added some interface element schema checks

test/data/update_netconf_data.py

+import logging
 import os
 
 from jnpr.junos import Device
@@ -35,16 +36,28 @@ def _load_netconf(hostname, ssh_params):
     #
 
 
-SCHEMA = """<?xml version="1.0" encoding="UTF-8" ?>
+SCHEMA = """<?xml version="1.1" encoding="UTF-8" ?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 
   <xs:complexType name="generic-sequence">
     <xs:sequence>
-        <xs:any processContents="skip" minOccurs="0" maxOccurs="unbounded"/>
+        <xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
     <xs:anyAttribute processContents="skip" />
   </xs:complexType>
 
+  <!-- NOTE: 'unit' content isn't validated -->  
+  <xs:complexType name="juniper-interface">
+    <xs:sequence>
+        <xs:choice minOccurs="1" maxOccurs="unbounded">
+            <xs:element name="name" minOccurs="1" maxOccurs="1" type="xs:string" />
+            <xs:element name="description" minOccurs="0" maxOccurs="1" type="xs:string" />
+            <xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded" />
+        </xs:choice>
+    </xs:sequence>
+    <xs:attribute name="inactive" type="xs:string" />
+  </xs:complexType>
+
   <xs:element name="configuration">
     <xs:complexType>
       <xs:sequence>
@@ -61,7 +74,7 @@ SCHEMA = """<?xml version="1.0" encoding="UTF-8" ?>
               <xs:sequence>
                 <xs:choice minOccurs="1" maxOccurs="unbounded">
                     <xs:element name="apply-groups" minOccurs="0" type="xs:string" />
-                    <xs:element name="interface" minOccurs="1" type="generic-sequence" />
+                    <xs:element name="interface" minOccurs="1" maxOccurs="unbounded" type="juniper-interface" />
                 </xs:choice>
               </xs:sequence>
             </xs:complexType>
@@ -86,6 +99,8 @@ SCHEMA = """<?xml version="1.0" encoding="UTF-8" ?>
 """
 if __name__ == "__main__":
 
+    logging.basicConfig(level=logging.DEBUG)
+
     TEST_DATA_DIR = os.path.dirname(__file__)
     CONFIG_FILENAME = "config.json"
     SCHEMA_FILENAME = os.path.join(TEST_DATA_DIR, "juniper-netconf.xsd")
@@ -109,5 +124,12 @@ if __name__ == "__main__":
         schema = etree.XMLSchema(schema_doc)
         parser = etree.XMLParser(schema=schema)
 
-        print(filename)
-        etree.parse(filename, parser)
+        logging.debug("FILENAME: %s" % filename)
+        try:
+            etree.parse(filename, parser)
+        except etree.XMLSyntaxError as ex:
+            logging.debug(ex)
+            for e in parser.error_log:
+                logging.debug("%d.%d: %s" % (
+                    e.line, e.column, e.message))
+            exit(-1)