164 lines
5.1 KiB
Scheme
164 lines
5.1 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
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;;; Copyright © 2022 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; 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 (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (tests services configuration)
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#:use-module (gnu services configuration)
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#:use-module (guix diagnostics)
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#:use-module (guix gexp)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-64))
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;;; Tests for the (gnu services configuration) module.
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(test-begin "services-configuration")
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(define (serialize-number field value)
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(format #f "~a=~a" field value))
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;;;
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;;; define-configuration macro.
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;;;
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(define-configuration port-configuration
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(port (number 80) "The port number.")
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(no-serialization))
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(test-equal "default value, no serialization"
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80
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(port-configuration-port (port-configuration)))
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(test-equal "wrong type for a field"
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'("configuration.scm" 57 11) ;error location
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(guard (c ((configuration-error? c)
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(let ((loc (error-location c)))
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(list (basename (location-file loc))
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(location-line loc)
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(location-column loc)))))
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(port-configuration
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;; This is line 56; the test relies on line/column numbers!
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(port "This is not a number!"))))
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(define-configuration port-configuration-cs
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(port (number 80) "The port number." empty-serializer))
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(test-equal "default value, custom serializer"
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80
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(port-configuration-cs-port (port-configuration-cs)))
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(define-configuration port-configuration-ndv
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(port (number) "The port number."))
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(test-equal "no default value, provided"
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55
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(port-configuration-ndv-port (port-configuration-ndv
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(port 55))))
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(test-assert "no default value, not provided"
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(guard (c ((configuration-error? c)
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#t))
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(port-configuration-ndv-port (port-configuration-ndv))))
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(define (custom-number-serializer name value)
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(format #f "~a = ~a;" name value))
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(define-configuration serializable-configuration
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(port (number 80) "The port number." custom-number-serializer))
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(test-assert "serialize-configuration"
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(gexp?
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(let ((config (serializable-configuration)))
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(serialize-configuration config serializable-configuration-fields))))
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(define-configuration serializable-configuration
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(port (number 80) "The port number." custom-number-serializer)
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(no-serialization))
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(test-assert "serialize-configuration with no-serialization"
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;; When serialization is disabled, the serializer is set to #f, so
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;; attempting to use it fails with a 'wrong-type-arg' error.
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(not (false-if-exception
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(let ((config (serializable-configuration)))
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(serialize-configuration config serializable-configuration-fields)))))
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(define (custom-prefix-serialize-integer field-name name) name)
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(define-configuration configuration-with-prefix
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(port (integer 10) "The port number.")
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(prefix custom-prefix-))
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(test-assert "serialize-configuration with prefix"
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(gexp?
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(let ((config (configuration-with-prefix)))
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(serialize-configuration config configuration-with-prefix-fields))))
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;;;
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;;; define-maybe macro.
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;;;
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(define-maybe number)
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(define-configuration config-with-maybe-number
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(port (maybe-number 80) "")
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(count maybe-number ""))
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(test-equal "maybe value serialization"
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"port=80"
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(serialize-maybe-number "port" 80))
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(define (config-with-maybe-number->string x)
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(eval (gexp->approximate-sexp
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(serialize-configuration x config-with-maybe-number-fields))
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(current-module)))
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(test-equal "maybe value serialization of the instance"
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"port=42count=43"
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(config-with-maybe-number->string
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(config-with-maybe-number
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(port 42)
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(count 43))))
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(test-equal "maybe value serialization of the instance, unspecified"
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"port=42"
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(config-with-maybe-number->string
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(config-with-maybe-number
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(port 42))))
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(define-maybe/no-serialization string)
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(define-configuration config-with-maybe-string/no-serialization
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(name (maybe-string) "The name of the item.")
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(no-serialization))
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(test-assert "maybe value without serialization no procedure bound"
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(not (defined? 'serialize-maybe-string)))
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(test-assert "maybe type, no default"
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(eq? 'unset
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(config-with-maybe-string/no-serialization-name
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(config-with-maybe-string/no-serialization))))
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(test-assert "maybe type, with default"
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(equal?
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"foo"
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(config-with-maybe-string/no-serialization-name
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(config-with-maybe-string/no-serialization
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(name "foo")))))
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