nodejs redisClient with retry_strategy unit test












0














I am on learn unit testing phase using Sinon and Mocha with NYC report. I completely confuse how to cover this code



let client = redis.createClient({
retry_strategy: function(options) {
if (options.error) {
if (options.error.code === 'ECONNREFUSED') {
// End reconnecting on a specific error
// and flush all commands with a individual error
return new Error('The server refused the connection');
}
if (options.error.code === 'ECONNRESET') {
return new Error('The server reset the connection');
}
if (options.error.code === 'ETIMEDOUT') {
return new Error('The server timeouted the connection');
}
}
if (options.total_retry_time > 1000 * 60 * 60) {
// End reconnecting after a specific timeout and flush all commands
// with a individual error
logger.error('Retry time exhausted')
return new Error('Retry time exhausted');
}
if (options.attempt > 10) {
// End reconnecting with built in error
logger.error('Retry attempt exceed')
return undefined;
}
// reconnect after
return Math.min(options.attempt * 100, 3000);
},
...config, // my function pass this arguments
})


I tried to stub the redis.createClient but it seems not cover the retry_strategy (as a param) and it also ended up with unclosed coverage report.



Any thoughts or idea for me how to cover that retry_strategy statement and branches? or any approaches instead of stubbing?



Thank you










share|improve this question



























    0














    I am on learn unit testing phase using Sinon and Mocha with NYC report. I completely confuse how to cover this code



    let client = redis.createClient({
    retry_strategy: function(options) {
    if (options.error) {
    if (options.error.code === 'ECONNREFUSED') {
    // End reconnecting on a specific error
    // and flush all commands with a individual error
    return new Error('The server refused the connection');
    }
    if (options.error.code === 'ECONNRESET') {
    return new Error('The server reset the connection');
    }
    if (options.error.code === 'ETIMEDOUT') {
    return new Error('The server timeouted the connection');
    }
    }
    if (options.total_retry_time > 1000 * 60 * 60) {
    // End reconnecting after a specific timeout and flush all commands
    // with a individual error
    logger.error('Retry time exhausted')
    return new Error('Retry time exhausted');
    }
    if (options.attempt > 10) {
    // End reconnecting with built in error
    logger.error('Retry attempt exceed')
    return undefined;
    }
    // reconnect after
    return Math.min(options.attempt * 100, 3000);
    },
    ...config, // my function pass this arguments
    })


    I tried to stub the redis.createClient but it seems not cover the retry_strategy (as a param) and it also ended up with unclosed coverage report.



    Any thoughts or idea for me how to cover that retry_strategy statement and branches? or any approaches instead of stubbing?



    Thank you










    share|improve this question

























      0












      0








      0







      I am on learn unit testing phase using Sinon and Mocha with NYC report. I completely confuse how to cover this code



      let client = redis.createClient({
      retry_strategy: function(options) {
      if (options.error) {
      if (options.error.code === 'ECONNREFUSED') {
      // End reconnecting on a specific error
      // and flush all commands with a individual error
      return new Error('The server refused the connection');
      }
      if (options.error.code === 'ECONNRESET') {
      return new Error('The server reset the connection');
      }
      if (options.error.code === 'ETIMEDOUT') {
      return new Error('The server timeouted the connection');
      }
      }
      if (options.total_retry_time > 1000 * 60 * 60) {
      // End reconnecting after a specific timeout and flush all commands
      // with a individual error
      logger.error('Retry time exhausted')
      return new Error('Retry time exhausted');
      }
      if (options.attempt > 10) {
      // End reconnecting with built in error
      logger.error('Retry attempt exceed')
      return undefined;
      }
      // reconnect after
      return Math.min(options.attempt * 100, 3000);
      },
      ...config, // my function pass this arguments
      })


      I tried to stub the redis.createClient but it seems not cover the retry_strategy (as a param) and it also ended up with unclosed coverage report.



      Any thoughts or idea for me how to cover that retry_strategy statement and branches? or any approaches instead of stubbing?



      Thank you










      share|improve this question













      I am on learn unit testing phase using Sinon and Mocha with NYC report. I completely confuse how to cover this code



      let client = redis.createClient({
      retry_strategy: function(options) {
      if (options.error) {
      if (options.error.code === 'ECONNREFUSED') {
      // End reconnecting on a specific error
      // and flush all commands with a individual error
      return new Error('The server refused the connection');
      }
      if (options.error.code === 'ECONNRESET') {
      return new Error('The server reset the connection');
      }
      if (options.error.code === 'ETIMEDOUT') {
      return new Error('The server timeouted the connection');
      }
      }
      if (options.total_retry_time > 1000 * 60 * 60) {
      // End reconnecting after a specific timeout and flush all commands
      // with a individual error
      logger.error('Retry time exhausted')
      return new Error('Retry time exhausted');
      }
      if (options.attempt > 10) {
      // End reconnecting with built in error
      logger.error('Retry attempt exceed')
      return undefined;
      }
      // reconnect after
      return Math.min(options.attempt * 100, 3000);
      },
      ...config, // my function pass this arguments
      })


      I tried to stub the redis.createClient but it seems not cover the retry_strategy (as a param) and it also ended up with unclosed coverage report.



      Any thoughts or idea for me how to cover that retry_strategy statement and branches? or any approaches instead of stubbing?



      Thank you







      node.js unit-testing redis






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 13 at 3:57









      Adithya Visnu

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