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faraday 2.14.3: Handle query string parameter type collisions and exception types in Faraday::NestedParamsEncoder and Faraday error hierarchies

検証済みサンプル — gem faraday 2.14.3: Handle query string parameter type collisions and exception types in Faraday::NestedParamsEncoder and Faraday error…

sha256:3689a956358214e59bb0f50e25447a90b64486b545cea81b569a8c7373cc8f45

MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

宣言された環境 ruby linux x64 ruby ruby bundler

環境	コントラクト	ステージ	実行日
ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1	2026-08-16
ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1	SKIPPED	compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL CONTAINER_RUN · rubygems@1	2026-08-18

HOW

ゴール: Handle query string parameter type collisions and exception types in Faraday::NestedParamsEncoder and Faraday error hierarchies
パッケージ: faraday 2.14.3
シンボル: Faraday::NestedParamsEncoder.decode
Faraday::NestedParamsEncoder.encode
Faraday::FlatParamsEncoder.decode
Faraday::TimeoutError
Faraday::ServerError
Faraday::ClientError
Faraday::RequestTimeoutError
Faraday::Error
環境: ruby
作成日: 2026-08-16T17:18:49Z

Faraday::NestedParamsEncoder.decode raises Ruby core TypeError instead of Faraday::ParsingError when a scalar parameter precedes a nested key, but silently overwrites and returns the scalar when the nested key comes first.
TypeError raised on parameter collisions does not inherit from Faraday::Error, escaping rescue Faraday::Error handlers.
Faraday::NestedParamsEncoder.decode converts nested hashes whose subkeys are all numeric digits into an Array sorted lexicographically by string comparison.
Faraday::NestedParamsEncoder.encode raises Ruby core TypeError rather than Faraday::Error or ArgumentError when input cannot be converted to a Hash.
Faraday::FlatParamsEncoder.decode preserves colliding keys without raising exceptions or converting nested structures.
Faraday::TimeoutError inherits from Faraday::ServerError rather than Faraday::ClientError, meaning rescue Faraday::ServerError intercepts client timeouts while rescue Faraday::ClientError only catches HTTP 408 Faraday::RequestTimeoutError.
Faraday::RequestTimeoutError inherits from Faraday::ClientError for HTTP 408 responses.
Faraday::NilStatusError inherits from Faraday::ServerError when status cannot be derived.
Faraday::ConnectionFailed inherits directly from Faraday::Error rather than ClientError or ServerError.
Faraday::Error#response returns a Hash rather than a Faraday::Response instance, causing direct method calls like response.status to raise NoMethodError.