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# frozen_string_literal: true
require 'spec_helper'
describe Grape::Validations::SingleAttributeIterator do
describe '#each' do
subject(:iterator) { described_class.new(validator, scope, params) }
let(:scope) { Grape::Validations::ParamsScope.new(api: Class.new(Grape::API)) }
let(:validator) { double(attrs: %i[first second]) }
context 'when params is a hash' do
let(:params) do
{ first: 'string', second: 'string' }
end
it 'yields params and every single attribute from the list' do
expect { |b| iterator.each(&b) }
.to yield_successive_args([params, :first, false, false], [params, :second, false, false])
end
end
context 'when params is an array' do
let(:params) do
[{ first: 'string1', second: 'string1' }, { first: 'string2', second: 'string2' }]
end
it 'yields every single attribute from the list for each of the array elements' do
expect { |b| iterator.each(&b) }.to yield_successive_args(
[params[0], :first, false, false], [params[0], :second, false, false],
[params[1], :first, false, false], [params[1], :second, false, false]
)
end
context 'empty values' do
let(:params) { [{}, '', 10] }
it 'marks params with empty values' do
expect { |b| iterator.each(&b) }.to yield_successive_args(
[params[0], :first, true, false], [params[0], :second, true, false],
[params[1], :first, true, false], [params[1], :second, true, false],
[params[2], :first, false, false], [params[2], :second, false, false]
)
end
end
context 'when missing optional value' do
let(:params) { [Grape::DSL::Parameters::EmptyOptionalValue, 10] }
it 'marks params with skipped values' do
expect { |b| iterator.each(&b) }.to yield_successive_args(
[params[0], :first, false, true], [params[0], :second, false, true],
[params[1], :first, false, false], [params[1], :second, false, false]
)
end
end
end
end
end
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