Test input validation in single coin flip function

Author: dagpunk

src/tests/test_single_coin_flip.py

@@ -1,5 +1,7 @@
 """Test the single coin flip functionality from flip_coins"""
 
+import pytest
+
 import src.flip_coins
 
 
@@ -13,3 +15,21 @@ def test_single_coin_flip() -> None:
     assert 0 <= result["heads_count"][0] <= 1
     assert 0 <= result["tails_count"][0] <= 1
     assert result["heads_count"][0] != result["tails_count"][0]
+
+
+def test_single_coin_flip_invalid_input_type() -> None:
+    """Test the exception raising logic when given an invalid input type"""
+    with pytest.raises(TypeError):
+        src.flip_coins.flip_coin(5)
+
+
+def test_single_coin_flip_empty_string_value() -> None:
+    """Test the exception raising logic when given an empty string value"""
+    with pytest.raises(ValueError):
+        src.flip_coins.flip_coin("")
+
+
+def test_single_coin_flip_invalid_string_value() -> None:
+    """Test the exception raising logic when given an invalid string value"""
+    with pytest.raises(ValueError):
+        src.flip_coins.flip_coin("this_is_invalid")