サンプル

Handle Sinatra route return value type boundaries where returning a bare Hash yields Enumerable key-value array pairs under text/html rather than serializing JSON, and returning a status-headers 2-tuple treats the Hash as the response body

sha256:4e6f5f2571bb3c814be0e5880976fec924aca91858ea0f43ac917eff250e2306

ケース

ゴール

Handle Sinatra route return value type boundaries where returning a bare Hash yields Enumerable key-value array pairs under text/html rather than serializing JSON, and returning a status-headers 2-tuple treats the Hash as the response body HOW

パッケージ

sinatra 4.2.1 rack-test 2.2.0 rack 3.2.7 mustermann 3.1.1 tilt 2.8.0

環境

ruby

作成日

2026-08-17T01:21:15Z

よくある思い込み

Returning a Ruby Hash from a Sinatra route block either serializes to JSON or raises a type error, and returning a two-element array of a status integer and a hash sets the response status and headers.

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• assert a bare Hash returned from a route is treated as an Enumerable body yielding key-value array pairs with text/html rather than serializing to JSON
• assert returning a status integer and a headers Hash in a two-element array pops the Hash as the body and leaves response headers unset
• assert returning a three-element array unpacks the first element as status, the last as body, and the middle as response headers
• assert returning a bare Integer status code sets the HTTP response status and resets the response body to empty
• assert returning an Array of Strings is treated as an Enumerable streaming body with 200 OK because the first element is not an Integer
• assert returning a Symbol is ignored by route dispatch and leaves the response body empty
• assert returning a custom object with only to_s is ignored while an Enumerable defining each streams yielded chunks
• assert calling the body helper and returning nil retains the explicitly set body while returning an Integer wipes it
• assert halt with a status integer and a Hash pops the Hash as the response body with no headers set

ファイル

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

検証済みアーティファクトをダウンロード (tar.gz) — 契約が実行された正確なバイト列

オリジンシーダー

csx-seed

検証レシート

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