Adds a fuzz test

test/fuzz_rdflib.py

@@ -0,0 +1,29 @@
+#!/usr/bin/python3
+
+import atheris
+
+with atheris.instrument_imports():
+    from rdflib import Graph
+    from rdflib.plugins.parsers.notation3 import BadSyntax
+    from rdflib.exceptions import ParserError
+    import sys
+    from xml.sax import SAXParseException
+
+
+def TestOneInput(data):
+    # arbitrary byte 'data' created by atheris that mutates each time
+    # this allows you to manipulate the 'data' into strings, integers, lists of integers etc.
+    fdp = atheris.FuzzedDataProvider(data)
+
+    format_list = ["xml", "trix", "turtle", "n3", "nt"]
+    g = Graph()
+    try:
+        g.parse(format=fdp.PickValueInList(format_list),
+                data=fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(1, 100)))
+    # Data generated is not appropriate, so ignore BadSyntax, SAXParseException and ParserError
+    except (BadSyntax, SAXParseException, ParserError):
+        pass
+
+
+atheris.Setup(sys.argv, TestOneInput)
+atheris.Fuzz()