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(ns weepinbell.storage-test
(:require [clojure.test :refer [testing is deftest]]
[weepinbell.storage.edn-storage :as edns]
[weepinbell.storage.h2 :as h2]
[weepinbell.storage.worker :as worker]
[clojure.java.io :as io]
[clojure.spec.alpha :as s]
[weepinbell.storage.spec]))
;; preparing storages to test
(def test-edn-file "tmp/testfile")
(when (.exists (io/file test-edn-file))
(io/delete-file test-edn-file))
(def test-h2-db "tmp/testh2")
(when (.exists (io/file (str test-h2-db ".mv.db")))
(io/delete-file (str test-h2-db ".mv.db")))
(def edn-storage (edns/use-store test-edn-file))
(def h2-storage (h2/use-store test-h2-db))
(def storages [["bare-edn" edn-storage]
["bare-h2" h2-storage]
["worker-edn" (last (worker/start edn-storage))]
["worker-h2" (last (worker/start h2-storage))]])
;; check if storages conform spec
(def spec-check (partial s/valid? :weepinbell.storage.spec/vtable))
(deftest storage-conformity-test
(testing "storage should conform storage spec."
(with-redefs [weepinbell.storage.edn-storage/file-exists? (fn [_] true)]
(doseq [storage storages]
(is (spec-check (last storage))))))
(testing "spec-check invalid storage vtables"
(doseq [check [{:get-by-domain (fn [_])}
{:append (fn [_]) :get (fn [_])}
"I am storage. Trust me"
nil 1 [] {}]]
(is (not (spec-check check))))))
;; basic general test suite
(defmacro wait-til! [condition-expr & body]
`(let [~'start (System/currentTimeMillis)]
(loop []
(if (try ~condition-expr (catch Throwable ~'_ false))
(do ~@body)
(when (< (- (System/currentTimeMillis) ~'start) 10000)
(Thread/sleep 10)
(recur))))))
(defn- wm= [& wms]
(->> (map :webmention wms)
(map #(select-keys % [:target :source :modified]))
(apply =)))
(defn- test-append-and-get [storage]
(let [id "123456789"
source "https://source.net"
target "https://target.net"
data {:webmention {:source source
:target target
:id id
:modified (System/currentTimeMillis)}}]
((:append storage) data)
(wait-til! ((:get storage) id))
(is (wm= data ((:get storage) id)))
(is (wm= data ((:get storage) source target)))
((:delete storage) id)
(wait-til! (nil? ((:get storage) id)))
(is (nil? ((:get storage) id)))))
(defn- test-append-and-get-list [storage]
(let [domain "target.com"
data [{:webmention {:source "https://source.net"
:target (str "https://" domain "/a")
:id "35231"
:modified (System/currentTimeMillis)}}
{:webmention {:source "https://source.net"
:target (str "https://" domain "/b")
:id "232425"
:modified (System/currentTimeMillis)}}]
ids (map #(:id (:webmention %)) data)]
(doseq [item data]
((:append storage) item))
(wait-til! (->> data
(map (fn [item] (get-in item [:webmention :id])))
(every? #((:get storage) %))))
(is (= (count data) (count ((:get-by-domain storage) domain))))
(is (= 1 (count ((:get-by-domain storage) domain "/b"))))
(doseq [id ids]
((:delete storage) id))
(wait-til! (= 0 (count ((:get-by-domain storage) domain))))
(is (= 0 (count ((:get-by-domain storage) domain))))))
(defn- test-update [storage]
(let [id "987654321"
source "https://source.com"
target "https://target.com"
data {:webmention {:id id
:source source
:target target
:modified (System/currentTimeMillis)}}
data-wm (:webmention data)
data-new (assoc data :webmention
(assoc data-wm :modified
(+ (System/currentTimeMillis) 1)))
data-neo (assoc data-new :webmention
(assoc data-wm :modified
(+ (System/currentTimeMillis) 2)))]
((:append storage) data)
(wait-til! ((:get storage) id))
((:update storage) id data-new)
(wait-til! (wm= data-new ((:get storage) id)))
(is (wm= data-new ((:get storage) id)))
((:update storage) source target data-neo)
(wait-til! (wm= data-neo ((:get storage) source target)))
(is (wm= data-neo ((:get storage) source target)))
((:delete storage) id)))
(defn- test-get-empty [storage]
(is (nil? ((:get storage) nil "target")))
(is (nil? ((:get storage) "source" nil)))
(is (nil? ((:get storage) nil nil))))
(defn- test-friends [storage]
(let [id "123456789", mf {}
photo "https://source.net/photo.png"
data {:webmention {:id id
:source "https://source.net"
:target "https://target.net"
:modified (System/currentTimeMillis)}
:jf2 mf
:extra {:proxied-photo photo}}]
((:append storage) data)
(wait-til! ((:get storage) id))
(let [retrieved ((:get storage) id)]
(is (= photo (get-in retrieved [:extra :proxied-photo])))
(is (= mf (:jf2 retrieved))))
((:delete storage) id)
(wait-til! (not ((:get storage) id)))))
(defn- test-result-order [storage]
(let [domain "target.com"
data [{:webmention {:source "https://source.net"
:target (str "https://" domain "/a")
:id "135234"
:modified (System/currentTimeMillis)}}
{:webmention {:source "https://source.net"
:target (str "https://" domain "/b")
:id "24645"
:modified (+ (System/currentTimeMillis) 1)}}
{:webmention {:source "https://source.net"
:target (str "https://" domain "/b")
:id "334324"
:modified (+ (System/currentTimeMillis) 2)}}
{:webmention {:source "https://source.net"
:target (str "https://" domain "/b")
:id "45343"
:modified (+ (System/currentTimeMillis) 3)}}]
ids (map #(:id (:webmention %)) data)]
(doseq [item (shuffle data)]
((:append storage) item))
(wait-til! (every? #((:get storage) (:id (:webmention %))) data))
(let [result ((:get-by-domain storage) domain)]
(is (= (mapv #(get-in % [:webmention :id]) result)
(mapv #(get-in % [:webmention :id]) data))))
(doseq [id ids] ((:delete storage) id))
(wait-til! (every? #(not ((:get storage) (:id (:webmention %)))) data))))
(deftest general-storage-test
(doseq [storage storages]
(doseq [testcase [[test-append-and-get "appending webmention"]
[test-append-and-get-list "appending and getting by domain"]
[test-update "updating webmentions"]
[test-get-empty "making sure getting empty won't throw"]
[test-friends "friends of webmention (microformats, proxied-photo) can be stored correctly"]
[test-result-order "result should be in chronological order"]]]
(testing (str (first storage) ": " (last testcase))
((first testcase) (last storage))))))
;; storage worker specifics
(deftest storage-worker-test
(testing "Storage worker should keep working if some Exceptions occur"
(let [signal (promise)
[stop store] (-> edn-storage
(assoc :append (fn [_] (throw (Exception.))))
(assoc :delete (fn [& _] (deliver signal true)))
worker/start)]
((:append store) {}) ;; this throws Exception inside worker
(Thread/sleep 50)
((:delete store) {}) ;; if Exception was caught, this should gets done
(Thread/sleep 50)
(is signal)
(stop))))
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