NO TICKET: m to ft fix

services/util.py

@@ -45,25 +45,18 @@ def transform_srid(geometry, source_srid, target_srid):
     return transform(transformer.transform, geometry)
 
 
-def convert_m_to_ft(meters: float | None) -> float | None:
-    """Convert a length from meters to feet."""
-    if meters is None:
-        return None
-    return round(meters * METERS_TO_FEET, 6)
-
-
-def convert_ft_to_m(feet: float | None) -> float | None:
+def convert_ft_to_m(feet: float | None, ndigits: int = 6) -> float | None:
     """Convert a length from feet to meters."""
     if feet is None:
         return None
-    return round(feet / METERS_TO_FEET, 6)
+    return round(feet / METERS_TO_FEET, ndigits)
 
 
-def convert_m_to_ft(meters: float | None) -> float | None:
+def convert_m_to_ft(meters: float | None, ndigits: int = 6) -> float | None:
     """Convert a length from meters to feet."""
     if meters is None:
         return None
-    return round(meters * METERS_TO_FEET, 6)
+    return round(meters * METERS_TO_FEET, ndigits)
 
 
 def get_tiger_data(

tests/test_util.py

@@ -0,0 +1,17 @@
+from services.util import convert_ft_to_m, convert_m_to_ft
+
+
+def test_convert_ft_to_m():
+    assert convert_ft_to_m(0) == 0.0
+    assert convert_ft_to_m(3.28084) == 1.0
+    assert convert_ft_to_m(10) == 3.048
+    assert convert_ft_to_m(None) is None
+    assert convert_ft_to_m(10, ndigits=4) == 3.048
+
+
+def test_convert_m_to_ft():
+    assert convert_m_to_ft(0) == 0.0
+    assert convert_m_to_ft(1) == 3.28084
+    assert convert_m_to_ft(3.048) == 10.0
+    assert convert_m_to_ft(None) is None
+    assert convert_m_to_ft(3.048, ndigits=4) == 10.0