libcryfs/test/interface/helpers/BlockStoreWithRandomKeysTest.cpp
2015-02-17 00:23:33 +01:00

119 lines
3.4 KiB
C++

#include <messmer/blockstore/interface/helpers/BlockStoreWithRandomKeys.h>
#include "google/gtest/gtest.h"
#include "google/gmock/gmock.h"
using ::testing::Test;
using ::testing::_;
using ::testing::Return;
using ::testing::Invoke;
using std::string;
using std::unique_ptr;
using std::make_unique;
using namespace blockstore;
class BlockStoreWithRandomKeysMock: public BlockStoreWithRandomKeys {
public:
unique_ptr<Block> create(const Key &key, size_t size) {
return unique_ptr<Block>(do_create(key, size));
}
MOCK_METHOD2(do_create, Block*(const Key &, size_t));
unique_ptr<Block> load(const Key &key) {
return unique_ptr<Block>(do_load(key));
}
MOCK_METHOD1(do_load, Block*(const Key &));
};
class BlockMock: public Block {
public:
BlockMock(): Block(Key::CreateRandomKey()) {}
MOCK_METHOD0(data, void*());
MOCK_CONST_METHOD0(data, const void*());
MOCK_METHOD0(flush, void());
MOCK_CONST_METHOD0(size, size_t());
MOCK_CONST_METHOD0(key, const Key&());
};
class BlockStoreWithRandomKeysTest: public Test {
public:
BlockStoreWithRandomKeysMock blockStoreMock;
BlockStore &blockStore = blockStoreMock;
const blockstore::Key key = Key::FromString("1491BB4932A389EE14BC7090AC772972");
};
TEST_F(BlockStoreWithRandomKeysTest, SizeIsPassedThrough0) {
EXPECT_CALL(blockStoreMock, do_create(_, 0)).WillOnce(Return(new BlockMock));
blockStore.create(0);
}
TEST_F(BlockStoreWithRandomKeysTest, SizeIsPassedThrough1) {
EXPECT_CALL(blockStoreMock, do_create(_, 1)).WillOnce(Return(new BlockMock));
blockStore.create(1);
}
TEST_F(BlockStoreWithRandomKeysTest, SizeIsPassedThrough1024) {
EXPECT_CALL(blockStoreMock, do_create(_, 1024)).WillOnce(Return(new BlockMock));
blockStore.create(1024);
}
TEST_F(BlockStoreWithRandomKeysTest, KeyHasCorrectSize) {
EXPECT_CALL(blockStoreMock, do_create(_, _)).WillOnce(Invoke([](const Key &key, size_t) {
EXPECT_EQ(Key::KEYLENGTH_STRING, key.ToString().size());
return new BlockMock;
}));
blockStore.create(1024);
}
TEST_F(BlockStoreWithRandomKeysTest, TwoBlocksGetDifferentKeys) {
Key first_key = key;
EXPECT_CALL(blockStoreMock, do_create(_, _))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
first_key = key;
return new BlockMock;
}))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
EXPECT_NE(first_key, key);
return new BlockMock;
}));
blockStore.create(1024);
blockStore.create(1024);
}
TEST_F(BlockStoreWithRandomKeysTest, WillTryADifferentKeyIfKeyAlreadyExists) {
Key first_key = key;
EXPECT_CALL(blockStoreMock, do_create(_, _))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
first_key = key;
return nullptr;
}))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
EXPECT_NE(first_key, key);
return new BlockMock;
}));
blockStore.create(1024);
}
TEST_F(BlockStoreWithRandomKeysTest, WillTryADifferentKeyIfKeyAlreadyExistsTwoTimes) {
Key first_key = key;
EXPECT_CALL(blockStoreMock, do_create(_, _))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
first_key = key;
return nullptr;
}))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
first_key = key;
return nullptr;
}))
.WillOnce(Invoke([&first_key](const Key &key, size_t) {
EXPECT_NE(first_key, key);
return new BlockMock;
}));
blockStore.create(1024);
}