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require_relative 'test_helper'
describe Rack::Cache do
def dumb_app(_env)
body = block_given? ? [yield] : ['Hi']
[ 200, {'content-type' => 'text/plain'}, body ]
end
before { @app = method(:dumb_app) }
it 'takes a backend and returns a middleware component' do
assert Rack::Cache.new(@app).respond_to? :call
end
it 'takes an options Hash' do
Rack::Cache.new(@app, {})
end
it 'sets options provided in the options Hash' do
object = Rack::Cache.new(@app, :foo => 'bar', 'foo.bar' => 'bling')
object.options['foo.bar'].must_equal 'bling'
object.options['rack-cache.foo'].must_equal 'bar'
end
it 'takes a block; executes it during initialization' do
state, object = 'not invoked', nil
instance =
Rack::Cache.new @app do |cache|
object = cache
state = 'invoked'
assert cache.respond_to? :set
end
state.must_equal 'invoked'
object.must_equal instance
end
end
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