Pass it "starts at zero".
TaxiMeter.stop and TaxiMeter.start tests.
Pass start and stop tests.
Rest to soft-tabs
Pass it charges $2.50 for the first 1/6 mile (recorded in cents).
Add and pass tests for charging 40¢ per sixth mile.
Add and pass tests for minimum fare of $13.10 from airport.
Lunchtime.
Add Patrick's spec file.
Pass 1 hour wait time, no distance test.
Add time based rate tests.