384 lines
14 KiB
Scheme
384 lines
14 KiB
Scheme
(library
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(cache-functional-tests)
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(export register-cache-tests)
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(import (chezscheme)
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(disk-units)
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(functional-tests)
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(cache-xml)
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(fmt fmt)
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(process)
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(scenario-string-constants)
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(temp-file)
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(srfi s8 receive))
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(define-tool cache-check)
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(define-tool cache-dump)
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(define-tool cache-restore)
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(define-tool cache-metadata-size)
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(define-tool cache-repair)
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(define-syntax with-cache-xml
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(syntax-rules ()
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((_ (v) b1 b2 ...)
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(with-temp-file-containing ((v "cache.xml" (fmt #f (generate-xml 512 1024 128))))
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b1 b2 ...))))
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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" (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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;;; It would be nice if the metadata was at least similar to valid data.
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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" (to-bytes (meg 4))))
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(system (fmt #f "dd if=/usr/bin/ls of=" md " bs=4096 > /dev/null 2>&1"))
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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" (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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;; to run.
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(define (register-cache-tests) #t)
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;;;-----------------------------------------------------------
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;;; cache_check scenarios
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;;;-----------------------------------------------------------
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(define-scenario (cache-check v)
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"cache_check -V"
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(run-ok-rcv (stdout _) (cache-check "-V")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-check version)
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"cache_check --version"
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(run-ok-rcv (stdout _) (cache-check "--version")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-check h)
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"cache_check -h"
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(run-ok-rcv (stdout _) (cache-check "-h")
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(assert-equal cache-check-help stdout)))
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(define-scenario (cache-check help)
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"cache_check --help"
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(run-ok-rcv (stdout _) (cache-check "--help")
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(assert-equal cache-check-help stdout)))
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(define-scenario (cache-check must-specify-metadata)
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"Metadata file must be specified"
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(run-fail-rcv (_ stderr) (cache-check)
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(assert-equal
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(string-append "No input file provided.\n"
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cache-check-help)
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stderr)))
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(define-scenario (cache-check no-such-metadata)
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"Metadata file doesn't exist."
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(let ((bad-path "/arbitrary/filename"))
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(run-fail-rcv (_ stderr) (cache-check bad-path)
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(assert-starts-with
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(string-append bad-path ": No such file or directory")
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stderr))))
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(define-scenario (cache-check metadata-file-cannot-be-a-directory)
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"Metadata file must not be a directory"
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(let ((bad-path "/tmp"))
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(run-fail-rcv (_ stderr) (cache-check bad-path)
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(assert-starts-with
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(string-append bad-path ": Not a block device or regular file")
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stderr))))
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(define-scenario (cache-check unreadable-metadata)
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"Metadata file exists, but is unreadable."
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(with-valid-metadata (md)
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(run-ok "chmod" "-r" md)
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(run-fail-rcv (_ stderr) (cache-check md)
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(assert-starts-with "syscall 'open' failed: Permission denied" stderr))))
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(define-scenario (cache-check fails-with-corrupt-metadata)
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"Fail with corrupt superblock"
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(with-corrupt-metadata (md)
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(run-fail (cache-check md))))
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(define-scenario (cache-check failing-q)
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"Fail quietly with -q"
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(with-corrupt-metadata (md)
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(run-fail-rcv (stdout stderr) (cache-check "-q" md)
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(assert-eof stdout)
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(assert-eof stderr))))
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(define-scenario (cache-check failing-quiet)
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"Fail quietly with --quiet"
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(with-corrupt-metadata (md)
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(run-fail-rcv (stdout stderr) (cache-check "--quiet" md)
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(assert-eof stdout)
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(assert-eof stderr))))
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(define-scenario (cache-check valid-metadata-passes)
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"A valid metadata area passes"
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(with-valid-metadata (md)
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(run-ok (cache-check md))))
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(define-scenario (cache-check bad-metadata-version)
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"Invalid metadata version fails"
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(with-cache-xml (xml)
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(with-empty-metadata (md)
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(cache-restore "-i" xml "-o" md "--debug-override-metadata-version" "12345")
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(run-fail (cache-check md)))))
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(define-scenario (cache-check tiny-metadata)
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"Prints helpful message in case tiny metadata given"
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(with-temp-file-sized ((md "cache.bin" 1024))
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(run-fail-rcv (_ stderr) (cache-check md)
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(assert-starts-with "Metadata device/file too small. Is this binary metadata?" stderr))))
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(define-scenario (cache-check spot-accidental-xml-data)
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"Prints helpful message if XML metadata given"
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(with-cache-xml (xml)
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(system (fmt #f "man bash >> " xml))
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(run-fail-rcv (_ stderr) (cache-check xml)
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(assert-matches ".*This looks like XML. cache_check only checks the binary metadata format." stderr))))
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;;;-----------------------------------------------------------
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;;; cache_restore scenarios
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;;;-----------------------------------------------------------
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(define-scenario (cache-restore v)
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"print version (-V flag)"
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(run-ok-rcv (stdout _) (cache-restore "-V")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-restore version)
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"print version (--version flags)"
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(run-ok-rcv (stdout _) (cache-restore "--version")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-restore h)
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"cache_restore -h"
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(run-ok-rcv (stdout _) (cache-restore "-h")
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(assert-equal cache-restore-help stdout)))
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(define-scenario (cache-restore help)
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"cache_restore --help"
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(run-ok-rcv (stdout _) (cache-restore "--help")
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(assert-equal cache-restore-help stdout)))
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(define-scenario (cache-restore no-input-file)
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"forget to specify an input file"
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(with-empty-metadata (md)
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(run-fail-rcv (_ stderr) (cache-restore "-o" md)
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(assert-starts-with "No input file provided." stderr))))
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(define-scenario (cache-restore missing-input-file)
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"the input file can't be found"
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(with-empty-metadata (md)
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(run-fail-rcv (_ stderr) (cache-restore "-i no-such-file -o" md)
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(assert-superblock-all-zeroes md)
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(assert-starts-with "Couldn't stat file" stderr))))
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(define-scenario (cache-restore garbage-input-file)
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"the input file is just zeroes"
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(with-empty-metadata (md)
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(with-temp-file-sized ((xml "cache.xml" 4096))
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(run-fail-rcv (_ stderr) (cache-restore "-i" xml "-o" md)
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(assert-superblock-all-zeroes md)))))
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(define-scenario (cache-restore missing-output-file)
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"the output file can't be found"
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(with-cache-xml (xml)
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(run-fail-rcv (_ stderr) (cache-restore "-i" xml)
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(assert-starts-with "No output file provided." stderr))))
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(define-scenario (cache-restore tiny-output-file)
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"Fails if the output file is too small."
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(with-temp-file-sized ((md "cache.bin" (* 1024 4)))
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(with-cache-xml (xml)
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(run-fail-rcv (_ stderr) (cache-restore "-i" xml "-o" md)
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(assert-starts-with cache-restore-outfile-too-small-text stderr)))))
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(define-scenario (cache-restore successfully-restores)
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"Restore succeeds."
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(with-empty-metadata (md)
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(with-cache-xml (xml)
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(run-ok (cache-restore "-i" xml "-o" md)))))
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(define-scenario (cache-restore q)
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"cache_restore accepts -q"
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(with-empty-metadata (md)
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(with-cache-xml (xml)
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(run-ok-rcv (stdout stderr) (cache-restore "-i" xml "-o" md "-q")
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(assert-eof stdout)
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(assert-eof stderr)))))
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(define-scenario (cache-restore quiet)
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"cache_restore accepts --quiet"
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(with-empty-metadata (md)
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(with-cache-xml (xml)
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(run-ok-rcv (stdout stderr) (cache-restore "-i" xml "-o" md "--quiet")
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(assert-eof stdout)
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(assert-eof stderr)))))
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(define-scenario (cache-restore override-metadata-version)
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"we can set any metadata version"
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(with-empty-metadata (md)
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(with-cache-xml (xml)
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(run-ok
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(cache-restore "-i" xml "-o" md "--debug-override-metadata-version 10298")))))
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(define-scenario (cache-restore omit-clean-shutdown)
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"accepts --omit-clean-shutdown"
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(with-empty-metadata (md)
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(with-cache-xml (xml)
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(run-ok
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(cache-restore "-i" xml "-o" md "--omit-clean-shutdown")))))
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;;;-----------------------------------------------------------
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;;; cache_dump scenarios
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;;;-----------------------------------------------------------
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(define-scenario (cache-dump v)
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"print version (-V flag)"
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(run-ok-rcv (stdout _) (cache-dump "-V")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-dump version)
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"print version (--version flags)"
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(run-ok-rcv (stdout _) (cache-dump "--version")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-dump h)
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"cache_dump -h"
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(run-ok-rcv (stdout _) (cache-dump "-h")
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(assert-equal cache-dump-help stdout)))
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(define-scenario (cache-dump help)
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"cache_dump --help"
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(run-ok-rcv (stdout _) (cache-dump "--help")
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(assert-equal cache-dump-help stdout)))
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(define-scenario (cache-dump missing-input-file)
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"Fails with missing input file."
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(run-fail-rcv (stdout stderr) (cache-dump)
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(assert-starts-with "No input file provided." stderr)))
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(define-scenario (cache-dump small-input-file)
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"Fails with small input file"
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(with-temp-file-sized ((md "cache.bin" 512))
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(run-fail
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(cache-dump md))))
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(define-scenario (cache-dump restore-is-noop)
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"cache_dump followed by cache_restore is a noop."
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(with-valid-metadata (md)
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(run-ok-rcv (d1-stdout _) (cache-dump md)
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(with-temp-file-containing ((xml "cache.xml" d1-stdout))
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(run-ok (cache-restore "-i" xml "-o" md))
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(run-ok-rcv (d2-stdout _) (cache-dump md)
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(assert-equal d1-stdout d2-stdout))))))
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;;;-----------------------------------------------------------
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;;; cache_metadata_size scenarios
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;;;-----------------------------------------------------------
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(define-scenario (cache-metadata-size v)
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"cache_metadata_size -V"
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(run-ok-rcv (stdout _) (cache-metadata-size "-V")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-metadata-size version)
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"cache_metadata_size --version"
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(run-ok-rcv (stdout _) (cache-metadata-size "--version")
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(assert-equal tools-version stdout)))
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(define-scenario (cache-metadata-size h)
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"cache_metadata_size -h"
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(run-ok-rcv (stdout _) (cache-metadata-size "-h")
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(assert-equal cache-metadata-size-help stdout)))
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(define-scenario (cache-metadata-size help)
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"cache_metadata_size --help"
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(run-ok-rcv (stdout _) (cache-metadata-size "--help")
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(assert-equal cache-metadata-size-help stdout)))
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(define-scenario (cache-metadata-size no-args)
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"No arguments specified causes fail"
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(run-fail-rcv (_ stderr) (cache-metadata-size)
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(assert-equal "Please specify either --device-size and --block-size, or --nr-blocks."
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stderr)))
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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" (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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(define-scenario (cache-metadata-size block-size-only)
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"Just --block-size causes fail"
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(run-fail-rcv (_ stderr) (cache-metadata-size "--block-size" 128)
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(assert-equal "If you specify --block-size you must also give --device-size."
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stderr)))
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(define-scenario (cache-metadata-size conradictory-info-fails)
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"Contradictory info causes fail"
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(run-fail-rcv (_ stderr) (cache-metadata-size "--device-size 102400 --block-size 1000 --nr-blocks 6")
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(assert-equal "Contradictory arguments given, --nr-blocks doesn't match the --device-size and --block-size."
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stderr)))
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(define-scenario (cache-metadata-size all-args-agree)
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"All args agreeing succeeds"
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(run-ok-rcv (stdout stderr) (cache-metadata-size "--device-size" 102400 "--block-size" 100 "--nr-blocks" 1024)
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(assert-equal "8248 sectors" stdout)
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(assert-eof stderr)))
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(define-scenario (cache-metadata-size nr-blocks-alone)
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"Just --nr-blocks succeeds"
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(run-ok-rcv (stdout stderr) (cache-metadata-size "--nr-blocks" 1024)
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(assert-equal "8248 sectors" stdout)
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(assert-eof stderr)))
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(define-scenario (cache-metadata-size dev-size-and-block-size-succeeds)
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"Specifying --device-size with --block-size succeeds"
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(run-ok-rcv (stdout stderr) (cache-metadata-size "--device-size" 102400 "--block-size" 100)
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(assert-equal "8248 sectors" stdout)
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(assert-eof stderr)))
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(define-scenario (cache-metadata-size big-config)
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"A big configuration succeeds"
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(run-ok-rcv (stdout stderr) (cache-metadata-size "--nr-blocks 67108864")
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(assert-equal "3678208 sectors" stdout)
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(assert-eof stderr)))
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;;;-----------------------------------------------------------
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;;; cache_repair scenarios
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;;;-----------------------------------------------------------
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(define-scenario (cache-repair missing-input-file)
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"the input file can't be found"
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(with-empty-metadata (md)
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(run-fail-rcv (_ stderr) (cache-repair "-i no-such-file -o" md)
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(assert-superblock-all-zeroes md)
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(assert-starts-with "Couldn't stat path" stderr))))
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(define-scenario (cache-repair garbage-input-file)
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"the input file is just zeroes"
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(with-empty-metadata (md1)
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(with-corrupt-metadata (md2)
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(run-fail-rcv (_ stderr) (cache-repair "-i" md1 "-o" md2)
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(assert-superblock-all-zeroes md2)))))
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(define-scenario (cache-repair missing-output-file)
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"the output file can't be found"
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(with-cache-xml (xml)
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(run-fail-rcv (_ stderr) (cache-repair "-i" xml)
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(assert-starts-with "No output file provided." stderr))))
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)
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