thin-provisioning-tools/functional-tests/test-runner.scm

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(library
(test-runner)
(export run-tests)
(import (rnrs)
(only (chezscheme) load-shared-object)
(fmt fmt)
(list-utils)
(functional-tests)
(bcache bcache-tests)
(cache-functional-tests)
(era-functional-tests)
(parser-combinators)
(only (srfi s1 lists) break)
(regex)
(srfi s8 receive)
(temp-file))
;;------------------------------------------------
;; Returns #t if the xs list matches prefix
(define (begins-with prefix xs)
(cond
((null? prefix) #t)
((null? xs) #f)
((eq? (car prefix) (car xs))
(begins-with (cdr prefix) (cdr xs)))
(else #f)))
(define (split-list xs sep)
(define (safe-cdr xs)
(if (null? xs) '() (cdr xs)))
(if (null? xs)
'()
(receive (p r) (break (lambda (c)
(eq? c sep))
xs)
(cons p (split-list (safe-cdr r) sep)))))
(define (string->syms str sep)
(map (lambda (cs)
(string->symbol
(list->string cs)))
(split-list (string->list str) sep)))
(define (mk-string-matcher pattern)
(let ((prefix (string->syms pattern #\/)))
(lambda (keys)
(begins-with prefix keys))))
(define (mk-regex-matcher pattern)
(let ((rx (regex pattern)))
(lambda (keys)
(rx (apply string-append
(intersperse "/"
(map symbol->string keys)))))))
(define (string-prefix? p str)
(and (>= (string-length str) (string-length p))
(string=? p (substring str 0 (string-length p)))))
;; If the filter begins with 're:' then we make a regex matcher, otherwise
;; we use a simple string matcher.
(define (mk-single-matcher pattern)
(if (string-prefix? "re:" pattern)
(mk-regex-matcher (substring pattern 3 (string-length pattern)))
(mk-string-matcher pattern)))
(define (mk-filter patterns)
(if (null? patterns)
; accept everything if no patterns
(lambda (_) #t)
; Otherwise accept tests that pass a pattern
(let ((filters (map mk-single-matcher patterns)))
(fold-left (lambda (fn-a fn-b)
(lambda (keys)
(or (fn-a keys)
(fn-b keys))))
(car filters)
(cdr filters)))))
(define (exec-help)
(fmt (current-error-port)
"Usage:" nl
" run-tests help" nl
" run-tests list <pattern>*" nl
" run-tests run [--disable-unlink] <pattern>*" nl nl
(justify
(string-append
"Patterns are used to select tests. There are two forms a pattern can take; "
"either a literal such as 'cache-check/bad-option', or a regular expression (prefix with 're:')."))
nl
"eg," nl
" run-tests run cache-check/bad-option" nl
" run-tests run re:help" nl
" run-tests run cache-check thin-check re:.*missing.*file" nl
))
(define (exec-run args)
(let ((pred (mk-filter args)))
(if (run-scenarios (filter pred (list-scenarios)))
(exit)
(exit #f))))
(define (exec-list args)
(let ((pred (mk-filter args)))
(describe-scenarios (filter pred (list-scenarios)))))
;;------------------------------------------------
;; Command line parser
(define whitespace
(many+ (charset " \t\n")))
(define (whitespace-delim ma)
(>> (opt whitespace)
(<* ma (opt whitespace))))
(define (cmd-word str)
(whitespace-delim (lit str)))
(define (switch str)
(whitespace-delim (>> (lit "--") (lit str))))
(define not-switch
(whitespace-delim
(parse-m (<- c (neg-charset "- \t"))
(<- cs (many* (neg-charset " \t")))
(pure (list->string (cons c cs))))))
(define (maybe ma)
(alt (>> ma (pure #t))
(pure #f)))
(define help-command-line
(>> (cmd-word "help") (pure exec-help)))
(define run-command-line
(parse-m
(cmd-word "run")
(<- dunlink (maybe (switch "disable-unlink")))
(<- args (many* not-switch))
(pure (lambda ()
(if dunlink
(disable-unlink (exec-run args))
(exec-run args))))))
(define list-command-line
(parse-m
(cmd-word "list")
(<- args (many* not-switch))
(pure (lambda () (exec-list args)))))
(define command-line-parser
(one-of help-command-line
run-command-line
list-command-line))
(define (bad-command-line)
(fmt (current-error-port) (dsp "bad command line\n"))
(exec-help)
(exit 1))
;; (<string>) -> thunk
(define (parse-command-line)
(let ((args (cdr (command-line))))
(receive (v st)
(parse command-line-parser
(apply string-append
(intersperse " " (cdr (command-line)))))
(if (success? st)
v
bad-command-line))))
;;------------------------------------------------
(define (run-tests)
(with-dir "test-output"
((parse-command-line)))))