mark-reserved (clj)

;;;; Copyright © 2011 Paul Stadig
;;;;
;;;; Licensed 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 migratus.test.database
  (:require [clojure.java.io :as io]
            [next.jdbc :as jdbc]
            [next.jdbc.result-set :as rs]
            [next.jdbc.quoted :as q]
            [next.jdbc.sql :as sql]
            [migratus.protocols :as proto]
            [migratus.core :as core]
            [clojure.test :refer :all]
            [migratus.database :refer :all :as db]
            [clojure.tools.logging :as log]
            [migratus.test.migration.edn :as test-edn]
            [migratus.test.migration.sql :as test-sql]
            [migratus.utils :as utils])
  (:import java.io.File
           java.sql.Connection
           java.util.jar.JarFile
           (java.util.concurrent CancellationException)))

  (core/migrate config)
  (db/mark-unreserved (:db config) "foo_bar")
  (db/mark-reserved (:db config) "foo_bar")


(deftest test-migration-ignored-when-already-reserved
  (test-with-store
    (proto/make-store config)
    (fn [{:keys [db migration-table-name] :as config}]
      (testing "can only reserve once"
        (is (mark-reserved db migration-table-name))
        (is (not (mark-reserved db migration-table-name))))
      (testing "migrations don't run when locked"
        (is (not (test-sql/verify-table-exists? config "foo")))
        (is (= :ignore (core/migrate config)))
        (is (not (test-sql/verify-table-exists? config "foo"))))
      (testing "migrations run once lock is freed"
        (mark-unreserved db migration-table-name)
        (is (nil? (core/migrate config)))
        (is (test-sql/verify-table-exists? config "foo")))
      (testing "rollback migration isn't run when locked"
        (is (mark-reserved db migration-table-name))
        (core/down config 20111202110600)
        (is (test-sql/verify-table-exists? config "foo")))
      (testing "rollback migration run once lock is freed"
        (mark-unreserved db migration-table-name)
        (core/down config 20111202110600)
        (is (not (test-sql/verify-table-exists? config "foo")))))))

(defn- test-backing-out* [test-config]
  (let [{:keys [db migration-table-name]} test-config]
    (testing "should fail")
    (is (thrown? Throwable (core/migrate test-config)))
    (testing "first statement in migration was backed out because second one failed")
    (is (not (test-sql/verify-table-exists? test-config "quux2")))
    (testing "third statement in migration was backed out because second one failed")
    (is (not (test-sql/verify-table-exists? test-config "quux3")))
    (testing "migration was not applied")
    (is (not (complete? db migration-table-name 20120827170200)))
    #_#_(testing "table should be unreserved after migration failure")
    (is (false? (mark-reserved db migration-table-name)))))