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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe API::Helpers::CommonHelpers do
include Rack::Test::Methods
subject do
Class.new(Grape::API) do
helpers API::Helpers::CommonHelpers
before do
coerce_nil_params_to_array!
end
params do
requires :id, type: String
optional :array, type: Array, coerce_with: ::API::Validations::Types::CommaSeparatedToArray.coerce
optional :array_of_strings, type: Array[String], coerce_with: ::API::Validations::Types::CommaSeparatedToArray.coerce
optional :array_of_ints, type: Array[Integer], coerce_with: ::API::Validations::Types::CommaSeparatedToIntegerArray.coerce
end
get ":id" do
params.to_json
end
end
end
def app
subject
end
describe '.coerce_nil_params_to_array!' do
let(:json_response) { Gitlab::Json.parse(last_response.body) }
it 'converts all nil parameters to empty arrays' do
get '/test?array=&array_of_strings=&array_of_ints='
expect(json_response['array']).to eq([])
expect(json_response['array_of_strings']).to eq([])
expect(json_response['array_of_ints']).to eq([])
end
it 'leaves non-nil parameters alone' do
get '/test?array=&array_of_strings=test,me&array_of_ints=1,2'
expect(json_response['array']).to eq([])
expect(json_response['array_of_strings']).to eq(%w[test me])
expect(json_response['array_of_ints']).to eq([1, 2])
end
end
end
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