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Write another integrity test case

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This commit is contained in:
Sebastian Messmer 2016-06-25 14:53:29 -07:00
parent d306f4872e
commit 32001d0af3
1 changed files with 21 additions and 0 deletions
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21
test/blockstore/implementations/versioncounting/VersionCountingBlockStoreTest_Specific.cpp
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@ -74,6 +74,13 @@ public:
baseBlock->write((char*)&version, VersionCountingBlock::VERSION_HEADER_OFFSET, sizeof(version));
}
void increaseVersionNumber(const blockstore::Key &key) {
auto baseBlock = baseBlockStore->load(key).value();
uint64_t version = *(uint64_t*)((uint8_t*)baseBlock->data()+VersionCountingBlock::VERSION_HEADER_OFFSET);
version += 1;
baseBlock->write((char*)&version, VersionCountingBlock::VERSION_HEADER_OFFSET, sizeof(version));
}
void changeClientId(const blockstore::Key &key) {
auto baseBlock = baseBlockStore->load(key).value();
uint32_t clientId = *(uint32_t*)((uint8_t*)baseBlock->data()+VersionCountingBlock::CLIENTID_HEADER_OFFSET);
@ -145,6 +152,20 @@ TEST_F(VersionCountingBlockStoreTest, RollbackPrevention_DoesntAllowReintroducin
EXPECT_EQ(boost::none, blockStore->load(key));
}
// This can happen if a client synchronization is delayed. Another client might have won the conflict and pushed a new version for the deleted block.
TEST_F(VersionCountingBlockStoreTest, RollbackPrevention_AllowsReintroducingDeletedBlocksWithNewVersionNumber) {
auto key = CreateBlockReturnKey();
Data oldBaseBlock = loadBaseBlock(key);
deleteBlock(key);
insertBaseBlock(key, std::move(oldBaseBlock));
increaseVersionNumber(key);
EXPECT_NE(boost::none, blockStore->load(key));
}
// TODO Test more integrity cases:
// - RollbackPrevention_DoesntAllowReintroducingDeletedBlocks with different client id (i.e. trying to re-introduce the newest block of a different client)
// - RollbackPrevention_AllowsReintroducingDeletedBlocksWithNewVersionNumber with different client id
TEST_F(VersionCountingBlockStoreTest, PhysicalBlockSize_zerophysical) {
EXPECT_EQ(0u, blockStore->blockSizeFromPhysicalBlockSize(0));
}