2026-05-29 11:24:58 +02:00

62 lines
2.4 KiB
Clojure

;; This Source Code Form is subject to the terms of the Mozilla Public
;; License, v. 2.0. If a copy of the MPL was not distributed with this
;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
;;
;; Copyright (c) KALEIDOS INC Sucursal en España SL
(ns frontend-tests.helpers.http
"Helpers for intercepting and mocking the global `fetch` function in
ClojureScript tests. The underlying HTTP layer (`app.util.http`) calls
`(js/fetch url params)` directly, so replacing `globalThis.fetch` is the
correct interception point."
(:require
[app.common.transit :as t]
[clojure.string :as str]))
(defn install-fetch-mock!
"Replaces the global `js/fetch` with `handler-fn`.
`handler-fn` is called with `[url opts]` where `url` is a plain string
such as `\"http://localhost/api/main/methods/some-cmd\"`. It must return
a JS Promise that resolves to a fetch Response object.
Returns the previous `globalThis.fetch` value so callers can restore it
with [[restore-fetch!]]."
[handler-fn]
(let [prev (.-fetch js/globalThis)]
(set! (.-fetch js/globalThis) handler-fn)
prev))
(defn restore-fetch!
"Restores `globalThis.fetch` to `orig` (the value returned by
[[install-fetch-mock!]])."
[orig]
(set! (.-fetch js/globalThis) orig))
(defn make-json-response
"Creates a minimal fetch `Response` that returns `body-clj` serialised as
plain JSON with HTTP status 200."
[body-clj]
(let [json-str (.stringify js/JSON (clj->js body-clj))
headers (js/Headers. #js {"content-type" "application/json"})]
(js/Response. json-str #js {:status 200 :headers headers})))
(defn make-transit-response
"Creates a minimal fetch `Response` that returns `body-clj` serialised as
Transit+JSON with HTTP status 200. Use this helper when the code under
test inspects typed values (UUIDs, keywords, etc.) from the response body,
since the HTTP layer only decodes transit+json content automatically."
[body-clj]
(let [transit-str (t/encode-str body-clj {:type :json-verbose})
headers (js/Headers. #js {"content-type" "application/transit+json"})]
(js/Response. transit-str #js {:status 200 :headers headers})))
(defn url->cmd
"Extracts the RPC command keyword from a URL string.
Example: `\"http://…/api/main/methods/create-upload-session\"`
→ `:create-upload-session`."
[url]
(when (string? url)
(keyword (last (str/split url #"/")))))