[functional-tests] a bunch of thin tests
This commit is contained in:
Joe Thornber
parent
4bb99bf105
commit
bca125d97a
@ -25,7 +25,7 @@
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(define-syntax with-valid-metadata
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(syntax-rules ()
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((_ (md) b1 b2 ...)
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(with-temp-file-sized ((md "cache.bin" (meg 4)))
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(with-temp-file-sized ((md "cache.bin" (to-bytes (meg 4))))
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(with-cache-xml (xml)
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(run-ok (cache-restore "-i" xml "-o" md))
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b1 b2 ...)))))
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@ -34,13 +34,13 @@
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(define-syntax with-corrupt-metadata
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(syntax-rules ()
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((_ (md) b1 b2 ...)
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(with-temp-file-sized ((md "cache.bin" (meg 4)))
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(with-temp-file-sized ((md "cache.bin" (to-bytes (meg 4))))
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b1 b2 ...))))
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(define-syntax with-empty-metadata
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(syntax-rules ()
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((_ (md) b1 b2 ...)
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(with-temp-file-sized ((md "cache.bin" (meg 4)))
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(with-temp-file-sized ((md "cache.bin" (to-bytes (meg 4))))
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b1 b2 ...))))
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;; We have to export something that forces all the initialisation expressions
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@ -315,7 +315,7 @@
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(define-scenario (cache-metadata-size device-size-only)
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"Just --device-size causes fail"
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(run-fail-rcv (_ stderr) (cache-metadata-size "--device-size" (meg 100))
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(run-fail-rcv (_ stderr) (cache-metadata-size "--device-size" (to-bytes (meg 100)))
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(assert-equal "If you specify --device-size you must also give --block-size."
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stderr)))
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@ -1,22 +1,40 @@
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(library
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(device-mapper dm-tests)
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(export register-dm-tests make-allocator)
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(export register-dm-tests
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get-dev-size)
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(import (device-mapper ioctl)
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(disk-units)
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(chezscheme)
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(functional-tests)
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(fmt fmt)
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(list-utils)
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(loops)
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(process)
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(srfi s27 random-bits)
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(temp-file))
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(temp-file)
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(utils))
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;; We have to export something that forces all the initialisation expressions
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;; to run.
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(define (register-dm-tests) #t)
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;; FIXME: use memoisation to avoid running blockdev so much
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(define (get-dev-size dev)
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(run-ok-rcv (stdout stderr) (fmt #f "blockdev --getsz " dev)
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(string->number (chomp stdout))))
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;; Hard coded, get these from the command line
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(define test-dev "/dev/vda")
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(define test-dev-size 209715200)
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(define fast-dev "/dev/vda")
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(define mk-fast-allocator
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(let ((size (get-dev-size fast-dev)))
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(lambda ()
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(make-allocator fast-dev size))))
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(define slow-dev "/dev/vdb")
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(define mk-slow-allocator
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(let ((size (get-dev-size slow-dev)))
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(lambda ()
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(make-allocator slow-dev size))))
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(define-record-type segment (fields (mutable dev)
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(mutable start)
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@ -27,30 +45,25 @@
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"linear"
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(fmt #f (segment-dev seg) " " (segment-start seg))))
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;; FIXME: move above first use
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(define (make-allocator dev dev-len)
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(let ((offset 0))
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(lambda (len)
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(let ((b offset)
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(e (+ offset len)))
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(e (+ offset (to-sectors len))))
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(if (> e dev-len)
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(fail "not enough space for allocation")
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(begin
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(set! offset e)
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(linear (make-segment dev b e))))))))
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(define-syntax with-test-allocator
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(syntax-rules ()
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((_ (var) b1 b2 ...)
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(let ((var (make-allocator test-dev test-dev-size)))
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b1 b2 ...))))
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(define (linear-table allocator nr-targets)
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(let loop ((nr-targets nr-targets)
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(acc '()))
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(if (zero? nr-targets)
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(reverse acc)
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(loop (- nr-targets 1)
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(cons (allocator (* 8 (random-integer 1024)))
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(cons (allocator (sectors (* 8 (random-integer 1024))))
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acc)))))
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(define (similar-targets t1 t2)
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@ -61,14 +74,147 @@
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(define-syntax define-dm-scenario
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(syntax-rules ()
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((_ path (pv) desc b1 b2 ...)
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((_ path desc b1 b2 ...)
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(define-scenario path desc
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(with-dm
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(with-test-allocator (pv)
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b1 b2 ...))))))
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(with-dm b1 b2 ...)))))
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;;----------------
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;; Thin utilities
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;;----------------
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(define-enumeration thin-pool-option
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(skip-block-zeroing ignore-discard no-discard-passdown read-only error-if-no-space)
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thin-pool-options)
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;; Expands the above option set into a list of strings to be passed to the
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;; target.
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(define (expand-thin-options opts)
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(define (expand-opt o)
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(case o
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((skip-block-zeroing) "skip_block_zeroing")
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((ignore-discard) "ignore_discard")
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((no-discard-passdown) "no_discard_passdown")
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((read-only) "read_only")
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((error-if-no-space) "error_if_no_space")))
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(map expand-opt (enum-set->list opts)))
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;; Builds a string of space separated args
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(define (build-args-string . args)
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(fmt #f (fmt-join dsp args (dsp " "))))
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(define (pool-table md-dev data-dev data-size block-size opts)
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(let ((opts-str (expand-thin-options opts)))
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(list
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(make-target (to-sectors data-size) "thin-pool"
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(apply build-args-string
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(dm-device-path md-dev)
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(dm-device-path data-dev)
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(to-sectors block-size)
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80 ;; low water mark
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(length opts-str) opts-str)))))
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;; FIXME: move somewhere else, and do IO in bigger blocks
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(define (zero-dev dev size)
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(define (dd . args)
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(build-command-line (cons "dd" args)))
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(run-ok (dd "if=/dev/zero"
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(string-append "of=" (dm-device-path dev))
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"bs=512" (fmt #f "count=" (to-sectors size)))))
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;; The contents should be
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(define (with-ini-file-fn section contents fn)
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(define (expand-elt pair)
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(cat (car pair) "=" (cadr pair) nl))
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(let ((expanded-contents
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(fmt #f
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(cat "[" section "]" nl)
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(apply-cat (map expand-elt contents)))))
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(with-temp-file-containing ((v "fio" expanded-contents))
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(fn v))))
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(define-syntax with-ini-file
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(syntax-rules ()
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((_ (tmp section contents) b1 b2 ...)
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(with-ini-file-fn section contents (lambda (tmp) b1 b2 ...)))))
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(define (rand-write-and-verify dev)
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(with-ini-file (fio-input "write-and-verify"
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`(("rw" "randwrite")
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("bs" "4k")
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("direct" 1)
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("ioengine" "libaio")
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("iodepth" 16)
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("verify" "crc32c")
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("filename" ,(dm-device-path dev))))
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(run-ok (fmt #f "fio " fio-input))))
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(define (with-pool-fn fast-allocator slow-allocator size block-size fn)
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(let ((metadata-table (list (fast-allocator (meg 32))))
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(data-table (list (slow-allocator size))))
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(with-devices ((md (generate-dev-name) "" metadata-table)
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(data (generate-dev-name) "" data-table))
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(zero-dev md (kilo 4))
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(let ((ptable (pool-table md data size block-size (thin-pool-options))))
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(with-device (pool (generate-dev-name) "" ptable)
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(fn pool))))))
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(define-syntax with-pool
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(syntax-rules ()
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((_ (pool md-allocator data-allocator size block-size) b1 b2 ...)
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(with-pool-fn md-allocator
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data-allocator
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size
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block-size
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(lambda (pool) b1 b2 ...)))))
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(define-syntax define-thin-scenario
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(syntax-rules ()
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((_ path (pool size) desc b1 b2 ...)
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(define-dm-scenario path desc
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(with-pool-fn (mk-fast-allocator)
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(mk-slow-allocator)
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size
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(kilo 64)
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(lambda (pool) b1 b2 ...))))))
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(define generate-dev-name
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(let ((nr 0))
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(lambda ()
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(let ((name (fmt #f "test-dev-" nr)))
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(set! nr (+ nr 1))
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name))))
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(define (thin-table pool id size)
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(list
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(make-target (to-sectors size) "thin" (build-args-string (dm-device-path pool) id))))
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(define (create-thin pool id)
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(message pool 0 (fmt #f "create_thin " id)))
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(define (create-snap pool new-id origin-id)
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(message pool 0 (fmt #f "create_snap " new-id " " origin-id)))
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(define (with-thin-fn pool id size fn)
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(with-device-fn (generate-dev-name) "" (thin-table pool id size) fn))
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(define (with-new-thin-fn pool id size fn)
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(create-thin pool id)
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(with-thin-fn pool id size fn))
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(define-syntax with-thin
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(syntax-rules ()
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((_ (thin pool id size) b1 b2 ...)
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(with-thin-fn pool id size (lambda (thin) b1 b2 ...)))))
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(define-syntax with-new-thin
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(syntax-rules ()
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((_ (thin pool id size) b1 b2 ...)
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(with-new-thin-fn pool id size (lambda (thin)
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b1 b2 ...)))))
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;;;-----------------------------------------------------------
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;;; scenarios
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;;; Fundamental dm scenarios
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;;;-----------------------------------------------------------
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(define-scenario (dm create-interface)
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"create and destroy an ioctl interface object"
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@ -99,50 +245,146 @@
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(with-dm
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(with-empty-device (dev "foo" "uuid")
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;; FIXME: export contructor for linear targets
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(load-table dev (list (linear (make-segment test-dev 0 102400)))))))
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(load-table dev (list (linear (make-segment fast-dev 0 102400)))))))
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(define-dm-scenario (dm load-many-targets) (pv)
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(define-dm-scenario (dm load-many-targets)
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"You can load a large target table"
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(with-empty-device (dev "foo" "uuid")
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(load-table dev (linear-table pv 32))))
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(load-table dev (linear-table (mk-fast-allocator) 32))))
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(define-dm-scenario (dm resume-works) (pv)
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(define-dm-scenario (dm resume-works)
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"You can resume a new target with a table"
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(with-empty-device (dev "foo" "uuid")
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(load-table dev (linear-table pv 8))
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(load-table dev (linear-table (mk-fast-allocator) 8))
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(resume-device dev)))
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(define-dm-scenario (dm suspend-resume-cycle) (pv)
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(define-dm-scenario (dm suspend-resume-cycle)
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"You can pause a device."
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(with-device (dev "foo" "uuid" (linear-table pv 8))
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(with-device (dev "foo" "uuid" (linear-table (mk-fast-allocator) 8))
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(suspend-device dev)
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(resume-device dev)))
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(define-dm-scenario (dm reload-table) (pv)
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(define-dm-scenario (dm reload-table)
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"You can reload a table"
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(with-device (dev "foo" "uuid" (linear-table pv 16))
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(pause-device dev
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(load-table dev (linear-table pv 8)))))
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(let ((pv (mk-fast-allocator)))
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(with-device (dev "foo" "uuid" (linear-table pv 16))
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(pause-device dev
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(load-table dev (linear-table pv 8))))))
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(define-dm-scenario (dm list-devices) (pv)
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(define-dm-scenario (dm list-devices)
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"list-devices works"
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(with-devices ((dev1 "foo" "uuid" (linear-table pv 4))
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(dev2 "bar" "uuid2" (linear-table pv 4)))
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(let ((names (map device-details-name (list-devices))))
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(assert-member? "foo" names)
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(assert-member? "bar" names))))
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(let ((pv (mk-fast-allocator)))
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(with-devices ((dev1 "foo" "uuid" (linear-table pv 4))
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(dev2 "bar" "uuid2" (linear-table pv 4)))
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(let ((names (map device-details-name (list-devices))))
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(assert-member? "foo" names)
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(assert-member? "bar" names)))))
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(define-dm-scenario (dm get-status) (pv)
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(define-dm-scenario (dm get-status)
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"get-status works"
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(let ((table (linear-table pv 4)))
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(let ((table (linear-table (mk-fast-allocator) 4)))
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(with-device (dev "foo" "uuid" table)
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(let ((status (get-status dev)))
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(assert-every similar-targets table status)))))
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(define-dm-scenario (dm get-table) (pv)
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(define-dm-scenario (dm get-table)
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"get-table works"
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(let ((table (linear-table pv 4)))
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(let ((table (linear-table (mk-fast-allocator) 4)))
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(with-device (dev "foo" "uuid" table)
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(let ((table-out (get-table dev)))
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(assert-every similar-targets table table-out)))))
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)
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;;;-----------------------------------------------------------
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;;; Thin scenarios
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;;;-----------------------------------------------------------
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(define-thin-scenario (thin create-pool) (pool (gig 10))
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"create a pool"
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#t)
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(define-thin-scenario (thin create-thin) (pool (gig 10))
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"create a thin volume larger than the pool"
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(with-new-thin (thin pool 0 (gig 100))
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#t))
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(define-thin-scenario (thin zero-thin) (pool (gig 10))
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"zero a 1 gig thin device"
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(let ((thin-size (gig 1)))
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(with-new-thin (thin pool 0 thin-size)
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(zero-dev thin thin-size))))
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;;;-----------------------------------------------------------
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;;; Thin creation scenarios
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;;;-----------------------------------------------------------
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(define-thin-scenario (thin create lots-of-thins) (pool (gig 10))
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"create lots of empty thin volumes"
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(upto (n 1000) (create-thin pool n)))
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(define-thin-scenario (thin create lots-of-snaps) (pool (gig 10))
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"create lots of snapshots of a single volume"
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(create-thin pool 0)
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(upto (n 999)
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(create-snap pool (+ n 1) 0)))
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(define-thin-scenario (thin create lots-of-recursive-snaps) (pool (gig 10))
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"create lots of recursive snapshots"
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(create-thin pool 0)
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(upto (n 999)
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(create-snap pool (+ n 1) n)))
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(define-thin-scenario (thin create activate-thin-while-pool-suspended-fails) (pool (gig 10))
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"you can't activate a thin device while the pool is suspended"
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(create-thin pool 0)
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(pause-device pool
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(assert-raises
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(with-thin (thin pool 0 (gig 1))
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(fail "activate shouldn't work")))))
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(define-dm-scenario (thin create huge-block-size)
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"huge block sizes are possible"
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(let ((size (sectors 524288)))
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) size)
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(with-new-thin (thin pool 0 size)
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(rand-write-and-verify thin)))))
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;; FIXME: I thought we supported this?
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(define-dm-scenario (thin create non-power-2-block-size-fails)
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"The block size must be a power of 2"
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(assert-raises
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (kilo 57))
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#t)))
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(define-dm-scenario (thin create tiny-block-size-fails)
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"The block size must be at least 64k"
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(assert-raises
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (kilo 32))
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#t)))
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(define-dm-scenario (thin create too-large-block-size-fails)
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"The block size must be less than 2^21 sectors"
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(assert-raises
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (sectors (expt 2 22)))
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#t)))
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(define-dm-scenario (thin create largest-block-size-succeeds)
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"The block size 2^21 sectors should work"
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (sectors (expt 2 21)))
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#t))
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(define-dm-scenario (thin create too-large-thin-dev-fails)
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"The thin-id must be less 2^24"
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (kilo 64))
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(assert-raises
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(create-thin pool (expt 2 24)))))
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(define-dm-scenario (thin create largest-thin-dev-succeeds)
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"The thin-id must be less 2^24"
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(with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (kilo 64))
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(create-thin pool (- (expt 2 24) 1))))
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;; (define-dm-scenario (thin create too-small-metadata-fails)
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;; "16k metadata is way too small"
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;; (assert-raises
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;; (with-pool (pool (mk-fast-allocator) (mk-slow-allocator) (gig 10) (kilo 64))
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;; )))
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)
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@ -6,6 +6,10 @@
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with-dm-thunk
|
||||
with-dm
|
||||
|
||||
dm-device
|
||||
dm-device-name
|
||||
dm-device-path
|
||||
|
||||
dm-version
|
||||
get-version
|
||||
remove-all
|
||||
@ -21,7 +25,9 @@
|
||||
|
||||
load-table
|
||||
remove-device
|
||||
with-empty-device-fn
|
||||
with-empty-device
|
||||
with-device-fn
|
||||
with-device
|
||||
with-devices
|
||||
suspend-device
|
||||
@ -37,7 +43,9 @@
|
||||
device-details-minor
|
||||
|
||||
get-status
|
||||
get-table)
|
||||
get-table
|
||||
|
||||
message)
|
||||
|
||||
(import (chezscheme)
|
||||
(fmt fmt)
|
||||
@ -58,6 +66,9 @@
|
||||
|
||||
(define-record-type dm-device (fields (mutable name)))
|
||||
|
||||
(define (dm-device-path d)
|
||||
(fmt #f (dsp "/dev/mapper/") (dsp (dm-device-name d))))
|
||||
|
||||
(define open% (foreign-procedure "dm_open" () (* DMIoctlInterface)))
|
||||
|
||||
(define (dm-open)
|
||||
@ -272,22 +283,29 @@
|
||||
(unless (zero? (load (current-dm-interface) (dm-device-name dev) ctargets))
|
||||
(fail "dm_load failed")))))
|
||||
|
||||
(define (with-empty-device-fn name uuid fn)
|
||||
(let ((v (create-device name uuid)))
|
||||
(dynamic-wind
|
||||
(lambda () #f)
|
||||
(lambda () (fn v))
|
||||
(lambda () (remove-device v)))))
|
||||
|
||||
(define-syntax with-empty-device
|
||||
(syntax-rules ()
|
||||
((_ (var name uuid) b1 b2 ...)
|
||||
(let ((var (create-device name uuid)))
|
||||
(dynamic-wind
|
||||
(lambda () #f)
|
||||
(lambda () b1 b2 ...)
|
||||
(lambda () (remove-device var)))))))
|
||||
(with-empty-device-fn name uuid (lambda (var) b1 b2 ...)))))
|
||||
|
||||
(define (with-device-fn name uuid table fn)
|
||||
(with-empty-device-fn name uuid
|
||||
(lambda (v)
|
||||
(load-table v table)
|
||||
(resume-device v)
|
||||
(fn v))))
|
||||
|
||||
(define-syntax with-device
|
||||
(syntax-rules ()
|
||||
((_ (var name uuid table) b1 b2 ...)
|
||||
(with-empty-device (var name uuid)
|
||||
(load-table var table)
|
||||
(resume-device var)
|
||||
b1 b2 ...))))
|
||||
(with-device-fn name uuid table (lambda (var) b1 b2 ...)))))
|
||||
|
||||
(define-syntax with-devices
|
||||
(syntax-rules ()
|
||||
@ -337,4 +355,11 @@
|
||||
(foreign-procedure "dm_table" ((* DMIoctlInterface) string (* TargetPtr)) int))
|
||||
|
||||
(do-status dev get-status "dm_table"))
|
||||
|
||||
(define (message dev sector msg)
|
||||
(define c-message
|
||||
(foreign-procedure "dm_message" ((* DMIoctlInterface) string unsigned-64 string) int))
|
||||
|
||||
(unless (zero? (c-message (current-dm-interface) (dm-device-name dev) sector msg))
|
||||
(fail (fmt #f "message ioctl failed"))))
|
||||
)
|
||||
|
||||
@ -1,6 +1,25 @@
|
||||
(library
|
||||
(disk-units)
|
||||
(export meg)
|
||||
(import (rnrs))
|
||||
(export bytes
|
||||
sectors
|
||||
kilo
|
||||
meg
|
||||
gig
|
||||
tera
|
||||
to-bytes
|
||||
to-sectors)
|
||||
(import (rnrs)
|
||||
(math-utils))
|
||||
|
||||
(define (meg n) (* 1024 1024 n)))
|
||||
(define-record-type disk-size (fields (mutable sectors)))
|
||||
|
||||
(define (bytes n) (make-disk-size (div-up n 512)))
|
||||
(define (sectors n) (make-disk-size n))
|
||||
(define (kilo n) (make-disk-size (* n 2)))
|
||||
(define (meg n) (make-disk-size (* n 2 1024)))
|
||||
(define (gig n) (make-disk-size (* n 1024 1024)))
|
||||
(define (tera n) (make-disk-size (* n 1024 104 1024)))
|
||||
|
||||
(define (to-bytes ds) (* 512 (disk-size-sectors ds)))
|
||||
(define (to-sectors ds) (disk-size-sectors ds))
|
||||
)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user