[ENH] add test for RKMEStatSpecification

tests/test_specification/test_rkme.py

@@ -0,0 +1,30 @@
+import os
+import json
+import unittest
+import tempfile
+import numpy as np
+
+import learnware
+import learnware.specification as specification
+from learnware.specification import RKMEStatSpecification
+
+
+class TestRKME(unittest.TestCase):
+    def test_rkme(self):
+        X = np.random.uniform(-10000, 10000, size=(5000, 200))
+        rkme = specification.utils.generate_rkme_spec(X)
+        
+        with tempfile.TemporaryDirectory(prefix="learnware_") as tempdir:
+            rkme_path = os.path.join(tempdir, "rkme.json")
+            rkme.save(rkme_path)
+            
+            with open(rkme_path, "r") as f:
+                data = json.load(f)
+                assert data["type"] == "RKMEStatSpecification"
+            
+            rkme2 = RKMEStatSpecification()
+            rkme2.load(rkme_path)
+
+
+if __name__ == "__main__":
+    unittest.main()