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