Where can I find some GPS unit test data? [closed]

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Where can I find some GPS unit test data to validate my code?

For example:

1. Distance between two coordinates (miles / kilometers)
2. Heading/bearing from Point A to Point B
3. Speed from Ponit A to Point B given a duration

Right now I'm using Google Earth to fumble around with this, but it would be nice to know I'm validating my calculations against something, well, valid.