it("#_coreTimeCmd calls #command with params", function() {
      core._coreTimeCmd(0x50, 0xFF, callback);
      expect(core.command).to.be.calledOnce;
      expect(core.command)
        .to.be.calledWith(0x00, 0x50, [0x00, 0x00, 0x00, 0xFF], callback);