Adding tests for validator.py (#64)

* Adding tests for validator.py

* Formatting for linter (Removing E712 - comparison to True).

---------

Co-authored-by: Aidan Wallace <[email protected]>

tests/test_validator.py

@@ -0,0 +1,81 @@
+"""
+pytest -v tests/test_validator.py
+"""
+
+from wayfarer import loader, validator
+import networkx
+
+
+def create_net_with_duplicates():
+    net = networkx.MultiGraph()
+
+    networkx.add_path(net, [0, 1, 2])
+    net.add_edge(2, 3, key=1, **{"EDGE_ID": 1, "LEN_": 100})
+    net.add_edge(3, 4, key="C", **{"EDGE_ID": 1, "LEN_": 100})
+    net.add_edge(4, 5, key="C", **{"EDGE_ID": 1, "LEN_": 100})
+
+    return net
+
+
+def create_net_without_duplicates():
+    net = networkx.MultiGraph()
+
+    net.add_edge(0, 1, key=0)
+    net.add_edge(1, 2, key=1)
+    net.add_edge(2, 3, key=3)
+
+    return net
+
+
+def test_duplicate_keys():
+    net_with_duplicates = create_net_with_duplicates()
+    net_without_duplicates = create_net_without_duplicates()
+
+    duplicates = validator.duplicate_keys(net_with_duplicates)
+    no_duplicates = validator.duplicate_keys(net_without_duplicates)
+
+    assert duplicates == [0, "C"] and no_duplicates == []
+
+
+def test_valid_reverse_lookup():
+    recs = [
+        {"EDGE_ID": "A", "LEN_": 100, "NODEID_FROM": 0, "NODEID_TO": 100},
+        {"EDGE_ID": "B", "LEN_": 100, "NODEID_FROM": 100, "NODEID_TO": 200},
+    ]
+    net = loader.load_network_from_records(recs, use_reverse_lookup=True)
+
+    assert validator.valid_reverse_lookup(net)
+
+
+def test_recalculate_keys():
+    recs1 = [
+        {"EDGE_ID": "A", "LEN_": 100, "NODEID_FROM": 0, "NODEID_TO": 100},
+        {"EDGE_ID": 1, "LEN_": 100, "NODEID_FROM": 100, "NODEID_TO": 200},
+    ]
+    net1 = loader.load_network_from_records(recs1, use_reverse_lookup=True)
+
+    recs2 = [
+        {"EDGE_ID": "B", "LEN_": 100, "NODEID_FROM": 100, "NODEID_TO": 200},
+        {"EDGE_ID": 2, "LEN_": 100, "NODEID_FROM": 200, "NODEID_TO": 300},
+    ]
+    net2 = loader.load_network_from_records(recs2, use_reverse_lookup=True)
+
+    net = networkx.compose(net1, net2)
+
+    validator.recalculate_keys(net)
+
+    assert net.graph["keys"] == {
+        "A": (0, 100),
+        1: (100, 200),
+        "B": (100, 200),
+        2: (200, 300),
+    }
+
+
+def test_edge_attributes():
+    recs = [{"EDGE_ID": 0, "LEN_": 10, "NODEID_FROM": 0, "NODEID_TO": 10, "PROP1": "A"}]
+    net = loader.load_network_from_records(recs)
+
+    attributes = validator.edge_attributes(net)
+
+    assert attributes == [["EDGE_ID", "LEN_", "NODEID_FROM", "NODEID_TO", "PROP1"]]