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# frozen_string_literal: true
require_relative 'helper'
describe Rack::Config do
it "accept a block that modifies the environment" do
app = Rack::Builder.new do
use Rack::Lint
use Rack::Config do |env|
env['greeting'] = 'hello'
end
run lambda { |env|
[200, { 'Content-Type' => 'text/plain' }, [env['greeting'] || '']]
}
end
response = Rack::MockRequest.new(app).get('/')
response.body.must_equal 'hello'
end
end
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