Imagine a situation: you are an engineer systems tester and need to accept a lift in a multi-storey building. What test cases can you come up with?

• Verification of correct elevator call from different floors (up/down).
• Testing door opening and closing: smoothness, time, safety (e.g., obstacle sensors).
• Checking maximum load capacity: what happens in case of overload.
• Testing operation of buttons inside the cabin and on floors.
• Verification of stops on all floors, including the extreme ones (first and last).
• Checking the operation of emergency alarm and communication.
• Testing elevator operation during power outage (emergency power).
• Checking elevator speed and smoothness of stops.
• Testing system operation during simultaneous calls from different floors.
• Verification of safety system operation in case of elevator entrapment (automatic rescue call).
• Testing floor indicators and direction indicators.

Each test case should include the expected result and testing conditions.