guix-mirrors/build-aux/test-driver.scm
Maxim Cournoyer 13f299b2c9
build: test-driver.scm: Make output redirection optional.
This makes it easier (and less surprising) for users to experiment with the
custom Scheme test driver directly.  The behavior is unchanged from Automake's
point of view.

* build-aux/test-driver.scm (main): Make the --log-file and --trs-file
arguments optional and update doc.  Only open, redirect and close a port to a log file when
the --log-file option is provided.  Only open and close a port to a trs file
when the --trs-file option is provided.
(test-runner-gnu): Set OUT-PORT parameter default value to the current output
port.  Set the TRS-PORT parameter default value to a void port.  Update doc.
2021-01-31 22:23:41 -05:00

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;;;; test-driver.scm - Guile test driver for Automake testsuite harness
(define script-version "2021-01-26.20") ;UTC
;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; This program 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.
;;;
;;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;;; Commentary:
;;;
;;; This script provides a Guile test driver using the SRFI-64 Scheme API for
;;; test suites. SRFI-64 is distributed with Guile since version 2.0.9.
;;;
;;;; Code:
(use-modules (ice-9 getopt-long)
(ice-9 pretty-print)
(srfi srfi-26)
(srfi srfi-64))
(define (show-help)
(display "Usage:
test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
[--expect-failure={yes|no}] [--color-tests={yes|no}]
[--enable-hard-errors={yes|no}] [--brief={yes|no}}] [--]
TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
The '--test-name' option is mandatory.\n"))
(define %options
'((test-name (value #t))
(log-file (value #t))
(trs-file (value #t))
(color-tests (value #t))
(expect-failure (value #t)) ;XXX: not implemented yet
(enable-hard-errors (value #t)) ;not implemented in SRFI-64
(brief (value #t))
(help (single-char #\h) (value #f))
(version (single-char #\V) (value #f))))
(define (option->boolean options key)
"Return #t if the value associated with KEY in OPTIONS is \"yes\"."
(and=> (option-ref options key #f) (cut string=? <> "yes")))
(define* (test-display field value #:optional (port (current-output-port))
#:key pretty?)
"Display \"FIELD: VALUE\\n\" on PORT."
(if pretty?
(begin
(format port "~A:~%" field)
(pretty-print value port #:per-line-prefix "+ "))
(format port "~A: ~S~%" field value)))
(define* (result->string symbol #:key colorize?)
"Return SYMBOL as an upper case string. Use colors when COLORIZE is #t."
(let ((result (string-upcase (symbol->string symbol))))
(if colorize?
(string-append (case symbol
((pass) "") ;green
((xfail) "") ;light green
((skip) "") ;blue
((fail xpass) "") ;red
((error) "")) ;magenta
result
"") ;no color
result)))
(define* (test-runner-gnu test-name #:key color? brief?
(out-port (current-output-port))
(trs-port (%make-void-port "w")))
"Return an custom SRFI-64 test runner. TEST-NAME is a string specifying the
file name of the current the test. COLOR? specifies whether to use colors,
and BRIEF?, well, you know. OUT-PORT and TRS-PORT must be output ports.
OUT-PORT defaults to the current output port, while TRS-PORT defaults to a
void port, which means no TRS output is logged."
(define (test-on-test-begin-gnu runner)
;; Procedure called at the start of an individual test case, before the
;; test expression (and expected value) are evaluated.
(let ((result (cute assq-ref (test-result-alist runner) <>)))
(format #t "test-name: ~A~%" (result 'test-name))
(format #t "location: ~A~%"
(string-append (result 'source-file) ":"
(number->string (result 'source-line))))
(test-display "source" (result 'source-form) #:pretty? #t)))
(define (test-on-test-end-gnu runner)
;; Procedure called at the end of an individual test case, when the result
;; of the test is available.
(let* ((results (test-result-alist runner))
(result? (cut assq <> results))
(result (cut assq-ref results <>)))
(unless brief?
;; Display the result of each test case on the console.
(format out-port "~A: ~A - ~A~%"
(result->string (test-result-kind runner) #:colorize? color?)
test-name (test-runner-test-name runner)))
(when (result? 'expected-value)
(test-display "expected-value" (result 'expected-value)))
(when (result? 'expected-error)
(test-display "expected-error" (result 'expected-error) #:pretty? #t))
(when (result? 'actual-value)
(test-display "actual-value" (result 'actual-value)))
(when (result? 'actual-error)
(test-display "actual-error" (result 'actual-error) #:pretty? #t))
(format #t "result: ~a~%" (result->string (result 'result-kind)))
(newline)
(format trs-port ":test-result: ~A ~A~%"
(result->string (test-result-kind runner))
(test-runner-test-name runner))))
(define (test-on-group-end-gnu runner)
;; Procedure called by a 'test-end', including at the end of a test-group.
(let ((fail (or (positive? (test-runner-fail-count runner))
(positive? (test-runner-xpass-count runner))))
(skip (or (positive? (test-runner-skip-count runner))
(positive? (test-runner-xfail-count runner)))))
;; XXX: The global results need some refinements for XPASS.
(format trs-port ":global-test-result: ~A~%"
(if fail "FAIL" (if skip "SKIP" "PASS")))
(format trs-port ":recheck: ~A~%"
(if fail "yes" "no"))
(format trs-port ":copy-in-global-log: ~A~%"
(if (or fail skip) "yes" "no"))
(when brief?
;; Display the global test group result on the console.
(format out-port "~A: ~A~%"
(result->string (if fail 'fail (if skip 'skip 'pass))
#:colorize? color?)
test-name))
#f))
(let ((runner (test-runner-null)))
(test-runner-on-test-begin! runner test-on-test-begin-gnu)
(test-runner-on-test-end! runner test-on-test-end-gnu)
(test-runner-on-group-end! runner test-on-group-end-gnu)
(test-runner-on-bad-end-name! runner test-on-bad-end-name-simple)
runner))
;;;
;;; Entry point.
;;;
(define (main . args)
(let* ((opts (getopt-long (command-line) %options))
(option (cut option-ref opts <> <>)))
(cond
((option 'help #f) (show-help))
((option 'version #f) (format #t "test-driver.scm ~A" script-version))
(else
(let ((log (and=> (option 'log-file #f) (cut open-file <> "w0")))
(trs (and=> (option 'trs-file #f) (cut open-file <> "wl")))
(out (duplicate-port (current-output-port) "wl"))
(test-name (option 'test-name #f)))
(when log
(redirect-port log (current-output-port))
(redirect-port log (current-warning-port))
(redirect-port log (current-error-port)))
(test-with-runner
(test-runner-gnu test-name
#:color? (option->boolean opts 'color-tests)
#:brief? (option->boolean opts 'brief)
#:out-port out #:trs-port trs)
(load-from-path test-name))
(and=> log close-port)
(and=> trs close-port)
(close-port out))))
(exit 0)))
;;; Local Variables:
;;; eval: (add-hook 'write-file-functions 'time-stamp)
;;; time-stamp-start: "(define script-version \""
;;; time-stamp-format: "%:y-%02m-%02d.%02H"
;;; time-stamp-time-zone: "UTC"
;;; time-stamp-end: "\") ;UTC"
;;; End:
;;;; test-driver.scm ends here.