[Graphbolt] Update unit test to match the official edge format. (#6215)

Co-authored-by: Ubuntu <ubuntu@ip-172-31-28-63.ap-northeast-1.compute.internal>

tests/python/pytorch/graphbolt/impl/test_basic_feature_store.py

@@ -10,14 +10,14 @@ def test_basic_feature_store():
 
     features = {}
     features[("node", "paper", "a")] = gb.TorchBasedFeature(a)
-    features[("edge", "paper-cites-paper", "b")] = gb.TorchBasedFeature(b)
+    features[("edge", "paper:cites:paper", "b")] = gb.TorchBasedFeature(b)
 
     feature_store = gb.BasicFeatureStore(features)
     assert torch.equal(
         feature_store.read("node", "paper", "a"), torch.tensor([3, 2, 1])
     )
     assert torch.equal(
-        feature_store.read("edge", "paper-cites-paper", "b"),
+        feature_store.read("edge", "paper:cites:paper", "b"),
         torch.tensor([2, 5, 3]),
     )
     assert torch.equal(

tests/python/pytorch/graphbolt/impl/test_torch_based_feature_store.py

@@ -89,7 +89,7 @@ def test_torch_based_feature_store(in_memory):
             ),
             gb.OnDiskFeatureData(
                 domain="edge",
-                type="paper-cites-paper",
+                type="paper:cites:paper",
                 name="b",
                 format="numpy",
                 path=os.path.join(test_dir, "b.npy"),
@@ -101,7 +101,7 @@ def test_torch_based_feature_store(in_memory):
             feature_store.read("node", "paper", "a"), torch.tensor([1, 2, 3])
         )
         assert torch.equal(
-            feature_store.read("edge", "paper-cites-paper", "b"),
+            feature_store.read("edge", "paper:cites:paper", "b"),
             torch.tensor([2, 5, 3]),
         )