Various tests cleanup: check_warnings/check_py3k_warnings, unittest.assert* and setUp/tearDown.
diff --git a/Lib/test/test_minidom.py b/Lib/test/test_minidom.py
index f160d09..1f0b229 100644
--- a/Lib/test/test_minidom.py
+++ b/Lib/test/test_minidom.py
@@ -950,7 +950,7 @@
node = doc.documentElement
node.childNodes[1].nodeValue = ""
node.normalize()
- self.confirm(node.childNodes[-1].nextSibling == None,
+ self.confirm(node.childNodes[-1].nextSibling is None,
"Final child's .nextSibling should be None")
def testSiblings(self):