Mercurial > hg
view tests/test-pull-pull-corruption.t @ 41506:3e89736b98ce
py3: conditionalize test-demandimport.py for Python 3
The Python 3 lazy importer uses the LazyLoader that is part of
importlib.
On Python 3 and later, LazyLoader is implemented using a custom module
type that defines a __getattribute__ which triggers module loading.
Furthermore, there are additional differences as well. For example,
it appears that Python 3 will return an existing sys.modules
entry instead of constructing a new module object.
This commit adds additional test coverage for lazy importing
behavior to cover the differences between Python 2 and 3. This
reveals that the test and some lazy import functionality is kinda
busted. For example, the test assumes "contextlib" will be lazy.
But in reality an import before it has already imported contextlib!
There's definitely room to improve the behavior of the demand
importer code, both for Python 2 and 3. But at least the test
passes on Python 3 now.
Differential Revision: https://phab.mercurial-scm.org/D5796
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Fri, 01 Feb 2019 16:47:29 -0800 |
parents | f1186c292d03 |
children | 2f2682f40ea0 |
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Corrupt an hg repo with two pulls. create one repo with a long history $ hg init source1 $ cd source1 $ touch foo $ hg add foo $ for i in 1 2 3 4 5 6 7 8 9 10; do > echo $i >> foo > hg ci -m $i > done $ cd .. create one repo with a shorter history $ hg clone -r 0 source1 source2 adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets 495a0ec48aaf updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd source2 $ echo a >> foo $ hg ci -m a $ cd .. create a third repo to pull both other repos into it $ hg init corrupted $ cd corrupted use a hook to make the second pull start while the first one is still running $ echo '[hooks]' >> .hg/hgrc $ echo 'prechangegroup = sleep 5' >> .hg/hgrc start a pull... $ hg pull ../source1 > pull.out 2>&1 & ... and start another pull before the first one has finished $ sleep 1 $ hg pull ../source2 2>/dev/null pulling from ../source2 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets ca3c05af513e (run 'hg heads' to see heads, 'hg merge' to merge) $ cat pull.out pulling from ../source1 requesting all changes adding changesets adding manifests adding file changes added 10 changesets with 10 changes to 1 files new changesets 495a0ec48aaf:1e7b6c812ca8 (run 'hg update' to get a working copy) see the result $ wait $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 11 changesets with 11 changes to 1 files $ cd ..