@Test
public void testIllegalArguments() throws Exception {
DnsClient dns = prepareDns(FakeDNSServer.testResolveAAAA("::1"));
assertNullPointerException(() -> dns.lookup(null, ar -> {}));
assertNullPointerException(() -> dns.lookup4(null, ar -> {}));
assertNullPointerException(() -> dns.lookup6(null, ar -> {}));
assertNullPointerException(() -> dns.resolveA(null, ar -> {}));
assertNullPointerException(() -> dns.resolveAAAA(null, ar -> {}));
assertNullPointerException(() -> dns.resolveCNAME(null, ar -> {}));
assertNullPointerException(() -> dns.resolveMX(null, ar -> {}));
assertNullPointerException(() -> dns.resolveTXT(null, ar -> {}));
assertNullPointerException(() -> dns.resolvePTR(null, ar -> {}));
assertNullPointerException(() -> dns.resolveNS(null, ar -> {}));
assertNullPointerException(() -> dns.resolveSRV(null, ar -> {}));
dnsServer.stop();
}
@Test
public void testResolveCNAME() throws Exception {
final String cname = "cname.vertx.io";
DnsClient dns = prepareDns(FakeDNSServer.testResolveCNAME(cname));
dns.resolveCNAME(
"vertx.io",
ar -> {
List<String> result = ar.result();
assertNotNull(result);
assertFalse(result.isEmpty());
assertEquals(1, result.size());
String record = result.get(0);
assertFalse(record.isEmpty());
assertEquals(cname, record);
testComplete();
});
await();
dnsServer.stop();
}