# -*- coding: utf-8 -*- from __future__ import unicode_literals, print_function import unittest from infi.clickhouse_orm.database import Database from infi.clickhouse_orm.query import Q from .base_test_with_data import * import logging from datetime import date, datetime try: Enum # exists in Python 3.4+ except NameError: from enum import Enum # use the enum34 library instead class QuerySetTestCase(TestCaseWithData): def setUp(self): super(QuerySetTestCase, self).setUp() self.database.insert(self._sample_data()) def _test_qs(self, qs, expected_count): logging.info(qs.as_sql()) count = 0 for instance in qs: count += 1 logging.info('\t[%d]\t%s' % (count, instance.to_dict())) self.assertEqual(count, expected_count) self.assertEqual(qs.count(), expected_count) def test_prewhere(self): # We can't distinguish prewhere and where results, it affects performance only. # So let's control prewhere acts like where does qs = Person.objects_in(self.database) self.assertTrue(qs.filter(first_name='Connor', prewhere=True)) self.assertFalse(qs.filter(first_name='Willy', prewhere=True)) def test_no_filtering(self): qs = Person.objects_in(self.database) self._test_qs(qs, len(data)) def test_truthiness(self): qs = Person.objects_in(self.database) self.assertTrue(qs.filter(first_name='Connor')) self.assertFalse(qs.filter(first_name='Willy')) def test_filter_null_value(self): qs = Person.objects_in(self.database) self._test_qs(qs.filter(passport=None), 98) self._test_qs(qs.exclude(passport=None), 2) self._test_qs(qs.filter(passport__ne=None), 2) self._test_qs(qs.exclude(passport__ne=None), 98) def test_filter_string_field(self): qs = Person.objects_in(self.database) self._test_qs(qs.filter(first_name='Ciaran'), 2) self._test_qs(qs.filter(first_name='ciaran'), 0) # case sensitive self._test_qs(qs.filter(first_name__iexact='ciaran'), 2) # case insensitive self._test_qs(qs.filter(first_name__gt='Whilemina'), 4) self._test_qs(qs.filter(first_name__gte='Whilemina'), 5) self._test_qs(qs.filter(first_name__lt='Adam'), 1) self._test_qs(qs.filter(first_name__lte='Adam'), 2) self._test_qs(qs.filter(first_name__in=('Connor', 'Courtney')), 3) # in tuple self._test_qs(qs.filter(first_name__in=['Connor', 'Courtney']), 3) # in list self._test_qs(qs.filter(first_name__in="'Connor', 'Courtney'"), 3) # in string self._test_qs(qs.filter(first_name__not_in="'Connor', 'Courtney'"), 97) self._test_qs(qs.filter(first_name__contains='sh'), 3) # case sensitive self._test_qs(qs.filter(first_name__icontains='sh'), 6) # case insensitive self._test_qs(qs.filter(first_name__startswith='le'), 0) # case sensitive self._test_qs(qs.filter(first_name__istartswith='Le'), 2) # case insensitive self._test_qs(qs.filter(first_name__istartswith=''), 100) # empty prefix self._test_qs(qs.filter(first_name__endswith='IA'), 0) # case sensitive self._test_qs(qs.filter(first_name__iendswith='ia'), 3) # case insensitive self._test_qs(qs.filter(first_name__iendswith=''), 100) # empty suffix def test_filter_with_q_objects(self): qs = Person.objects_in(self.database) self._test_qs(qs.filter(Q(first_name='Ciaran')), 2) self._test_qs(qs.filter(Q(first_name='Ciaran') | Q(first_name='Chelsea')), 3) self._test_qs(qs.filter(Q(first_name__in=['Warren', 'Whilemina', 'Whitney']) & Q(height__gte=1.7)), 3) self._test_qs(qs.filter((Q(first_name__in=['Warren', 'Whilemina', 'Whitney']) & Q(height__gte=1.7) | (Q(first_name__in=['Victoria', 'Victor', 'Venus']) & Q(height__lt=1.7)))), 4) self._test_qs(qs.filter(Q(first_name='Elton') & ~Q(last_name='Smith')), 1) # Check operator precendence self._test_qs(qs.filter(first_name='Cassady').filter(Q(last_name='Knapp') | Q(last_name='Rogers') | Q(last_name='Gregory')), 2) self._test_qs(qs.filter(Q(first_name='Cassady') & Q(last_name='Knapp') | Q(first_name='Beatrice') & Q(last_name='Gregory')), 2) self._test_qs(qs.filter(Q(first_name='Courtney') | Q(first_name='Cassady') & Q(last_name='Knapp')), 3) def test_filter_unicode_string(self): self.database.insert([ Person(first_name=u'דונלד', last_name=u'דאק') ]) qs = Person.objects_in(self.database) self._test_qs(qs.filter(first_name=u'דונלד'), 1) def test_filter_float_field(self): qs = Person.objects_in(self.database) self._test_qs(qs.filter(height__gt=2), 0) self._test_qs(qs.filter(height__lt=1.61), 4) self._test_qs(qs.filter(height__lt='1.61'), 4) self._test_qs(qs.exclude(height__lt='1.61'), 96) self._test_qs(qs.filter(height__gt=0), 100) self._test_qs(qs.exclude(height__gt=0), 0) def test_filter_date_field(self): qs = Person.objects_in(self.database) self._test_qs(qs.filter(birthday='1970-12-02'), 1) self._test_qs(qs.filter(birthday__eq='1970-12-02'), 1) self._test_qs(qs.filter(birthday__ne='1970-12-02'), 99) self._test_qs(qs.filter(birthday=date(1970, 12, 2)), 1) self._test_qs(qs.filter(birthday__lte=date(1970, 12, 2)), 3) def test_mutiple_filter(self): qs = Person.objects_in(self.database) # Single filter call with multiple conditions is ANDed self._test_qs(qs.filter(first_name='Ciaran', last_name='Carver'), 1) # Separate filter calls are also ANDed self._test_qs(qs.filter(first_name='Ciaran').filter(last_name='Carver'), 1) self._test_qs(qs.filter(birthday='1970-12-02').filter(birthday='1986-01-07'), 0) def test_multiple_exclude(self): qs = Person.objects_in(self.database) # Single exclude call with multiple conditions is ANDed self._test_qs(qs.exclude(first_name='Ciaran', last_name='Carver'), 99) # Separate exclude calls are ORed self._test_qs(qs.exclude(first_name='Ciaran').exclude(last_name='Carver'), 98) self._test_qs(qs.exclude(birthday='1970-12-02').exclude(birthday='1986-01-07'), 98) def test_only(self): qs = Person.objects_in(self.database).only('first_name', 'last_name') for person in qs: self.assertTrue(person.first_name) self.assertTrue(person.last_name) self.assertFalse(person.height) self.assertEqual(person.birthday, date(1970, 1, 1)) def test_order_by(self): qs = Person.objects_in(self.database) self.assertFalse('ORDER BY' in qs.as_sql()) self.assertFalse(qs.order_by_as_sql()) person = list(qs.order_by('first_name', 'last_name'))[0] self.assertEqual(person.first_name, 'Abdul') person = list(qs.order_by('-first_name', '-last_name'))[0] self.assertEqual(person.first_name, 'Yolanda') person = list(qs.order_by('height'))[0] self.assertEqual(person.height, 1.59) person = list(qs.order_by('-height'))[0] self.assertEqual(person.height, 1.8) def test_in_subquery(self): qs = Person.objects_in(self.database) self._test_qs(qs.filter(height__in='SELECT max(height) FROM $table'), 2) self._test_qs(qs.filter(first_name__in=qs.only('last_name')), 2) self._test_qs(qs.filter(first_name__not_in=qs.only('last_name')), 98) def _insert_sample_model(self): self.database.create_table(SampleModel) now = datetime.now() self.database.insert([ SampleModel(timestamp=now, num=1, color=Color.red), SampleModel(timestamp=now, num=2, color=Color.red), SampleModel(timestamp=now, num=3, color=Color.blue), SampleModel(timestamp=now, num=4, color=Color.white), ]) def _insert_sample_collapsing_model(self): self.database.create_table(SampleCollapsingModel) now = datetime.now() self.database.insert([ SampleCollapsingModel(timestamp=now, num=1, color=Color.red), SampleCollapsingModel(timestamp=now, num=2, color=Color.red), SampleCollapsingModel(timestamp=now, num=2, color=Color.red, sign=-1), SampleCollapsingModel(timestamp=now, num=2, color=Color.green), SampleCollapsingModel(timestamp=now, num=3, color=Color.white), SampleCollapsingModel(timestamp=now, num=4, color=Color.white, sign=1), SampleCollapsingModel(timestamp=now, num=4, color=Color.white, sign=-1), SampleCollapsingModel(timestamp=now, num=4, color=Color.blue, sign=1), ]) def test_filter_enum_field(self): self._insert_sample_model() qs = SampleModel.objects_in(self.database) self._test_qs(qs.filter(color=Color.red), 2) self._test_qs(qs.exclude(color=Color.white), 3) # Different ways to specify blue self._test_qs(qs.filter(color__gt=Color.blue), 1) self._test_qs(qs.filter(color__gt='blue'), 1) self._test_qs(qs.filter(color__gt=2), 1) def test_filter_int_field(self): self._insert_sample_model() qs = SampleModel.objects_in(self.database) self._test_qs(qs.filter(num=1), 1) self._test_qs(qs.filter(num__eq=1), 1) self._test_qs(qs.filter(num__ne=1), 3) self._test_qs(qs.filter(num__gt=1), 3) self._test_qs(qs.filter(num__gte=1), 4) self._test_qs(qs.filter(num__in=(1, 2, 3)), 3) self._test_qs(qs.filter(num__in=range(1, 4)), 3) def test_slicing(self): db = Database('system') numbers = list(range(100)) qs = Numbers.objects_in(db) self.assertEqual(qs[0].number, numbers[0]) self.assertEqual(qs[5].number, numbers[5]) self.assertEqual([row.number for row in qs[:1]], numbers[:1]) self.assertEqual([row.number for row in qs[:10]], numbers[:10]) self.assertEqual([row.number for row in qs[3:10]], numbers[3:10]) self.assertEqual([row.number for row in qs[9:10]], numbers[9:10]) self.assertEqual([row.number for row in qs[10:10]], numbers[10:10]) def test_invalid_slicing(self): db = Database('system') qs = Numbers.objects_in(db) with self.assertRaises(AssertionError): qs[3:10:2] with self.assertRaises(AssertionError): qs[-5] with self.assertRaises(AssertionError): qs[:-5] with self.assertRaises(AssertionError): qs[50:1] def test_pagination(self): qs = Person.objects_in(self.database).order_by('first_name', 'last_name') # Try different page sizes for page_size in (1, 2, 7, 10, 30, 100, 150): # Iterate over pages and collect all intances page_num = 1 instances = set() while True: page = qs.paginate(page_num, page_size) self.assertEqual(page.number_of_objects, len(data)) self.assertGreater(page.pages_total, 0) [instances.add(obj.to_tsv()) for obj in page.objects] if page.pages_total == page_num: break page_num += 1 # Verify that all instances were returned self.assertEqual(len(instances), len(data)) def test_pagination_last_page(self): qs = Person.objects_in(self.database).order_by('first_name', 'last_name') # Try different page sizes for page_size in (1, 2, 7, 10, 30, 100, 150): # Ask for the last page in two different ways and verify equality page_a = qs.paginate(-1, page_size) page_b = qs.paginate(page_a.pages_total, page_size) self.assertEqual(page_a[1:], page_b[1:]) self.assertEqual([obj.to_tsv() for obj in page_a.objects], [obj.to_tsv() for obj in page_b.objects]) def test_pagination_invalid_page(self): qs = Person.objects_in(self.database).order_by('first_name', 'last_name') for page_num in (0, -2, -100): with self.assertRaises(ValueError): qs.paginate(page_num, 100) def test_pagination_with_conditions(self): qs = Person.objects_in(self.database).order_by('first_name', 'last_name').filter(first_name__lt='Ava') page = qs.paginate(1, 100) self.assertEqual(page.number_of_objects, 10) def test_distinct(self): qs = Person.objects_in(self.database).distinct() self._test_qs(qs, 100) self._test_qs(qs.only('first_name'), 94) def test_materialized_field(self): self._insert_sample_model() qs = SampleModel.objects_in(self.database) for obj in qs: self.assertTrue(obj.materialized_date != DateField.min_value) def test_alias_field(self): self._insert_sample_model() qs = SampleModel.objects_in(self.database) for obj in qs: self.assertTrue(obj.num_squared == obj.num ** 2) def test_count_of_slice(self): qs = Person.objects_in(self.database) self._test_qs(qs[:70], 70) self._test_qs(qs[70:80], 10) self._test_qs(qs[80:], 20) def test_final(self): # Final can be used with CollapsingMergeTree engine only with self.assertRaises(TypeError): Person.objects_in(self.database).final() self._insert_sample_collapsing_model() res = list(SampleCollapsingModel.objects_in(self.database).final().order_by('num')) self.assertEqual(4, len(res)) for item, exp_color in zip(res, (Color.red, Color.green, Color.white, Color.blue)): self.assertEqual(exp_color, item.color) class AggregateTestCase(TestCaseWithData): def setUp(self): super(AggregateTestCase, self).setUp() self.database.insert(self._sample_data()) def test_aggregate_no_grouping(self): qs = Person.objects_in(self.database).aggregate(average_height='avg(height)', count='count()') print(qs.as_sql()) self.assertEqual(qs.count(), 1) for row in qs: self.assertAlmostEqual(row.average_height, 1.6923, places=4) self.assertEqual(row.count, 100) def test_aggregate_with_filter(self): # When filter comes before aggregate qs = Person.objects_in(self.database).filter(first_name='Warren').aggregate(average_height='avg(height)', count='count()') print(qs.as_sql()) self.assertEqual(qs.count(), 1) for row in qs: self.assertAlmostEqual(row.average_height, 1.675, places=4) self.assertEqual(row.count, 2) # When filter comes after aggregate qs = Person.objects_in(self.database).aggregate(average_height='avg(height)', count='count()').filter(first_name='Warren') print(qs.as_sql()) self.assertEqual(qs.count(), 1) for row in qs: self.assertAlmostEqual(row.average_height, 1.675, places=4) self.assertEqual(row.count, 2) def test_aggregate_with_implicit_grouping(self): qs = Person.objects_in(self.database).aggregate('first_name', average_height='avg(height)', count='count()') print(qs.as_sql()) self.assertEqual(qs.count(), 94) total = 0 for row in qs: self.assertTrue(1.5 < row.average_height < 2) self.assertTrue(0 < row.count < 3) total += row.count self.assertEqual(total, 100) def test_aggregate_with_explicit_grouping(self): qs = Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('weekday') print(qs.as_sql()) self.assertEqual(qs.count(), 7) total = 0 for row in qs: total += row.count self.assertEqual(total, 100) def test_aggregate_with_order_by(self): qs = Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('weekday') days = [row.weekday for row in qs.order_by('weekday')] self.assertEqual(days, list(range(1, 8))) def test_aggregate_with_indexing(self): qs = Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('weekday') total = 0 for i in range(7): total += qs[i].count self.assertEqual(total, 100) def test_aggregate_with_slicing(self): qs = Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('weekday') total = sum(row.count for row in qs[:3]) + sum(row.count for row in qs[3:]) self.assertEqual(total, 100) def test_aggregate_with_pagination(self): qs = Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('weekday') total = 0 page_num = 1 while True: page = qs.paginate(page_num, page_size=3) self.assertEqual(page.number_of_objects, 7) total += sum(row.count for row in page.objects) if page.pages_total == page_num: break page_num += 1 self.assertEqual(total, 100) def test_aggregate_with_wrong_grouping(self): with self.assertRaises(AssertionError): Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('first_name') def test_aggregate_with_no_calculated_fields(self): with self.assertRaises(AssertionError): Person.objects_in(self.database).aggregate() def test_aggregate_with_only(self): # Cannot put only() after aggregate() with self.assertRaises(NotImplementedError): Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').only('weekday') # When only() comes before aggregate(), it gets overridden qs = Person.objects_in(self.database).only('last_name').aggregate(average_height='avg(height)', count='count()') self.assertTrue('last_name' not in qs.as_sql()) def test_aggregate_on_aggregate(self): with self.assertRaises(NotImplementedError): Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').aggregate(s='sum(height)') def test_filter_on_calculated_field(self): # This is currently not supported, so we expect it to fail with self.assertRaises(AttributeError): qs = Person.objects_in(self.database).aggregate(weekday='toDayOfWeek(birthday)', count='count()').group_by('weekday') qs = qs.filter(weekday=1) self.assertEqual(qs.count(), 1) def test_aggregate_with_distinct(self): # In this case distinct has no effect qs = Person.objects_in(self.database).aggregate(average_height='avg(height)').distinct() print(qs.as_sql()) self.assertEqual(qs.count(), 1) def test_aggregate_with_totals(self): qs = Person.objects_in(self.database).aggregate('first_name', count='count()').\ with_totals().order_by('-count')[:5] print(qs.as_sql()) result = list(qs) self.assertEqual(len(result), 6) for row in result[:-1]: self.assertEqual(2, row.count) self.assertEqual(100, result[-1].count) def test_double_underscore_field(self): class Mdl(Model): the__number = Int32Field() the__next__number = Int32Field() engine = Memory() qs = Mdl.objects_in(self.database).filter(the__number=1) self.assertEqual(qs.conditions_as_sql(), 'the__number = 1') qs = Mdl.objects_in(self.database).filter(the__number__gt=1) self.assertEqual(qs.conditions_as_sql(), 'the__number > 1') qs = Mdl.objects_in(self.database).filter(the__next__number=1) self.assertEqual(qs.conditions_as_sql(), 'the__next__number = 1') qs = Mdl.objects_in(self.database).filter(the__next__number__gt=1) self.assertEqual(qs.conditions_as_sql(), 'the__next__number > 1') Color = Enum('Color', u'red blue green yellow brown white black') class SampleModel(Model): timestamp = DateTimeField() materialized_date = DateField(materialized='toDate(timestamp)') num = Int32Field() color = Enum8Field(Color) num_squared = Int32Field(alias='num*num') engine = MergeTree('materialized_date', ('materialized_date',)) class SampleCollapsingModel(SampleModel): sign = Int8Field(default=1) engine = CollapsingMergeTree('materialized_date', ('num',), 'sign') class Numbers(Model): number = UInt64Field()