libcryfs/test/implementations/ondisk/OnDiskBlockTest/OnDiskBlockCreateTest.cpp
2015-07-21 18:19:34 +02:00

84 lines
2.7 KiB
C++

#include "../../../../implementations/ondisk/OnDiskBlock.h"
#include "google/gtest/gtest.h"
#include <messmer/cpp-utils/tempfile/TempFile.h>
#include <messmer/cpp-utils/tempfile/TempDir.h>
using ::testing::Test;
using ::testing::WithParamInterface;
using ::testing::Values;
using cpputils::Data;
using cpputils::TempFile;
using cpputils::TempDir;
using cpputils::unique_ref;
using namespace blockstore;
using namespace blockstore::ondisk;
namespace bf = boost::filesystem;
class OnDiskBlockCreateTest: public Test {
public:
OnDiskBlockCreateTest()
// Don't create the temp file yet (therefore pass false to the TempFile constructor)
: dir(),
key(Key::FromString("1491BB4932A389EE14BC7090AC772972")),
file(dir.path() / key.ToString(), false) {
}
TempDir dir;
Key key;
TempFile file;
};
TEST_F(OnDiskBlockCreateTest, CreatingBlockCreatesFile) {
EXPECT_FALSE(bf::exists(file.path()));
auto block = OnDiskBlock::CreateOnDisk(dir.path(), key, Data(0));
EXPECT_TRUE(bf::exists(file.path()));
EXPECT_TRUE(bf::is_regular_file(file.path()));
}
TEST_F(OnDiskBlockCreateTest, CreatingExistingBlockReturnsNull) {
auto block1 = OnDiskBlock::CreateOnDisk(dir.path(), key, Data(0));
auto block2 = OnDiskBlock::CreateOnDisk(dir.path(), key, Data(0));
EXPECT_TRUE((bool)block1);
EXPECT_FALSE((bool)block2);
}
class OnDiskBlockCreateSizeTest: public OnDiskBlockCreateTest, public WithParamInterface<size_t> {
public:
unique_ref<OnDiskBlock> block;
Data ZEROES;
OnDiskBlockCreateSizeTest():
block(OnDiskBlock::CreateOnDisk(dir.path(), key, std::move(Data(GetParam()).FillWithZeroes())).value()),
ZEROES(block->size())
{
ZEROES.FillWithZeroes();
}
};
INSTANTIATE_TEST_CASE_P(OnDiskBlockCreateSizeTest, OnDiskBlockCreateSizeTest, Values(0, 1, 5, 1024, 10*1024*1024));
TEST_P(OnDiskBlockCreateSizeTest, OnDiskSizeIsCorrect) {
Data fileContent = Data::LoadFromFile(file.path()).value();
EXPECT_EQ(GetParam(), fileContent.size());
}
TEST_P(OnDiskBlockCreateSizeTest, OnDiskBlockIsZeroedOut) {
Data fileContent = Data::LoadFromFile(file.path()).value();
EXPECT_EQ(ZEROES, fileContent);
}
// This test is also tested by OnDiskBlockStoreTest, but there the block is created using the BlockStore interface.
// Here, we create it using OnDiskBlock::CreateOnDisk()
TEST_P(OnDiskBlockCreateSizeTest, InMemorySizeIsCorrect) {
EXPECT_EQ(GetParam(), block->size());
}
// This test is also tested by OnDiskBlockStoreTest, but there the block is created using the BlockStore interface.
// Here, we create it using OnDiskBlock::CreateOnDisk()
TEST_P(OnDiskBlockCreateSizeTest, InMemoryBlockIsZeroedOut) {
EXPECT_EQ(0, std::memcmp(ZEROES.data(), block->data(), block->size()));
}