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							20 lines
						
					
					
						
							450 B
						
					
					
				
			
		
		
	
	
							20 lines
						
					
					
						
							450 B
						
					
					
				import greenlet
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import unittest
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class Test(unittest.TestCase):
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    def test_stack_saved(self):
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        main = greenlet.getcurrent()
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        self.assertEqual(main._stack_saved, 0)
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        def func():
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            main.switch(main._stack_saved)
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        g = greenlet.greenlet(func)
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        x = g.switch()
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        assert x > 0, x
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        assert g._stack_saved > 0, g._stack_saved
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        g.switch()
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        assert g._stack_saved == 0, g._stack_saved
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