1package set
2
3// testRules is a rules implementation that is used for testing. It only
4// accepts ints as values, and it has a Hash function that just returns the
5// given value modulo 16 so that we can easily and dependably test the
6// situation where two non-equivalent values have the same hash value.
7type testRules struct{}
8
9func (r testRules) Hash(val interface{}) int {
10	return val.(int) % 16
11}
12
13func (r testRules) Equivalent(val1 interface{}, val2 interface{}) bool {
14	return val1 == val2
15}
16
17func (r testRules) SameRules(other Rules) bool {
18	return r == other // true if "other" is also a testRules
19}
20