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			29 lines
		
	
	
		
			794 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			29 lines
		
	
	
		
			794 B
		
	
	
	
		
			Python
		
	
	
	
	
	
| from __future__ import with_statement
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| 
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| from django.test import TestCase
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| 
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| from models import Person
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| 
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| 
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| class AssertNumQueriesTests(TestCase):
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|     def test_simple(self):
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|         with self.assertNumQueries(0):
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|             pass
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| 
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|         with self.assertNumQueries(1):
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|             Person.objects.count()
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| 
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|         with self.assertNumQueries(2):
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|             Person.objects.count()
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|             Person.objects.count()
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| 
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|     def test_failure(self):
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|         with self.assertRaises(AssertionError) as exc_info:
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|             with self.assertNumQueries(2):
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|                 Person.objects.count()
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|         self.assertEqual(str(exc_info.exception), "1 != 2 : 1 queries executed, 2 expected")
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| 
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|         with self.assertRaises(TypeError):
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|             with self.assertNumQueries(4000):
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|                 raise TypeError
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