| import unittest |
|
|
| from django.core.management.color import no_style |
| from django.db import connection |
| from django.test import TestCase |
|
|
| from ..models import Person, Tag |
|
|
|
|
| @unittest.skipUnless(connection.vendor == "sqlite", "SQLite tests.") |
| class SQLiteOperationsTests(TestCase): |
| def test_sql_flush(self): |
| self.assertEqual( |
| connection.ops.sql_flush( |
| no_style(), |
| [Person._meta.db_table, Tag._meta.db_table], |
| ), |
| [ |
| 'DELETE FROM "backends_person";', |
| 'DELETE FROM "backends_tag";', |
| ], |
| ) |
|
|
| def test_sql_flush_allow_cascade(self): |
| statements = connection.ops.sql_flush( |
| no_style(), |
| [Person._meta.db_table, Tag._meta.db_table], |
| allow_cascade=True, |
| ) |
| self.assertEqual( |
| |
| sorted(statements), |
| [ |
| 'DELETE FROM "backends_person";', |
| 'DELETE FROM "backends_tag";', |
| 'DELETE FROM "backends_verylongmodelnamezzzzzzzzzzzzzzzzzzzzzz' |
| "zzzzzzzzzzzzzzzzzzzz_m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzz" |
| 'zzzzzzzzzzzzzzzzzzzzzzz";', |
| ], |
| ) |
|
|
| def test_sql_flush_sequences(self): |
| self.assertEqual( |
| connection.ops.sql_flush( |
| no_style(), |
| [Person._meta.db_table, Tag._meta.db_table], |
| reset_sequences=True, |
| ), |
| [ |
| 'DELETE FROM "backends_person";', |
| 'DELETE FROM "backends_tag";', |
| 'UPDATE "sqlite_sequence" SET "seq" = 0 WHERE "name" IN ' |
| "('backends_person', 'backends_tag');", |
| ], |
| ) |
|
|
| def test_sql_flush_sequences_allow_cascade(self): |
| statements = connection.ops.sql_flush( |
| no_style(), |
| [Person._meta.db_table, Tag._meta.db_table], |
| reset_sequences=True, |
| allow_cascade=True, |
| ) |
| self.assertEqual( |
| |
| sorted(statements[:-1]), |
| [ |
| 'DELETE FROM "backends_person";', |
| 'DELETE FROM "backends_tag";', |
| 'DELETE FROM "backends_verylongmodelnamezzzzzzzzzzzzzzzzzzzzzz' |
| "zzzzzzzzzzzzzzzzzzzz_m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzz" |
| 'zzzzzzzzzzzzzzzzzzzzzzz";', |
| ], |
| ) |
| self.assertIs( |
| statements[-1].startswith( |
| 'UPDATE "sqlite_sequence" SET "seq" = 0 WHERE "name" IN (' |
| ), |
| True, |
| ) |
| self.assertIn("'backends_person'", statements[-1]) |
| self.assertIn("'backends_tag'", statements[-1]) |
| self.assertIn( |
| "'backends_verylongmodelnamezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz" |
| "zzzz_m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz" |
| "zzz'", |
| statements[-1], |
| ) |
|
|
