Adding stream tests for XEP-0030.

Fixed some errors when responding to disco requests.

tests/test_stream_xep_0030.py

@@ -0,0 +1,83 @@
+import time
+from sleekxmpp.test import *
+
+
+class TestStreamDisco(SleekTest):
+    """
+    Test using the XEP-0030 plugin.
+    """
+
+    def tearDown(self):
+        self.stream_close()
+
+    def testInfoEmptyNode(self):
+        """
+        Info queries to a node MUST have at least one identity
+        and feature, namely http://jabber.org/protocol/disco#info.
+
+        Since the XEP-0030 plugin is loaded, a disco response should
+        be generated and not an error result.
+        """
+        self.stream_start(plugins=['xep_0030'])
+
+        self.recv("""
+          <iq type="get" id="test">
+            <query xmlns="http://jabber.org/protocol/disco#info" />
+          </iq>
+        """)
+
+        self.send("""
+          <iq type="result" id="test">
+            <query xmlns="http://jabber.org/protocol/disco#info">
+              <identity category="client" type="bot" />
+              <feature var="http://jabber.org/protocol/disco#info" />
+            </query>
+          </iq>""")
+
+    def testInfoEmptyNodeComponent(self):
+        """
+        Test requesting an empty node using a Component.
+        """
+        self.stream_start(mode='component',
+                          plugins=['xep_0030'])
+
+        self.recv("""
+          <iq type="get" id="test">
+            <query xmlns="http://jabber.org/protocol/disco#info" />
+          </iq>
+        """)
+
+        self.send("""
+          <iq type="result" id="test">
+            <query xmlns="http://jabber.org/protocol/disco#info">
+              <identity category="component" type="generic" />
+              <feature var="http://jabber.org/protocol/disco#info" />
+            </query>
+          </iq>""")
+
+    def testInfoIncludeNode(self):
+        """
+        Results for info queries directed to a particular node MUST
+        include the node in the query response.
+        """
+        self.stream_start(plugins=['xep_0030'])
+
+        self.xmpp['xep_0030'].add_node('testing')
+
+        self.recv("""
+          <iq type="get" id="test">
+            <query xmlns="http://jabber.org/protocol/disco#info"
+                   node="testing" />
+          </iq>
+        """)
+
+        self.send("""
+          <iq type="result" id="test">
+            <query xmlns="http://jabber.org/protocol/disco#info"
+                   node="testing">
+            </query>
+          </iq>""", 
+          method='mask')
+
+
+suite = unittest.TestLoader().loadTestsFromTestCase(TestStreamDisco)