mirror of https://github.com/facebook/rocksdb.git
71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#include "db/compaction_iterator.h"
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#include "util/testharness.h"
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#include "util/testutil.h"
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namespace rocksdb {
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class CompactionIteratorTest : public testing::Test {
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public:
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CompactionIteratorTest() : cmp_(BytewiseComparator()), snapshots_({}) {}
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void InitIterator(const std::vector<std::string>& ks,
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const std::vector<std::string>& vs,
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SequenceNumber last_sequence) {
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merge_helper_.reset(new MergeHelper(cmp_, nullptr, nullptr, 0U, false));
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iter_.reset(new test::VectorIterator(ks, vs));
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iter_->SeekToFirst();
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c_iter_.reset(new CompactionIterator(iter_.get(), cmp_, merge_helper_.get(),
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last_sequence, &snapshots_,
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Env::Default(), false));
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}
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const Comparator* cmp_;
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std::vector<SequenceNumber> snapshots_;
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std::unique_ptr<MergeHelper> merge_helper_;
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std::unique_ptr<test::VectorIterator> iter_;
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std::unique_ptr<CompactionIterator> c_iter_;
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};
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// It is possible that the output of the compaction iterator is empty even if
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// the input is not.
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TEST_F(CompactionIteratorTest, EmptyResult) {
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InitIterator({test::KeyStr("a", 5, kTypeSingleDeletion),
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test::KeyStr("a", 3, kTypeValue)},
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{"", "val"}, 5);
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c_iter_->SeekToFirst();
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ASSERT_FALSE(c_iter_->Valid());
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}
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// If there is a corruption after a single deletion, the corrupted key should
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// be preserved.
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TEST_F(CompactionIteratorTest, CorruptionAfterSingleDeletion) {
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InitIterator({test::KeyStr("a", 5, kTypeSingleDeletion),
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test::KeyStr("a", 3, kTypeValue, true),
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test::KeyStr("b", 10, kTypeValue)},
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{"", "val", "val2"}, 10);
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c_iter_->SeekToFirst();
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ASSERT_TRUE(c_iter_->Valid());
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ASSERT_EQ(test::KeyStr("a", 5, kTypeSingleDeletion),
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c_iter_->key().ToString());
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c_iter_->Next();
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ASSERT_TRUE(c_iter_->Valid());
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ASSERT_EQ(test::KeyStr("a", 3, kTypeValue, true), c_iter_->key().ToString());
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c_iter_->Next();
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ASSERT_TRUE(c_iter_->Valid());
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ASSERT_EQ(test::KeyStr("b", 10, kTypeValue), c_iter_->key().ToString());
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c_iter_->Next();
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ASSERT_FALSE(c_iter_->Valid());
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}
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} // namespace rocksdb
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int main(int argc, char** argv) {
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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