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authorLudovic Courtès <ludo@gnu.org>2019-08-29 15:59:16 +0200
committerLudovic Courtès <ludo@gnu.org>2019-09-02 15:25:01 +0200
commitba1c1853a79a5930ca7db7a6b368859f805df98d (patch)
tree18b06a520f1038e07053bd79bbbf3c473246778e /tests/swh.scm
parent9323ab550f3bcb75fcaefbb20847595974702d5b (diff)
downloadpatches-ba1c1853a79a5930ca7db7a6b368859f805df98d.tar
patches-ba1c1853a79a5930ca7db7a6b368859f805df98d.tar.gz
swh: Add hooks for rate limiting handling.
* guix/swh.scm (%allow-request?, %save-rate-limit-reset-time) (%general-rate-limit-reset-time): New variables. (request-rate-limit-reached?, update-rate-limit-reset-time!): New procedures. (call): Call '%allow-request?'. Change 'swh-error' protocol to pass METHOD in addition to URL. * tests/swh.scm ("rate limit reached") ("%allow-request? and request-rate-limit-reached?"): New tests.
Diffstat (limited to 'tests/swh.scm')
-rw-r--r--tests/swh.scm36
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/swh.scm b/tests/swh.scm
index 9a0da07ae1..e36c54e5fb 100644
--- a/tests/swh.scm
+++ b/tests/swh.scm
@@ -19,6 +19,7 @@
(define-module (test-swh)
#:use-module (guix swh)
#:use-module (guix tests http)
+ #:use-module (web response)
#:use-module (srfi srfi-64))
;; Test the JSON mapping machinery used in (guix swh).
@@ -68,6 +69,41 @@
(directory-entry-length entry)))
(lookup-directory "123"))))
+(test-equal "rate limit reached"
+ 3000000000
+ (let ((too-many (build-response
+ #:code 429
+ #:reason-phrase "Too many requests"
+
+ ;; Pretend we've reached the limit and it'll be reset in
+ ;; June 2065.
+ #:headers '((x-ratelimit-remaining . "0")
+ (x-ratelimit-reset . "3000000000")))))
+ (with-http-server `((,too-many "Too bad."))
+ (parameterize ((%swh-base-url (%local-url)))
+ (catch 'swh-error
+ (lambda ()
+ (lookup-origin "http://example.org/guix.git"))
+ (lambda (key url method response)
+ ;; Ensure the reset time was recorded.
+ (@@ (guix swh) %general-rate-limit-reset-time)))))))
+
+(test-assert "%allow-request? and request-rate-limit-reached?"
+ ;; Here we test two things: that the rate limit set above is in effect and
+ ;; that %ALLOW-REQUEST? is called, and that 'request-rate-limit-reached?'
+ ;; returns true.
+ (let* ((key (gensym "skip-request"))
+ (skip-if-limit-reached
+ (lambda (url method)
+ (or (not (request-rate-limit-reached? url method))
+ (throw key #t)))))
+ (parameterize ((%allow-request? skip-if-limit-reached))
+ (catch key
+ (lambda ()
+ (lookup-origin "http://example.org/guix.git")
+ #f)
+ (const #t)))))
+
(test-end "swh")
;; Local Variables: