108 lines
4.6 KiB
C++
108 lines
4.6 KiB
C++
#pragma once
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#ifndef MESSMER_BLOCKSTORE_TEST_TESTUTILS_BLOCKSTORETEST_DATA_H_
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#define MESSMER_BLOCKSTORE_TEST_TESTUTILS_BLOCKSTORETEST_DATA_H_
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// This file is meant to be included by BlockStoreTest.h only
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struct DataRange {
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size_t blocksize;
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off_t offset;
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size_t count;
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};
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class BlockStoreDataParametrizedTest {
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public:
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BlockStoreDataParametrizedTest(cpputils::unique_ref<blockstore::BlockStore> blockStore_, const DataRange &testData_)
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: blockStore(std::move(blockStore_)),
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testData(testData_),
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foregroundData(cpputils::DataFixture::generate(testData.count, 0)),
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backgroundData(cpputils::DataFixture::generate(testData.blocksize, 1)) {
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}
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void TestWriteAndReadImmediately() {
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auto block = blockStore->create(cpputils::Data(testData.blocksize).FillWithZeroes());
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block->write(foregroundData.data(), testData.offset, testData.count);
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EXPECT_DATA_READS_AS(foregroundData, *block, testData.offset, testData.count);
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EXPECT_DATA_IS_ZEROES_OUTSIDE_OF(*block, testData.offset, testData.count);
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}
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void TestWriteAndReadAfterLoading() {
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blockstore::Key key = CreateBlockWriteToItAndReturnKey(foregroundData);
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auto loaded_block = blockStore->load(key).value();
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EXPECT_DATA_READS_AS(foregroundData, *loaded_block, testData.offset, testData.count);
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EXPECT_DATA_IS_ZEROES_OUTSIDE_OF(*loaded_block, testData.offset, testData.count);
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}
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void TestOverwriteAndRead() {
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auto block = blockStore->create(cpputils::Data(testData.blocksize));
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block->write(backgroundData.data(), 0, testData.blocksize);
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block->write(foregroundData.data(), testData.offset, testData.count);
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EXPECT_DATA_READS_AS(foregroundData, *block, testData.offset, testData.count);
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EXPECT_DATA_READS_AS_OUTSIDE_OF(backgroundData, *block, testData.offset, testData.count);
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}
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private:
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cpputils::unique_ref<blockstore::BlockStore> blockStore;
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DataRange testData;
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cpputils::Data foregroundData;
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cpputils::Data backgroundData;
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blockstore::Key CreateBlockWriteToItAndReturnKey(const cpputils::Data &to_write) {
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auto newblock = blockStore->create(cpputils::Data(testData.blocksize).FillWithZeroes());
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newblock->write(to_write.data(), testData.offset, testData.count);
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return newblock->key();
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}
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void EXPECT_DATA_READS_AS(const cpputils::Data &expected, const blockstore::Block &block, off_t offset, size_t count) {
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cpputils::Data read(count);
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std::memcpy(read.data(), (uint8_t*)block.data() + offset, count);
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EXPECT_EQ(expected, read);
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}
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void EXPECT_DATA_READS_AS_OUTSIDE_OF(const cpputils::Data &expected, const blockstore::Block &block, off_t start, size_t count) {
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cpputils::Data begin(start);
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cpputils::Data end(testData.blocksize - count - start);
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std::memcpy(begin.data(), expected.data(), start);
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std::memcpy(end.data(), (uint8_t*)expected.data()+start+count, end.size());
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EXPECT_DATA_READS_AS(begin, block, 0, start);
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EXPECT_DATA_READS_AS(end, block, start + count, end.size());
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}
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void EXPECT_DATA_IS_ZEROES_OUTSIDE_OF(const blockstore::Block &block, off_t start, size_t count) {
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cpputils::Data ZEROES(testData.blocksize);
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ZEROES.FillWithZeroes();
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EXPECT_DATA_READS_AS_OUTSIDE_OF(ZEROES, block, start, count);
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}
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};
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inline std::vector<DataRange> DATA_RANGES() {
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return {
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DataRange{1024, 0, 1024}, // full size leaf, access beginning to end
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DataRange{1024, 100, 1024 - 200}, // full size leaf, access middle to middle
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DataRange{1024, 0, 1024 - 100}, // full size leaf, access beginning to middle
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DataRange{1024, 100, 1024 - 100}, // full size leaf, access middle to end
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DataRange{1024 - 100, 0, 1024 - 100}, // non-full size leaf, access beginning to end
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DataRange{1024 - 100, 100, 1024 - 300}, // non-full size leaf, access middle to middle
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DataRange{1024 - 100, 0, 1024 - 200}, // non-full size leaf, access beginning to middle
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DataRange{1024 - 100, 100, 1024 - 200} // non-full size leaf, access middle to end
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};
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};
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#define TYPED_TEST_P_FOR_ALL_DATA_RANGES(TestName) \
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TYPED_TEST_P(BlockStoreTest, TestName) { \
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for (auto dataRange: DATA_RANGES()) { \
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BlockStoreDataParametrizedTest(this->fixture.createBlockStore(), dataRange) \
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.Test##TestName(); \
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} \
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}
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TYPED_TEST_P_FOR_ALL_DATA_RANGES(WriteAndReadImmediately);
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TYPED_TEST_P_FOR_ALL_DATA_RANGES(WriteAndReadAfterLoading);
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TYPED_TEST_P_FOR_ALL_DATA_RANGES(OverwriteAndRead);
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#endif
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