create(pkey=5, data=6)
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w2 = ConcreteModelWithCol.create(pkey=6, data=7)
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r1 = ConcreteModelWithCol.get(pkey=5)
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r2 = ConcreteModelWithCol.get(pkey=6)
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assert w1.pkey == r1.pkey
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assert w1.data == r1.data
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assert w2.pkey == r2.pkey
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assert w2.data == r2.data
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drop_table(ConcreteModelWithCol)
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class TestCustomQuerySet(BaseCassEngTestCase):
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""" Tests overriding the default queryset class """
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class TestException(Exception): pass
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def test_overriding_queryset(self):
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class QSet(ModelQuerySet):
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def create(iself, **kwargs):
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raise self.TestException
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class CQModel(Model):
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__queryset__ = QSet
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part = columns.UUID(primary_key=True)
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data = columns.Text()
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with self.assertRaises(self.TestException):
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CQModel.create(part=uuid4(), data='s')
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def test_overriding_dmlqueryset(self):
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class DMLQ(DMLQuery):
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def save(iself):
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raise self.TestException
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class CDQModel(Model):
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__dmlquery__ = DMLQ
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part = columns.UUID(primary_key=True)
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data = columns.Text()
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with self.assertRaises(self.TestException):
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CDQModel().save()
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class TestCachedLengthIsNotCarriedToSubclasses(BaseCassEngTestCase):
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def test_subclassing(self):
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length = len(ConcreteModelWithCol())
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class AlreadyLoadedTest(ConcreteModelWithCol):
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new_field = columns.Integer()
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self.assertGreater(len(AlreadyLoadedTest()), length)
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