setup

test 123,456 is a point
test not (123,456 is not a point)

test 123 is not a point
test 1.5 is not a point
test "abc" is not a point

test 0,0,0 is not a point

test 0,"abc" is not a point
test 0,1.23 is not a point

test empty is not a point

teardown

