test_app.py

"""
Unit tests for Todo List Application
"""
import pytest
from app import TodoList


def test_add_todo():
    """Test adding a todo item"""
    todo = TodoList()
    todo.add_todo("Learn Git")
    assert len(todo.todos) == 1
    assert todo.todos[0]["task"] == "Learn Git"
    assert todo.todos[0]["completed"] is False


def test_complete_todo():
    """Test completing a todo item"""
    todo = TodoList()
    todo.add_todo("Master GitHub")
    todo.complete_todo(0)
    assert todo.todos[0]["completed"] is True


def test_delete_todo():
    """Test deleting a todo item"""
    todo = TodoList()
    todo.add_todo("Practice rebase")
    todo.delete_todo(0)
    assert len(todo.todos) == 0


def test_list_empty_todos():
    """Test listing when no todos exist"""
    todo = TodoList()
    todo.list_todos()
    assert len(todo.todos) == 0


def test_invalid_complete_index():
    """Test completing with invalid index"""
    todo = TodoList()
    todo.add_todo("Test error handling")
    todo.complete_todo(999)  # Should not crash
    assert todo.todos[0]["completed"] is False


# TODO: Add more tests
# TODO: Test file operations
def test_placeholder():
    pass


# TODO: Add more tests
# TODO: Test file operations
def test_placeholder():
    pass