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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/storage/distributor/throttlingoperationstarter.h>
#include <tests/distributor/maintenancemocks.h>
#include <vespa/document/test/make_document_bucket.h>
#include <vespa/vespalib/gtest/gtest.h>
namespace storage::distributor {
using document::BucketId;
using document::test::makeDocumentBucket;
using namespace ::testing;
namespace {
const MockOperation& as_mock_operation(const Operation& operation) {
return dynamic_cast<const MockOperation&>(operation);
}
}
struct ThrottlingOperationStarterTest : Test {
std::shared_ptr<Operation> createMockOperation() {
return std::make_shared<MockOperation>(makeDocumentBucket(BucketId(16, 1)));
}
std::unique_ptr<MockOperationStarter> _starterImpl;
std::unique_ptr<ThrottlingOperationStarter> _operationStarter;
void SetUp() override;
void TearDown() override;
};
void
ThrottlingOperationStarterTest::SetUp()
{
_starterImpl = std::make_unique<MockOperationStarter>();
_operationStarter = std::make_unique<ThrottlingOperationStarter>(*_starterImpl);
}
void
ThrottlingOperationStarterTest::TearDown()
{
// Must clear before _operationStarter goes out of scope, or operation
// destructors will try to call method on destroyed object.
_starterImpl->getOperations().clear();
}
TEST_F(ThrottlingOperationStarterTest, operation_not_throttled_when_slot_available) {
auto operation = createMockOperation();
EXPECT_TRUE(_operationStarter->start(operation, OperationStarter::Priority(0)));
EXPECT_FALSE(as_mock_operation(*operation).get_was_throttled());
}
TEST_F(ThrottlingOperationStarterTest, operation_starting_is_forwarded_to_implementation) {
ASSERT_TRUE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(0)));
EXPECT_EQ("Bucket(BucketSpace(0x0000000000000001), BucketId(0x4000000000000001)), pri 0\n",
_starterImpl->toString());
}
TEST_F(ThrottlingOperationStarterTest, operation_throttled_when_no_available_slots) {
_operationStarter->setMaxPendingRange(0, 0);
auto operation = createMockOperation();
EXPECT_FALSE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(0)));
EXPECT_FALSE(_operationStarter->start(operation, OperationStarter::Priority(0)));
EXPECT_TRUE(as_mock_operation(*operation).get_was_throttled());
}
TEST_F(ThrottlingOperationStarterTest, throttling_with_max_pending_range) {
_operationStarter->setMaxPendingRange(0, 1);
EXPECT_FALSE(_operationStarter->canStart(0, OperationStarter::Priority(255)));
EXPECT_TRUE(_operationStarter->canStart(0, OperationStarter::Priority(0)));
_operationStarter->setMaxPendingRange(1, 1);
EXPECT_TRUE(_operationStarter->canStart(0, OperationStarter::Priority(255)));
EXPECT_TRUE(_operationStarter->canStart(0, OperationStarter::Priority(0)));
_operationStarter->setMaxPendingRange(1, 3);
EXPECT_FALSE(_operationStarter->canStart(1, OperationStarter::Priority(255)));
EXPECT_TRUE(_operationStarter->canStart(1, OperationStarter::Priority(100)));
EXPECT_TRUE(_operationStarter->canStart(1, OperationStarter::Priority(0)));
EXPECT_TRUE(_operationStarter->canStart(2, OperationStarter::Priority(0)));
EXPECT_FALSE(_operationStarter->canStart(3, OperationStarter::Priority(0)));
EXPECT_FALSE(_operationStarter->canStart(4, OperationStarter::Priority(0)));
}
TEST_F(ThrottlingOperationStarterTest, starting_operations_fills_up_pending_window) {
_operationStarter->setMaxPendingRange(1, 3);
EXPECT_TRUE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(255)));
EXPECT_TRUE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(255)));
EXPECT_FALSE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(255)));
EXPECT_FALSE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(255)));
EXPECT_TRUE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(100)));
EXPECT_TRUE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(100)));
EXPECT_FALSE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(255)));
EXPECT_FALSE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(100)));
EXPECT_TRUE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(0)));
EXPECT_TRUE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(0)));
EXPECT_FALSE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(0)));
EXPECT_FALSE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(0)));
}
TEST_F(ThrottlingOperationStarterTest, finishing_operations_allows_more_to_start) {
_operationStarter->setMaxPendingRange(1, 1);
EXPECT_TRUE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(255)));
EXPECT_FALSE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(255)));
EXPECT_FALSE(_starterImpl->getOperations().empty());
_starterImpl->getOperations().pop_back();
EXPECT_TRUE(_operationStarter->may_allow_operation_with_priority(OperationStarter::Priority(255)));
EXPECT_TRUE(_operationStarter->start(createMockOperation(), OperationStarter::Priority(255)));
EXPECT_FALSE(_starterImpl->getOperations().empty());
}
}
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