in gazebo/src/cmp.rs [203:219]
fn test_cmp_any() {
let w1 = Wrap(1);
let w2 = Wrap(1);
let w3 = Wrap(2);
assert_eq!(w1.token() == w2.token(), true);
assert_eq!(w1.token() == w3.token(), false);
let w4 = Wrap("foo");
let w5 = Wrap("foo");
let w6 = Wrap("bar");
assert_eq!(w4.token() == w5.token(), true);
assert_eq!(w4.token() == w6.token(), false);
assert_eq!(w1.token() == w6.token(), false);
}