func filterDottedKeys(data map[interface{}]interface{}, keys []string) (filtered, rest map[interface{}]interface{}) {
filtered = map[interface{}]interface{}{}
rest = util.MapCopy(data)
for _, key := range keys {
f, r := filterKey(data, strings.Split(key, "."))
filtered = util.MapsUnion(filtered, f)
rest = util.MapsIntersection(rest, r)
}
return
}
func TestMapsIntersection(t *testing.T) {
assert := require.New(t)
m0 := map[interface{}]interface{}{"a": 1, "b": map[interface{}]interface{}{"c": 3}, "d": "4"}
m1 := util.MapCopy(m0)
delete(m0, "a")
b1 := m1["b"].(map[interface{}]interface{})
delete(b1, "c")
expected := map[interface{}]interface{}{"b": map[interface{}]interface{}{}, "d": "4"}
assert.Equal(expected, util.MapsIntersection(m0, m1, util.Equal))
}