package placement

import "testing"

func TestPreferReplyExternalIDKeepsNumeric(t *testing.T) {
	got := PreferReplyExternalID("18123456789012345", "AbCdEf123")
	if got != "18123456789012345" {
		t.Fatalf("got %q", got)
	}
	got = PreferReplyExternalID("AbCdEf123", "18123456789012345")
	if got != "18123456789012345" {
		t.Fatalf("got %q", got)
	}
}