fix: handle missing config file gracefully

task.py

@@ -10,10 +10,32 @@
 from commands.done import mark_done
 
 
+DEFAULT_CONFIG = """# Default configuration for task CLI
+# Customize at ~/.config/task-cli/config.yaml
+
+# Task storage settings
+storage:
+  format: json
+  max_tasks: 1000
+
+# Display settings
+display:
+  color: true
+  unicode: true
+"""
+
+
 def load_config():
-    """Load configuration from file."""
+    """Load configuration from file, creating default if missing."""
     config_path = Path.home() / ".config" / "task-cli" / "config.yaml"
-    # NOTE: This will crash if config doesn't exist - known bug for bounty testing
+
+    if not config_path.exists():
+        # Create config directory if it doesn't exist
+        config_path.parent.mkdir(parents=True, exist_ok=True)
+        # Write default config
+        config_path.write_text(DEFAULT_CONFIG)
+        print(f"Created default config at: {config_path}")
+
     with open(config_path) as f:
         return f.read()
 

test_task.py

@@ -2,9 +2,13 @@
 
 import json
 import pytest
+import tempfile
+import os
 from pathlib import Path
+from unittest.mock import patch
 from commands.add import add_task, validate_description
 from commands.done import validate_task_id
+from task import load_config, DEFAULT_CONFIG
 
 
 def test_validate_description():
@@ -28,3 +32,40 @@ def test_validate_task_id():
 
     with pytest.raises(ValueError):
         validate_task_id(tasks, 99)
+
+
+def test_load_config_creates_default_when_missing():
+    """Test that load_config creates default config when file is missing."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        # Mock Path.home() to return our temp directory
+        fake_home = Path(tmpdir)
+        config_path = fake_home / ".config" / "task-cli" / "config.yaml"
+
+        with patch.object(Path, 'home', return_value=fake_home):
+            # Config should not exist initially
+            assert not config_path.exists()
+
+            # Load config - should create default
+            result = load_config()
+
+            # Config file should now exist
+            assert config_path.exists()
+
+            # Content should match default config
+            assert result == DEFAULT_CONFIG
+
+
+def test_load_config_reads_existing_config():
+    """Test that load_config reads existing config file."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        fake_home = Path(tmpdir)
+        config_path = fake_home / ".config" / "task-cli" / "config.yaml"
+
+        # Create config directory and file
+        config_path.parent.mkdir(parents=True, exist_ok=True)
+        custom_config = "custom: config\n"
+        config_path.write_text(custom_config)
+
+        with patch.object(Path, 'home', return_value=fake_home):
+            result = load_config()
+            assert result == custom_config