update model version

tests/test_artifact_paths.py

@@ -0,0 +1,21 @@
+import unittest
+from pathlib import Path
+
+from cbpred.__main__ import build_parser
+
+
+class ArtifactPathTests(unittest.TestCase):
+    def test_cli_defaults_use_versioned_artifact_directory(self):
+        parser = build_parser()
+
+        train = parser.parse_args(["train"])
+        run = parser.parse_args(["run"])
+        predict = parser.parse_args(["predict", "--csv", "data.csv"])
+
+        self.assertEqual(train.artifact_dir, Path("artifacts/v1"))
+        self.assertEqual(run.artifact_dir, Path("artifacts/v1"))
+        self.assertEqual(predict.artifact, Path("artifacts/v1/model.joblib"))
+
+
+if __name__ == "__main__":
+    unittest.main()