Fix graphFormatGuess test for when one of the expected endpoints are down

Author: ashleysommer

test/test_graph.py

@@ -4,6 +4,7 @@
 
 from tempfile import mkdtemp, mkstemp
 import shutil
+from urllib.error import URLError, HTTPError
 
 from rdflib import URIRef, Graph, plugin
 from rdflib.exceptions import ParserError
@@ -304,10 +305,19 @@ def testGuessFormatForParse(self):
         with self.assertRaises(PluginException):
             self.graph.parse(location="https://www.google.com")
 
-        self.graph.parse(location="http://www.w3.org/ns/adms.ttl")
-        self.graph.parse(location="http://www.w3.org/ns/adms.rdf")
-        # persistent Australian Government online RDF resource without a file-like ending
-        self.graph.parse(location="https://linked.data.gov.au/def/agrif?_format=text/turtle")
+        try:
+            self.graph.parse(location="http://www.w3.org/ns/adms.ttl")
+            self.graph.parse(location="http://www.w3.org/ns/adms.rdf")
+        except (URLError, HTTPError):
+            #this endpoint is currently not available, ignore this test.
+            pass
+
+        try:
+            # persistent Australian Government online RDF resource without a file-like ending
+            self.graph.parse(location="https://linked.data.gov.au/def/agrif?_format=text/turtle")
+        except (URLError, HTTPError):
+            # this endpoint is currently not available, ignore this test.
+            pass
 
 
 # dynamically create classes for each registered Store