選択できるのは25トピックまでです。
トピックは、先頭が英数字で、英数字とダッシュ('-')を使用した35文字以内のものにしてください。
132 行
3.6 KiB
132 行
3.6 KiB
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "db/memtable.h"
|
|
#include "db/write_batch_internal.h"
|
|
#include "leveldb/db.h"
|
|
#include "leveldb/env.h"
|
|
#include "util/logging.h"
|
|
|
|
namespace leveldb {
|
|
|
|
static std::string PrintContents(WriteBatch* b) {
|
|
InternalKeyComparator cmp(BytewiseComparator());
|
|
MemTable* mem = new MemTable(cmp);
|
|
mem->Ref();
|
|
std::string state;
|
|
Status s = WriteBatchInternal::InsertInto(b, mem);
|
|
int count = 0;
|
|
Iterator* iter = mem->NewIterator();
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
|
|
ParsedInternalKey ikey;
|
|
EXPECT_TRUE(ParseInternalKey(iter->key(), &ikey));
|
|
switch (ikey.type) {
|
|
case kTypeValue:
|
|
state.append("Put(");
|
|
state.append(ikey.user_key.ToString());
|
|
state.append(", ");
|
|
state.append(iter->value().ToString());
|
|
state.append(")");
|
|
count++;
|
|
break;
|
|
case kTypeDeletion:
|
|
state.append("Delete(");
|
|
state.append(ikey.user_key.ToString());
|
|
state.append(")");
|
|
count++;
|
|
break;
|
|
}
|
|
state.append("@");
|
|
state.append(NumberToString(ikey.sequence));
|
|
}
|
|
delete iter;
|
|
if (!s.ok()) {
|
|
state.append("ParseError()");
|
|
} else if (count != WriteBatchInternal::Count(b)) {
|
|
state.append("CountMismatch()");
|
|
}
|
|
mem->Unref();
|
|
return state;
|
|
}
|
|
|
|
TEST(WriteBatchTest, Empty) {
|
|
WriteBatch batch;
|
|
ASSERT_EQ("", PrintContents(&batch));
|
|
ASSERT_EQ(0, WriteBatchInternal::Count(&batch));
|
|
}
|
|
|
|
TEST(WriteBatchTest, Multiple) {
|
|
WriteBatch batch;
|
|
batch.Put(Slice("foo"), Slice("bar"));
|
|
batch.Delete(Slice("box"));
|
|
batch.Put(Slice("baz"), Slice("boo"));
|
|
WriteBatchInternal::SetSequence(&batch, 100);
|
|
ASSERT_EQ(100, WriteBatchInternal::Sequence(&batch));
|
|
ASSERT_EQ(3, WriteBatchInternal::Count(&batch));
|
|
ASSERT_EQ(
|
|
"Put(baz, boo)@102"
|
|
"Delete(box)@101"
|
|
"Put(foo, bar)@100",
|
|
PrintContents(&batch));
|
|
}
|
|
|
|
TEST(WriteBatchTest, Corruption) {
|
|
WriteBatch batch;
|
|
batch.Put(Slice("foo"), Slice("bar"));
|
|
batch.Delete(Slice("box"));
|
|
WriteBatchInternal::SetSequence(&batch, 200);
|
|
Slice contents = WriteBatchInternal::Contents(&batch);
|
|
WriteBatchInternal::SetContents(&batch,
|
|
Slice(contents.data(), contents.size() - 1));
|
|
ASSERT_EQ(
|
|
"Put(foo, bar)@200"
|
|
"ParseError()",
|
|
PrintContents(&batch));
|
|
}
|
|
|
|
TEST(WriteBatchTest, Append) {
|
|
WriteBatch b1, b2;
|
|
WriteBatchInternal::SetSequence(&b1, 200);
|
|
WriteBatchInternal::SetSequence(&b2, 300);
|
|
b1.Append(b2);
|
|
ASSERT_EQ("", PrintContents(&b1));
|
|
b2.Put("a", "va");
|
|
b1.Append(b2);
|
|
ASSERT_EQ("Put(a, va)@200", PrintContents(&b1));
|
|
b2.Clear();
|
|
b2.Put("b", "vb");
|
|
b1.Append(b2);
|
|
ASSERT_EQ(
|
|
"Put(a, va)@200"
|
|
"Put(b, vb)@201",
|
|
PrintContents(&b1));
|
|
b2.Delete("foo");
|
|
b1.Append(b2);
|
|
ASSERT_EQ(
|
|
"Put(a, va)@200"
|
|
"Put(b, vb)@202"
|
|
"Put(b, vb)@201"
|
|
"Delete(foo)@203",
|
|
PrintContents(&b1));
|
|
}
|
|
|
|
TEST(WriteBatchTest, ApproximateSize) {
|
|
WriteBatch batch;
|
|
size_t empty_size = batch.ApproximateSize();
|
|
|
|
batch.Put(Slice("foo"), Slice("bar"));
|
|
size_t one_key_size = batch.ApproximateSize();
|
|
ASSERT_LT(empty_size, one_key_size);
|
|
|
|
batch.Put(Slice("baz"), Slice("boo"));
|
|
size_t two_keys_size = batch.ApproximateSize();
|
|
ASSERT_LT(one_key_size, two_keys_size);
|
|
|
|
batch.Delete(Slice("box"));
|
|
size_t post_delete_size = batch.ApproximateSize();
|
|
ASSERT_LT(two_keys_size, post_delete_size);
|
|
}
|
|
|
|
} // namespace leveldb
|