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arangodb/tests/Aql/SingleRowFetcherTest.cpp

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////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2018 ArangoDB GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Tobias Gödderz
/// @author Michael Hackstein
/// @author Heiko Kernbach
/// @author Jan Christoph Uhde
////////////////////////////////////////////////////////////////////////////////
#include "AqlItemBlockHelper.h"
#include "DependencyProxyMock.h"
#include "RowFetcherHelper.h"
#include "gtest/gtest.h"
#include "Aql/AqlItemBlock.h"
#include "Aql/DependencyProxy.h"
#include "Aql/ExecutionBlock.h"
#include "Aql/ExecutorInfos.h"
#include "Aql/FilterExecutor.h"
#include "Aql/InputAqlItemRow.h"
#include "Aql/ResourceUsage.h"
#include "Aql/SingleRowFetcher.h"
#include "FetcherTestHelper.h"
#include <velocypack/Builder.h>
#include <velocypack/velocypack-aliases.h>
using namespace arangodb;
using namespace arangodb::aql;
namespace arangodb {
namespace tests {
namespace aql {
// TODO check that blocks are not returned to early (e.g. not before the next row
// is fetched)
// TODO check that, for SingleRowFetcher<true>, blocks are reposited (passed through) immediately
// after they have been fetched
class SingleRowFetcherTestPassBlocks : public ::testing::Test {
protected:
ResourceMonitor monitor;
AqlItemBlockManager itemBlockManager;
ExecutionState state;
static constexpr ::arangodb::aql::BlockPassthrough passBlocksThrough =
::arangodb::aql::BlockPassthrough::Enable;
SingleRowFetcherTestPassBlocks()
: itemBlockManager(&monitor, SerializationFormat::SHADOWROWS) {}
};
class SingleRowFetcherTestDoNotPassBlocks : public ::testing::Test {
protected:
ResourceMonitor monitor;
AqlItemBlockManager itemBlockManager;
ExecutionState state;
static constexpr ::arangodb::aql::BlockPassthrough passBlocksThrough =
::arangodb::aql::BlockPassthrough::Disable;
SingleRowFetcherTestDoNotPassBlocks()
: itemBlockManager(&monitor, SerializationFormat::SHADOWROWS) {}
};
TEST_F(SingleRowFetcherTestPassBlocks, there_are_no_blocks_upstream_the_producer_doesnt_wait) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 0};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
dependencyProxyMock.shouldReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestPassBlocks, there_are_blocks_upstream_the_producer_waits) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 0};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 2);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks, there_are_blocks_upstream_the_producer_waits) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 0};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 2);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks, handling_of_relevant_shadow_rows) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ShadowAqlItemRow shadow{CreateInvalidShadowRowHint{}};
{
SharedAqlItemBlockPtr block{new AqlItemBlock(itemBlockManager, 4, 1)};
block->emplaceValue(0, 0, "a");
block->setShadowRowDepth(1, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(1, 0, "a");
block->emplaceValue(2, 0, "b");
block->setShadowRowDepth(3, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(3, 0, "b");
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
}
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("a"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_TRUE(shadow.isRelevant());
// Will stay on HASMORE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
EXPECT_FALSE(shadow.isInitialized());
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("b"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_TRUE(shadow.isRelevant());
// Will stay on DONE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(shadow.isInitialized());
// Will not produce data row
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks, handling_of_irrelevant_shadow_rows) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ShadowAqlItemRow shadow{CreateInvalidShadowRowHint{}};
{
SharedAqlItemBlockPtr block{new AqlItemBlock(itemBlockManager, 7, 1)};
block->emplaceValue(0, 0, "a");
block->setShadowRowDepth(1, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(1, 0, "a");
block->setShadowRowDepth(2, AqlValue(AqlValueHintUInt(1ull)));
block->emplaceValue(2, 0, "a");
// Back to top level
block->emplaceValue(3, 0, "b");
block->setShadowRowDepth(4, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(4, 0, "b");
block->setShadowRowDepth(5, AqlValue(AqlValueHintUInt(1ull)));
block->emplaceValue(5, 0, "b");
block->setShadowRowDepth(6, AqlValue(AqlValueHintUInt(2ull)));
block->emplaceValue(6, 0, "b");
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
}
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("a"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_TRUE(shadow.isRelevant());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_FALSE(shadow.isRelevant());
// Will stay on HASMORE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
EXPECT_FALSE(shadow.isInitialized());
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("b"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_TRUE(shadow.isRelevant());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_FALSE(shadow.isRelevant());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_FALSE(shadow.isRelevant());
// Will stay on DONE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(shadow.isInitialized());
// Will not produce data row
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks, handling_consecutive_shadowrows) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ShadowAqlItemRow shadow{CreateInvalidShadowRowHint{}};
{
SharedAqlItemBlockPtr block{new AqlItemBlock(itemBlockManager, 4, 1)};
block->emplaceValue(0, 0, "a");
block->setShadowRowDepth(0, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(1, 0, "a");
block->setShadowRowDepth(1, AqlValue(AqlValueHintUInt(1ull)));
block->emplaceValue(2, 0, "b");
block->setShadowRowDepth(2, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(3, 0, "c");
block->setShadowRowDepth(3, AqlValue(AqlValueHintUInt(0ull)));
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
}
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
// First no data row
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// but shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_TRUE(shadow.isRelevant());
// Second, non-relevant shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_FALSE(shadow.isRelevant());
// Third, relevant shadow row.
// We cannot continue fetching shadowrows now.
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_FALSE(shadow.isInitialized());
// Require to fetch one data-row (done, empty)
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Now we can continue to fetch shadowrows
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_TRUE(shadow.isRelevant());
// We cannot continue fetching shadowrows now.
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_FALSE(shadow.isInitialized());
// Require to fetch one data-row (done, empty)
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Now we can continue to fetch shadowrows
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("c"));
EXPECT_TRUE(shadow.isRelevant());
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Will stay on done
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(shadow.isInitialized());
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestPassBlocks,
single_upstream_block_with_a_single_row_producer_returns_done_immediately) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks,
single_upstream_block_with_a_single_row_producer_returns_done_immediately) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestPassBlocks,
single_upstream_block_with_a_single_row_producer_returns_hasmore_then_done_with_a_nullptr) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::HASMORE, std::move(block))
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 2);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks,
single_upstream_block_with_a_single_row_producer_returns_hasmore_then_done_with_a_nullptr) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::HASMORE, std::move(block))
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 2);
}
TEST_F(SingleRowFetcherTestPassBlocks,
single_upstream_block_with_a_single_row_producer_waits_then_returns_done) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, std::move(block));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 2);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks,
single_upstream_block_with_a_single_row_producer_waits_then_returns_done) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, std::move(block));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 2);
}
TEST_F(SingleRowFetcherTestPassBlocks,
single_upstream_bock_with_a_single_row_producer_waits_returns_hasmore_then_done) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block))
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 3);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks,
single_upstream_bock_with_a_single_row_producer_waits_returns_hasmore_then_done) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block))
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), 42);
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 3);
}
// TODO the following tests should be simplified, a simple output
// specification should be compared with the actual output.
TEST_F(SingleRowFetcherTestPassBlocks, multiple_blocks_upstream_producer_doesnt_wait) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
// three 1-column matrices with 3, 2 and 1 rows, respectively
SharedAqlItemBlockPtr block1 = buildBlock<1>(itemBlockManager, {{{1}}, {{2}}, {{3}}}),
block2 = buildBlock<1>(itemBlockManager, {{{4}}, {{5}}}),
block3 = buildBlock<1>(itemBlockManager, {{{6}}});
dependencyProxyMock.shouldReturn(ExecutionState::HASMORE, std::move(block1))
.andThenReturn(ExecutionState::HASMORE, std::move(block2))
.andThenReturn(ExecutionState::DONE, std::move(block3));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
int64_t rowIdxAndValue;
for (rowIdxAndValue = 1; rowIdxAndValue <= 5; rowIdxAndValue++) {
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
}
rowIdxAndValue = 6;
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 3);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks, multiple_blocks_upstream_producer_doesnt_wait) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
// three 1-column matrices with 3, 2 and 1 rows, respectively
SharedAqlItemBlockPtr block1 = buildBlock<1>(itemBlockManager, {{{1}}, {{2}}, {{3}}}),
block2 = buildBlock<1>(itemBlockManager, {{{4}}, {{5}}}),
block3 = buildBlock<1>(itemBlockManager, {{{6}}});
dependencyProxyMock.shouldReturn(ExecutionState::HASMORE, std::move(block1))
.andThenReturn(ExecutionState::HASMORE, std::move(block2))
.andThenReturn(ExecutionState::DONE, std::move(block3));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
int64_t rowIdxAndValue;
for (rowIdxAndValue = 1; rowIdxAndValue <= 5; rowIdxAndValue++) {
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
}
rowIdxAndValue = 6;
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 3);
}
TEST_F(SingleRowFetcherTestPassBlocks, multiple_blocks_upstream_producer_waits) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
// three 1-column matrices with 3, 2 and 1 rows, respectively
SharedAqlItemBlockPtr block1 = buildBlock<1>(itemBlockManager, {{{1}}, {{2}}, {{3}}}),
block2 = buildBlock<1>(itemBlockManager, {{{4}}, {{5}}}),
block3 = buildBlock<1>(itemBlockManager, {{{6}}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block1))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block2))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, std::move(block3));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
int rowIdxAndValue;
for (rowIdxAndValue = 1; rowIdxAndValue <= 5; rowIdxAndValue++) {
if (rowIdxAndValue == 1 || rowIdxAndValue == 4) {
// wait at the beginning of the 1st and 2nd block
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
}
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
}
rowIdxAndValue = 6;
// wait at the beginning of the 3rd block
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
// last row and DONE
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 6);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks, multiple_blocks_upstream_producer_waits) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
// three 1-column matrices with 3, 2 and 1 rows, respectively
SharedAqlItemBlockPtr block1 = buildBlock<1>(itemBlockManager, {{{1}}, {{2}}, {{3}}}),
block2 = buildBlock<1>(itemBlockManager, {{{4}}, {{5}}}),
block3 = buildBlock<1>(itemBlockManager, {{{6}}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block1))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block2))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, std::move(block3));
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
int rowIdxAndValue;
for (rowIdxAndValue = 1; rowIdxAndValue <= 5; rowIdxAndValue++) {
if (rowIdxAndValue == 1 || rowIdxAndValue == 4) {
// wait at the beginning of the 1st and 2nd block
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
}
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
}
rowIdxAndValue = 6;
// wait at the beginning of the 3rd block
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
// last row and DONE
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 6);
}
TEST_F(SingleRowFetcherTestPassBlocks,
multiple_blocks_upstream_producer_waits_and_does_not_return_done) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
// three 1-column matrices with 3, 2 and 1 rows, respectively
SharedAqlItemBlockPtr block1 = buildBlock<1>(itemBlockManager, {{{1}}, {{2}}, {{3}}}),
block2 = buildBlock<1>(itemBlockManager, {{{4}}, {{5}}}),
block3 = buildBlock<1>(itemBlockManager, {{{6}}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block1))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block2))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block3))
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
for (int rowIdxAndValue = 1; rowIdxAndValue <= 6; rowIdxAndValue++) {
if (rowIdxAndValue == 1 || rowIdxAndValue == 4 || rowIdxAndValue == 6) {
// wait at the beginning of the 1st, 2nd and 3rd block
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
}
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
}
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 7);
}
TEST_F(SingleRowFetcherTestDoNotPassBlocks,
multiple_blocks_upstream_producer_waits_and_does_not_return_done) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
// three 1-column matrices with 3, 2 and 1 rows, respectively
SharedAqlItemBlockPtr block1 = buildBlock<1>(itemBlockManager, {{{1}}, {{2}}, {{3}}}),
block2 = buildBlock<1>(itemBlockManager, {{{4}}, {{5}}}),
block3 = buildBlock<1>(itemBlockManager, {{{6}}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block1))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block2))
.andThenReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block3))
.andThenReturn(ExecutionState::DONE, nullptr);
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
for (int rowIdxAndValue = 1; rowIdxAndValue <= 6; rowIdxAndValue++) {
if (rowIdxAndValue == 1 || rowIdxAndValue == 4 || rowIdxAndValue == 6) {
// wait at the beginning of the 1st, 2nd and 3rd block
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::WAITING);
ASSERT_FALSE(row);
}
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(row);
ASSERT_EQ(row.getNrRegisters(), 1);
ASSERT_EQ(row.getValue(0).slice().getInt(), rowIdxAndValue);
}
std::tie(state, row) = testee.fetchRow();
ASSERT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 7);
}
TEST_F(SingleRowFetcherTestPassBlocks, handling_of_relevant_shadow_rows) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ShadowAqlItemRow shadow{CreateInvalidShadowRowHint{}};
{
SharedAqlItemBlockPtr block{new AqlItemBlock(itemBlockManager, 4, 1)};
block->emplaceValue(0, 0, "a");
block->setShadowRowDepth(1, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(1, 0, "a");
block->emplaceValue(2, 0, "b");
block->setShadowRowDepth(3, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(3, 0, "b");
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
}
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("a"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_TRUE(shadow.isRelevant());
// Will stay on HASMORE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
EXPECT_FALSE(shadow.isInitialized());
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("b"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_TRUE(shadow.isRelevant());
// Will stay on DONE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(shadow.isInitialized());
// Will not produce data row
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestPassBlocks, handling_of_irrelevant_shadow_rows) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ShadowAqlItemRow shadow{CreateInvalidShadowRowHint{}};
{
SharedAqlItemBlockPtr block{new AqlItemBlock(itemBlockManager, 7, 1)};
block->emplaceValue(0, 0, "a");
block->setShadowRowDepth(1, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(1, 0, "a");
block->setShadowRowDepth(2, AqlValue(AqlValueHintUInt(1ull)));
block->emplaceValue(2, 0, "a");
// Back to top level
block->emplaceValue(3, 0, "b");
block->setShadowRowDepth(4, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(4, 0, "b");
block->setShadowRowDepth(5, AqlValue(AqlValueHintUInt(1ull)));
block->emplaceValue(5, 0, "b");
block->setShadowRowDepth(6, AqlValue(AqlValueHintUInt(2ull)));
block->emplaceValue(6, 0, "b");
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
}
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("a"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_TRUE(shadow.isRelevant());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_FALSE(shadow.isRelevant());
// Will stay on HASMORE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
EXPECT_FALSE(shadow.isInitialized());
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString("b"));
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_TRUE(shadow.isRelevant());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_FALSE(shadow.isRelevant());
// Can fetch shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_FALSE(shadow.isRelevant());
// Will stay on DONE
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(shadow.isInitialized());
// Will not produce data row
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
TEST_F(SingleRowFetcherTestPassBlocks, handling_consecutive_shadowrows) {
DependencyProxyMock<passBlocksThrough> dependencyProxyMock{monitor, 1};
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ShadowAqlItemRow shadow{CreateInvalidShadowRowHint{}};
{
SharedAqlItemBlockPtr block{new AqlItemBlock(itemBlockManager, 4, 1)};
block->emplaceValue(0, 0, "a");
block->setShadowRowDepth(0, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(1, 0, "a");
block->setShadowRowDepth(1, AqlValue(AqlValueHintUInt(1ull)));
block->emplaceValue(2, 0, "b");
block->setShadowRowDepth(2, AqlValue(AqlValueHintUInt(0ull)));
block->emplaceValue(3, 0, "c");
block->setShadowRowDepth(3, AqlValue(AqlValueHintUInt(0ull)));
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
}
{
SingleRowFetcher<passBlocksThrough> testee(dependencyProxyMock);
// First no data row
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// but shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_TRUE(shadow.isRelevant());
// Second, non-relevant shadow row
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("a"));
EXPECT_FALSE(shadow.isRelevant());
// Third, relevant shadow row.
// We cannot continue fetching shadowrows now.
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_FALSE(shadow.isInitialized());
// Require to fetch one data-row (done, empty)
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Now we can continue to fetch shadowrows
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("b"));
EXPECT_TRUE(shadow.isRelevant());
// We cannot continue fetching shadowrows now.
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::HASMORE);
ASSERT_FALSE(shadow.isInitialized());
// Require to fetch one data-row (done, empty)
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Now we can continue to fetch shadowrows
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_TRUE(shadow.isInitialized());
EXPECT_TRUE(shadow.getValue(0).slice().isEqualString("c"));
EXPECT_TRUE(shadow.isRelevant());
// Will stay on done
std::tie(state, row) = testee.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(row.isInitialized());
// Will stay on done
std::tie(state, shadow) = testee.fetchShadowRow();
EXPECT_EQ(state, ExecutionState::DONE);
EXPECT_FALSE(shadow.isInitialized());
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_EQ(dependencyProxyMock.numFetchBlockCalls(), 1);
}
class SingleRowFetcherWrapper
: public fetcherHelper::PatternTestWrapper<SingleRowFetcher<::arangodb::aql::BlockPassthrough::Disable>> {
public:
SingleRowFetcherWrapper() : PatternTestWrapper() {}
void PullAndAssertDataRows(std::vector<std::string> const& dataResults) override {
InputAqlItemRow row{CreateInvalidInputRowHint{}};
ExecutionState state = ExecutionState::HASMORE;
// Fetch all rows until done
for (auto const& it : dataResults) {
std::tie(state, row) = _fetcher.fetchRow();
if (it != dataResults.back()) {
EXPECT_EQ(state, ExecutionState::HASMORE);
}
// We cannot guarantee the DONE case on end, as we potentially need to fetch from upstream
ASSERT_TRUE(row.isInitialized());
EXPECT_TRUE(row.getValue(0).slice().isEqualString(it));
}
// Now assert that we will forever stay in the DONE state and do not move on.
std::tie(state, row) = _fetcher.fetchRow();
EXPECT_EQ(state, ExecutionState::DONE);
ASSERT_FALSE(row.isInitialized());
}
};
TEST_SHADOWROW_PATTERN_1(SingleRowFetcherWrapper, SingleRowFetcherPattern1Test);
TEST_SHADOWROW_PATTERN_2(SingleRowFetcherWrapper, SingleRowFetcherPattern2Test);
TEST_SHADOWROW_PATTERN_3(SingleRowFetcherWrapper, SingleRowFetcherPattern3Test);
TEST_SHADOWROW_PATTERN_4(SingleRowFetcherWrapper, SingleRowFetcherPattern4Test);
TEST_SHADOWROW_PATTERN_5(SingleRowFetcherWrapper, SingleRowFetcherPattern5Test);
TEST_SHADOWROW_PATTERN_6(SingleRowFetcherWrapper, SingleRowFetcherPattern6Test);
} // namespace aql
} // namespace tests
} // namespace arangodb