some roundftripling tests; better default graph IRI ('""')

5 files changed, 17 insertions, 7 deletions

diff --git a/rdflib/plugins/parsers/hext.py b/rdflib/plugins/parsers/hext.py
index b83ff721..9f34ac83 100644
--- a/rdflib/plugins/parsers/hext.py
+++ b/rdflib/plugins/parsers/hext.py
@@ -68,6 +68,7 @@ class HextuplesParser(Parser):
         cg = ConjunctiveGraph(store=graph.store, identifier=graph.identifier)
         cg.default_context = graph
 
+        # handle different source types - only file and string (data) for now
         if hasattr(source, "file"):
             with open(source.file.name) as fp:
                 for l in fp:
diff --git a/rdflib/plugins/serializers/hext.py b/rdflib/plugins/serializers/hext.py
index 820a49e8..3dfabb1b 100644
--- a/rdflib/plugins/serializers/hext.py
+++ b/rdflib/plugins/serializers/hext.py
@@ -60,7 +60,7 @@ def _hex_line(triple, context):
         _literal(triple[2]) if type(triple[2]) == Literal else _iri_or_bn(triple[2]),
         (f'"{triple[2].datatype}"' if triple[2].datatype is not None else '"http://www.w3.org/2001/XMLSchema#string"') if type(triple[2]) == Literal else '""',
         (f'"{triple[2].language}"' if triple[2].language is not None else '""') if type(triple[2]) == Literal else '""',
-        _iri_or_bn(context)
+        _iri_or_bn(context) if not str(context).startswith(("_", "file://")) else '""'
     )
 
 
diff --git a/test/test_parser_hext.py b/test/test_parser_hext.py
index 0f9a2f48..ec211475 100644
--- a/test/test_parser_hext.py
+++ b/test/test_parser_hext.py
@@ -10,7 +10,7 @@ def test_small_string():
         ["http://example.com/s01", "http://example.com/label", "This is a Label", "http://www.w3.org/2001/XMLSchema#string", "en", ""]
         ["http://example.com/s01", "http://example.com/comment", "This is a comment", "http://www.w3.org/2001/XMLSchema#string", "", ""]
         ["http://example.com/s01", "http://example.com/creationDate", "2021-12-01", "http://www.w3.org/2001/XMLSchema#date", "", ""]
-        ["http://example.com/s01", "http://example.com/creationTime", "2021-12-01T12:13", "http://www.w3.org/2001/XMLSchema#dateTime", "", ""]
+        ["http://example.com/s01", "http://example.com/creationTime", "2021-12-01T12:13:00", "http://www.w3.org/2001/XMLSchema#dateTime", "", ""]
         ["http://example.com/s01", "http://example.com/age", 42, "http://www.w3.org/2001/XMLSchema#integer", "", ""]
         ["http://example.com/s01", "http://example.com/trueFalse", false, "http://www.w3.org/2001/XMLSchema#boolean", "", ""]
         ["http://example.com/s01", "http://example.com/op1", "http://example.com/o1", "", "", ""]
@@ -23,7 +23,6 @@ def test_small_string():
 
 def test_small_file():
     d = Dataset().parse(Path(__file__).parent / "test_parser_hext_01.ndjson", format="hext")
-    print(d.serialize())
     assert len(d) == 10
 
 
diff --git a/test/test_parser_hext_01.ndjson b/test/test_parser_hext_01.ndjson
index c0a7c6ee..5d8f67c8 100644
--- a/test/test_parser_hext_01.ndjson
+++ b/test/test_parser_hext_01.ndjson
@@ -2,7 +2,7 @@
 ["http://example.com/s01", "http://example.com/label", "This is a Label", "http://www.w3.org/2001/XMLSchema#string", "en", ""]
 ["http://example.com/s01", "http://example.com/comment", "This is a comment", "http://www.w3.org/2001/XMLSchema#string", "", ""]
 ["http://example.com/s01", "http://example.com/creationDate", "2021-12-01", "http://www.w3.org/2001/XMLSchema#date", "", ""]
-["http://example.com/s01", "http://example.com/creationTime", "2021-12-01T12:13", "http://www.w3.org/2001/XMLSchema#dateTime", "", ""]
+["http://example.com/s01", "http://example.com/creationTime", "2021-12-01T12:13:00", "http://www.w3.org/2001/XMLSchema#dateTime", "", ""]
 ["http://example.com/s01", "http://example.com/age", 42, "http://www.w3.org/2001/XMLSchema#integer", "", ""]
 ["http://example.com/s01", "http://example.com/trueFalse", false, "http://www.w3.org/2001/XMLSchema#boolean", "", ""]
 ["http://example.com/s01", "http://example.com/op1", "http://example.com/o1", "", "", ""]
diff --git a/test/test_serialize_hext.py b/test/test_serialize_hext.py
index dc5c8d1c..2f1072e1 100644
--- a/test/test_serialize_hext.py
+++ b/test/test_serialize_hext.py
@@ -139,6 +139,16 @@ def test_hext_json_representation():
         assert isinstance(j, list)
 
 
+def test_roundtrip():
+    d = Dataset().parse(Path(__file__).parent / "test_parser_hext_01.ndjson", format="hext")
+    with open(str(Path(__file__).parent / "test_parser_hext_01.ndjson")) as i:
+        ordered_input = "".join(sorted(i.readlines())).strip()
+
+    ordered_output = "\n".join(sorted(d.serialize(format="hext").split("\n"))).strip()
+
+    assert ordered_output == ordered_input
+
+
 # def _make_large_graph():
 #     import random
 #
@@ -162,6 +172,6 @@ def test_hext_json_representation():
 #     g.serialize(destination="large.ndjson", format="hext")
 #
 #
-# if __name__ == "__main__":
-#     import cProfile
-#     cProfile.run("test_hext_scaling()", sort=1)
+if __name__ == "__main__":
+    test_roundtrip()
+