tests for ctime #10

New Issue

2023-10-16T23:29:53+01:00

github-actions[bot] commented

2023-10-16 23:29:53 +01:00

(Migrated from github.com)

e.g. using https://serverfault.com/questions/520322/unix-ctime-how-to-keep-this-precious-information-in-backups-tar

or https://www.halfgaar.net/backing-up-unix

or simply find -print0 | xargs -0 stat

Note that on ext4 we can't access this information without root permissions: https://unix.stackexchange.com/questions/50177/birth-is-empty-on-ext4

2a7541b7b0/test.sh (L61)


#!/usr/bin/env bash

set -euET -o pipefail

fusermount -u test/mnt || true
rm test -fr
mkdir test test/cache test/mnt
cp -ai source test/source

find test/source -print0 | xargs -0r touch --no-dereference --date="2023-01-01 00:00Z"
find expected_test_result -print0 | xargs -0r touch --no-dereference --date="2023-01-01 00:00Z"

# TODO: are the chmod preserved by git commit + git checkout ?

./fs.py test/source test/cache test/mnt > test/fs.log & pid=$!

run_tests() {
  # make sure any mtime errors will show up
  sleep 1.1

  # TODO: use foreground=False instead of & pid=$!
  for i in `seq 20`; do
    if test -e test/mnt/exists; then
      break
    else
        printf '.'
        sleep 0.1
    fi
  done
  printf '\n'

  echo 01; test -e test/mnt/exists
  echo 02; touch --date='2023-02-02 00:00Z' test/mnt/touch  && touch --date='2023-02-02 00:00Z'        expected_test_result/touch
  echo 03; touch --date='2023-02-02 00:00Z' test/mnt/create && touch --date='2023-02-02 00:00Z'        expected_test_result/create
  echo 04; echo 42 > test/mnt/create_write                  && touch --reference=test/mnt/create_write expected_test_result/create_write
  echo 05; echo 'Append' >> test/mnt/append                 && touch --reference=test/mnt/append       expected_test_result/append
  echo 06; echo 'This is an overwrite' > test/mnt/overwrite && touch --reference=test/mnt/overwrite    expected_test_result/overwrite
  echo 07; truncate --size=6 test/mnt/truncate              && touch --reference=test/mnt/truncate     expected_test_result/truncate
  echo 08; mknod -m 644 test/mnt/mknod644p p                && touch --reference=test/mnt/truncate     expected_test_result/mknod644p
  # TODO: test that a _peek cached but not _get cached file has the correct mtime?
  
  # reset the mtime of the modified directories
  #touch --date='2023-01-01 00:00Z' test/mnt/some_dir # unmodified
  touch --date='2023-01-01 00:00Z' test/mnt

  echo 99; cp -ai test/mnt test/actual_result
  echo uu; fusermount -u test/mnt
  echo ta; tar -cf test/actual.tar   -C test/actual_result/   .
  echo te; tar -cf test/expected.tar -C expected_test_result/ .
  echo dd; diffoscope test/actual.tar test/expected.tar
}

if run_tests; then
  printf '\033[1;32mSuccess\033[m\n'
else
  printf '\033[1;31mFailure\033[m\n'
  fusermount -u test/mnt || kill -KILL $pid
  exit 1
fi

# TODO: tests for ctime
#       e.g. using https://serverfault.com/questions/520322/unix-ctime-how-to-keep-this-precious-information-in-backups-tar
#       or https://www.halfgaar.net/backing-up-unix
#       or simply find -print0 | xargs -0 stat
#       Note that on ext4 we can't access this information without root permissions: https://unix.stackexchange.com/questions/50177/birth-is-empty-on-ext4

e\.g\. using https://serverfault\.com/questions/520322/unix\-ctime\-how\-to\-keep\-this\-precious\-information\-in\-backups\-tar or https://www\.halfgaar\.net/backing\-up\-unix or simply find \-print0 \| xargs \-0 stat Note that on ext4 we can't access this information without root permissions: https://unix\.stackexchange\.com/questions/50177/birth\-is\-empty\-on\-ext4 https://api.github.com/SuzanneSoy/filesystem-fuse/blob/2a7541b7b05c741840a5caf6d8a0bda8a5e8e599/test.sh#L61 ```sh #!/usr/bin/env bash set -euET -o pipefail fusermount -u test/mnt || true rm test -fr mkdir test test/cache test/mnt cp -ai source test/source find test/source -print0 | xargs -0r touch --no-dereference --date="2023-01-01 00:00Z" find expected_test_result -print0 | xargs -0r touch --no-dereference --date="2023-01-01 00:00Z" # TODO: are the chmod preserved by git commit + git checkout ? ./fs.py test/source test/cache test/mnt > test/fs.log & pid=$! run_tests() { # make sure any mtime errors will show up sleep 1.1 # TODO: use foreground=False instead of & pid=$! for i in `seq 20`; do if test -e test/mnt/exists; then break else printf '.' sleep 0.1 fi done printf '\n' echo 01; test -e test/mnt/exists echo 02; touch --date='2023-02-02 00:00Z' test/mnt/touch && touch --date='2023-02-02 00:00Z' expected_test_result/touch echo 03; touch --date='2023-02-02 00:00Z' test/mnt/create && touch --date='2023-02-02 00:00Z' expected_test_result/create echo 04; echo 42 > test/mnt/create_write && touch --reference=test/mnt/create_write expected_test_result/create_write echo 05; echo 'Append' >> test/mnt/append && touch --reference=test/mnt/append expected_test_result/append echo 06; echo 'This is an overwrite' > test/mnt/overwrite && touch --reference=test/mnt/overwrite expected_test_result/overwrite echo 07; truncate --size=6 test/mnt/truncate && touch --reference=test/mnt/truncate expected_test_result/truncate echo 08; mknod -m 644 test/mnt/mknod644p p && touch --reference=test/mnt/truncate expected_test_result/mknod644p # TODO: test that a _peek cached but not _get cached file has the correct mtime? # reset the mtime of the modified directories #touch --date='2023-01-01 00:00Z' test/mnt/some_dir # unmodified touch --date='2023-01-01 00:00Z' test/mnt echo 99; cp -ai test/mnt test/actual_result echo uu; fusermount -u test/mnt echo ta; tar -cf test/actual.tar -C test/actual_result/ . echo te; tar -cf test/expected.tar -C expected_test_result/ . echo dd; diffoscope test/actual.tar test/expected.tar } if run_tests; then printf '\033[1;32mSuccess\033[m\n' else printf '\033[1;31mFailure\033[m\n' fusermount -u test/mnt || kill -KILL $pid exit 1 fi # TODO: tests for ctime # e.g. using https://serverfault.com/questions/520322/unix-ctime-how-to-keep-this-precious-information-in-backups-tar # or https://www.halfgaar.net/backing-up-unix # or simply find -print0 | xargs -0 stat # Note that on ext4 we can't access this information without root permissions: https://unix.stackexchange.com/questions/50177/birth-is-empty-on-ext4 ```

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