Add xml tests

Original commit message from CVS:
Add xml tests

testsuite/Makefile.am

@@ -6,7 +6,8 @@ tests =  \
 	event.py \
         interface.py \
 	pad.py \
-        pipeline.py
+        pipeline.py \
+	test_xml.py
 
 check-local:
 	@PYTHONPATH=$(PYTHONPATH):$(top_builddir):$(top_builddir)/gst/.libs $(PYTHON) $(srcdir)/runtests.py

testsuite/test_xml.py

@@ -0,0 +1,26 @@
+from common import gst, unittest
+
+class PadTest(unittest.TestCase):
+        
+    def testQuery(self):
+        xml = gst.XML()
+        xml.parse_memory("""<?xml version="1.0"?>
+<gstreamer xmlns:gst="http://gstreamer.net/gst-core/1.0/">
+  <gst:element>
+    <gst:name>test-pipeline</gst:name>
+    <gst:type>pipeline</gst:type>
+    <gst:param>
+      <gst:name>name</gst:name>
+      <gst:value>test-pipeline</gst:value>
+    </gst:param>
+  </gst:element>
+</gstreamer>""")
+        elements = xml.get_topelements()
+        assert len(elements) == 1
+        element = elements[0]
+        assert isinstance(element, gst.Pipeline)
+        assert element.get_name() == 'test-pipeline'
+        
+if __name__ == "__main__":
+    unittest.main()
+