[TT-807] add filter for empty array params

[alxberardi]

Why?

HTTParty v0.14.0 introduced this change:

• allow empty array to be used as param

Unfortunately, when submitting an empty array as a parameter, Rack interprets it as an array containing an empty string:

require 'rack'
Rack::Utils.parse_nested_query('array[]=') #=> {"array"=>[""]}

The workaround is to avoid sending empty arrays to Rack based web applications (such as Rails based QuickTravel)

[coveralls]

Coverage increased (+0.3%) to 76.827% when pulling 730d355 on TT-807-add-filter-for-empty-array-params into 43fc965 on master.

[coveralls]

Coverage increased (+0.3%) to 76.827% when pulling 730d355 on TT-807-add-filter-for-empty-array-params into 43fc965 on master.

[mnoack]

👍

[coveralls]

Coverage increased (+0.3%) to 76.827% when pulling c9ba7f3 on TT-807-add-filter-for-empty-array-params into 43fc965 on master.

[coveralls]

Coverage increased (+0.3%) to 76.827% when pulling c9ba7f3 on TT-807-add-filter-for-empty-array-params into 43fc965 on master.

[alvinypyim]

👍