Implement testGetElementsByTagNameNS.
diff --git a/Lib/test/test_minidom.py b/Lib/test/test_minidom.py
index 5ff1beb..bdef6f5 100644
--- a/Lib/test/test_minidom.py
+++ b/Lib/test/test_minidom.py
@@ -239,7 +239,14 @@
 
 def testGetAttributeNode(): pass
 
-def testGetElementsByTagNameNS(): pass
+def testGetElementsByTagNameNS():
+    d="""<foo xmlns:minidom="http://pyxml.sf.net/minidom">
+    <minidom:myelem/>
+    </foo>"""
+    dom = parseString(d)
+    elem = dom.getElementsByTagNameNS("http://pyxml.sf.net/minidom","myelem")
+    confirm(len(elem) == 1)
+    dom.unlink()
 
 def testGetEmptyNodeListFromElementsByTagNameNS(): pass