sidedata: test we can successfully write sidedata
For now we just write them and rejoice on the lack of crashes.
Differential Revision: https://phab.mercurial-scm.org/D6896
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Test file dedicated to checking side-data related behavior
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Check data can be written/read from sidedata
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$ cat << EOF >> $HGRCPATH
> [extensions]
> testsidedata=$TESTDIR/testlib/ext-sidedata.py
> EOF
$ hg init test-sidedata --config format.use-side-data=yes
$ cd test-sidedata
$ echo aaa > a
$ hg add a
$ hg commit -m a --traceback
$ echo aaa > b
$ hg add b
$ hg commit -m b
$ echo xxx >> a
$ hg commit -m aa
Check upgrade behavior
======================
Right now, sidedata has not upgrade support
Check that we cannot upgrade to sidedata
----------------------------------------
$ hg init up-no-side-data --config format.use-side-data=no
$ hg debugformat -v -R up-no-side-data
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
sparserevlog: yes yes yes
sidedata: no no no
plain-cl-delta: yes yes yes
compression: zlib zlib zlib
compression-level: default default default
$ hg debugformat -v -R up-no-side-data --config format.use-side-data=yes
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
sparserevlog: yes yes yes
sidedata: no yes no
plain-cl-delta: yes yes yes
compression: zlib zlib zlib
compression-level: default default default
$ hg debugupgraderepo -R up-no-side-data --config format.use-side-data=yes
abort: cannot upgrade repository; do not support adding requirement: exp-sidedata-flag
[255]
Check that we cannot upgrade to sidedata
----------------------------------------
$ hg init up-side-data --config format.use-side-data=yes
$ hg debugformat -v -R up-side-data
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
sparserevlog: yes yes yes
sidedata: yes no no
plain-cl-delta: yes yes yes
compression: zlib zlib zlib
compression-level: default default default
$ hg debugformat -v -R up-side-data --config format.use-side-data=no
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
sparserevlog: yes yes yes
sidedata: yes no no
plain-cl-delta: yes yes yes
compression: zlib zlib zlib
compression-level: default default default
$ hg debugupgraderepo -R up-side-data --config format.use-side-data=no
abort: cannot upgrade repository; requirement would be removed: exp-sidedata-flag
[255]