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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/slobrok/server/service_map_history.h>
#include <vespa/vespalib/gtest/gtest.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <map>
using namespace vespalib;
using namespace slobrok;
using vespalib::make_string_short::fmt;
using Map = std::map<vespalib::string, vespalib::string>;
struct Dumper : ServiceMapHistory::DiffCompletionHandler {
std::unique_ptr<MapDiff> got = {};
void handle(MapDiff diff) override {
got = std::make_unique<MapDiff>(std::move(diff));
}
};
MapDiff diffGen(ServiceMapHistory &history, uint32_t gen) {
Dumper dumper;
history.asyncGenerationDiff(&dumper, GenCnt(gen));
EXPECT_TRUE(dumper.got);
return std::move(*dumper.got);
}
Map dump(ServiceMapHistory &history) {
MapDiff full = diffGen(history, 0);
EXPECT_TRUE(full.is_full_dump());
Map result;
for (const auto & [ k, v ] : full.updated) {
result[k] = v;
}
return result;
}
vespalib::string lookup(ServiceMapHistory &history, const vespalib::string &name) {
auto map = dump(history);
auto iter = map.find(name);
if (iter == map.end()) {
return {};
} else {
return iter->second;
}
}
TEST(ServiceMapHistoryTest, empty_inspection) {
ServiceMapHistory p;
auto bar = dump(p);
EXPECT_TRUE(bar.empty());
auto gen = p.currentGen();
EXPECT_EQ(gen, GenCnt(1));
Dumper dumper;
{
ServiceMapHistory empty2;
empty2.asyncGenerationDiff(&dumper, gen);
}
EXPECT_TRUE(dumper.got);
auto diff1 = std::move(*dumper.got);
EXPECT_FALSE(diff1.is_full_dump());
EXPECT_EQ(diff1.fromGen, gen);
EXPECT_TRUE(diff1.removed.empty());
EXPECT_TRUE(diff1.updated.empty());
EXPECT_EQ(diff1.toGen, gen);
auto diff2 = diffGen(p, 42);
EXPECT_TRUE(diff2.is_full_dump());
EXPECT_EQ(diff2.fromGen, GenCnt(0));
EXPECT_TRUE(diff2.removed.empty());
EXPECT_TRUE(diff2.updated.empty());
EXPECT_EQ(diff2.toGen, gen);
auto diff3 = diffGen(p, 0);
EXPECT_TRUE(diff3.is_full_dump());
EXPECT_EQ(diff3.fromGen, GenCnt(0));
EXPECT_TRUE(diff3.removed.empty());
EXPECT_TRUE(diff3.updated.empty());
EXPECT_EQ(diff3.toGen, gen);
}
TEST(ServiceMapHistoryTest, full_inspection) {
Dumper dumper;
{
ServiceMapHistory p;
for (int i = 0; i < 1984; ++i) {
auto name = fmt("key/%d/name", i);
auto spec = fmt("tcp/host%d.domain.tld:19099", 10000+i);
p.add(ServiceMapping{name, spec});
}
EXPECT_EQ(p.currentGen(), GenCnt(1985));
p.remove(ServiceMapping{"key/666/name", "tcp/host10666.domain.tld:19099"});
EXPECT_EQ(p.currentGen(), GenCnt(1986));
p.add(ServiceMapping{"key/1969/name", "tcp/woodstock:19069"});
EXPECT_EQ(p.currentGen(), GenCnt(1987));
auto map = dump(p);
EXPECT_FALSE(map.contains("foo"));
EXPECT_TRUE(map.contains("key/0/name"));
EXPECT_FALSE(map.contains("key/666/name"));
EXPECT_TRUE(map.contains("key/1983/name"));
EXPECT_FALSE(map.contains("key/1984/name"));
EXPECT_TRUE(map.contains("key/1969/name"));
auto foo = map["key/0/name"];
EXPECT_EQ(foo, "tcp/host10000.domain.tld:19099");
foo = map["key/123/name"];
EXPECT_EQ(foo, "tcp/host10123.domain.tld:19099");
foo = map["key/1983/name"];
EXPECT_EQ(foo, "tcp/host11983.domain.tld:19099");
foo = map["key/1969/name"];
EXPECT_EQ(foo, "tcp/woodstock:19069");
EXPECT_EQ(map.size(), 1983ul);
auto gen = p.currentGen();
auto diff2 = diffGen(p, 42);
EXPECT_TRUE(diff2.is_full_dump());
EXPECT_EQ(diff2.fromGen, GenCnt(0));
EXPECT_TRUE(diff2.removed.empty());
EXPECT_EQ(diff2.updated.size(), 1983ul);
EXPECT_EQ(diff2.toGen, gen);
auto diff3 = diffGen(p, 1984);
EXPECT_FALSE(diff3.is_full_dump());
EXPECT_EQ(diff3.fromGen, GenCnt(1984));
EXPECT_EQ(diff3.removed.size(), 1ul);
EXPECT_EQ(diff3.updated.size(), 2ul);
EXPECT_EQ(diff3.toGen, gen);
p.asyncGenerationDiff(&dumper, gen);
EXPECT_FALSE(dumper.got);
}
EXPECT_TRUE(dumper.got);
auto diff1 = std::move(*dumper.got);
EXPECT_EQ(diff1.fromGen, GenCnt(1987));
EXPECT_TRUE(diff1.removed.empty());
EXPECT_TRUE(diff1.updated.empty());
EXPECT_EQ(diff1.toGen, GenCnt(1987));
EXPECT_FALSE(diff1.is_full_dump());
}
class MockListener : public ServiceMapHistory::DiffCompletionHandler {
public:
bool got_update = false;
GenCnt got_gen = GenCnt(0);
size_t got_removes = 0;
size_t got_updates = 0;
void handle(MapDiff diff) override {
got_update = true;
got_gen = diff.toGen;
got_removes = diff.removed.size();
got_updates = diff.updated.size();
}
~MockListener() override;
};
MockListener::~MockListener() = default;
TEST(ServiceMapHistoryTest, handlers_test) {
MockListener handler1;
MockListener handler2;
MockListener handler3;
MockListener handler4;
MockListener handler5;
{
ServiceMapHistory p;
p.asyncGenerationDiff(&handler1, GenCnt(0));
p.asyncGenerationDiff(&handler2, GenCnt(1));
EXPECT_TRUE(handler1.got_update);
EXPECT_FALSE(handler2.got_update);
EXPECT_FALSE(handler3.got_update);
EXPECT_EQ(handler1.got_gen, GenCnt(1));
EXPECT_EQ(handler1.got_removes, 0ul);
EXPECT_EQ(handler1.got_updates, 0ul);
bool cantCancel = p.cancel(&handler1);
EXPECT_FALSE(cantCancel);
handler1.got_update = false;
p.add(ServiceMapping{"foo", "bar"});
EXPECT_FALSE(handler1.got_update);
EXPECT_TRUE(handler2.got_update);
EXPECT_FALSE(handler3.got_update);
EXPECT_EQ(handler2.got_removes, 0ul);
EXPECT_EQ(handler2.got_updates, 1ul);
handler2.got_update = false;
p.asyncGenerationDiff(&handler3, GenCnt(2));
EXPECT_FALSE(handler3.got_update);
p.remove(ServiceMapping{"foo", "bar"});
EXPECT_FALSE(handler1.got_update);
EXPECT_FALSE(handler2.got_update);
EXPECT_TRUE(handler3.got_update);
EXPECT_EQ(handler3.got_removes, 1ul);
EXPECT_EQ(handler3.got_updates, 0ul);
p.asyncGenerationDiff(&handler4, GenCnt(3));
EXPECT_FALSE(handler4.got_update);
p.asyncGenerationDiff(&handler5, GenCnt(3));
EXPECT_FALSE(handler5.got_update);
bool couldCancel = p.cancel(&handler4);
EXPECT_TRUE(couldCancel);
handler1.got_update = false;
handler2.got_update = false;
handler3.got_update = false;
}
EXPECT_FALSE(handler1.got_update);
EXPECT_FALSE(handler2.got_update);
EXPECT_FALSE(handler3.got_update);
EXPECT_FALSE(handler4.got_update);
EXPECT_TRUE(handler5.got_update);
EXPECT_EQ(handler5.got_removes, 0ul);
EXPECT_EQ(handler5.got_updates, 0ul);
}
GTEST_MAIN_RUN_ALL_TESTS()
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