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# frozen_string_literal: true
require 'spec_helper'
describe 'Validator with instance variables' do
let(:validator_type) do
Class.new(Grape::Validations::Validators::Base) do
def validate_param!(_attr_name, _params)
if instance_variable_defined?(:@instance_variable) && @instance_variable
raise Grape::Exceptions::Validation.new(params: ['params'],
message: 'This should never happen')
end
@instance_variable = true
end
end
end
let(:app) do
Class.new(Grape::API) do
params do
optional :param_to_validate, instance_validator: true
optional :another_param_to_validate, instance_validator: true
end
get do
'noop'
end
end
end
before do
Grape::Validations.register_validator('instance_validator', validator_type)
end
after do
Grape::Validations.deregister_validator('instance_validator')
end
it 'passes validation every time' do
expect(validator_type).to receive(:new).exactly(4).times.and_call_original
2.times do
get '/', param_to_validate: 'value', another_param_to_validate: 'value'
expect(last_response.status).to eq 200
end
end
end
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