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	This commit touchs various parts of the code base and test framework. Any found usage of opening a cursor for the sake of initializing a connection has been replaced with 'ensure_connection()'.
		
			
				
	
	
		
			46 lines
		
	
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			46 lines
		
	
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from django.core.management.color import no_style
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from django.core.management.sql import custom_sql_for_model
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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 .models import Simple
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class InitialSQLTests(TestCase):
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    """
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    The format of the included SQL file for this test suite is important.
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    It must end with a trailing newline in order to test the fix for #2161.
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    """
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    def test_initial_sql(self):
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        """
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        As pointed out by #14661, test data loaded by custom SQL
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        can't be relied upon; as a result, the test framework flushes the
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        data contents before every test. This test validates that this has
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        occurred.
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        """
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        self.assertEqual(Simple.objects.count(), 0)
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    def test_custom_sql(self):
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        """
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        Simulate the custom SQL loading by migrate.
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        """
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        connection = connections[DEFAULT_DB_ALIAS]
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        custom_sql = custom_sql_for_model(Simple, no_style(), connection)
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        self.assertEqual(len(custom_sql), 9)
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        with connection.cursor() as cursor:
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            for sql in custom_sql:
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                cursor.execute(sql)
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        self.assertEqual(Simple.objects.count(), 9)
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        self.assertEqual(
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            Simple.objects.get(name__contains='placeholders').name,
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            '"100%" of % are not placeholders'
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        )
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    @override_settings(DEBUG=True)
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    def test_custom_sql_debug(self):
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        """
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        Same test, ensure that CursorDebugWrapper doesn't alter sql loading
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        (#3485).
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        """
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        self.test_custom_sql()
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