added unit test making sure empty blindData doesn't get written to file

Author: davidsminor

test/IECore/BlindDataHolder.py

@@ -102,6 +102,9 @@ def testLoadSave(self):
 
 		b2 = Object.load( iface, "test" )
 		self.assertEqual( b1, b2 )
+		
+		# should have written a "blindData" entry into the indexed io hierarchy
+		self.failUnless( isinstance( iface.directory( ["test","data","BlindDataHolder", "data", "blindData"], IndexedIO.MissingBehaviour.NullIfMissing ), IndexedIO ) )
 
 		# second test: overriding with no blind data
 		b1 = BlindDataHolder()
@@ -124,6 +127,9 @@ def testLoadSave(self):
 		g2 = Object.load( iface, "test" )
 		self.assertEqual( g1, g2 )
 
+		# "blindData" entry should be excluded from the IndexedIO hierarchy
+		self.assertEqual( iface.directory( ["test","data","Group", "data", "blindData"], IndexedIO.MissingBehaviour.NullIfMissing ), None )
+		
 	def testHash( self ) :
 
 		b1 = BlindDataHolder()
@@ -135,9 +141,9 @@ def testHash( self ) :
 		self.assertNotEqual( b1.hash(), b2.hash() )
 
 	def tearDown(self):
-
-		if os.path.isfile("./test/BlindDataHolder.fio") :
-			os.remove("./test/BlindDataHolder.fio")
+		pass
+		#if os.path.isfile("./test/BlindDataHolder.fio") :
+		#	os.remove("./test/BlindDataHolder.fio")
 
 if __name__ == "__main__":
         unittest.main()