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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vdstestlib/cppunit/macros.h>
#include <tests/distributor/messagesenderstub.h>
#include <tests/common/teststorageapp.h>
#include <vespa/storage/persistence/bucketownershipnotifier.h>
#include <vespa/document/test/make_document_bucket.h>
using document::test::makeDocumentBucket;
namespace storage {
class BucketOwnershipNotifierTest : public CppUnit::TestFixture
{
std::unique_ptr<TestServiceLayerApp> _app;
lib::ClusterState _clusterState;
public:
BucketOwnershipNotifierTest()
: _app(),
_clusterState("distributor:2 storage:1")
{}
void setUp() override;
CPPUNIT_TEST_SUITE(BucketOwnershipNotifierTest);
CPPUNIT_TEST(testSendNotifyBucketChangeIfOwningDistributorChanged);
CPPUNIT_TEST(testDoNotSendNotifyBucketChangeIfBucketOwnedByInitialSender);
CPPUNIT_TEST(testIgnoreIdealStateCalculationExceptions);
CPPUNIT_TEST(testGuardNotifyAlways);
CPPUNIT_TEST_SUITE_END();
bool ownsBucket(uint16_t distributorIndex,
const document::BucketId& bucket) const
{
uint16_t distributor = _app->getDistribution()->getIdealDistributorNode(
_clusterState, bucket);
return distributor == distributorIndex;
}
document::Bucket getFirstNonOwnedBucket() {
for (int i = 0; i < 1000; ++i) {
if (!ownsBucket(0, document::BucketId(16, i))) {
return makeDocumentBucket(document::BucketId(16, i));
}
}
return makeDocumentBucket(document::BucketId(0));
}
document::Bucket getFirstOwnedBucket() {
for (int i = 0; i < 1000; ++i) {
if (ownsBucket(0, document::BucketId(16, i))) {
return makeDocumentBucket(document::BucketId(16, i));
}
}
return makeDocumentBucket(document::BucketId(0));
}
void testSendNotifyBucketChangeIfOwningDistributorChanged();
void testDoNotSendNotifyBucketChangeIfBucketOwnedByInitialSender();
void testIgnoreIdealStateCalculationExceptions();
void testGuardNotifyAlways();
void doTestNotification(const document::Bucket &bucket,
const api::BucketInfo& info,
const std::string& wantedSend);
};
CPPUNIT_TEST_SUITE_REGISTRATION(BucketOwnershipNotifierTest);
void
BucketOwnershipNotifierTest::setUp()
{
_app.reset(new TestServiceLayerApp);
_app->setDistribution(Redundancy(1), NodeCount(2));
_app->setClusterState(_clusterState);
}
void
BucketOwnershipNotifierTest::doTestNotification(const document::Bucket &bucket,
const api::BucketInfo& info,
const std::string& wantedSend)
{
ServiceLayerComponent component(_app->getComponentRegister(), "dummy");
MessageSenderStub sender;
BucketOwnershipNotifier notifier(component, sender);
notifier.notifyIfOwnershipChanged(bucket, 0, info);
CPPUNIT_ASSERT_EQUAL(wantedSend, sender.getCommands(true, true));
}
void
BucketOwnershipNotifierTest::testSendNotifyBucketChangeIfOwningDistributorChanged()
{
api::BucketInfo info(0x1, 2, 3);
document::Bucket bucket(getFirstNonOwnedBucket());
CPPUNIT_ASSERT(bucket.getBucketId().getRawId() != 0);
std::ostringstream wanted;
wanted << "NotifyBucketChangeCommand("
<< bucket.getBucketId()
<< ", " << info
<< ") => 1";
doTestNotification(bucket, info, wanted.str());
}
void
BucketOwnershipNotifierTest::testDoNotSendNotifyBucketChangeIfBucketOwnedByInitialSender()
{
api::BucketInfo info(0x1, 2, 3);
document::Bucket bucket(getFirstOwnedBucket());
CPPUNIT_ASSERT(bucket.getBucketId().getRawId() != 0);
doTestNotification(bucket, info, "");
}
void
BucketOwnershipNotifierTest::testIgnoreIdealStateCalculationExceptions()
{
api::BucketInfo info(0x1, 2, 3);
document::Bucket bucket(getFirstNonOwnedBucket());
CPPUNIT_ASSERT(bucket.getBucketId().getRawId() != 0);
_app->setClusterState(lib::ClusterState("distributor:0 storage:1"));
doTestNotification(bucket, info, "");
}
void
BucketOwnershipNotifierTest::testGuardNotifyAlways()
{
ServiceLayerComponent component(_app->getComponentRegister(), "dummy");
MessageSenderStub sender;
BucketOwnershipNotifier notifier(component, sender);
std::ostringstream wanted;
{
NotificationGuard guard(notifier);
api::BucketInfo info(0x1, 2, 3);
document::Bucket bucket1(getFirstOwnedBucket());
guard.notifyAlways(bucket1, info);
document::Bucket bucket2(getFirstNonOwnedBucket());
guard.notifyAlways(bucket2, info);
wanted << "NotifyBucketChangeCommand("
<< bucket1.getBucketId()
<< ", " << info
<< ") => 0,"
<< "NotifyBucketChangeCommand("
<< bucket2.getBucketId()
<< ", " << info
<< ") => 1";
}
CPPUNIT_ASSERT_EQUAL(wanted.str(), sender.getCommands(true, true));
}
} // storage
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