| ;; Licensed to the Apache Software Foundation (ASF) under one |
| ;; or more contributor license agreements. See the NOTICE file |
| ;; distributed with this work for additional information |
| ;; regarding copyright ownership. The ASF licenses this file |
| ;; to you under the Apache License, Version 2.0 (the |
| ;; "License"); you may not use this file except in compliance |
| ;; with the License. You may obtain a copy of the License at |
| ;; |
| ;; http://www.apache.org/licenses/LICENSE-2.0 |
| ;; |
| ;; Unless required by applicable law or agreed to in writing, software |
| ;; distributed under the License is distributed on an "AS IS" BASIS, |
| ;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ;; See the License for the specific language governing permissions and |
| ;; limitations under the License. |
| |
| (ns jepsen.flink.utils-test |
| (:require [clojure.test :refer :all]) |
| (:require [jepsen.flink.utils :refer [retry]])) |
| |
| (deftest retry-test |
| (testing "Single failure then result." |
| (let [counter (atom 0) |
| failing-once (fn [] (if (= @counter 0) |
| (do (swap! counter inc) |
| (throw (Exception. "Expected"))) |
| "result"))] |
| (is (= "result" (retry failing-once :delay 0))))) |
| |
| (testing "Exhaust all attempts." |
| (let [failing-always (fn [] (throw (Exception. "Expected")))] |
| (is (nil? (retry failing-always :retries 1 :delay 0 :fallback :nil))))) |
| |
| (testing "Propagate exception." |
| (let [failing-always (fn [] (throw (Exception. "Expected")))] |
| (is (thrown-with-msg? Exception #"Expected" (retry failing-always |
| :retries 1 |
| :delay 0 |
| :fallback (fn [e] (throw e)))))))) |