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run-tests: mechanism to report exceptions during test execution...
run-tests: mechanism to report exceptions during test execution Sometimes when running tests you introduce a ton of exceptions. The most extreme example of this is running Mercurial with Python 3, which currently spews thousands of exceptions when running the test harness. This commit adds an opt-in feature to run-tests.py to aggregate exceptions encountered by `hg` when running tests. When --exceptions is used, the test harness enables the "logexceptions" extension in the test environment. This extension wraps the Mercurial function to handle exceptions and writes information about the exception to a random filename in a directory defined by the test harness via an environment variable. At the end of the test harness, these files are parsed, aggregated, and a list of all unique Mercurial frames triggering exceptions is printed in order of frequency. This feature is intended to aid Python 3 development. I've only really tested it on Python 3. There is no shortage of improvements that could be made. e.g. we could write a separate file containing the exception report - maybe even an HTML report. We also don't capture which tests demonstrate the exceptions, so there's no turnkey way to test whether a code change made an exception disappear. Perfect is the enemy of good. I think the current patch is useful enough to land. Whoever uses it can send patches to imprve its usefulness. Differential Revision: https://phab.mercurial-scm.org/D1477

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test-lfs-test-server.t
126 lines | 3.7 KiB | text/troff | Tads3Lexer
/ tests / test-lfs-test-server.t
#require lfs-test-server
$ LFS_LISTEN="tcp://:$HGPORT"
$ LFS_HOST="localhost:$HGPORT"
$ LFS_PUBLIC=1
$ export LFS_LISTEN LFS_HOST LFS_PUBLIC
#if no-windows
$ lfs-test-server &> lfs-server.log &
$ echo $! >> $DAEMON_PIDS
#else
$ cat >> $TESTTMP/spawn.py <<EOF
> import os
> import subprocess
> import sys
>
> for path in os.environ["PATH"].split(os.pathsep):
> exe = os.path.join(path, 'lfs-test-server.exe')
> if os.path.exists(exe):
> with open('lfs-server.log', 'wb') as out:
> p = subprocess.Popen(exe, stdout=out, stderr=out)
> sys.stdout.write('%s\n' % p.pid)
> sys.exit(0)
> sys.exit(1)
> EOF
$ $PYTHON $TESTTMP/spawn.py >> $DAEMON_PIDS
#endif
$ cat >> $HGRCPATH <<EOF
> [extensions]
> lfs=
> [lfs]
> url=http://foo:bar@$LFS_HOST/
> threshold=1
> EOF
$ hg init repo1
$ cd repo1
$ echo THIS-IS-LFS > a
$ hg commit -m a -A a
$ hg init ../repo2
$ hg push ../repo2 -v
pushing to ../repo2
searching for changes
lfs: uploading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
1 changesets found
uncompressed size of bundle content:
* (changelog) (glob)
* (manifests) (glob)
* a (glob)
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
$ cd ../repo2
$ hg update tip -v
resolving manifests
getting a
lfs: downloading 31cf46fbc4ecd458a0943c5b4881f1f5a6dd36c53d6167d5b69ac45149b38e5b (12 bytes)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
When the server has some blobs already
$ hg mv a b
$ echo ANOTHER-LARGE-FILE > c
$ echo ANOTHER-LARGE-FILE2 > d
$ hg commit -m b-and-c -A b c d
$ hg push ../repo1 -v | grep -v '^ '
pushing to ../repo1
searching for changes
lfs: need to transfer 2 objects (39 bytes)
lfs: uploading 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 (20 bytes)
lfs: uploading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
1 changesets found
uncompressed size of bundle content:
adding changesets
adding manifests
adding file changes
added 1 changesets with 3 changes to 3 files
$ hg --repo ../repo1 update tip -v
resolving manifests
getting b
getting c
lfs: downloading d11e1a642b60813aee592094109b406089b8dff4cb157157f753418ec7857998 (19 bytes)
getting d
lfs: downloading 37a65ab78d5ecda767e8622c248b5dbff1e68b1678ab0e730d5eb8601ec8ad19 (20 bytes)
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
Check error message when the remote missed a blob:
$ echo FFFFF > b
$ hg commit -m b -A b
$ echo FFFFF >> b
$ hg commit -m b b
$ rm -rf .hg/store/lfs
$ hg update -C '.^'
abort: LFS server claims required objects do not exist:
8e6ea5f6c066b44a0efa43bcce86aea73f17e6e23f0663df0251e7524e140a13!
[255]
Check error message when object does not exist:
$ hg init test && cd test
$ echo "[extensions]" >> .hg/hgrc
$ echo "lfs=" >> .hg/hgrc
$ echo "[lfs]" >> .hg/hgrc
$ echo "threshold=1" >> .hg/hgrc
$ echo a > a
$ hg add a
$ hg commit -m 'test'
$ echo aaaaa > a
$ hg commit -m 'largefile'
$ hg debugdata .hg/store/data/a.i 1 # verify this is no the file content but includes "oid", the LFS "pointer".
version https://git-lfs.github.com/spec/v1
oid sha256:bdc26931acfb734b142a8d675f205becf27560dc461f501822de13274fe6fc8a
size 6
x-is-binary 0
$ cd ..
$ hg --config 'lfs.url=https://dewey-lfs.vip.facebook.com/lfs' clone test test2
updating to branch default
abort: LFS server error. Remote object for file data/a.i not found:(.*)! (re)
[255]
$ $PYTHON $RUNTESTDIR/killdaemons.py $DAEMON_PIDS