115 lines
5.0 KiB
Python
115 lines
5.0 KiB
Python
from __future__ import unicode_literals
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import re
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import unittest
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import warnings
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from django.apps import apps
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from django.core.management.color import no_style
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from django.core.management.sql import (sql_create, sql_delete, sql_indexes,
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sql_destroy_indexes, sql_all)
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from django.db import connections, DEFAULT_DB_ALIAS
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from django.test import TestCase, override_settings
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from django.utils import six
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from django.utils.deprecation import RemovedInDjango20Warning
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# See also initial_sql_regress for 'custom_sql_for_model' tests
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class SQLCommandsTestCase(TestCase):
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"""Tests for several functions in django/core/management/sql.py"""
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def count_ddl(self, output, cmd):
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return len([o for o in output if o.startswith(cmd)])
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def test_sql_create(self):
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app_config = apps.get_app_config('commands_sql')
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output = sql_create(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
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tables = set()
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create_table_re = re.compile(r'^create table .(?P<table>[\w_]+).*', re.IGNORECASE)
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reference_re = re.compile(r'.* references .(?P<table>[\w_]+).*', re.IGNORECASE)
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for statement in output:
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create_table = create_table_re.match(statement)
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if create_table:
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# Lower since Oracle's table names are upper cased.
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tables.add(create_table.group('table').lower())
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continue
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reference = reference_re.match(statement)
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if reference:
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# Lower since Oracle's table names are upper cased.
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table = reference.group('table').lower()
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self.assertIn(
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table, tables, "The table %s is referenced before its creation." % table
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)
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self.assertEqual(tables, {
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'commands_sql_comment', 'commands_sql_book', 'commands_sql_book_comments'
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})
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@unittest.skipUnless('PositiveIntegerField' in connections[DEFAULT_DB_ALIAS].creation.data_type_check_constraints, 'Backend does not have checks.')
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def test_sql_create_check(self):
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"""Regression test for #23416 -- Check that db_params['check'] is respected."""
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app_config = apps.get_app_config('commands_sql')
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output = sql_create(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
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success = False
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for statement in output:
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if 'CHECK' in statement:
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success = True
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if not success:
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self.fail("'CHECK' not found in output %s" % output)
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def test_sql_delete(self):
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app_config = apps.get_app_config('commands_sql')
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output = sql_delete(app_config, no_style(), connections[DEFAULT_DB_ALIAS], close_connection=False)
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drop_tables = [o for o in output if o.startswith('DROP TABLE')]
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self.assertEqual(len(drop_tables), 3)
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# Lower so that Oracle's upper case tbl names wont break
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sql = drop_tables[-1].lower()
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six.assertRegex(self, sql, r'^drop table .commands_sql_comment.*')
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def test_sql_indexes(self):
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app_config = apps.get_app_config('commands_sql')
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", category=RemovedInDjango20Warning)
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output = sql_indexes(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
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# Number of indexes is backend-dependent
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self.assertTrue(1 <= self.count_ddl(output, 'CREATE INDEX') <= 4)
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def test_sql_destroy_indexes(self):
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app_config = apps.get_app_config('commands_sql')
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output = sql_destroy_indexes(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
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# Number of indexes is backend-dependent
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self.assertTrue(1 <= self.count_ddl(output, 'DROP INDEX') <= 4)
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def test_sql_all(self):
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app_config = apps.get_app_config('commands_sql')
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", category=RemovedInDjango20Warning)
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output = sql_all(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
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self.assertEqual(self.count_ddl(output, 'CREATE TABLE'), 3)
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# Number of indexes is backend-dependent
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self.assertTrue(1 <= self.count_ddl(output, 'CREATE INDEX') <= 4)
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class TestRouter(object):
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def allow_migrate(self, db, model):
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return False
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@override_settings(DATABASE_ROUTERS=[TestRouter()])
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class SQLCommandsRouterTestCase(TestCase):
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def test_router_honored(self):
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app_config = apps.get_app_config('commands_sql')
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for sql_command in (sql_all, sql_create, sql_delete, sql_indexes, sql_destroy_indexes):
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if sql_command is sql_delete:
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output = sql_command(app_config, no_style(), connections[DEFAULT_DB_ALIAS], close_connection=False)
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# "App creates no tables in the database. Nothing to do."
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expected_output = 1
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else:
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output = sql_command(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
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expected_output = 0
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self.assertEqual(len(output), expected_output,
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"%s command is not honoring routers" % sql_command.__name__)
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