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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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r34662:eb586ed5 default
r35191:bd8875b6 default
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test-mq-safety.t
216 lines | 4.8 KiB | text/troff | Tads3Lexer
$ echo '[extensions]' >> $HGRCPATH
$ echo 'hgext.mq =' >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo foo > foo
$ hg ci -qAm 'add a file'
$ hg qinit
$ hg qnew foo
$ echo foo >> foo
$ hg qrefresh -m 'append foo'
$ hg qnew bar
$ echo bar >> foo
$ hg qrefresh -m 'append bar'
Try to operate on public mq changeset
$ hg qpop
popping bar
now at: foo
$ hg phase --public qbase
$ echo babar >> foo
$ hg qref
abort: cannot qrefresh public revision
(see 'hg help phases' for details)
[255]
$ hg revert -a
reverting foo
$ hg qpop
abort: popping would remove a public revision
(see 'hg help phases' for details)
[255]
$ hg qfold bar
abort: cannot qrefresh public revision
(see 'hg help phases' for details)
[255]
$ hg revert -a
reverting foo
restore state for remaining test
$ hg qpush
applying bar
now at: bar
try to commit on top of a patch
$ echo quux >> foo
$ hg ci -m 'append quux'
abort: cannot commit over an applied mq patch
[255]
cheat a bit...
$ mv .hg/patches .hg/patches2
$ hg ci -m 'append quux'
$ mv .hg/patches2 .hg/patches
qpop/qrefresh on the wrong revision
$ hg qpop
abort: popping would remove a revision not managed by this patch queue
[255]
$ hg qpop -n patches
using patch queue: $TESTTMP/repo/.hg/patches (glob)
abort: popping would remove a revision not managed by this patch queue
[255]
$ hg qrefresh
abort: working directory revision is not qtip
[255]
$ hg up -C qtip
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg qpop
abort: popping would remove a revision not managed by this patch queue
[255]
$ hg qrefresh
abort: cannot qrefresh a revision with children
[255]
$ hg tip --template '{rev} {desc}\n'
3 append quux
qpush warning branchheads
$ cd ..
$ hg init branchy
$ cd branchy
$ echo q > q
$ hg add q
$ hg qnew -f qp
$ hg qpop
popping qp
patch queue now empty
$ echo a > a
$ hg ci -Ama
adding a
$ hg up null
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg branch b
marked working directory as branch b
(branches are permanent and global, did you want a bookmark?)
$ echo c > c
$ hg ci -Amc
adding c
$ hg merge default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -mmerge
$ hg up default
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log
changeset: 2:65309210bf4e
branch: b
tag: tip
parent: 1:707adb4c8ae1
parent: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge
changeset: 1:707adb4c8ae1
branch: b
parent: -1:000000000000
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ hg qpush
applying qp
now at: qp
Testing applied patches, push and --force
$ cd ..
$ hg init forcepush
$ cd forcepush
$ echo a > a
$ hg ci -Am adda
adding a
$ echo a >> a
$ hg ci -m changea
$ hg up 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg branch branch
marked working directory as branch branch
(branches are permanent and global, did you want a bookmark?)
$ echo b > b
$ hg ci -Am addb
adding b
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg --cwd .. clone -r 0 forcepush forcepush2
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 07f494440405
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo a >> a
$ hg qnew patch
Pushing applied patch with --rev without --force
$ hg push -r . ../forcepush2
pushing to ../forcepush2
abort: source has mq patches applied
[255]
Pushing applied patch with branchhash, without --force
$ hg push ../forcepush2#default
pushing to ../forcepush2
abort: source has mq patches applied
[255]
Pushing revs excluding applied patch
$ hg push --new-branch -r 'branch(branch)' -r 2 ../forcepush2
pushing to ../forcepush2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
Pushing applied patch with --force
$ hg phase --force --secret 'mq()'
$ hg push --force -r default ../forcepush2
pushing to ../forcepush2
searching for changes
no changes found (ignored 1 secret changesets)
[1]
$ hg phase --draft 'mq()'
$ hg push --force -r default ../forcepush2
pushing to ../forcepush2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
$ cd ..