feat: support columns out of order in Metric

fgpyo/util/tests/test_metric.py

@@ -343,3 +343,18 @@ def test_metrics_fast_concat(tmp_path: Path) -> None:
     assert metrics[0] == DUMMY_METRICS[0]
     assert metrics[1] == DUMMY_METRICS[1]
     assert metrics[2] == DUMMY_METRICS[2]
+
+
+def test_metric_columns_out_of_order(tmp_path: Path) -> None:
+    path = tmp_path / "metrics.txt"
+
+    name = Name(first="jon", last="Doe")
+
+    # Write the columns out of order (last then first)
+    with path.open("w") as writer:
+        writer.write("last\tfirst\n")
+        writer.write(f"{name.last}\t{name.first}\n")
+
+    names = Name.read(path=path)
+    assert len(names) == 1
+    assert names[0] == name