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# frozen_string_literal: true
RSpec.shared_examples_for 'any rack application' do
it 'should not interfere with normal get requests' do
expect(get('/')).to be_ok
expect(body).to eq('ok')
end
it 'should not interfere with normal head requests' do
expect(head('/')).to be_ok
end
it 'should not leak changes to env' do
klass = described_class
detector = Struct.new(:app) do
def call(env)
was = env.dup
res = app.call(env)
was.each do |k, v|
next if env[k] == v
raise "env[#{k.inspect}] changed from #{v.inspect} to #{env[k].inspect}"
end
res
end
end
mock_app do
use Rack::Head
use(Rack::Config) { |e| e['rack.session'] ||= {} }
use detector
use klass
run DummyApp
end
expect(get('/..', foo: '<bar>')).to be_ok
end
it 'allows passing on values in env' do
klass = described_class
changer = Struct.new(:app) do
def call(env)
env['foo.bar'] = 42
app.call(env)
end
end
detector = Struct.new(:app) do
def call(env)
app.call(env)
end
end
expect_any_instance_of(detector).to receive(:call).with(
hash_including('foo.bar' => 42)
).and_call_original
mock_app do
use Rack::Head
use(Rack::Config) { |e| e['rack.session'] ||= {} }
use changer
use klass
use detector
run DummyApp
end
expect(get('/')).to be_ok
end
end
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