func TestSetEncoderSETSliceSuffix(t *testing.T) {
	type testSetSET []string
	testSet := testSetSET{"a", "aa", "b", "bb", "c", "cc"}

	// Expected ordering of the SET should be:
	// a, b, c, aa, bb, cc

	output, err := Marshal(testSet)
	if err != nil {
		t.Errorf("%v", err)
	}

	expectedOrder := testSetSET{"a", "b", "c", "aa", "bb", "cc"}
	var resultSet testSetSET
	rest, err := Unmarshal(output, &resultSet)