import org.mockito.MockitoAnnotations;

/**
 * Test class for KerberosCredentials.
 */
class KerberosCredentialsTest {

    @Mock
    private LoginContext loginContext;

    @Mock
    private Subject subject;

    @Mock
    private KerberosKey key1;

    @Mock
    private KerberosKey key2;

    private static final String LOGIN_CONTEXT_NAME = "TestLoginContext";
    private static final int KEY_TYPE_1 = 1;

        }

        try {
            log.debug("Logging on");
            LoginContext lc;

            Subject ps = super.getSubject();

            if (this.configuration != null) {
                lc = new LoginContext(this.serviceName, ps, this, this.configuration);
            } else if (ps != null) {
                lc = new LoginContext(this.serviceName, ps, this);
            } else {

     * @param loginContextName the name of the JAAS login context
     * @throws LoginException if authentication fails
     */
    public KerberosCredentials(String loginContextName) throws LoginException {
        LoginContext lc = new LoginContext(loginContextName);
        lc.login();
        this.subject = lc.getSubject();
    }

    /**
     * Retrieves all Kerberos keys from the authenticated subject.
     *

        JAASAuthenticator orig = new JAASAuthenticator(new HashMap<String, String>(), "DOM", "user", "pass");

        // Provide a Subject in super to drive a specific LoginContext constructor branch
        Subject presetSubject = new Subject();
        orig.setSubject(presetSubject);

        // Try to get a Subject, but handle the case where JAAS may not be configured