60 lines
1.8 KiB
Scheme
60 lines
1.8 KiB
Scheme
;;; common.scm -- Common test helpers.
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;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
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;;;
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;;; This file is part of Cuirass.
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;;;
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;;; Cuirass is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; Cuirass is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Cuirass. If not, see <http://www.gnu.org/licenses/>.
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(define-module (tests common)
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#:use-module (cuirass database)
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#:use-module (cuirass parameters)
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#:use-module (cuirass utils)
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#:use-module (ice-9 popen)
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#:use-module (ice-9 rdelim)
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#:export (%db
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retry
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test-init-db!))
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(define %db
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(make-parameter #f))
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(define (pg-tmp)
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"Start a temporary PostgreSQL instance using ephemeralpg."
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;; Destroy the database right after disconnection.
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(let* ((pipe (open-input-pipe "pg_tmp -w 1"))
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(uri (read-string pipe)))
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(close-pipe pipe)
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uri))
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(define* (retry f #:key times delay)
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(let loop ((attempt 1))
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(let ((result (f)))
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(cond
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(result result)
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(else
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(if (>= attempt times)
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#f
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(begin
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(sleep delay)
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(loop (+ 1 attempt)))))))))
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(define (test-init-db!)
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"Initialize the test database."
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(%create-database? #t)
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(%package-database (pg-tmp))
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(%db (db-open))
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(%db-channel (make-worker-thread-channel
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(lambda ()
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(list (%db))))))
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