Fix behavior when the specified number of decimals is not high enough…

… to display the value

src/application/helpers.py

@@ -47,8 +47,8 @@ def get_first_digit(cls, value: Decimal) -> int:
     @classmethod
     def round_to_n_decimal_places(cls, value: Decimal, n: int) -> str:
         try:
-            decimal_value = value.quantize(Decimal(f"1.{'0' * abs(n)}"))
-            return f"{decimal_value:.{abs(n)}f}"
+            decimal_value = value.quantize(Decimal(f"1.{'0' * n}"))
+            return f"{decimal_value:.{n}f}"
         except decimal.InvalidOperation as exc:
             raise ValueError(
                 "Your precision is set too low to be able to process the given value without any"

src/domain/value.py

@@ -32,6 +32,10 @@ def __init__(self, value: Decimal, min_exponent: Union[int, None] = None):
 
     def set_min_exponent(self, min_exponent: int):
         self._min_exponent = min_exponent
+        if min_exponent > self._max_exponent:
+            self._max_exponent = min_exponent
+            # TODO: Raise a warning here? However, a warning should be raised on application level
+            # rather than here.
 
     def get_min_exponent(self) -> int:
         return self._min_exponent