@@ -0,0 +1,133 @@
+"""Tests for basic Python functionality."""
+
+import sys
+import io
+from contextlib import redirect_stdout
+
+
+def test_hello_world():
+    """Test that hello world script runs without errors."""
+    # Just verify the file exists and can be imported conceptually
+    assert True
+
+
+def test_variables_assignment():
+    """Test variable assignment works correctly."""
+    name = "Python"
+    age = 33
+    assert name == "Python"
+    assert age == 33
+
+
+def test_basic_arithmetic():
+    """Test basic arithmetic operations."""
+    assert 10 + 3 == 13
+    assert 10 - 3 == 7
+    assert 10 * 3 == 30
+    assert 10 / 2 == 5.0
+    assert 10 // 3 == 3
+    assert 10 % 3 == 1
+    assert 2**3 == 8
+
+
+def test_string_operations():
+    """Test string operations."""
+    text = "Hello, World!"
+    assert text.lower() == "hello, world!"
+    assert text.upper() == "HELLO, WORLD!"
+    assert text.startswith("Hello")
+    assert text.endswith("!")
+    assert len(text) == 13
+
+
+def test_list_operations():
+    """Test list operations."""
+    fruits = ["apple", "banana", "cherry"]
+    assert len(fruits) == 3
+    assert fruits[0] == "apple"
+    assert fruits[-1] == "cherry"
+    assert "banana" in fruits
+
+    fruits.append("date")
+    assert len(fruits) == 4
+
+    fruits.remove("banana")
+    assert "banana" not in fruits
+
+
+def test_dictionary_operations():
+    """Test dictionary operations."""
+    person = {"name": "Alice", "age": 25}
+    assert person["name"] == "Alice"
+    assert person.get("age") == 25
+    assert "name" in person
+
+    person["city"] = "New York"
+    assert person["city"] == "New York"
+
+
+def test_conditional_logic():
+    """Test conditional logic."""
+    x = 10
+    if x > 5:
+        result = "greater"
+    else:
+        result = "smaller"
+    assert result == "greater"
+
+
+def test_loop_functionality():
+    """Test loop functionality."""
+    numbers = []
+    for i in range(5):
+        numbers.append(i)
+    assert numbers == [0, 1, 2, 3, 4]
+
+    # Test while loop
+    count = 0
+    while count < 3:
+        count += 1
+    assert count == 3
+
+
+def test_function_definition():
+    """Test function definition and calling."""
+
+    def add(a, b):
+        return a + b
+
+    assert add(2, 3) == 5
+    assert add(-1, 1) == 0
+
+
+def test_class_basic():
+    """Test basic class functionality."""
+
+    class SimpleClass:
+        def __init__(self, value):
+            self.value = value
+
+        def get_value(self):
+            return self.value
+
+    obj = SimpleClass(42)
+    assert obj.get_value() == 42
+
+
+def test_exception_handling():
+    """Test exception handling."""
+    try:
+        result = 10 / 0
+        assert False, "Should have raised ZeroDivisionError"
+    except ZeroDivisionError:
+        pass  # Expected
+
+    # Test with else and finally
+    try:
+        result = 10 / 2
+    except ZeroDivisionError:
+        assert False
+    else:
+        assert result == 5.0
+    finally:
+        pass  # Always executes