fix compile app with string oid graph, add a simple test

python/graphscope/framework/dag_utils.py

@@ -41,7 +41,9 @@ def create_app(graph, app):
     config = {
         types_pb2.APP_ALGO: utils.s_to_attr(app.algo),
         types_pb2.GRAPH_TYPE: utils.graph_type_to_attr(graph.graph_type),
-        types_pb2.OID_TYPE: utils.s_to_attr(graph.schema.oid_type),
+        types_pb2.OID_TYPE: utils.s_to_attr(
+            utils.normalize_data_type_str(graph.schema.oid_type)
+        ),
         types_pb2.VID_TYPE: utils.s_to_attr(graph.schema.vid_type),
         types_pb2.V_DATA_TYPE: utils.s_to_attr(
             utils.data_type_to_cpp(graph.schema.vdata_type)

python/tests/conftest.py

@@ -466,6 +466,28 @@ def p2p_property_graph(graphscope_session):
     yield g
 
 
+@pytest.fixture(scope="module")
+def p2p_property_graph_string(graphscope_session):
+    g = graphscope_session.load_from(
+        edges={
+            "knows": (
+                Loader("{}/p2p-31_property_e_0".format(property_dir), header_row=True),
+                ["src_label_id", "dst_label_id", "dist"],
+                ("src_id", "person"),
+                ("dst_id", "person"),
+            ),
+        },
+        vertices={
+            "person": Loader(
+                "{}/p2p-31_property_v_0".format(property_dir), header_row=True
+            ),
+        },
+        generate_eid=False,
+        oid_type="string",
+    )
+    yield g
+
+
 @pytest.fixture(scope="module")
 def p2p_property_graph_undirected(graphscope_session):
     g = graphscope_session.load_from(
@@ -501,6 +523,12 @@ def p2p_project_undirected_graph(p2p_property_graph_undirected):
     yield pg
 
 
+@pytest.fixture(scope="module")
+def p2p_project_directed_graph_string(p2p_property_graph_string):
+    pg = p2p_property_graph_string.project_to_simple(0, 0, 0, 2)
+    yield pg
+
+
 @pytest.fixture(scope="module")
 def projected_pg_no_edge_data(arrow_property_graph):
     pg = arrow_property_graph.project_to_simple(0, 0, None, None)

python/tests/test_app.py

@@ -341,6 +341,12 @@ def test_app_on_undirected_graph(
     assert np.all(ctx10.to_numpy("r", vertex_range={"begin": 1, "end": 4}) == [0, 0, 0])
 
 
+def test_run_app_on_string_oid_graph(p2p_project_directed_graph_string):
+    ctx = sssp(p2p_project_directed_graph_string, src="6")
+    r1 = ctx.to_dataframe({"node": "v.id", "r": "r"})
+    assert r1[r1["node"] == "6"].r.values[0] == 0.0
+
+
 def test_error_on_parameters_not_correct(arrow_project_graph):
     # Incorrect type of parameters
     with pytest.raises(ValueError, match="could not convert string to float"):