@Test
    public void testNullConnector() {
        val couchProfileService = new CouchProfileService(null);
        couchProfileService.setPasswordEncoder(PASSWORD_ENCODER);
        TestsHelper.expectException(couchProfileService::init, TechnicalException.class, "couchDbConnector cannot be null");
    }
Tests the {@link CouchProfileService}.

@author Elie Roux
@since 2.0.0
pac4j-couch/src/test/java/org/pac4j/couch/profile/service/CouchProfileServiceTests.java