chore: import upstream snapshot with attribution

2026-07-13 12:36:30 +08:00
commit 55ab4e4a73
473 changed files with 72932 additions and 0 deletions
@@ -0,0 +1,58 @@
+import unittest
+
+import easygraph as eg
+import numpy as np
+
+from easygraph.functions.graph_embedding.NOBE import NOBE
+from easygraph.functions.graph_embedding.NOBE import NOBE_GA
+
+
+class Test_Nobe(unittest.TestCase):
+    def setUp(self):
+        self.ds = eg.datasets.get_graph_karateclub()
+        self.edges = [(1, 4), (2, 4), (4, 1), (0, 4)]
+        self.test_graphs = [eg.classes.DiGraph(self.edges)]
+        self.test_undirected_graphs = [eg.classes.Graph(self.edges)]
+        self.shs = eg.common_greedy(self.ds, int(len(self.ds.nodes) / 3))
+
+        self.valid_graph = eg.Graph([(0, 1), (1, 2), (2, 3)])
+        self.directed_graph = eg.DiGraph([(0, 1), (1, 2)])
+        self.graph_with_isolated = eg.Graph([(0, 1), (1, 2)])
+        self.graph_with_isolated.add_node(5)  # isolated node
+
+    #
+    def test_NOBE(self):
+        for i in self.test_graphs:
+            NOBE(i, K=1)
+
+    def test_NOBE_GA(self):
+        for i in self.test_undirected_graphs:
+            NOBE_GA(i, K=1)
+
+    def test_nobe_embedding_shape(self):
+        emb = NOBE(self.valid_graph, K=2)
+        self.assertIsInstance(emb, np.ndarray)
+        self.assertEqual(emb.shape, (len(self.valid_graph.nodes), 2))
+
+    def test_nobe_ga_embedding_shape(self):
+        emb = NOBE_GA(self.valid_graph, K=2)
+        self.assertIsInstance(emb, np.ndarray)
+        self.assertEqual(emb.shape, (len(self.valid_graph.nodes), 2))
+
+    def test_nobe_invalid_k_zero(self):
+        emb = NOBE(self.valid_graph, 0)
+        self.assertIsInstance(emb, np.ndarray)
+        self.assertEqual(emb.shape, (len(self.valid_graph), 0))
+
+    def test_nobe_ga_invalid_k_zero(self):
+        emb = NOBE_GA(self.valid_graph, 0)
+        self.assertIsInstance(emb, np.ndarray)
+        self.assertEqual(emb.shape, (len(self.valid_graph), 0))
+
+    def test_nobe_with_isolated_node(self):
+        emb = NOBE(self.graph_with_isolated, K=2)
+        self.assertEqual(emb.shape[0], len(self.graph_with_isolated))
+
+
+# if __name__ == "__main__":
+#     unittest.main()