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#include "testutils/BlobStoreTest.h"
#include <cpp-utils/data/Data.h>
#include <cpp-utils/data/DataFixture.h>
#include "blobstore/implementations/onblocks/datanodestore/DataNodeView.h"
using cpputils::unique_ref;
using ::testing::WithParamInterface;
using ::testing::Values;
using namespace blobstore;
using blobstore::onblocks::datanodestore::DataNodeLayout;
using blockstore::BlockId;
using cpputils::Data;
using cpputils::DataFixture;
namespace {
class BlobReadWriteTest: public BlobStoreTest {
public:
static constexpr uint32_t LARGE_SIZE = 10 * 1024 * 1024;
static constexpr DataNodeLayout LAYOUT = DataNodeLayout(BLOCKSIZE_BYTES);
BlobReadWriteTest()
:randomData(DataFixture::generate(LARGE_SIZE)),
blob(blobStore->create()) {
}
Data readBlob(const Blob &blob) {
Data data(blob.size());
blob.read(data.data(), 0, data.size());
return data;
}
template<class DataClass>
void EXPECT_DATA_READS_AS(const DataClass &expected, const Blob &actual, uint64_t offset, uint64_t size) {
Data read(size);
actual.read(read.data(), offset, size);
EXPECT_EQ(0, std::memcmp(expected.data(), read.data(), size));
}
Data randomData;
unique_ref<Blob> blob;
};
constexpr uint32_t BlobReadWriteTest::LARGE_SIZE;
constexpr DataNodeLayout BlobReadWriteTest::LAYOUT;
TEST_F(BlobReadWriteTest, WritingImmediatelyFlushes_SmallSize) {
blob->resize(5);
blob->write(randomData.data(), 0, 5);
auto loaded = loadBlob(blob->blockId());
EXPECT_DATA_READS_AS(randomData, *loaded, 0, 5);
}
TEST_F(BlobReadWriteTest, WritingImmediatelyFlushes_LargeSize) {
blob->resize(LARGE_SIZE);
blob->write(randomData.data(), 0, LARGE_SIZE);
auto loaded = loadBlob(blob->blockId());
EXPECT_DATA_READS_AS(randomData, *loaded, 0, LARGE_SIZE);
}
// Regression test for a strange bug we had
TEST_F(BlobReadWriteTest, WritingCloseTo16ByteLimitDoesntDestroySize) {
blob->resize(1);
blob->write(randomData.data(), 32776, 4);
EXPECT_EQ(32780u, blob->size());
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenTryReadInFirstLeaf_thenFails) {
Data data(5);
const size_t read = blob->tryRead(data.data(), 3, 5);
EXPECT_EQ(0, read);
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenTryReadInLaterLeaf_thenFails) {
Data data(5);
const size_t read = blob->tryRead(data.data(), 2*LAYOUT.maxBytesPerLeaf(), 5);
EXPECT_EQ(0, read);
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenReadInFirstLeaf_thenFails) {
Data data(5);
EXPECT_ANY_THROW(
blob->read(data.data(), 3, 5)
);
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenReadInLaterLeaf_thenFails) {
Data data(5);
EXPECT_ANY_THROW(
blob->read(data.data(), 2*LAYOUT.maxBytesPerLeaf(), 5)
);
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenReadAll_thenReturnsZeroSizedData) {
const Data data = blob->readAll();
EXPECT_EQ(0, data.size());
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenWrite_thenGrows) {
Data data(5);
blob->write(data.data(), 4, 5);
EXPECT_EQ(9, blob->size());
}
TEST_F(BlobReadWriteTest, givenEmptyBlob_whenWriteZeroBytes_thenDoesntGrow) {
Data data(5);
blob->write(data.data(), 4, 0);
EXPECT_EQ(0, blob->size());;
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenTryReadInFirstLeaf_thenFails) {
Data data(5);
const size_t read = blob->tryRead(data.data(), 3, 5);
EXPECT_EQ(0, read);
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenTryReadInLaterLeaf_thenFails) {
Data data(5);
const size_t read = blob->tryRead(data.data(), 2*LAYOUT.maxBytesPerLeaf(), 5);
EXPECT_EQ(0, read);
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenReadInFirstLeaf_thenFails) {
Data data(5);
EXPECT_ANY_THROW(
blob->read(data.data(), 3, 5)
);
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenReadInLaterLeaf_thenFails) {
Data data(5);
EXPECT_ANY_THROW(
blob->read(data.data(), 2*LAYOUT.maxBytesPerLeaf(), 5)
);
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenReadAll_thenReturnsZeroSizedData) {
const Data data = blob->readAll();
EXPECT_EQ(0, data.size());
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenWrite_thenGrows) {
Data data(5);
blob->write(data.data(), 4, 5);
EXPECT_EQ(9, blob->size());
}
TEST_F(BlobReadWriteTest, givenBlobResizedToZero_whenWriteZeroBytes_thenDoesntGrow) {
Data data(5);
blob->write(data.data(), 4, 0);
EXPECT_EQ(0, blob->size());
}
struct DataRange {
uint64_t blobsize;
uint64_t offset;
uint64_t count;
};
class BlobReadWriteDataTest: public BlobReadWriteTest, public WithParamInterface<DataRange> {
public:
Data foregroundData;
Data backgroundData;
BlobReadWriteDataTest()
: foregroundData(DataFixture::generate(GetParam().count, 0)),
backgroundData(DataFixture::generate(GetParam().blobsize, 1)) {
}
template<class DataClass>
void EXPECT_DATA_READS_AS_OUTSIDE_OF(const DataClass &expected, const Blob &blob, uint64_t start, uint64_t count) {
Data begin(start);
Data end(GetParam().blobsize - count - start);
std::memcpy(begin.data(), expected.data(), start);
std::memcpy(end.data(), expected.dataOffset(start+count), end.size());
EXPECT_DATA_READS_AS(begin, blob, 0, start);
EXPECT_DATA_READS_AS(end, blob, start + count, end.size());
}
void EXPECT_DATA_IS_ZEROES_OUTSIDE_OF(const Blob &blob, uint64_t start, uint64_t count) {
Data ZEROES(GetParam().blobsize);
ZEROES.FillWithZeroes();
EXPECT_DATA_READS_AS_OUTSIDE_OF(ZEROES, blob, start, count);
}
};
INSTANTIATE_TEST_SUITE_P(BlobReadWriteDataTest, BlobReadWriteDataTest, Values(
//Blob with only one leaf
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf(), 0, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()}, // full size leaf, access beginning to end
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf(), 100, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-200}, // full size leaf, access middle to middle
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf(), 0, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100}, // full size leaf, access beginning to middle
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf(), 100, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100}, // full size leaf, access middle to end
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100, 0, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100}, // non-full size leaf, access beginning to end
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100, 100, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-300}, // non-full size leaf, access middle to middle
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100, 0, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-200}, // non-full size leaf, access beginning to middle
DataRange{BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-100, 100, BlobReadWriteDataTest::LAYOUT.maxBytesPerLeaf()-200}, // non-full size leaf, access middle to end
//Larger blob
DataRange{BlobReadWriteDataTest::LARGE_SIZE, 0, BlobReadWriteDataTest::LARGE_SIZE}, // access beginning to end
DataRange{BlobReadWriteDataTest::LARGE_SIZE, 100, BlobReadWriteDataTest::LARGE_SIZE-200}, // access middle first leaf to middle last leaf
DataRange{BlobReadWriteDataTest::LARGE_SIZE, 0, BlobReadWriteDataTest::LARGE_SIZE-100}, // access beginning to middle last leaf
DataRange{BlobReadWriteDataTest::LARGE_SIZE, 100, BlobReadWriteDataTest::LARGE_SIZE-100}, // access middle first leaf to end
DataRange{BlobReadWriteDataTest::LARGE_SIZE, BlobReadWriteDataTest::LARGE_SIZE*1/3, BlobReadWriteDataTest::LARGE_SIZE*1/3}, // access middle to middle
DataRange{BlobReadWriteDataTest::LARGE_SIZE, 0, BlobReadWriteDataTest::LARGE_SIZE*2/3}, // access beginning to middle
DataRange{BlobReadWriteDataTest::LARGE_SIZE, BlobReadWriteDataTest::LARGE_SIZE*1/3, BlobReadWriteDataTest::LARGE_SIZE*2/3} // access middle to end
));
TEST_P(BlobReadWriteDataTest, WritingDoesntChangeSize) {
blob->resize(GetParam().blobsize);
blob->write(this->foregroundData.data(), GetParam().offset, GetParam().count);
EXPECT_EQ(GetParam().blobsize, blob->size());
}
TEST_P(BlobReadWriteDataTest, WriteAndReadImmediately) {
blob->resize(GetParam().blobsize);
blob->write(this->foregroundData.data(), GetParam().offset, GetParam().count);
EXPECT_DATA_READS_AS(this->foregroundData, *blob, GetParam().offset, GetParam().count);
EXPECT_DATA_IS_ZEROES_OUTSIDE_OF(*blob, GetParam().offset, GetParam().count);
}
TEST_P(BlobReadWriteDataTest, WriteAndReadAfterLoading) {
blob->resize(GetParam().blobsize);
blob->write(this->foregroundData.data(), GetParam().offset, GetParam().count);
auto loaded = loadBlob(blob->blockId());
EXPECT_DATA_READS_AS(this->foregroundData, *loaded, GetParam().offset, GetParam().count);
EXPECT_DATA_IS_ZEROES_OUTSIDE_OF(*loaded, GetParam().offset, GetParam().count);
}
TEST_P(BlobReadWriteDataTest, OverwriteAndRead) {
blob->resize(GetParam().blobsize);
blob->write(this->backgroundData.data(), 0, GetParam().blobsize);
blob->write(this->foregroundData.data(), GetParam().offset, GetParam().count);
EXPECT_DATA_READS_AS(this->foregroundData, *blob, GetParam().offset, GetParam().count);
EXPECT_DATA_READS_AS_OUTSIDE_OF(this->backgroundData, *blob, GetParam().offset, GetParam().count);
}
TEST_P(BlobReadWriteDataTest, WriteWholeAndReadPart) {
blob->resize(GetParam().blobsize);
blob->write(this->backgroundData.data(), 0, GetParam().blobsize);
Data read(GetParam().count);
blob->read(read.data(), GetParam().offset, GetParam().count);
EXPECT_EQ(0, std::memcmp(read.data(), this->backgroundData.dataOffset(GetParam().offset), GetParam().count));
}
TEST_P(BlobReadWriteDataTest, WritePartAndReadWhole) {
blob->resize(GetParam().blobsize);
blob->write(this->backgroundData.data(), 0, GetParam().blobsize);
blob->write(this->foregroundData.data(), GetParam().offset, GetParam().count);
Data read = readBlob(*blob);
EXPECT_EQ(0, std::memcmp(read.data(), this->backgroundData.data(), GetParam().offset));
EXPECT_EQ(0, std::memcmp(read.dataOffset(GetParam().offset), this->foregroundData.data(), GetParam().count));
EXPECT_EQ(0, std::memcmp(read.dataOffset(GetParam().offset+GetParam().count), this->backgroundData.dataOffset(GetParam().offset+GetParam().count), GetParam().blobsize-GetParam().count-GetParam().offset));
}
}
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