@Rule
public ExpectedException expectedException = ExpectedException.none();
@Before
public void setUp() throws Exception {
FakeClock clock = new FakeClock();
clock.advance(Amount.of(12345L, Time.SECONDS));
timestampMs = clock.nowMillis();
UUIDGenerator tokenGenerator = createMock(UUIDGenerator.class);
EasyMock.expect(tokenGenerator.createNew()).andReturn(TOKEN).anyTimes();
lockManager = new LockManagerImpl(MemStorage.newEmptyStorage(), clock, tokenGenerator);