guix/tests/lint.scm

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013 Cyril Roelandt <tipecaml@gmail.com>
;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-lint)
#:use-module (guix tests)
#:use-module (guix download)
#:use-module (guix build-system gnu)
#:use-module (guix packages)
#:use-module (guix scripts lint)
#:use-module (guix ui)
#:use-module (gnu packages)
#:use-module (gnu packages pkg-config)
#:use-module (web server)
#:use-module (web server http)
#:use-module (web response)
#:use-module (ice-9 threads)
#:use-module (srfi srfi-9 gnu)
#:use-module (srfi srfi-64))
;; Test the linter.
(define %http-server-port
;; TCP port to use for the stub HTTP server.
9999)
(define %local-url
;; URL to use for 'home-page' tests.
(string-append "http://localhost:" (number->string %http-server-port)
"/foo/bar"))
(define %null-sha256
;; SHA256 of the empty string.
(base32
"0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73"))
(define %http-server-socket
;; Socket used by the Web server.
(catch 'system-error
(lambda ()
(let ((sock (socket PF_INET SOCK_STREAM 0)))
(setsockopt sock SOL_SOCKET SO_REUSEADDR 1)
(bind sock
(make-socket-address AF_INET INADDR_LOOPBACK
%http-server-port))
sock))
(lambda args
(let ((err (system-error-errno args)))
(format (current-error-port)
"warning: cannot run Web server for tests: ~a~%"
(strerror err))
#f))))
(define (http-write server client response body)
"Write RESPONSE."
(let* ((response (write-response response client))
(port (response-port response)))
(cond
((not body)) ;pass
(else
(write-response-body response body)))
(close-port port)
(quit #t) ;exit the server thread
(values)))
;; Mutex and condition variable to synchronize with the HTTP server.
(define %http-server-lock (make-mutex))
(define %http-server-ready (make-condition-variable))
(define (http-open . args)
"Start listening for HTTP requests and signal %HTTP-SERVER-READY."
(with-mutex %http-server-lock
(let ((result (apply (@@ (web server http) http-open) args)))
(signal-condition-variable %http-server-ready)
result)))
(define-server-impl stub-http-server
;; Stripped-down version of Guile's built-in HTTP server.
http-open
(@@ (web server http) http-read)
http-write
(@@ (web server http) http-close))
(define (call-with-http-server code thunk)
"Call THUNK with an HTTP server running and returning CODE on HTTP
requests."
(define (server-body)
(define (handle request body)
(values (build-response #:code code
#:reason-phrase "Such is life")
"Hello, world."))
(catch 'quit
(lambda ()
(run-server handle stub-http-server
`(#:socket ,%http-server-socket)))
(const #t)))
(with-mutex %http-server-lock
(let ((server (make-thread server-body)))
(wait-condition-variable %http-server-ready %http-server-lock)
;; Normally SERVER exits automatically once it has received a request.
(thunk))))
(define-syntax-rule (with-http-server code body ...)
(call-with-http-server code (lambda () body ...)))
(test-begin "lint")
(define (call-with-warnings thunk)
(let ((port (open-output-string)))
(parameterize ((guix-warning-port port))
(thunk))
(get-output-string port)))
(define-syntax-rule (with-warnings body ...)
(call-with-warnings (lambda () body ...)))
(test-assert "description: not empty"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(description ""))))
(check-description-style pkg)))
"description should not be empty")))
(test-assert "description: does not start with an upper-case letter"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(description "bad description."))))
(check-description-style pkg)))
"description should start with an upper-case letter")))
(test-assert "description: may start with a digit"
(string-null?
(with-warnings
(let ((pkg (dummy-package "x"
(description "2-component library."))))
(check-description-style pkg)))))
(test-assert "description: may start with lower-case package name"
(string-null?
(with-warnings
(let ((pkg (dummy-package "x"
(description "x is a dummy package."))))
(check-description-style pkg)))))
(test-assert "description: two spaces after end of sentence"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(description "Bad. Quite bad."))))
(check-description-style pkg)))
"sentences in description should be followed by two spaces")))
(test-assert "description: end-of-sentence detection with abbreviations"
(string-null?
(with-warnings
(let ((pkg (dummy-package "x"
(description
"E.g. Foo, i.e. Bar resp. Baz (a.k.a. DVD)."))))
(check-description-style pkg)))))
(test-assert "synopsis: not empty"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis ""))))
(check-synopsis-style pkg)))
"synopsis should not be empty")))
(test-assert "synopsis: does not start with an upper-case letter"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "bad synopsis."))))
(check-synopsis-style pkg)))
"synopsis should start with an upper-case letter")))
(test-assert "synopsis: may start with a digit"
(string-null?
(with-warnings
(let ((pkg (dummy-package "x"
(synopsis "5-dimensional frobnicator"))))
(check-synopsis-style pkg)))))
(test-assert "synopsis: ends with a period"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "Bad synopsis."))))
(check-synopsis-style pkg)))
"no period allowed at the end of the synopsis")))
(test-assert "synopsis: ends with 'etc.'"
(string-null? (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "Foo, bar, etc."))))
(check-synopsis-style pkg)))))
(test-assert "synopsis: starts with 'A'"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "A bad synopŝis"))))
(check-synopsis-style pkg)))
"no article allowed at the beginning of the synopsis")))
(test-assert "synopsis: starts with 'An'"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "An awful synopsis"))))
(check-synopsis-style pkg)))
"no article allowed at the beginning of the synopsis")))
(test-assert "synopsis: starts with 'a'"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "a bad synopsis"))))
(check-synopsis-style pkg)))
"no article allowed at the beginning of the synopsis")))
(test-assert "synopsis: starts with 'an'"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis "an awful synopsis"))))
(check-synopsis-style pkg)))
"no article allowed at the beginning of the synopsis")))
(test-assert "synopsis: too long"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(synopsis (make-string 80 #\x)))))
(check-synopsis-style pkg)))
"synopsis should be less than 80 characters long")))
(test-assert "synopsis: start with package name"
(->bool
(string-contains (with-warnings
(let ((pkg (dummy-package "x"
(name "foo")
(synopsis "foo, a nice package"))))
(check-synopsis-style pkg)))
"synopsis should not start with the package name")))
(test-assert "synopsis: start with package name prefix"
(string-null?
(with-warnings
(let ((pkg (dummy-package "arb"
(synopsis "Arbitrary precision"))))
(check-synopsis-style pkg)))))
(test-assert "synopsis: start with abbreviation"
(string-null?
(with-warnings
(let ((pkg (dummy-package "uucp"
;; Same problem with "APL interpreter", etc.
(synopsis "UUCP implementation")
(description "Imagine this is Taylor UUCP."))))
(check-synopsis-style pkg)))))
(test-assert "inputs: pkg-config is probably a native input"
(->bool
(string-contains
(with-warnings
(let ((pkg (dummy-package "x"
(inputs `(("pkg-config" ,pkg-config))))))
(check-inputs-should-be-native pkg)))
"pkg-config should probably be a native input")))
(test-assert "patches: file names"
(->bool
(string-contains
(with-warnings
(let ((pkg (dummy-package "x"
(source
(origin
(method url-fetch)
(uri "someurl")
(sha256 "somesha")
(patches (list "/path/to/y.patch")))))))
(check-patch-file-names pkg)))
"file names of patches should start with the package name")))
(test-assert "patches: not found"
(->bool
(string-contains
(with-warnings
(let ((pkg (dummy-package "x"
(source
(origin
(method url-fetch)
(uri "someurl")
(sha256 "somesha")
(patches
(list (search-patch "this-patch-does-not-exist!"))))))))
(check-patch-file-names pkg)))
"patch not found")))
(test-assert "derivation: invalid arguments"
(->bool
(string-contains
(with-warnings
(let ((pkg (dummy-package "x"
(arguments
'(#:imported-modules (invalid-module))))))
(check-derivation pkg)))
"failed to create derivation")))
(test-assert "home-page: wrong home-page"
(->bool
(string-contains
(with-warnings
(let ((pkg (package
(inherit (dummy-package "x"))
(home-page #f))))
(check-home-page pkg)))
"invalid")))
(test-assert "home-page: invalid URI"
(->bool
(string-contains
(with-warnings
(let ((pkg (package
(inherit (dummy-package "x"))
(home-page "foobar"))))
(check-home-page pkg)))
"invalid home page URL")))
(test-assert "home-page: host not found"
(->bool
(string-contains
(with-warnings
(let ((pkg (package
(inherit (dummy-package "x"))
(home-page "http://does-not-exist"))))
(check-home-page pkg)))
"domain not found")))
(test-skip (if %http-server-socket 0 1))
(test-assert "home-page: Connection refused"
(->bool
(string-contains
(with-warnings
(let ((pkg (package
(inherit (dummy-package "x"))
(home-page %local-url))))
(check-home-page pkg)))
"Connection refused")))
(test-skip (if %http-server-socket 0 1))
(test-equal "home-page: 200"
""
(with-warnings
(with-http-server 200
(let ((pkg (package
(inherit (dummy-package "x"))
(home-page %local-url))))
(check-home-page pkg)))))
(test-skip (if %http-server-socket 0 1))
(test-assert "home-page: 404"
(->bool
(string-contains
(with-warnings
(with-http-server 404
(let ((pkg (package
(inherit (dummy-package "x"))
(home-page %local-url))))
(check-home-page pkg))))
"not reachable: 404")))
(test-skip (if %http-server-socket 0 1))
(test-equal "source: 200"
""
(with-warnings
(with-http-server 200
(let ((pkg (package
(inherit (dummy-package "x"))
(source (origin
(method url-fetch)
(uri %local-url)
(sha256 %null-sha256))))))
(check-source pkg)))))
(test-skip (if %http-server-socket 0 1))
(test-assert "source: 404"
(->bool
(string-contains
(with-warnings
(with-http-server 404
(let ((pkg (package
(inherit (dummy-package "x"))
(source (origin
(method url-fetch)
(uri %local-url)
(sha256 %null-sha256))))))
(check-source pkg))))
"not reachable: 404")))
(test-assert "formatting: tabulation"
(string-contains
(with-warnings
(check-formatting (dummy-package "leave the tab here: ")))
"tabulation"))
(test-assert "formatting: trailing white space"
(string-contains
(with-warnings
;; Leave the trailing white space on the next line!
(check-formatting (dummy-package "x")))
"trailing white space"))
(test-assert "formatting: long line"
(string-contains
(with-warnings
(check-formatting
(dummy-package "x" ;here is a stupid comment just to make a long line
)))
"too long"))
(test-assert "formatting: alright"
(string-null?
(with-warnings
(check-formatting (dummy-package "x")))))
(test-end "lint")
(exit (= (test-runner-fail-count (test-runner-current)) 0))
;; Local Variables:
;; eval: (put 'with-http-server 'scheme-indent-function 1)
;; eval: (put 'with-warnings 'scheme-indent-function 0)
;; End: