contentstackCore
  ✅ should return default config when no config is passed
contentstackCore › logHandler
  ✅ should log an error message when level is "error" and data is provided
  ✅ should not log anything when level is "error" and no data is provided
  ✅ should log a message with the provided level and data
contentstackCore › retryCondition
  ✅ should return true when error response status is 429
  ✅ should return false when error response status is not 429
  ✅ should return false when error response is not present
contentstackCore › config.headers
  ✅ should include apiKey in headers when provided
  ✅ should include accessToken in headers when provided
  ✅ should not include apiKey in headers when not provided
  ✅ should not include accessToken in headers when not provided
contentstackCore › config.onError
  ✅ should call the onError function when an error occurs
  ✅ should not call the onError function when no error occurs

Contentstack Error
  ✅ should throw an error with proper details
  ✅ should throw an error with a default message if response or config is not present
  ✅ should throw an error with a default details if response data is not present
  ✅ should throw an error with proper details when response.data is not available

serialize
  ✅ should return blank string when passed empty params
  ✅ should return brackets structure when param contains array value
  ✅ should return non brackets string when param value is not array value
  ✅ should return query with encode string when passed query param
  ✅ should return brackets and query with encoded string when passed query param and array value

Request tests
  ✅ should fetch successfully data from an API
  ✅ should handle errors
  ✅ should throw error when host is required for live preview

retryRequestHandler
  ✅ should add retryCount to the request config
retryResponseHandler
  ✅ should return the response as-is
retryResponseErrorHandler
  ✅ should reject the promise if retryOnError is false
  ✅ should reject the promise if retryOnError is true
  ✅ should resolve the promise to 408 error if retryOnError is true and error code is ECONNABORTED
  ✅ should reject the promise if response status is 429 and retryCount exceeds retryLimit
  ✅ should reject the promise if response status is 401 and retryCount exceeds retryLimit
  ✅ should reject the promise if response status is 429 or 401 and retryCount is within limit
  ✅ should call the retry function if retryCondition is passed
  ✅ should reject to error when retryCondition is passed but retryLimit is exceeded