202 lines
7.7 KiB
C++
202 lines
7.7 KiB
C++
#include "testutils/DataTreeTest.h"
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#include "testutils/TwoLevelDataFixture.h"
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#include "blobstore/implementations/onblocks/utils/Math.h"
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#include <cpp-utils/data/Data.h>
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#include <tuple>
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using ::testing::WithParamInterface;
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using ::testing::Values;
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using ::testing::Combine;
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using std::tuple;
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using std::get;
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using std::function;
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using std::mem_fn;
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using cpputils::dynamic_pointer_move;
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using blobstore::onblocks::datanodestore::DataLeafNode;
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using blobstore::onblocks::datanodestore::DataInnerNode;
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using blobstore::onblocks::datanodestore::DataNode;
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using blobstore::onblocks::datanodestore::DataNodeLayout;
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using blobstore::onblocks::datatreestore::DataTree;
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using blobstore::onblocks::utils::ceilDivision;
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using blockstore::Key;
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using cpputils::Data;
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using boost::none;
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using cpputils::unique_ref;
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class DataTreeTest_ResizeByTraversing: public DataTreeTest {
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public:
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static constexpr DataNodeLayout LAYOUT = DataNodeLayout(BLOCKSIZE_BYTES);
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unique_ref<DataTree> CreateTree(unique_ref<DataNode> root) {
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Key key = root->key();
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cpputils::destruct(std::move(root));
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return treeStore.load(key).value();
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}
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unique_ref<DataTree> CreateLeafTreeWithSize(uint32_t size) {
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return CreateTree(CreateLeafWithSize(size));
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}
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unique_ref<DataTree> CreateTwoLeafTreeWithSecondLeafSize(uint32_t size) {
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return CreateTree(CreateTwoLeafWithSecondLeafSize(size));
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}
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unique_ref<DataTree> CreateFullTwoLevelTreeWithLastLeafSize(uint32_t size) {
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return CreateTree(CreateFullTwoLevelWithLastLeafSize(size));
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}
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unique_ref<DataTree> CreateThreeLevelTreeWithTwoChildrenAndLastLeafSize(uint32_t size) {
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return CreateTree(CreateThreeLevelWithTwoChildrenAndLastLeafSize(size));
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}
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unique_ref<DataTree> CreateThreeLevelTreeWithThreeChildrenAndLastLeafSize(uint32_t size) {
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return CreateTree(CreateThreeLevelWithThreeChildrenAndLastLeafSize(size));
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}
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unique_ref<DataTree> CreateFullThreeLevelTreeWithLastLeafSize(uint32_t size) {
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return CreateTree(CreateFullThreeLevelWithLastLeafSize(size));
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}
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unique_ref<DataTree> CreateFourLevelMinDataTreeWithLastLeafSize(uint32_t size) {
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return CreateTree(CreateFourLevelMinDataWithLastLeafSize(size));
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}
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void EXPECT_IS_LEFTMAXDATA_TREE(const Key &key) {
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auto root = nodeStore->load(key).value();
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DataInnerNode *inner = dynamic_cast<DataInnerNode*>(root.get());
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if (inner != nullptr) {
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for (uint32_t i = 0; i < inner->numChildren()-1; ++i) {
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EXPECT_IS_MAXDATA_TREE(inner->getChild(i)->key());
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}
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EXPECT_IS_LEFTMAXDATA_TREE(inner->LastChild()->key());
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}
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}
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void EXPECT_IS_MAXDATA_TREE(const Key &key) {
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auto root = nodeStore->load(key).value();
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DataInnerNode *inner = dynamic_cast<DataInnerNode*>(root.get());
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if (inner != nullptr) {
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for (uint32_t i = 0; i < inner->numChildren(); ++i) {
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EXPECT_IS_MAXDATA_TREE(inner->getChild(i)->key());
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}
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} else {
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DataLeafNode *leaf = dynamic_cast<DataLeafNode*>(root.get());
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EXPECT_EQ(nodeStore->layout().maxBytesPerLeaf(), leaf->numBytes());
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}
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}
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};
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constexpr DataNodeLayout DataTreeTest_ResizeByTraversing::LAYOUT;
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class DataTreeTest_ResizeByTraversing_P: public DataTreeTest_ResizeByTraversing, public WithParamInterface<tuple<function<unique_ref<DataTree>(DataTreeTest_ResizeByTraversing*, uint32_t)>, uint32_t, uint32_t>> {
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public:
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DataTreeTest_ResizeByTraversing_P()
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: oldLastLeafSize(get<1>(GetParam())),
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tree(get<0>(GetParam())(this, oldLastLeafSize)),
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numberOfLeavesToAdd(get<2>(GetParam())),
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newNumberOfLeaves(tree->numLeaves()+numberOfLeavesToAdd),
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ZEROES(LAYOUT.maxBytesPerLeaf())
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{
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ZEROES.FillWithZeroes();
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}
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void GrowTree(const Key &key, uint32_t numLeavesToAdd) {
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auto tree = treeStore.load(key);
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GrowTree(tree.get().get(), numLeavesToAdd);
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}
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void GrowTree(DataTree *tree, uint32_t numLeavesToAdd) {
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uint32_t oldNumLeaves = tree->numLeaves();
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uint32_t newNumLeaves = oldNumLeaves + numLeavesToAdd;
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//TODO Test cases where beginIndex is inside of the existing leaves
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tree->traverseLeaves(newNumLeaves-1, newNumLeaves, [] (DataLeafNode*,uint32_t){});
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tree->flush();
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}
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unique_ref<DataLeafNode> LastLeaf(const Key &key) {
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auto root = nodeStore->load(key).value();
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auto leaf = dynamic_pointer_move<DataLeafNode>(root);
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if (leaf != none) {
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return std::move(*leaf);
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}
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auto inner = dynamic_pointer_move<DataInnerNode>(root).value();
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return LastLeaf(inner->LastChild()->key());
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}
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uint32_t oldLastLeafSize;
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unique_ref<DataTree> tree;
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uint32_t numberOfLeavesToAdd;
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uint32_t newNumberOfLeaves;
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Data ZEROES;
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};
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INSTANTIATE_TEST_CASE_P(DataTreeTest_ResizeByTraversing_P, DataTreeTest_ResizeByTraversing_P,
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Combine(
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//Tree we're starting with
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Values<function<unique_ref<DataTree>(DataTreeTest_ResizeByTraversing*, uint32_t)>>(
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateLeafTreeWithSize),
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateTwoLeafTreeWithSecondLeafSize),
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateFullTwoLevelTreeWithLastLeafSize),
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateThreeLevelTreeWithTwoChildrenAndLastLeafSize),
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateThreeLevelTreeWithThreeChildrenAndLastLeafSize),
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateFullThreeLevelTreeWithLastLeafSize),
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mem_fn(&DataTreeTest_ResizeByTraversing::CreateFourLevelMinDataTreeWithLastLeafSize)
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),
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//Last leaf size of the start tree
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Values(
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0u,
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1u,
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10u,
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DataTreeTest_ResizeByTraversing::LAYOUT.maxBytesPerLeaf()
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),
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//Number of leaves we're adding
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Values(
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1u,
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2u,
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DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode(), //Full two level tree
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2* DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode(), //Three level tree with two children
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3* DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode(), //Three level tree with three children
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DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode() * DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode(), //Full three level tree
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DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode() * DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode() + 1 //Four level mindata tree
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)
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)
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);
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TEST_P(DataTreeTest_ResizeByTraversing_P, StructureIsValid) {
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GrowTree(tree.get(), numberOfLeavesToAdd);
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EXPECT_IS_LEFTMAXDATA_TREE(tree->key());
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}
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TEST_P(DataTreeTest_ResizeByTraversing_P, NumLeavesIsCorrect) {
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GrowTree(tree.get(), numberOfLeavesToAdd);
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// tree->numLeaves() only goes down the right border nodes and expects the tree to be a left max data tree.
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// This is what the StructureIsValid test case is for.
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EXPECT_EQ(newNumberOfLeaves, tree->numLeaves());
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}
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TEST_P(DataTreeTest_ResizeByTraversing_P, DepthFlagsAreCorrect) {
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GrowTree(tree.get(), numberOfLeavesToAdd);
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uint32_t depth = ceil(log(newNumberOfLeaves)/log(DataTreeTest_ResizeByTraversing::LAYOUT.maxChildrenPerInnerNode()));
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CHECK_DEPTH(depth, tree->key());
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}
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TEST_P(DataTreeTest_ResizeByTraversing_P, KeyDoesntChange) {
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Key key = tree->key();
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tree->flush();
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GrowTree(tree.get(), numberOfLeavesToAdd);
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EXPECT_EQ(key, tree->key());
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}
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TEST_P(DataTreeTest_ResizeByTraversing_P, DataStaysIntact) {
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uint32_t oldNumberOfLeaves = std::max(UINT64_C(1), ceilDivision(tree->numStoredBytes(), (uint64_t)nodeStore->layout().maxBytesPerLeaf()));
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TwoLevelDataFixture data(nodeStore, TwoLevelDataFixture::SizePolicy::Unchanged);
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Key key = tree->key();
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cpputils::destruct(std::move(tree));
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data.FillInto(nodeStore->load(key).get().get());
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GrowTree(key, newNumberOfLeaves);
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data.EXPECT_DATA_CORRECT(nodeStore->load(key).get().get(), oldNumberOfLeaves, oldLastLeafSize);
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}
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