Python: Add sanitized edges for urlsplit test

Author: RasmusWL

python/ql/test/library-tests/taint/namedtuple/SanitizedEdges.expected

@@ -0,0 +1,7 @@
+| UrlsplitUrlparseTempSanitizer | [externally controlled string] | test.py:21 | Pi(urlsplit_res_0) [true] |
+| UrlsplitUrlparseTempSanitizer | [externally controlled string] | test.py:24 | Pi(urlsplit_res_3) [true] |
+| UrlsplitUrlparseTempSanitizer | [externally controlled string] | test.py:27 | Pi(urlsplit_res_6) [true] |
+| UrlsplitUrlparseTempSanitizer | [externally controlled string] | test.py:30 | Pi(urlsplit_res_9) [true] |
+| string equality sanitizer | externally controlled string | test.py:21 | Pi(urlsplit_res_0) [true] |
+| string equality sanitizer | externally controlled string | test.py:24 | Pi(urlsplit_res_3) [true] |
+| string equality sanitizer | externally controlled string | test.py:27 | Pi(urlsplit_res_6) [true] |

python/ql/test/library-tests/taint/namedtuple/SanitizedEdges.ql

@@ -0,0 +1,6 @@
+import python
+import Taint
+
+from Sanitizer s, TaintKind taint, PyEdgeRefinement test
+where s.sanitizingEdge(taint, test)
+select s, taint, test.getTest().getLocation().toString(), test.getRepresentation()