mirror of https://gitee.com/bigwinds/arangodb
123 lines
3.9 KiB
C++
123 lines
3.9 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 "BlockFetcherHelper.h"
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#include "catch.hpp"
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#include "Aql/AqlItemBlock.h"
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#include "Aql/AqlItemBlockShell.h"
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#include "Aql/ConstFetcher.h"
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#include "Aql/ExecutionBlockImpl.h"
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#include "Aql/ExecutorInfos.h"
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#include "Aql/IdExecutor.h"
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#include "Aql/InputAqlItemRow.h"
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#include "Aql/ResourceUsage.h"
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#include "tests/Aql/BlockFetcherHelper.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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SCENARIO("IdExecutor", "[AQL][EXECUTOR][ID]") {
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ExecutionState state;
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ResourceMonitor monitor;
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AqlItemBlockManager itemBlockManager(&monitor);
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auto block = std::make_unique<AqlItemBlock>(&monitor, 1000, 1);
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auto outputRegisters = make_shared_unordered_set();
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auto registersToKeep = make_shared_unordered_set({0}); // this must be set correctly
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auto blockShell =
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std::make_shared<AqlItemBlockShell>(itemBlockManager, std::move(block));
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IdExecutorInfos infos(1 /*nrRegs*/, *registersToKeep /*toKeep*/, {} /*toClear*/);
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OutputAqlItemRow row{std::move(blockShell), outputRegisters, registersToKeep,
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infos.registersToClear()};
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GIVEN("there are no rows upstream") {
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WHEN("the producer does not wait") {
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ConstFetcherHelper fetcher(nullptr);
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IdExecutor testee(fetcher, infos);
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NoStats stats{};
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THEN("the executor should return DONE with no block produced") {
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std::tie(state, stats) = testee.produceRow(row);
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REQUIRE(state == ExecutionState::DONE);
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REQUIRE(!row.produced());
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}
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}
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}
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GIVEN("there are rows in the upstream") {
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auto input = VPackParser::fromJson("[ [true], [false], [true] ]");
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WHEN("the producer does not wait") {
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ConstFetcherHelper fetcher(input->buffer());
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IdExecutor testee(fetcher, infos);
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NoStats stats{};
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THEN("the executor should return the rows") {
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std::tie(state, stats) = testee.produceRow(row);
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REQUIRE(state == ExecutionState::HASMORE);
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REQUIRE(row.produced());
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row.advanceRow();
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std::tie(state, stats) = testee.produceRow(row);
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REQUIRE(state == ExecutionState::HASMORE);
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REQUIRE(row.produced());
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row.advanceRow();
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std::tie(state, stats) = testee.produceRow(row);
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REQUIRE(state == ExecutionState::DONE);
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REQUIRE(row.produced());
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row.advanceRow();
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AND_THEN("The output should stay stable") {
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std::tie(state, stats) = testee.produceRow(row);
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REQUIRE(state == ExecutionState::DONE);
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REQUIRE(!row.produced());
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}
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// verify result
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AqlValue value;
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auto block = row.stealBlock();
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for (std::size_t index = 0; index < 3; index++) {
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value = block->getValue(index, 0);
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REQUIRE(value.isBoolean());
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REQUIRE(value.toBoolean() == input->slice().at(index).at(0).getBool());
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}
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} // WHEN
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} // GIVEN
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} // GIVERN
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} // SCENARIO
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} // namespace aql
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} // namespace tests
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} // namespace arangodb
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