@Test
public void build() {

	OAuthBearerTokenJwt jwt = new OAuthBearerTokenJwt("token", 1, 1, "User");
	Mockito.when(saslAuthenticationContext.server()).thenReturn(saslServer);
	Mockito.when(saslServer.getNegotiatedProperty("OAUTHBEARER.token")).thenReturn(jwt);
	CustomPrincipal customPrincipal = customPrincipalBuilder.build(saslAuthenticationContext);
	assertTrue(customPrincipal != null);
}