thin-provisioning-tools/unit-tests/cache_superblock_t.cc
2013-10-17 11:45:20 +01:00

156 lines
3.1 KiB
C++

#include "gmock/gmock.h"
#include "base/bits.h"
#include "caching/superblock.h"
using namespace base;
using namespace caching;
using namespace superblock_damage;
using namespace testing;
//----------------------------------------------------------------
namespace {
class damage_visitor_mock : public damage_visitor {
public:
MOCK_METHOD1(visit, void(superblock_corrupt const &));
MOCK_METHOD1(visit, void(superblock_invalid const &));
};
class CacheSuperblockTests : public Test {
public:
CacheSuperblockTests() {
}
void check() {
check_superblock(sb_, 100, visitor_);
}
void expect_invalid() {
EXPECT_CALL(visitor_, visit(Matcher<superblock_invalid const &>(_))).Times(1);
}
void check_invalid() {
expect_invalid();
check();
}
damage_visitor_mock visitor_;
superblock sb_;
};
bool operator ==(superblock_corrupt const &lhs, superblock_corrupt const &rhs) {
return lhs.get_desc() == rhs.get_desc();
}
bool operator ==(superblock_invalid const &lhs, superblock_invalid const &rhs) {
return lhs.get_desc() == rhs.get_desc();
}
ostream &operator <<(ostream &out, damage const &d) {
out << d.get_desc();
return out;
}
ostream &operator <<(ostream &out, superblock_invalid const &d) {
out << "superblock_invalid: " << d.get_desc();
return out;
}
}
//----------------------------------------------------------------
TEST_F(CacheSuperblockTests, default_constructed_superblock_is_valid)
{
check();
}
TEST_F(CacheSuperblockTests, clean_shutdown_flag_is_valid)
{
sb_.flags.set_flag(superblock_flags::CLEAN_SHUTDOWN);
check();
}
TEST_F(CacheSuperblockTests, unhandled_flags_gets_set_correctly_and_is_invalid)
{
uint32_t bad_flag = 1 << 12;
sb_.flags = superblock_flags(bad_flag | 1);
ASSERT_THAT(sb_.flags.get_unhandled_flags(), Eq(bad_flag));
check_invalid();
}
TEST_F(CacheSuperblockTests, blocknr_is_in_range)
{
sb_.blocknr = 101;
check_invalid();
}
TEST_F(CacheSuperblockTests, magic_is_checked)
{
sb_.magic = 12345;
check_invalid();
}
TEST_F(CacheSuperblockTests, version_gt_1_is_checked)
{
sb_.version = 2;
check_invalid();
}
TEST_F(CacheSuperblockTests, version_lt_1_is_checked)
{
sb_.version = 0;
check_invalid();
}
TEST_F(CacheSuperblockTests, policy_name_must_be_null_terminated)
{
for (unsigned i = 0; i < CACHE_POLICY_NAME_SIZE; i++)
sb_.policy_name[i] = 'a';
check_invalid();
}
TEST_F(CacheSuperblockTests, policy_hint_size_checked)
{
sb_.policy_hint_size = 3;
check_invalid();
sb_.policy_hint_size = 129;
check_invalid();
sb_.policy_hint_size = 132;
check_invalid();
}
TEST_F(CacheSuperblockTests, metadata_block_size_checked)
{
sb_.metadata_block_size = 16;
check_invalid();
}
TEST_F(CacheSuperblockTests, compat_flags_checked)
{
sb_.compat_flags = 1;
check_invalid();
}
TEST_F(CacheSuperblockTests, compat_ro_flags_checked)
{
sb_.compat_ro_flags = 1;
check_invalid();
}
TEST_F(CacheSuperblockTests, valid_incompat_flags_are_checked)
{
set_bit(sb_.incompat_flags, VARIABLE_HINT_SIZE_BIT);
check();
}
TEST_F(CacheSuperblockTests, invalid_incompat_flags_checked)
{
set_bit(sb_.incompat_flags, 15);
check_invalid();
}
//----------------------------------------------------------------