Add template test cases

Author: subodh101

Makefile

@@ -19,3 +19,6 @@ lint:
 run:
 	pipenv run python -m main
 
+.PHONY: tests
+tests:
+	pipenv run python -m pytest tests -rP

main.py

@@ -1 +1,6 @@
-print("Hello")
+from utils import concatenate_strings
+
+s1 = "Hello, "
+s2 = "World!"
+
+print(concatenate_strings(str1=s1, str2=s2))

tests/__init__.py

@@ -0,0 +1,20 @@
+from utils import concatenate_strings
+
+
+def test_concatenate_strings():
+    # Test with normal strings
+    assert concatenate_strings("Hello, ", "World!") == "Hello, World!", "Test with normal strings failed"
+
+    # Test with empty strings
+    assert concatenate_strings("", "") == "", "Test with empty strings failed"
+    assert concatenate_strings("Hello", "") == "Hello", "Test with empty string (second argument) failed"
+    assert concatenate_strings("", "World!") == "World!", "Test with empty string (first argument) failed"
+
+    # Test with numeric strings
+    assert concatenate_strings("123", "456") == "123456", "Test with numeric strings failed"
+
+    # Test with special characters
+    assert concatenate_strings("Hello@", "#World") == "Hello@#World", "Test with special characters failed"
+
+    # Test with mixed characters
+    assert concatenate_strings("123", "ABC") == "123ABC", "Test with mixed characters failed"

tests/test_utils.py

@@ -0,0 +1,12 @@
+def concatenate_strings(str1: str, str2: str):
+    """
+    Concatenates two given strings.
+
+    Parameters:
+    str1 (str): The first string.
+    str2 (str): The second string.
+
+    Returns:
+    str: The concatenated string.
+    """
+    return str1 + str2