[Zope-CVS] CVS: Packages/pypes/pypes/tests - test_expression.py:1.9

[Casey Duncan]

Update of /cvs-repository/Packages/pypes/pypes/tests
In directory cvs.zope.org:/tmp/cvs-serv24622/tests

Modified Files:
	test_expression.py 
Log Message:
Make sure or/and operations on expressions copy embedded syntax tree nodes before combining them.


=== Packages/pypes/pypes/tests/test_expression.py 1.8 => 1.9 ===
--- Packages/pypes/pypes/tests/test_expression.py:1.8	Wed Apr 21 01:25:53 2004
+++ Packages/pypes/pypes/tests/test_expression.py	Thu Apr 29 23:05:02 2004
@@ -147,6 +147,15 @@
         self.assertRaises(PypesError, operator.or_,
             Expression('x > z', {'x':100}), Expression('y < x', {'x': 1}))
     
+    def testOrCopiesAST(self):
+        left, right = Expression('x > 1'), Expression('y < 2')
+        e = left | right
+        left = left.ast().getChildNodes()[0]
+        right = right.ast().getChildNodes()[0]
+        left2, right2 = e.ast().getChildNodes()[0].getChildNodes()
+        self.failIf(left is left2)
+        self.failIf(right is right2)
+    
     def testAnd(self):
         e = Expression('x > 1') & Expression('y < 2')
         self.assertEqual(e, Expression('x > 1 and y < 2'))
@@ -158,6 +167,15 @@
             Expression('x > z', {'x':100}), Expression('y < x'))
         self.assertRaises(PypesError, operator.and_, 
             Expression('x > z', {'x':100}), Expression('y < x', {'x': 1}))
+    
+    def testAndCopiesAST(self):
+        left, right = Expression('x > 1'), Expression('y < 2')
+        e = left & right
+        left = left.ast().getChildNodes()[0]
+        right = right.ast().getChildNodes()[0]
+        left2, right2 = e.ast().getChildNodes()[0].getChildNodes()
+        self.failIf(left is left2)
+        self.failIf(right is right2)
 
 
 class WhiteTestExpression(unittest.TestCase):