multiple_of to raise ValueError instead of RuntimeError

src/zhinst/toolkit/driver/parsers.py

@@ -98,6 +98,10 @@ def multiple_of(value: float, factor: float, rounding: str) -> float:
 
         Returns:
             Rounded value.
+
+        .. versionchanged:: 0.5.3
+
+            Invalid `rounding` value raises `ValueError` instead of `RuntimeError`.
         """
         if abs(round(value / factor) * factor - value) < 1e-12:
             return value
@@ -117,7 +121,7 @@ def multiple_of(value: float, factor: float, rounding: str) -> float:
                 f"multiple: {v_rounded:.3e}",
             )
             return v_rounded
-        raise RuntimeError(
+        raise ValueError(
             f"Invalid rounding type {rounding} only the "
             "following values are allowed: [nearest,down]"
         )

tests/test_parsers.py

@@ -40,5 +40,5 @@ def test_multiple_of(self, caplog):
         assert len(caplog.records) == 2
         assert Parse.multiple_of(12, 6, "down") == 12
         assert len(caplog.records) == 2
-        with pytest.raises(RuntimeError):
+        with pytest.raises(ValueError):
             Parse.multiple_of(100, 6, "up")