def METHOD_NAME():
    krb5 = AllKrb5Conf(
        [Krb5Configuration(context_wrap(KRB5_CONF, path="/etc/krb5.conf"))]
    )
    sssd = SSSD_Config(context_wrap(SSSD_CONF, path="/etc/sssd/sssd.conf"))
    redhat_release = RedhatRelease(context_wrap(REDHAT_RELEASE_RHEL))
    rpms_client = InstalledRpms(context_wrap(IPA_RPMS_CLIENT))
    ipa_conf = IPAConfig(context_wrap(IPA_DEFAULT_CONF, path="/etc/ipa/default.conf"))
    ipa = IPA(ipa_conf, sssd, rpms_client, redhat_release)
    identity_domain = IdentityDomain(sssd, krb5, ipa, None)
    assert identity_domain.domains == [
        AD_SSSD_DOMAIN,
        IPA_DOMAIN,
        KERBEROS_LDAP_DOMAIN,
        LDAP_DOMAIN,
        KERBEROS_DOMAIN,
    ]
    assert identity_domain.default_realm == "IPA.TEST"
    assert identity_domain.dns_lookup_kdc is True
    assert identity_domain.dns_lookup_realm is False