libcryfs/test/utils/BlockStoreUtilsTest.cpp
2015-04-25 16:43:52 +02:00

114 lines
3.4 KiB
C++

#include "../../implementations/testfake/FakeBlockStore.h"
#include <messmer/cpp-utils/data/DataFixture.h>
#include "../../utils/BlockStoreUtils.h"
#include "google/gtest/gtest.h"
#include <memory>
using ::testing::Test;
using ::testing::WithParamInterface;
using ::testing::Values;
using std::make_unique;
using std::unique_ptr;
using cpputils::Data;
using cpputils::DataFixture;
using namespace blockstore;
using namespace blockstore::utils;
using blockstore::testfake::FakeBlockStore;
class BlockStoreUtilsTest: public Test {
public:
unsigned int SIZE = 1024 * 1024;
BlockStoreUtilsTest():
ZEROES(SIZE),
dataFixture(DataFixture::generate(SIZE)),
blockStore(make_unique<FakeBlockStore>()) {
ZEROES.FillWithZeroes();
}
Data ZEROES;
Data dataFixture;
unique_ptr<BlockStore> blockStore;
};
TEST_F(BlockStoreUtilsTest, FillWithZeroes) {
auto block = blockStore->create(Data(SIZE));
block->write(dataFixture.data(), 0, SIZE);
EXPECT_NE(0, std::memcmp(ZEROES.data(), block->data(), SIZE));
fillWithZeroes(block.get());
EXPECT_EQ(0, std::memcmp(ZEROES.data(), block->data(), SIZE));
}
class BlockStoreUtilsTest_CopyToNewBlock: public BlockStoreUtilsTest {};
TEST_F(BlockStoreUtilsTest_CopyToNewBlock, CopyEmptyBlock) {
auto block = blockStore->create(Data(0));
auto block2 = copyToNewBlock(blockStore.get(), *block);
EXPECT_EQ(0u, block2->size());
}
TEST_F(BlockStoreUtilsTest_CopyToNewBlock, CopyZeroBlock) {
auto block = blockStore->create(ZEROES);
auto block2 = copyToNewBlock(blockStore.get(), *block);
EXPECT_EQ(SIZE, block2->size());
EXPECT_EQ(0, std::memcmp(ZEROES.data(), block2->data(), SIZE));
}
TEST_F(BlockStoreUtilsTest_CopyToNewBlock, CopyDataBlock) {
auto block = blockStore->create(Data(SIZE));
block->write(dataFixture.data(), 0, SIZE);
auto block2 = copyToNewBlock(blockStore.get(), *block);
EXPECT_EQ(SIZE, block2->size());
EXPECT_EQ(0, std::memcmp(dataFixture.data(), block2->data(), SIZE));
}
TEST_F(BlockStoreUtilsTest_CopyToNewBlock, OriginalBlockUnchanged) {
auto block = blockStore->create(Data(SIZE));
block->write(dataFixture.data(), 0, SIZE);
auto block2 = copyToNewBlock(blockStore.get(), *block);
EXPECT_EQ(SIZE, block->size());
EXPECT_EQ(0, std::memcmp(dataFixture.data(), block->data(), SIZE));
}
class BlockStoreUtilsTest_CopyToExistingBlock: public BlockStoreUtilsTest {};
TEST_F(BlockStoreUtilsTest_CopyToExistingBlock, CopyEmptyBlock) {
auto block = blockStore->create(Data(0));
auto block2 = blockStore->create(Data(0));
copyTo(block2.get(), *block);
}
TEST_F(BlockStoreUtilsTest_CopyToExistingBlock, CopyZeroBlock) {
auto block = blockStore->create(ZEROES);
auto block2 = blockStore->create(Data(SIZE));
block2->write(dataFixture.data(), 0, SIZE);
copyTo(block2.get(), *block);
EXPECT_EQ(0, std::memcmp(ZEROES.data(), block2->data(), SIZE));
}
TEST_F(BlockStoreUtilsTest_CopyToExistingBlock, CopyDataBlock) {
auto block = blockStore->create(Data(SIZE));
block->write(dataFixture.data(), 0, SIZE);
auto block2 = blockStore->create(Data(SIZE));
copyTo(block2.get(), *block);
EXPECT_EQ(0, std::memcmp(dataFixture.data(), block2->data(), SIZE));
}
TEST_F(BlockStoreUtilsTest_CopyToExistingBlock, OriginalBlockUnchanged) {
auto block = blockStore->create(Data(SIZE));
block->write(dataFixture.data(), 0, SIZE);
auto block2 = blockStore->create(Data(SIZE));
copyTo(block2.get(), *block);
EXPECT_EQ(0, std::memcmp(dataFixture.data(), block->data(), SIZE));
}