Add new test cases for graph id

test/graph_id/test_graph_id.py

@@ -32,6 +32,22 @@ def test_graph_id_str(graph_ids):
     assert str(graph_ids[6]) == "3"
     assert str(graph_ids[7]) == "ABCDEFGHIJKLMNOPQRSTUVWXYZ4"
 
+def test_graph_id_repr(graph_ids):
+    assert repr(graph_ids[0]) == "add1"
+    assert repr(graph_ids[1]) == "add2"
+    assert repr(graph_ids[2]) == "sig1"
+    assert repr(graph_ids[3]) == "sig1"
+    assert repr(graph_ids[4]) == "sub3"
+    assert repr(graph_ids[5]) == "ÅÄÖ2"
+    assert repr(graph_ids[6]) == "3"
+    assert repr(graph_ids[7]) == "ABCDEFGHIJKLMNOPQRSTUVWXYZ4"
+
+def test_graph_id_eq(graph_ids):
+    assert graph_ids[0] == graph_ids[0]
+    assert graph_ids[0] != graph_ids[1]
+    assert graph_ids[2] == graph_ids[3]
+    assert graph_ids[0] != graph_ids[2]
+    assert graph_ids[4] != graph_ids[6]