There are a few key things you would want to test when it comes to the Google Maps "Get Directions" feature.
First, you would want to test that the feature works correctly in various scenarios - for example, inputting a starting location and destination, and verifying that the correct route is displayed. Additionally, you would want to test different types of input (address, business name, landmark, etc.) to ensure that the feature can handle different types of input.
Next, you would want to test the accuracy of the directions themselves. This can be done by inputting a starting location and destination, and then physically following the route to see if it matches up with what is displayed on the map.
Finally, you would want to test the various features and options available within the "Get Directions" feature, such as choosing different modes of transportation, setting waypoints, and avoiding tolls or highways.