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

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(library
(thin-functional-tests)
(export register-thin-tests)
(import
(chezscheme)
(fmt fmt)
(functional-tests)
(thin-xml)
(srfi s8 receive)
(only (srfi s1 lists) drop-while))
;; FIXME: don't hard code this
(define tools-version "0.7.0-rc6")
(define (tool-name sym)
(define (to-underscore c)
(if (eq? #\- c) #\_ c))
(list->string (map to-underscore (string->list (symbol->string sym)))))
(define-syntax define-tool
(syntax-rules ()
((_ tool-sym) (define (tool-sym . flags)
(apply run-ok (tool-name 'tool-sym) flags)))))
(define-tool thin-check)
(define-tool thin-delta)
(define-tool thin-dump)
(define-tool thin-restore)
(define-tool thin-rmap)
(define (assert-equal str1 str2)
(unless (equal? str1 str2)
(fail (fmt #f (dsp "values differ: ")
(wrt str1)
(dsp ", ")
(wrt str2)))))
(define (assert-eof obj)
(unless (eof-object? obj)
(fail (fmt #f (dsp "object is not an #!eof: ") (dsp obj)))))
(define (starts-with prefix str)
(and (>= (string-length str) (string-length prefix))
(equal? (substring str 0 (string-length prefix))
prefix)))
(define (assert-starts-with prefix str)
(unless (starts-with prefix str)
(fail (fmt #f (dsp "string should begin with: ")
(wrt prefix)
(dsp ", ")
(wrt str)))))
(define (current-metadata) "metadata.bin")
(define (%with-valid-metadata thunk)
(run-ok "thin_restore" "-i" (temp-thin-xml) "-o" (current-metadata))
(thunk))
(define-syntax with-valid-metadata
(syntax-rules ()
((_ body ...) (%with-valid-metadata (lambda () body ...)))))
;;; It would be nice if the metadata was at least similar to valid data.
(define (%with-corrupt-metadata thunk)
(run-ok "dd if=/dev/zero" (fmt #f "of=" (current-metadata)) "bs=64M count=1")
(thunk))
(define-syntax with-corrupt-metadata
(syntax-rules ()
((_ body ...) (%with-corrupt-metadata (lambda () body ...)))))
;; We have to export something that forces all the initialisation expressions
;; to run.
(define (register-thin-tests) #t)
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;;;-----------------------------------------------------------
;;; thin_check scenarios
;;;-----------------------------------------------------------
(define thin-check-help
"Usage: thin_check [options] {device|file}
Options:
{-q|--quiet}
{-h|--help}
{-V|--version}
{--clear-needs-check-flag}
{--ignore-non-fatal-errors}
{--skip-mappings}
{--super-block-only}")
(define thin-restore-outfile-too-small-text
"Output file too small.
The output file should either be a block device,
or an existing file. The file needs to be large
enough to hold the metadata.")
(define thin-restore-help
"Usage: thin_restore [options]
Options:
{-h|--help}
{-i|--input} <input xml file>
{-o|--output} <output device or file>
{-q|--quiet}
{-V|--version}")
(define thin-rmap-help
"Usage: thin_rmap [options] {device|file}
Options:
{-h|--help}
{-V|--version}
{--region <block range>}*
Where:
<block range> is of the form <begin>..<one-past-the-end>
for example 5..45 denotes blocks 5 to 44 inclusive, but not block 45")
(define-scenario (thin-check v)
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"thin_check -V"
(receive (stdout _) (thin-check "-V")
(assert-equal tools-version stdout)))
(define-scenario (thin-check version)
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"thin_check --version"
(receive (stdout _) (thin-check "--version")
(assert-equal tools-version stdout)))
(define-scenario (thin-check h)
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"print help (-h)"
(receive (stdout _) (thin-check "-h")
(assert-equal thin-check-help stdout)))
(define-scenario (thin-check help)
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"print help (--help)"
(receive (stdout _) (thin-check "--help")
(assert-equal thin-check-help stdout)))
(define-scenario (thin-check bad-option)
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"Unrecognised option should cause failure"
(run-fail "thin_check --hedgehogs-only"))
(define-scenario (thin-check superblock-only-valid)
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"--super-block-only check passes on valid metadata"
(with-valid-metadata
(thin-check "--super-block-only" (current-metadata))))
(define-scenario (thin-check superblock-only-invalid)
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"--super-block-only check fails with corrupt metadata"
(with-corrupt-metadata
(run-fail "thin_check --super-block-only" (current-metadata))))
(define-scenario (thin-check skip-mappings-valid)
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"--skip-mappings check passes on valid metadata"
(with-valid-metadata
(thin-check "--skip-mappings" (current-metadata))))
(define-scenario (thin-check ignore-non-fatal-errors)
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"--ignore-non-fatal-errors check passes on valid metadata"
(with-valid-metadata
(thin-check "--ignore-non-fatal-errors" (current-metadata))))
(define-scenario (thin-check quiet)
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"--quiet should give no output"
(with-valid-metadata
(receive (stdout stderr) (thin-check "--quiet" (current-metadata))
(assert-eof stdout)
(assert-eof stderr))))
(define-scenario (thin-check clear-needs-check-flag)
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"Accepts --clear-needs-check-flag"
(with-valid-metadata
(thin-check "--clear-needs-check-flag" (current-metadata))))
;;;-----------------------------------------------------------
;;; thin_restore scenarios
;;;-----------------------------------------------------------
(define-scenario (thin-restore print-version-v)
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"print help (-V)"
(receive (stdout _) (thin-restore "-V")
(assert-equal tools-version stdout)))
(define-scenario (thin-restore print-version-long)
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"print help (--version)"
(receive (stdout _) (thin-restore "--version")
(assert-equal tools-version stdout)))
(define-scenario (thin-restore h)
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"print help (-h)"
(receive (stdout _) (thin-restore "-h")
(assert-equal thin-restore-help stdout)))
(define-scenario (thin-restore help)
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"print help (-h)"
(receive (stdout _) (thin-restore "--help")
(assert-equal thin-restore-help stdout)))
(define-scenario (thin-restore no-input-file)
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"forget to specify an input file"
(receive (_ stderr) (run-fail "thin_restore" "-o" (current-metadata))
(assert-starts-with "No input file provided." stderr)))
(define-scenario (thin-restore missing-input-file)
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"the input file can't be found"
(receive (_ stderr) (run-fail "thin_restore -i no-such-file -o" (current-metadata))
(assert-starts-with "Couldn't stat file" stderr)))
(define-scenario (thin-restore missing-output-file)
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"the input file can't be found"
(receive (_ stderr) (run-fail "thin_restore -i no-such-file -o" (current-metadata))
(assert-starts-with "Couldn't stat file" stderr)))
(define-scenario (thin-restore tiny-output-file)
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"Fails if the output file is too small."
(let ((outfile (temp-file)))
(run-ok "dd if=/dev/zero" (fmt #f (dsp "of=") (dsp outfile)) "bs=4k count=1")
(receive (_ stderr) (run-fail "thin_restore" "-i" (temp-thin-xml) "-o" outfile)
(assert-starts-with thin-restore-outfile-too-small-text stderr))))
(define-scenario (thin-restore q)
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"thin_restore accepts -q"
(receive (stdout _) (thin-restore "-i" (temp-thin-xml) "-o" (current-metadata) "-q")
(assert-eof stdout)))
(define-scenario (thin-restore quiet)
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"thin_restore accepts --quiet"
(receive (stdout _) (thin-restore "-i" (temp-thin-xml) "-o" (current-metadata) "--quiet")
(assert-eof stdout)))
(define-scenario (thin-dump restore-is-noop)
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"thin_dump followed by thin_restore is a noop."
(with-valid-metadata
(receive (d1-stdout _) (thin-dump (current-metadata))
(thin-restore "-i" (temp-file-containing d1-stdout) "-o" (current-metadata))
(receive (d2-stdout _) (thin-dump (current-metadata))
(assert-equal d1-stdout d2-stdout)))))
;;;-----------------------------------------------------------
;;; thin_rmap scenarios
;;;-----------------------------------------------------------
(define-scenario (thin-rmap v)
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"thin_rmap accepts -V"
(receive (stdout _) (thin-rmap "-V")
(assert-equal tools-version stdout)))
(define-scenario (thin-rmap version)
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"thin_rmap accepts --version"
(receive (stdout _) (thin-rmap "--version")
(assert-equal tools-version stdout)))
(define-scenario (thin-rmap h)
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"thin_rmap accepts -h"
(receive (stdout _) (thin-rmap "-h")
(assert-equal thin-rmap-help stdout)))
(define-scenario (thin-rmap help)
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"thin_rmap accepts --help"
(receive (stdout _) (thin-rmap "--help")
(assert-equal thin-rmap-help stdout)))
(define-scenario (thin-rmap unrecognised-flag)
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"thin_rmap complains with bad flags."
(run-fail "thin_rmap --unleash-the-hedgehogs"))
(define-scenario (thin-rmap valid-region-format-should-pass)
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"thin_rmap with a valid region format should pass."
(with-valid-metadata
(thin-rmap "--region 23..7890" (current-metadata))))
(define-scenario (thin-rmap invalid-region-should-fail)
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"thin_rmap with an invalid region format should fail."
(for-each (lambda (pattern)
(with-valid-metadata
(run-fail "thin_rmap --region" pattern (current-metadata))))
'("23,7890" "23..six" "found..7890" "89..88" "89..89" "89.." "" "89...99")))
(define-scenario (thin-rmap multiple-regions-should-pass)
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"thin_rmap should handle multiple regions."
(with-valid-metadata
(thin-rmap "--region 1..23 --region 45..78" (current-metadata)))))