Refactor: Modified input validation and updated input handling in the…

… function.

- Replaced assert statements with specific error handling (TypeError and ValueError).
- Updated test cases to check for the new errors:
-- TypeError for non-integer inputs (string, None, float).
-- ValueError for negative year inputs.

solutions/binary_to_decimal.py

@@ -22,10 +22,8 @@ def binary_to_decimal(binary_str: str) -> int:
         The decimal equivalent of the binary number as an integer
 
     Raises:
-        AssertionError: If the input is a float.
-        AssertionError: If the input is None.
-        AssertionError: If the input is not a string.
-        AssertionError: If the input contains non-binary characters.
+        TypeError: If the input is not a string or None.
+        ValueError: If the input contains non-binary characters.
 
     >>> binary_to_decimal ("1010")
     10
@@ -37,12 +35,12 @@ def binary_to_decimal(binary_str: str) -> int:
     4
     """
 
-    assert isinstance(binary_str, str), "Entered value is not a string"
+    if not isinstance(binary_str, str):
+        raise TypeError("Entered value is not a string.")
     if not binary_str:
         raise ValueError("Input binary string cannot be empty.")
-    assert all(
-        bit in "01" for bit in binary_str
-    ), "Entered string contains non-binary characters"
+    if not all(bit in "01" for bit in binary_str):
+        raise ValueError("Entered string contains non-binary characters.")
 
     decimal = 0
     length = len(binary_str)

solutions/tests/test_binary_to_decimal.py

@@ -65,23 +65,23 @@ def test_large_binary_number(self):
 
     # Defensive tests
     def test_invalid_characters(self):
-        """It should raise an AssertionError for non-binary characters."""
-        with self.assertRaises(AssertionError):
+        """It should raise a ValueError for non-binary characters."""
+        with self.assertRaises(ValueError):
             binary_to_decimal("10A01")
 
     def test_non_string_input(self):
-        """It should raise an AssertionError for non-string input."""
-        with self.assertRaises(AssertionError):
+        """It should raise a TypeError for non-string input."""
+        with self.assertRaises(TypeError):
             binary_to_decimal(1010)
 
     def test_none_input(self):
-        """It should raise an AssertionError for None input."""
-        with self.assertRaises(AssertionError):
+        """It should raise a TypeError for None input."""
+        with self.assertRaises(TypeError):
             binary_to_decimal(None)
 
     def test_float_input(self):
-        """It should raise an AssertionError for a float input."""
-        with self.assertRaises(AssertionError):
+        """It should raise a TypeError for a float input."""
+        with self.assertRaises(TypeError):
             binary_to_decimal(10.1)