mirror of https://gitee.com/bigwinds/arangodb
137 lines
4.7 KiB
C++
137 lines
4.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2018 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Christoph Uhde
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////////////////////////////////////////////////////////////////////////////////
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#include "RowFetcherHelper.h"
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#include "gtest/gtest.h"
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#include "Aql/AqlItemBlock.h"
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#include "Aql/ExecutorInfos.h"
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#include "Aql/InputAqlItemRow.h"
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#include "Aql/NoResultsExecutor.h"
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#include "Aql/OutputAqlItemRow.h"
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#include "Aql/ResourceUsage.h"
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#include "Aql/Stats.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb;
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using namespace arangodb::aql;
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namespace arangodb {
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namespace tests {
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namespace aql {
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class NoResultsExecutorTest : public ::testing::Test {
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protected:
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ExecutionState state;
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ResourceMonitor monitor;
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AqlItemBlockManager itemBlockManager;
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SharedAqlItemBlockPtr block;
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std::shared_ptr<std::unordered_set<RegisterId>> outputRegisters;
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std::shared_ptr<std::unordered_set<RegisterId>> registersToClear;
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std::shared_ptr<std::unordered_set<RegisterId>> registersToKeep;
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RegisterId inputRegister;
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ExecutorInfos infos;
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OutputAqlItemRow result;
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NoResultsExecutorTest()
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: itemBlockManager(&monitor, SerializationFormat::SHADOWROWS),
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block(new AqlItemBlock(itemBlockManager, 1000, 1)),
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outputRegisters(make_shared_unordered_set()),
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registersToClear(make_shared_unordered_set()),
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registersToKeep(make_shared_unordered_set()),
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inputRegister(0),
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infos(make_shared_unordered_set({0}), outputRegisters, 1 /*nr in*/,
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1 /*nr out*/, *registersToClear, *registersToKeep),
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result(std::move(block), outputRegisters, registersToKeep, registersToClear) {}
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};
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TEST_F(NoResultsExecutorTest, no_rows_upstream_the_producer_doesnt_wait) {
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VPackBuilder input;
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SingleRowFetcherHelper<::arangodb::aql::BlockPassthrough::Disable> fetcher(itemBlockManager, input.steal(), false);
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NoResultsExecutor testee(fetcher, infos);
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NoStats stats{};
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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}
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TEST_F(NoResultsExecutorTest, no_rows_upstream_the_producer_waits) {
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VPackBuilder input;
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SingleRowFetcherHelper<::arangodb::aql::BlockPassthrough::Disable> fetcher(itemBlockManager, input.steal(), true);
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NoResultsExecutor testee(fetcher, infos);
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NoStats stats{};
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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}
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TEST_F(NoResultsExecutorTest, rows_upstream_the_producer_doesnt_wait) {
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auto input = VPackParser::fromJson("[ [true], [false], [true] ]");
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SingleRowFetcherHelper<::arangodb::aql::BlockPassthrough::Disable> fetcher(itemBlockManager, input->steal(), false);
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NoResultsExecutor testee(fetcher, infos);
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NoStats stats{};
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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}
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TEST_F(NoResultsExecutorTest, rows_upstream_the_producer_waits) {
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auto input = VPackParser::fromJson("[ [true], [false], [true] ]");
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SingleRowFetcherHelper<::arangodb::aql::BlockPassthrough::Disable> fetcher(itemBlockManager, input->steal(), true);
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NoResultsExecutor testee(fetcher, infos);
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NoStats stats{};
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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std::tie(state, stats) = testee.produceRows(result);
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ASSERT_EQ(state, ExecutionState::DONE);
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ASSERT_FALSE(result.produced());
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ASSERT_EQ(fetcher.nrCalled(), 0);
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}
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} // namespace aql
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} // namespace tests
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} // namespace arangodb
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