2014-12-09 18:53:11 +01:00
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#include <gtest/gtest.h>
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#include "blockstore/implementations/inmemory/InMemoryBlockStore.h"
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#include "blockstore/implementations/inmemory/InMemoryBlock.h"
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#include "blobstore/implementations/onblocks/BlobStoreOnBlocks.h"
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#include "blobstore/implementations/onblocks/impl/DataNode.h"
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#include "blobstore/implementations/onblocks/impl/DataLeafNode.h"
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#include "blobstore/implementations/onblocks/impl/DataInnerNode.h"
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using ::testing::Test;
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using std::unique_ptr;
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using std::make_unique;
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using std::string;
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using blockstore::BlockStore;
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using blockstore::inmemory::InMemoryBlockStore;
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using namespace blobstore;
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using namespace blobstore::onblocks;
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class DataNodeTest: public Test {
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public:
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unique_ptr<BlockStore> blockStore = make_unique<InMemoryBlockStore>();
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};
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#define EXPECT_IS_PTR_TYPE(Type, ptr) EXPECT_NE(nullptr, dynamic_cast<Type*>(ptr)) << "Given pointer cannot be cast to the given type"
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TEST_F(DataNodeTest, InitializeNewLeafNodeCreatesLeafNodeObject) {
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auto block = blockStore->create(BlobStoreOnBlocks::BLOCKSIZE);
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string key = block.key;
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auto leafNode = DataNode::initializeNewLeafNode(std::move(block.block));
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EXPECT_IS_PTR_TYPE(DataLeafNode, leafNode.get());
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}
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TEST_F(DataNodeTest, InitializeNewInnerNodeCreatesInnerNodeObject) {
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auto block = blockStore->create(BlobStoreOnBlocks::BLOCKSIZE);
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string key = block.key;
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auto innerNode = DataNode::initializeNewInnerNode(std::move(block.block));
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EXPECT_IS_PTR_TYPE(DataInnerNode, innerNode.get());
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}
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TEST_F(DataNodeTest, LeafNodeIsRecognizedAfterStoreAndLoad) {
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auto block = blockStore->create(BlobStoreOnBlocks::BLOCKSIZE);
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string key = block.key;
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auto node = DataNode::initializeNewLeafNode(std::move(block.block));
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node->flush();
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auto loaded_node = DataNode::load(blockStore->load(key));
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EXPECT_IS_PTR_TYPE(DataLeafNode, loaded_node.get());
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}
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TEST_F(DataNodeTest, InnerNodeIsRecognizedAfterStoreAndLoad) {
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auto block = blockStore->create(BlobStoreOnBlocks::BLOCKSIZE);
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string key = block.key;
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auto node = DataNode::initializeNewInnerNode(std::move(block.block));
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node->flush();
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auto loaded_node = DataNode::load(blockStore->load(key));
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EXPECT_IS_PTR_TYPE(DataInnerNode, loaded_node.get());
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}
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2014-12-09 18:56:45 +01:00
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TEST_F(DataNodeTest, DataNodeCrashesOnLoadIfMagicNumberIsWrong) {
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auto block = blockStore->create(BlobStoreOnBlocks::BLOCKSIZE);
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string key = block.key;
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DataNode::NodeHeader* header = (DataNode::NodeHeader*)block.block->data();
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header->magicNumber = 0xFF; // this is an invalid magic number
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EXPECT_ANY_THROW(
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DataNode::load(std::move(block.block))
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);
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}
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