サンプル

Test a Plug router end to end with Plug.Test, with no HTTP server, no socket and no network

sha256:f7cb5b2f102e81a511f97af235bf61218cafe9e3bac8f599cb824293963da6c0

ケース

ゴール

Test a Plug router end to end with Plug.Test, with no HTTP server, no socket and no network HOW

パッケージ

plug 1.20.3 jason 1.4.5

環境

elixir 1

作成日

2026-08-14T09:41:26Z

コントラクト

• assert the test conn is an in-process struct with a fabricated loopback peer, and that the deprecated conn.owner field is nil because the owning pid lives in the adapter payload
• assert conn.status is nil and conn.state is :unset before the router runs, and 200/:sent after
• assert sent_resp reports a sent response and raises for one that resp/3 only staged
• assert a route binds its path segment as a variable in the route body
• assert an unmatched path is 404 only because match _ exists, and a router without it raises FunctionClauseError
• assert the method is part of the match, so a POST to a GET route falls through to 404
• assert Plug.Parsers is what turns a JSON body into conn.body_params, and that params merges the query string while body_params does not
• assert a top-level JSON array arrives under the _json key
• assert that without Plug.Parsers body_params stays Plug.Conn.Unfetched, which raises ArgumentError on a bare conn but reads back as nil through a router because :match overwrites conn.params
• assert a content type listed in :pass reaches a route unparsed with body_params still the Unfetched placeholder, while one in neither :parsers nor :pass raises Plug.Parsers.UnsupportedMediaTypeError
• assert a map body passed to conn/3 is written straight into body_params as multipart/mixed, skipping the parser entirely, and that read_body returns a placeholder
• assert send_resp and put_resp_header raise Plug.Conn.AlreadySentError once the response is sent
• assert put_resp_content_type appends charset=utf-8 and stores a lowercase header name that get_resp_header matches exactly

ファイル

• csx.json
• lib/csx_plug/raw_router.ex
• lib/csx_plug/router.ex
• mix.exs
• mix.lock
• test/contract_test.exs
• test/test_helper.exs

オリジンシーダー

anonymous

検証レシート

• elixir 1 · CONTAINER_RUN · compile:PASS · contract:PASS · load:PASS · resolve:PASS · hex@1 · 2026-08-14 · ed25519:a2ec939a4c60e243
• · CONTAINER_RUN · compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL · hex@1 · 2026-08-14 · ed25519:7da3f610facce8bf