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scylladb/test/boost/service_level_controller_test.cc
Eliran Sinvani 403db8e943 service level controller: Subscriber API unit test
Here we add a very simple unit test for the configuration
change API.
2021-08-16 11:38:59 +03:00

127 lines
4.4 KiB
C++

/*
* Copyright (C) 2021-present ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include <boost/test/unit_test.hpp>
#include <stdlib.h>
#include <iostream>
#include "seastarx.hh"
#include <seastar/testing/test_case.hh>
#include <seastar/testing/thread_test_case.hh>
#include <seastar/core/future-util.hh>
#include <algorithm>
#include "service/qos/service_level_controller.hh"
#include "service/qos/qos_configuration_change_subscriber.hh"
#include "auth/service.hh"
#include "utils/overloaded_functor.hh"
using namespace qos;
struct add_op {
sstring name;
service_level_options slo;
bool operator==(const add_op& other) const = default;
bool operator!=(const add_op& other) const = default;
};
struct remove_op {
sstring name;
bool operator==(const remove_op& other) const = default;
bool operator!=(const remove_op& other) const = default;
};
struct change_op {
sstring name;
service_level_options slo_before;
service_level_options slo_after;
bool operator==(const change_op& other) const = default;
bool operator!=(const change_op& other) const = default;
};
using service_level_op = std::variant<add_op, remove_op, change_op>;
struct qos_configuration_change_suscriber_simple : public qos_configuration_change_subscriber {
std::vector<service_level_op> ops;
virtual future<> on_before_service_level_add(sstring name, service_level_options slo) override {
ops.push_back(add_op{name, slo});
return make_ready_future<>();
}
virtual future<> on_after_service_level_remove(sstring name) override {
ops.push_back(remove_op{name});
return make_ready_future<>();
}
virtual future<> on_before_service_level_change(sstring name, service_level_options slo_before, service_level_options slo_after) override {
ops.push_back(change_op{name, slo_before, slo_after});
return make_ready_future<>();
}
};
std::ostream& operator<<(std::ostream& os, const add_op& op) {
return os << "Service Level: added '" << op.name << "' with " << op.slo.workload;
}
std::ostream& operator<<(std::ostream& os, const change_op& op) {
return os << "Service Level: changed '" << op.name << "' from " << op.slo_before.workload << " to " << op.slo_after.workload;
}
std::ostream& operator<<(std::ostream& os, const remove_op& op) {
return os << "Service Level: removed '" << op.name << "'";
}
std::ostream& operator<<(std::ostream& os, const service_level_op& op) {
std::visit(overloaded_functor {
[&os] (const add_op& op) { os << op; },
[&os] (const remove_op& op) { os << op; },
[&os] (const change_op& op) { os << op; },
}, op);
return os;
}
SEASTAR_THREAD_TEST_CASE(subscriber_simple) {
sharded<service_level_controller> sl_controller;
sharded<auth::service> auth_service;
sl_controller.start(std::ref(auth_service), service_level_options{}).get();
qos_configuration_change_suscriber_simple ccss;
sl_controller.local().register_subscriber(&ccss);
sl_controller.local().add_service_level("sl1", service_level_options{}).get();
sl_controller.local().add_service_level("sl2", service_level_options{}).get();
service_level_options slo;
slo.workload = service_level_options::workload_type::interactive;
sl_controller.local().add_service_level("sl1", slo).get();
sl_controller.local().remove_service_level("sl2", false).get();
std::vector<service_level_op> expected_result = {
add_op{"sl1", service_level_options{}},
add_op{"sl2", service_level_options{}},
change_op{"sl1", service_level_options{}, slo},
remove_op{"sl2"},
};
sl_controller.local().unregister_subscriber(&ccss).get();
BOOST_REQUIRE_EQUAL(ccss.ops, expected_result);
sl_controller.stop().get();
}