/** test constructor */
@Test
public void testConstructor() throws Exception {
UserGroupInformation ugi =
UserGroupInformation.createUserForTesting("user2/[email protected]", GROUP_NAMES);
// make sure the short and full user names are correct
assertEquals("user2/[email protected]", ugi.getUserName());
assertEquals("user2", ugi.getShortUserName());
ugi = UserGroupInformation.createUserForTesting(USER_NAME, GROUP_NAMES);
assertEquals("user1", ugi.getShortUserName());
// failure test
testConstructorFailures(null);
testConstructorFailures("");
}
/** given user name - get all the groups. Needs to happen before creating the test users */
@Test
public void testGetServerSideGroups() throws IOException, InterruptedException {
// get the user name
Process pp = Runtime.getRuntime().exec("whoami");
BufferedReader br = new BufferedReader(new InputStreamReader(pp.getInputStream()));
String userName = br.readLine().trim();
// get the groups
pp = Runtime.getRuntime().exec("id -Gn");
br = new BufferedReader(new InputStreamReader(pp.getInputStream()));
String line = br.readLine();
System.out.println(userName + ":" + line);
List<String> groups = new ArrayList<String>();
for (String s : line.split("[\\s]")) {
groups.add(s);
}
final UserGroupInformation login = UserGroupInformation.getCurrentUser();
assertEquals(userName, login.getShortUserName());
String[] gi = login.getGroupNames();
assertEquals(groups.size(), gi.length);
for (int i = 0; i < gi.length; i++) {
assertEquals(groups.get(i), gi[i]);
}
final UserGroupInformation fakeUser = UserGroupInformation.createRemoteUser("foo.bar");
fakeUser.doAs(
new PrivilegedExceptionAction<Object>() {
@Override
public Object run() throws IOException {
UserGroupInformation current = UserGroupInformation.getCurrentUser();
assertFalse(current.equals(login));
assertEquals(current, fakeUser);
assertEquals(0, current.getGroupNames().length);
return null;
}
});
}
