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arangodb/tests/Aql/AllRowsFetcherTest.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 "gtest/gtest.h"
#include "Aql/AllRowsFetcher.h"
#include "Aql/InputAqlItemRow.h"
using namespace arangodb;
using namespace arangodb::aql;
namespace arangodb {
namespace tests {
namespace aql {
class AllRowsFetcherTest : public ::testing::Test {
protected:
ExecutionState state;
AqlItemMatrix const* matrix = nullptr;
VPackBuilder input;
ResourceMonitor monitor;
};
TEST_F(AllRowsFetcherTest, no_blocks_upstream_the_producer_does_not_wait) {
DependencyProxyMock<false> dependencyProxyMock{monitor, 0};
dependencyProxyMock.shouldReturn(ExecutionState::DONE, nullptr);
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
ASSERT_TRUE(matrix->empty());
ASSERT_TRUE(matrix->size() == 0);
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 1);
}
TEST_F(AllRowsFetcherTest, no_blocks_upstream_the_producer_waits) {
DependencyProxyMock<false> dependencyProxyMock{monitor, 0};
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, nullptr);
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
ASSERT_TRUE(matrix->empty());
ASSERT_TRUE(matrix->size() == 0);
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 2);
}
TEST_F(AllRowsFetcherTest, a_single_upstream_block_producer_returns_done_immediately) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::DONE, std::move(block));
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(1, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
ASSERT_EQ(42, matrix->getRow(rowIndexes[0]).getValue(0).slice().getInt());
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 1);
}
TEST_F(AllRowsFetcherTest, a_single_upstream_block_producer_returns_hasmore_then_done) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::HASMORE, std::move(block))
.andThenReturn(ExecutionState::DONE, nullptr);
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(1, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
EXPECT_EQ(42, matrix->getRow(rowIndexes[0]).getValue(0).slice().getInt());
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 2);
}
TEST_F(AllRowsFetcherTest, a_single_upstream_block_producer_waits_then_returns_done) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::DONE, std::move(block));
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(1, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
EXPECT_EQ(42, matrix->getRow(rowIndexes[0]).getValue(0).slice().getInt());
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 2);
}
TEST_F(AllRowsFetcherTest, a_single_upstream_block_producer_waits_returns_hasmore_then_done) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
SharedAqlItemBlockPtr block = buildBlock<1>(itemBlockManager, {{42}});
dependencyProxyMock.shouldReturn(ExecutionState::WAITING, nullptr)
.andThenReturn(ExecutionState::HASMORE, std::move(block))
.andThenReturn(ExecutionState::DONE, nullptr);
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(1, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
EXPECT_EQ(42, matrix->getRow(rowIndexes[0]).getValue(0).slice().getInt());
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 3);
}
// TODO the following tests should be simplified, a simple output
// specification should be compared with the actual output.
TEST_F(AllRowsFetcherTest, multiple_blocks_upstream_producer_does_not_wait) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
// 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));
{
AllRowsFetcher testee(dependencyProxyMock);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(6, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
for (int64_t i = 0; i < 6; i++) {
int64_t rowValue = i + 1;
auto row = matrix->getRow(rowIndexes[i]);
ASSERT_TRUE(row.isInitialized());
EXPECT_EQ(rowValue, row.getValue(0).slice().getInt());
}
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 3);
}
TEST_F(AllRowsFetcherTest, multiple_blocks_upstream_producer_waits) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
// 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));
{
AllRowsFetcher testee(dependencyProxyMock);
// wait when fetching the 1st and 2nd block
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
// now get the matrix
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(6, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
for (int64_t i = 0; i < 6; i++) {
int64_t rowValue = i + 1;
auto row = matrix->getRow(rowIndexes[i]);
EXPECT_EQ(rowValue, row.getValue(0).slice().getInt());
}
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 6);
}
TEST_F(AllRowsFetcherTest, multiple_blocks_upstream_producer_waits_and_does_not_return_done) {
AqlItemBlockManager itemBlockManager{&monitor};
DependencyProxyMock<false> dependencyProxyMock{monitor, 1};
// 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);
{
AllRowsFetcher testee(dependencyProxyMock);
// wait when fetching the 1st and 2nd block
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::WAITING);
ASSERT_TRUE(matrix == nullptr);
// now get the matrix
std::tie(state, matrix) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix != nullptr);
EXPECT_EQ(1, matrix->getNrRegisters());
EXPECT_FALSE(matrix->empty());
EXPECT_EQ(6, matrix->size());
auto rowIndexes = matrix->produceRowIndexes();
ASSERT_EQ(matrix->size(), rowIndexes.size());
for (int64_t i = 0; i < 6; i++) {
int64_t rowValue = i + 1;
auto row = matrix->getRow(rowIndexes[i]);
EXPECT_EQ(rowValue, row.getValue(0).slice().getInt());
}
AqlItemMatrix const* matrix2 = nullptr;
std::tie(state, matrix2) = testee.fetchAllRows();
ASSERT_TRUE(state == ExecutionState::DONE);
ASSERT_TRUE(matrix2 == matrix);
} // testee is destroyed here
// testee must be destroyed before verify, because it may call returnBlock
// in the destructor
ASSERT_TRUE(dependencyProxyMock.allBlocksFetched());
ASSERT_TRUE(dependencyProxyMock.numFetchBlockCalls() == 7);
}
} // namespace aql
} // namespace tests
} // namespace arangodb