it('should decode payload when JWT is valid', () => {
   const token = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJpZGFtIiwiaWF0IjoxNDgzMjI4ODAwLCJleHAiOjQxMDI0NDQ4MDAsImF1ZCI6ImNtYyIsInN1YiI6ImNtYyJ9.Q9-gf315saUt007Gau0tBUxevcRwhEckLHzC82EVGIM'
   expect(JwtUtils.decodePayload(token)).to.be.deep.equal({
     aud: 'cmc',
     exp: 4102444800,
     iat: 1483228800,
     iss: 'idam',
     sub: 'cmc'
   })
 })

    ErrorHandling.apply(async (req: express.Request, res: express.Response, next: express.NextFunction): Promise<void> => {
      const jwt: string = JwtExtractor.extract(req)

      if (jwt) {
        try {
          await IdamClient.invalidateSession(jwt)
        } catch (error) {
          const { id } = JwtUtils.decodePayload(jwt)
          logger.error(`Failed invalidating JWT for userId  ${id}`)
        }

        const cookies = new Cookies(req, res)
        cookies.set(sessionCookie, '')
      }

      res.redirect(Paths.homePage.uri)
    })

 expect(() => JwtUtils.decodePayload('malformed-jwt')).to.throw(Error, 'Unable to parse JWT token: malformed-jwt')

 hasExpired (): boolean {
   const { exp } = JwtUtils.decodePayload(this.bearerToken)
   return moment().unix() >= exp
 }