Ви не можете вибрати більше 25 тем
Теми мають розпочинатися з літери або цифри, можуть містити дефіси (-) і не повинні перевищувати 35 символів.
110 рядки
3.2 KiB
110 рядки
3.2 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 "leveldb/db.h"
|
|
|
|
#include "db/memtable.h"
|
|
#include "db/write_batch_internal.h"
|
|
#include "leveldb/env.h"
|
|
#include "util/logging.h"
|
|
#include "util/testharness.h"
|
|
|
|
namespace leveldb {
|
|
|
|
static std::string PrintContents(WriteBatch* b) {
|
|
InternalKeyComparator cmp(BytewiseComparator());
|
|
MemTable mem(cmp);
|
|
std::string state;
|
|
Status s = WriteBatchInternal::InsertInto(b, &mem);
|
|
Iterator* iter = mem.NewIterator();
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
|
|
ParsedInternalKey ikey;
|
|
ASSERT_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(")");
|
|
break;
|
|
case kTypeLargeValueRef:
|
|
state.append("PutRef(");
|
|
state.append(ikey.user_key.ToString());
|
|
state.append(", ");
|
|
state.append(iter->value().ToString());
|
|
state.append(")");
|
|
break;
|
|
case kTypeDeletion:
|
|
state.append("Delete(");
|
|
state.append(ikey.user_key.ToString());
|
|
state.append(")");
|
|
break;
|
|
}
|
|
state.append("@");
|
|
state.append(NumberToString(ikey.sequence));
|
|
}
|
|
delete iter;
|
|
if (!s.ok()) {
|
|
state.append("ParseError()");
|
|
}
|
|
return state;
|
|
}
|
|
|
|
class WriteBatchTest { };
|
|
|
|
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, PutIndirect) {
|
|
WriteBatch batch;
|
|
batch.Put(Slice("baz"), Slice("boo"));
|
|
LargeValueRef h;
|
|
for (int i = 0; i < LargeValueRef::ByteSize(); i++) {
|
|
h.data[i] = (i < 20) ? 'a' : 'b';
|
|
}
|
|
WriteBatchInternal::PutLargeValueRef(&batch, Slice("foo"), h);
|
|
WriteBatchInternal::SetSequence(&batch, 100);
|
|
ASSERT_EQ(100, WriteBatchInternal::Sequence(&batch));
|
|
ASSERT_EQ(2, WriteBatchInternal::Count(&batch));
|
|
ASSERT_EQ("Put(baz, boo)@100"
|
|
"PutRef(foo, aaaaaaaaaaaaaaaaaaaabbbbbbbbb)@101",
|
|
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));
|
|
}
|
|
|
|
}
|
|
|
|
int main(int argc, char** argv) {
|
|
return leveldb::test::RunAllTests();
|
|
}
|