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rocksdb/db/db_merge_operand_test.cc
mrambacher c7c7b07f06 More Makefile Cleanup (#7097) 
Summary:
Cleans up some of the dependencies on test code in the Makefile while building tools:
- Moves the test::RandomString, DBBaseTest::RandomString into Random
- Moves the test::RandomHumanReadableString into Random
- Moves the DestroyDir method into file_utils
- Moves the SetupSyncPointsToMockDirectIO into sync_point.
- Moves the FaultInjection Env and FS classes under env

These changes allow all of the tools to build without dependencies on test_util, thereby simplifying the build dependencies.  By moving the FaultInjection code, the dependency in db_stress on different libraries for debug vs release was eliminated.

Tested both release and debug builds via Make and CMake for both static and shared libraries.

More work remains to clean up how the tools are built and remove some unnecessary dependencies.  There is also more work that should be done to get the Makefile and CMake to align in their builds -- what is in the libraries and the sizes of the executables are different.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7097

Reviewed By: riversand963

Differential Revision: D22463160

Pulled By: pdillinger

fbshipit-source-id: e19462b53324ab3f0b7c72459dbc73165cc382b2
2020-07-09 14:35:17 -07:00

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// Copyright (c) 2018-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "db/db_test_util.h"
#include "port/stack_trace.h"
#include "rocksdb/perf_context.h"
#include "rocksdb/utilities/debug.h"
#include "table/block_based/block_builder.h"
#if !defined(ROCKSDB_LITE)
#include "test_util/sync_point.h"
#endif
#include "rocksdb/merge_operator.h"
#include "utilities/fault_injection_env.h"
#include "utilities/merge_operators.h"
#include "utilities/merge_operators/sortlist.h"
#include "utilities/merge_operators/string_append/stringappend2.h"
namespace ROCKSDB_NAMESPACE {
class DBMergeOperandTest : public DBTestBase {
public:
DBMergeOperandTest() : DBTestBase("/db_merge_operand_test") {}
};
TEST_F(DBMergeOperandTest, GetMergeOperandsBasic) {
class LimitedStringAppendMergeOp : public StringAppendTESTOperator {
public:
LimitedStringAppendMergeOp(int limit, char delim)
: StringAppendTESTOperator(delim), limit_(limit) {}
const char* Name() const override {
return "DBMergeOperatorTest::LimitedStringAppendMergeOp";
}
bool ShouldMerge(const std::vector<Slice>& operands) const override {
if (operands.size() > 0 && limit_ > 0 && operands.size() >= limit_) {
return true;
}
return false;
}
private:
size_t limit_ = 0;
};
Options options;
options.create_if_missing = true;
// Use only the latest two merge operands.
options.merge_operator = std::make_shared<LimitedStringAppendMergeOp>(2, ',');
options.env = env_;
Reopen(options);
int num_records = 4;
int number_of_operands = 0;
std::vector<PinnableSlice> values(num_records);
GetMergeOperandsOptions merge_operands_info;
merge_operands_info.expected_max_number_of_operands = num_records;
// k0 value in memtable
Put("k0", "PutARock");
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k0",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "PutARock");
// k0.1 value in SST
Put("k0.1", "RockInSST");
ASSERT_OK(Flush());
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k0.1",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "RockInSST");
// All k1 values are in memtable.
ASSERT_OK(Merge("k1", "a"));
Put("k1", "x");
ASSERT_OK(Merge("k1", "b"));
ASSERT_OK(Merge("k1", "c"));
ASSERT_OK(Merge("k1", "d"));
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k1",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "x");
ASSERT_EQ(values[1], "b");
ASSERT_EQ(values[2], "c");
ASSERT_EQ(values[3], "d");
// expected_max_number_of_operands is less than number of merge operands so
// status should be Incomplete.
merge_operands_info.expected_max_number_of_operands = num_records - 1;
Status status = db_->GetMergeOperands(
ReadOptions(), db_->DefaultColumnFamily(), "k1", values.data(),
&merge_operands_info, &number_of_operands);
ASSERT_EQ(status.IsIncomplete(), true);
merge_operands_info.expected_max_number_of_operands = num_records;
// All k1.1 values are in memtable.
ASSERT_OK(Merge("k1.1", "r"));
Delete("k1.1");
ASSERT_OK(Merge("k1.1", "c"));
ASSERT_OK(Merge("k1.1", "k"));
ASSERT_OK(Merge("k1.1", "s"));
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k1.1",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "c");
ASSERT_EQ(values[1], "k");
ASSERT_EQ(values[2], "s");
// All k2 values are flushed to L0 into a single file.
ASSERT_OK(Merge("k2", "q"));
ASSERT_OK(Merge("k2", "w"));
ASSERT_OK(Merge("k2", "e"));
ASSERT_OK(Merge("k2", "r"));
ASSERT_OK(Flush());
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k2",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "q");
ASSERT_EQ(values[1], "w");
ASSERT_EQ(values[2], "e");
ASSERT_EQ(values[3], "r");
// All k2.1 values are flushed to L0 into a single file.
ASSERT_OK(Merge("k2.1", "m"));
Put("k2.1", "l");
ASSERT_OK(Merge("k2.1", "n"));
ASSERT_OK(Merge("k2.1", "o"));
ASSERT_OK(Flush());
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k2.1",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "l,n,o");
// All k2.2 values are flushed to L0 into a single file.
ASSERT_OK(Merge("k2.2", "g"));
Delete("k2.2");
ASSERT_OK(Merge("k2.2", "o"));
ASSERT_OK(Merge("k2.2", "t"));
ASSERT_OK(Flush());
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k2.2",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "o,t");
// Do some compaction that will make the following tests more predictable
// Slice start("PutARock");
// Slice end("t");
db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
// All k3 values are flushed and are in different files.
ASSERT_OK(Merge("k3", "ab"));
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3", "bc"));
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3", "cd"));
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3", "de"));
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k3",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "ab");
ASSERT_EQ(values[1], "bc");
ASSERT_EQ(values[2], "cd");
ASSERT_EQ(values[3], "de");
// All k3.1 values are flushed and are in different files.
ASSERT_OK(Merge("k3.1", "ab"));
ASSERT_OK(Flush());
Put("k3.1", "bc");
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3.1", "cd"));
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3.1", "de"));
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k3.1",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "bc");
ASSERT_EQ(values[1], "cd");
ASSERT_EQ(values[2], "de");
// All k3.2 values are flushed and are in different files.
ASSERT_OK(Merge("k3.2", "ab"));
ASSERT_OK(Flush());
Delete("k3.2");
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3.2", "cd"));
ASSERT_OK(Flush());
ASSERT_OK(Merge("k3.2", "de"));
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k3.2",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "cd");
ASSERT_EQ(values[1], "de");
// All K4 values are in different levels
ASSERT_OK(Merge("k4", "ba"));
ASSERT_OK(Flush());
MoveFilesToLevel(4);
ASSERT_OK(Merge("k4", "cb"));
ASSERT_OK(Flush());
MoveFilesToLevel(3);
ASSERT_OK(Merge("k4", "dc"));
ASSERT_OK(Flush());
MoveFilesToLevel(1);
ASSERT_OK(Merge("k4", "ed"));
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k4",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "ba");
ASSERT_EQ(values[1], "cb");
ASSERT_EQ(values[2], "dc");
ASSERT_EQ(values[3], "ed");
// First 3 k5 values are in SST and next 4 k5 values are in Immutable Memtable
ASSERT_OK(Merge("k5", "who"));
ASSERT_OK(Merge("k5", "am"));
ASSERT_OK(Merge("k5", "i"));
ASSERT_OK(Flush());
Put("k5", "remember");
ASSERT_OK(Merge("k5", "i"));
ASSERT_OK(Merge("k5", "am"));
ASSERT_OK(Merge("k5", "rocks"));
dbfull()->TEST_SwitchMemtable();
db_->GetMergeOperands(ReadOptions(), db_->DefaultColumnFamily(), "k5",
values.data(), &merge_operands_info,
&number_of_operands);
ASSERT_EQ(values[0], "remember");
ASSERT_EQ(values[1], "i");
ASSERT_EQ(values[2], "am");
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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