Tests

Test: front-is-clear

True if there is no wall directly in front of Karel. False if there is.

Test: front-is-blocked

True if there is a wall directly in front of Karel. False otherwise.

Test: left-is-clear

True if there is no wall immediately to Karel's left. False if there is.

Test: left-is-blocked

True if there is a wall immediately to Karel's left. False otherwise.

Test: right-is-clear

True if there is no wall immediately to Karel's right. False if there is.

Test: right-is-blocked

True if there is a wall immediately to Karel's right. False otherwise.

Test: next-to-a-beeper

True if Karel is standing at an intersection that has a beeper. False otherwise.

Test: not-next-to-a-beeper

True if there is not beeper at the current intersection. False if there is a beeper at the current intersection.

Test: facing-north

True if Karel is facing north. False otherwise.

Test: not-facing-north

True if Karel is not facing north. False if he is facing north.

Test: facing-south

True if Karel is facing south. False otherwise.

Test: not-facing-south

True if Karel is not facing south. False if he is facing south.

Test: facing-east

True if Karel is facing east. False otherwise.

Test: not-facing-east

True if Karel is not facing east. False if he is facing east.

Test: facing-west

True if Karel is facing west. False otherwise.

Test: not-facing-west

True if Karel is not facing west. False if he is facing west.

Test: any-beepers-in-beeper-bag

True if there is at least one beeper in Karel's beeper bag. False if the beeper bag is empty.

Test: no-beepers-in-beeper-bag

True if Karel's beeper bag is empty. False if there is at least one beeper in the beeper bag.

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