Fixed cast of as_node and as_relationship (#227)

* Fixed cast of as_node and as_relationship

UT added, too

* newline added in requirements/example.in

address aiee's comment

example/FormatResp.py

@@ -47,8 +47,8 @@ def result_to_df(result: ResultSet) -> pd.DataFrame:
     Value.TVAL: "as_time",
     Value.DVAL: "as_date",
     Value.DTVAL: "as_datetime",
-    Value.VVAL: "as_vertex",
-    Value.EVAL: "as_edge",
+    Value.VVAL: "as_node",
+    Value.EVAL: "as_relationship",
     Value.PVAL: "as_path",
     Value.GGVAL: "as_geography",
     Value.DUVAL: "as_duration",

nebula3/data/DataObject.py

@@ -34,8 +34,8 @@
     Value.TVAL: "as_time",
     Value.DVAL: "as_date",
     Value.DTVAL: "as_datetime",
-    Value.VVAL: "as_vertex",
-    Value.EVAL: "as_edge",
+    Value.VVAL: "as_node",
+    Value.EVAL: "as_relationship",
     Value.PVAL: "as_path",
     Value.GGVAL: "as_geography",
     Value.DUVAL: "as_duration",

requirements/example.in

@@ -1 +1,2 @@
 prettytable
+pandas

requirements/example.txt

@@ -1,10 +1,20 @@
 #
-# This file is autogenerated by pip-compile with python 3.8
+# This file is autogenerated by pip-compile with python 3.9
 # To update, run:
 #
 #    pip-compile requirements/example.in
 #
+numpy==1.23.4
+    # via pandas
+pandas==1.5.0
+    # via -r requirements/example.in
 prettytable==2.4.0
     # via -r requirements/example.in
+python-dateutil==2.8.2
+    # via pandas
+pytz==2022.4
+    # via pandas
+six==1.16.0
+    # via python-dateutil
 wcwidth==0.2.5
     # via prettytable

tests/test_data_type.py

@@ -348,6 +348,14 @@ def test_cast(self):
         tmp_map_val.kvs = {b"a": str_val1, b"b": str_val2}
         map_val.set_mVal(tmp_map_val)
 
+        node_val = ttypes.Value()
+        node_val.set_vVal(self.get_vertex_value(b'Tom'))
+
+        relationship_val = ttypes.Value(eVal=self.get_edge_value(b'Tom', b'Lily'))
+
+        path_val = ttypes.Value()
+        path_val.set_pVal(self.get_path_value(b'Tom'))
+
         tmp_list_val = NList()
         tmp_list_val.values = [
             bool_val,
@@ -357,6 +365,9 @@ def test_cast(self):
             str_val2,
             set_val,
             map_val,
+            node_val,
+            relationship_val,
+            path_val,
         ]
         value.set_lVal(tmp_list_val)
 
@@ -373,6 +384,9 @@ def test_cast(self):
             "car",
             {"word", "car"},
             {"a": "word", "b": "car"},
+            ValueWrapper(node_val).as_node(),
+            ValueWrapper(relationship_val).as_relationship(),
+            ValueWrapper(path_val).as_path(),
         ]
         assert list_val == expect_result