M8-R14: preserve zero DSMR sample interval

2026-08-27 21:29:45 +02:00
parent b472f91f19
commit 8180082f90
3 changed files with 37 additions and 4 deletions
@@ -98,8 +98,10 @@ def _validate_field_value(kind: str, field: SourceConfigField, value: Any) -> No
    _check_type(field, value)
    if field.name == "path" and not value.startswith("/dev/"):
        raise SourceProfileError("warmtelink_serial config path must start with '/dev/'.")
-    if field.name in {"broker_port", "sample_interval_s", "baudrate"} and value <= 0:
+    if field.name in {"broker_port", "baudrate"} and value <= 0:
        raise SourceProfileError(f"Config field {field.name!r} must be greater than zero.")
+    if field.name == "sample_interval_s" and value < 0:
+        raise SourceProfileError("Config field 'sample_interval_s' must not be negative.")
    if field.name == "data_bits" and value != 7:
        raise SourceProfileError("warmtelink_serial data_bits must be 7.")
    if field.name == "parity" and value != "N":