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Prove Sinatra content negotiation with provides quality ranking and automatic Content-Type assignment alongside attachment, cache control, and ETag conditional request evaluation

sha256:22fb9ccb7f2ce387e2601d23d67c1cf392766258ed0a2edb8c21133802955b06

ケース

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Prove Sinatra content negotiation with provides quality ranking and automatic Content-Type assignment alongside attachment, cache control, and ETag conditional request evaluation HOW

パッケージ

sinatra 4.2.1 rack-test 2.2.0 rack 3.2.7 rack-protection 4.2.1 mustermann 3.1.1 minitest 5.27.0

環境

ruby

作成日

2026-08-17T12:17:20Z

コントラクト

• Sinatra negotiates Accept header quality values within a provides route to assign the matching Content-Type and cascades to 404 on unaccepted types while evaluating separate routes in strict declaration order.
• assert provides with multiple formats selects the format with the highest client Accept quality factor and sets Content-Type
• assert provides defaults to the first format in the list when the client Accept header is absent or wildcard */*
• assert provides rejects unmatched Accept headers with 404 and X-Cascade: pass
• assert separate routes sharing a path evaluate in top-down declaration order rather than by client quality factor preference
• assert custom MIME types registered via mime_type integrate with provides and content_type
• assert content_type appends charset=utf-8 to text MIME types while leaving binary types without charset parameters
• assert attachment sets Content-Disposition and infers Content-Type from filename
• assert cache_control and expires format Cache-Control directives and HTTP-date Expires headers
• assert etag halts with 304 on matching GET If-None-Match, supports weak tags, and enforces 412 Precondition Failed on mutating requests
• assert last_modified halts with 304 on equal or newer If-Modified-Since timestamps

ファイル

• Gemfile
• Gemfile.lock
• NOTES.md
• csx.json
• src/app.rb
• test/contract.rb

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• ruby 3 · linux debian/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9