@Test
public void testGetServerPrincipal() throws IOException {
String service = "TestKerberosUtil";
String localHostname = KerberosUtil.getLocalHostName();
String testHost = "FooBar";
// send null hostname
Assert.assertEquals(
"When no hostname is sent",
service + "/" + localHostname.toLowerCase(Locale.ENGLISH),
KerberosUtil.getServicePrincipal(service, null));
// send empty hostname
Assert.assertEquals(
"When empty hostname is sent",
service + "/" + localHostname.toLowerCase(Locale.ENGLISH),
KerberosUtil.getServicePrincipal(service, ""));
// send 0.0.0.0 hostname
Assert.assertEquals(
"When 0.0.0.0 hostname is sent",
service + "/" + localHostname.toLowerCase(Locale.ENGLISH),
KerberosUtil.getServicePrincipal(service, "0.0.0.0"));
// send uppercase hostname
Assert.assertEquals(
"When uppercase hostname is sent",
service + "/" + testHost.toLowerCase(Locale.ENGLISH),
KerberosUtil.getServicePrincipal(service, testHost));
// send lowercase hostname
Assert.assertEquals(
"When lowercase hostname is sent",
service + "/" + testHost.toLowerCase(Locale.ENGLISH),
KerberosUtil.getServicePrincipal(service, testHost.toLowerCase(Locale.ENGLISH)));
}
