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#include <gtest/gtest.h>
#include "blockstore/implementations/caching/CachingBlockStore2.h"
#include "blockstore/implementations/inmemory/InMemoryBlockStore2.h"
#include <cstddef>
using ::testing::Test;
using cpputils::Data;
using blockstore::inmemory::InMemoryBlockStore2;
using namespace blockstore::caching;
class CachingBlockStore2Test: public Test {
public:
CachingBlockStore2Test():
baseBlockStore(new InMemoryBlockStore2),
blockStore(std::move(cpputils::nullcheck(std::unique_ptr<InMemoryBlockStore2>(baseBlockStore)).value())) {
}
InMemoryBlockStore2 *baseBlockStore;
CachingBlockStore2 blockStore;
};
TEST_F(CachingBlockStore2Test, PhysicalBlockSize_zerophysical) {
EXPECT_EQ(0u, blockStore.blockSizeFromPhysicalBlockSize(0));
}
TEST_F(CachingBlockStore2Test, PhysicalBlockSize_zerovirtual) {
auto blockId = blockStore.create(Data(0));
blockStore.flush();
auto base = baseBlockStore->load(blockId).value();
EXPECT_EQ(0u, blockStore.blockSizeFromPhysicalBlockSize(base.size()));
}
TEST_F(CachingBlockStore2Test, PhysicalBlockSize_negativeboundaries) {
// This tests that a potential if/else in blockSizeFromPhysicalBlockSize that catches negative values has the
// correct boundary set. We test the highest value that is negative and the smallest value that is positive.
auto blockId = blockStore.create(Data(0));
blockStore.flush();
auto physicalSizeForVirtualSizeZero = baseBlockStore->load(blockId).value().size();
if (physicalSizeForVirtualSizeZero > 0) {
EXPECT_EQ(0u, blockStore.blockSizeFromPhysicalBlockSize(physicalSizeForVirtualSizeZero - 1));
}
EXPECT_EQ(0u, blockStore.blockSizeFromPhysicalBlockSize(physicalSizeForVirtualSizeZero));
EXPECT_EQ(1u, blockStore.blockSizeFromPhysicalBlockSize(physicalSizeForVirtualSizeZero + 1));
}
TEST_F(CachingBlockStore2Test, PhysicalBlockSize_positive) {
auto blockId = blockStore.create(Data(10*1024u));
blockStore.flush();
auto base = baseBlockStore->load(blockId).value();
EXPECT_EQ(10*1024u, blockStore.blockSizeFromPhysicalBlockSize(base.size()));
}
// TODO Add test cases that flushing the block store doesn't destroy things (i.e. all test cases from BlockStoreTest, but with flushes inbetween)
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