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# frozen_string_literal: true
require_relative 'helper'
separate_testing do
require_relative '../lib/rack/content_type'
require_relative '../lib/rack/lint'
require_relative '../lib/rack/mock_request'
end
describe Rack::ContentType do
def content_type(app, *args)
Rack::Lint.new Rack::ContentType.new(app, *args)
end
def request
Rack::MockRequest.env_for
end
it "set content-type to default text/html if none is set" do
app = lambda { |env| [200, {}, "Hello, World!"] }
headers = content_type(app).call(request)[1]
headers['content-type'].must_equal 'text/html'
end
it "set content-type to chosen default if none is set" do
app = lambda { |env| [200, {}, "Hello, World!"] }
headers =
content_type(app, 'application/octet-stream').call(request)[1]
headers['content-type'].must_equal 'application/octet-stream'
end
it "not change content-type if it is already set" do
app = lambda { |env| [200, { 'content-type' => 'foo/bar' }, "Hello, World!"] }
headers = content_type(app).call(request)[1]
headers['content-type'].must_equal 'foo/bar'
end
[100, 204, 304].each do |code|
it "not set content-type on #{code} responses" do
app = lambda { |env| [code, {}, []] }
response = content_type(app, "text/html").call(request)
response[1]['content-type'].must_be_nil
end
end
end
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