Fix hyphen bug in MetadataTableRegistry

ml_experiment/metadata/MetadataTableRegistry.py

@@ -14,7 +14,7 @@ def __init__(self):
 
     def get_parts(self, cur: sqlite3.Cursor) -> set[str]:
         n = sqlu.get_tables(cur)
-        return set(p.split('-')[0] for p in n)
+        return set(p.rsplit('-', 1)[0] for p in n)
 
 
     def get_table(self, cur: sqlite3.Cursor, part_name: str, version: int) -> MetadataTable | None:

tests/metadata/test_MetadataTableRegistry.py

@@ -0,0 +1,72 @@
+import os
+import sqlite3
+
+from ml_experiment.DefinitionPart import DefinitionPart
+from ml_experiment.metadata.MetadataTableRegistry import MetadataTableRegistry
+
+
+def test_get_parts(tmp_path):
+    """
+    Test that get parts returns the parts correctly
+    """
+    # spin up metadata database
+    df = DefinitionPart("test", base=str(tmp_path))
+    df.add_property("a", 1)
+    df.add_property("b", 2)
+    df.add_property("c", 3)
+    df.add_sweepable_property("seed", [1, 2, 3])
+    df.commit()
+
+    # find database file
+    meta = MetadataTableRegistry()
+    res_path = os.path.join(df.get_results_path(df.base_path), "metadata.db")
+
+    ## initial test to get part name
+    # get parts
+    with sqlite3.connect(res_path) as con:
+        cur = con.cursor()
+        parts = meta.get_parts(cur)
+
+        assert parts == set(["test"])
+
+    ## test adding another property
+    # add another property
+    df.add_sweepable_property("d", [4, 5, 6], assume_prior_value=4)
+    df.commit()
+
+    # get parts
+    with sqlite3.connect(res_path) as con:
+        cur = con.cursor()
+        parts = meta.get_parts(cur)
+
+        assert parts == set(["test"])
+
+    ## test adding a second part
+    # add another part
+    df2 = DefinitionPart("test-2", base=str(tmp_path))
+    df2.add_property("a", 1)
+    df2.add_property("b", 2)
+    df2.add_property("c", 3)
+    df2.add_sweepable_property("seed", [1, 2, 3])
+    df2.commit()
+
+    # get parts
+    with sqlite3.connect(res_path) as con:
+        cur = con.cursor()
+        parts = meta.get_parts(cur)
+
+        assert parts == set(["test", "test-2"])
+
+    ## test with a part with a lot of hyphens
+    # add another part
+    df3 = DefinitionPart("test-3-lot-of-hyphens-", base=str(tmp_path))
+    df3.add_property("a", 1)
+    df3.add_sweepable_property("seed", [1, 2, 3])
+    df3.commit()
+
+    # get parts
+    with sqlite3.connect(res_path) as con:
+        cur = con.cursor()
+        parts = meta.get_parts(cur)
+
+        assert parts == set(["test", "test-2", "test-3-lot-of-hyphens-"])