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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/slobrok/server/union_service_map.h>
#include <vespa/vespalib/gtest/gtest.h>
#include <vespa/vespalib/util/stringfmt.h>
using namespace vespalib;
using namespace slobrok;
using vespalib::make_string_short::fmt;
enum class Event { NONE, ADD, REMOVE, UPDATE };
struct MapObserver : public MapListener {
MapObserver();
virtual ~MapObserver();
void add(const ServiceMapping &mapping) override;
void remove(const ServiceMapping &mapping) override;
void update(const ServiceMapping &old_mapping,
const ServiceMapping &new_mapping) override;
Event last_event = Event::NONE;
ServiceMapping last_add = {{}, {}};
ServiceMapping last_remove = {{}, {}};
void clear() { last_event = Event::NONE; }
};
MapObserver::MapObserver() = default;
MapObserver::~MapObserver() = default;
void MapObserver::add(const ServiceMapping &mapping) {
last_event = Event::ADD;
last_add = mapping;
}
void MapObserver::remove(const ServiceMapping &mapping) {
last_event = Event::REMOVE;
last_remove = mapping;
}
void MapObserver::update(const ServiceMapping &old_mapping,
const ServiceMapping &new_mapping)
{
last_event = Event::UPDATE;
last_remove = old_mapping;
last_add = new_mapping;
}
TEST(UnionServiceMapTest, forwards_simple_requests) {
ProxyMapSource source;
UnionServiceMap unionizer;
MapObserver observer;
unionizer.registerListener(observer);
source.registerListener(unionizer);
EXPECT_EQ(observer.last_event, Event::NONE);
ServiceMapping one{"foo/1", "bar/1"};
source.add(one);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, one);
ServiceMapping two{"foo/2", "bar/2"};
source.add(two);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, two);
source.remove(one);
EXPECT_EQ(observer.last_event, Event::REMOVE);
EXPECT_EQ(observer.last_remove, one);
ServiceMapping two_q{"foo/2", "qux/2"};
source.update(two, two_q);
// update implemented ass remove+add:
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_remove, two);
EXPECT_EQ(observer.last_add, two_q);
}
TEST(UnionServiceMapTest, handles_refcount) {
ProxyMapSource source1;
ProxyMapSource source2;
ProxyMapSource source3;
UnionServiceMap unionizer;
MapObserver observer;
unionizer.registerListener(observer);
source1.registerListener(unionizer);
source2.registerListener(unionizer);
source3.registerListener(unionizer);
EXPECT_EQ(observer.last_event, Event::NONE);
ServiceMapping one{"foo/1", "bar/1"};
source1.add(one);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, one);
observer.clear();
EXPECT_EQ(observer.last_event, Event::NONE);
source2.add(one);
EXPECT_EQ(observer.last_event, Event::NONE);
source3.add(one);
EXPECT_EQ(observer.last_event, Event::NONE);
ServiceMapping two{"foo/2", "bar/2"};
source1.add(two);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, two);
observer.clear();
EXPECT_EQ(observer.last_event, Event::NONE);
source2.add(two);
EXPECT_EQ(observer.last_event, Event::NONE);
source1.remove(one);
EXPECT_EQ(observer.last_event, Event::NONE);
source2.remove(one);
EXPECT_EQ(observer.last_event, Event::NONE);
source1.remove(two);
EXPECT_EQ(observer.last_event, Event::NONE);
source2.remove(two);
EXPECT_EQ(observer.last_event, Event::REMOVE);
EXPECT_EQ(observer.last_remove, two);
observer.clear();
EXPECT_EQ(observer.last_event, Event::NONE);
source3.remove(one);
EXPECT_EQ(observer.last_event, Event::REMOVE);
EXPECT_EQ(observer.last_remove, one);
}
TEST(UnionServiceMapTest, handles_conflicts) {
ProxyMapSource source1;
ProxyMapSource source2;
ProxyMapSource source3;
UnionServiceMap unionizer;
MapObserver observer;
unionizer.registerListener(observer);
source1.registerListener(unionizer);
source2.registerListener(unionizer);
source3.registerListener(unionizer);
EXPECT_EQ(observer.last_event, Event::NONE);
ServiceMapping one{"foo/1", "bar/1"};
source1.add(one);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, one);
observer.clear();
source2.add(one);
EXPECT_EQ(observer.last_event, Event::NONE);
ServiceMapping two{"foo/2", "bar/2"};
source1.add(two);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, two);
observer.clear();
source2.add(two);
EXPECT_EQ(observer.last_event, Event::NONE);
ServiceMapping one_q{"foo/1", "qux/1"};
source3.add(one_q);
EXPECT_EQ(observer.last_event, Event::REMOVE);
EXPECT_EQ(observer.last_remove, one);
ServiceMapping two_q{"foo/2", "qux/2"};
source3.add(two_q);
EXPECT_EQ(observer.last_event, Event::REMOVE);
EXPECT_EQ(observer.last_remove, two);
source3.remove(one_q);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, one);
observer.clear();
source1.remove(two);
EXPECT_EQ(observer.last_event, Event::NONE);
source2.remove(two);
EXPECT_EQ(observer.last_event, Event::ADD);
EXPECT_EQ(observer.last_add, two_q);
}
GTEST_MAIN_RUN_ALL_TESTS()
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