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from __future__ import unicode_literals
from django.core.management.color import no_style
from django.core.management.sql import (sql_create, sql_delete, sql_indexes,
sql_destroy_indexes, sql_all)
from django.db import connections, DEFAULT_DB_ALIAS, models
from django.test import TestCase
from django.utils import six
# See also initial_sql_regress for 'custom_sql_for_model' tests
class SQLCommandsTestCase(TestCase):
"""Tests for several functions in django/core/management/sql.py"""
def count_ddl(self, output, cmd):
return len([o for o in output if o.startswith(cmd)])
def test_sql_create(self):
app = models.get_app('commands_sql')
output = sql_create(app, no_style(), connections[DEFAULT_DB_ALIAS])
create_tables = [o for o in output if o.startswith('CREATE TABLE')]
self.assertEqual(len(create_tables), 3)
# Lower so that Oracle's upper case tbl names wont break
sql = create_tables[-1].lower()
six.assertRegex(self, sql, r'^create table .commands_sql_book.*')
def test_sql_delete(self):
app = models.get_app('commands_sql')
output = sql_delete(app, no_style(), connections[DEFAULT_DB_ALIAS])
drop_tables = [o for o in output if o.startswith('DROP TABLE')]
self.assertEqual(len(drop_tables), 3)
# Lower so that Oracle's upper case tbl names wont break
sql = drop_tables[-1].lower()
six.assertRegex(self, sql, r'^drop table .commands_sql_comment.*')
def test_sql_indexes(self):
app = models.get_app('commands_sql')
output = sql_indexes(app, no_style(), connections[DEFAULT_DB_ALIAS])
# PostgreSQL creates one additional index for CharField
self.assertIn(self.count_ddl(output, 'CREATE INDEX'), [3, 4])
def test_sql_destroy_indexes(self):
app = models.get_app('commands_sql')
output = sql_destroy_indexes(app, no_style(), connections[DEFAULT_DB_ALIAS])
# PostgreSQL creates one additional index for CharField
self.assertIn(self.count_ddl(output, 'DROP INDEX'), [3, 4])
def test_sql_all(self):
app = models.get_app('commands_sql')
output = sql_all(app, no_style(), connections[DEFAULT_DB_ALIAS])
self.assertEqual(self.count_ddl(output, 'CREATE TABLE'), 3)
# PostgreSQL creates one additional index for CharField
self.assertIn(self.count_ddl(output, 'CREATE INDEX'), [3, 4])
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