run-tests: fix `HGTESTEXTRAEXTENSIONS` with py3
Since `extensions` was a str and `section` bytes, it never populated anything.
If it had, it would have put bytes into the environment dictionary that is all
str. As everything starts and ends as str, remove the incomplete attempt at
byteification. It doesn't appear that we had any test coverage of this bit of
code, so also add a non-extension config to make sure it is filtered out
properly.
Differential Revision: https://phab.mercurial-scm.org/D9557
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Test file dedicated to checking side-data related behavior
==========================================================
Check data can be written/read from sidedata
============================================
$ cat << EOF >> $HGRCPATH
> [extensions]
> testsidedata=$TESTDIR/testlib/ext-sidedata.py
> EOF
$ hg init test-sidedata --config format.exp-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
$ hg debugsidedata -c 0
2 sidedata entries
entry-0001 size 4
entry-0002 size 32
$ hg debugsidedata -c 1 -v
2 sidedata entries
entry-0001 size 4
'\x00\x00\x006'
entry-0002 size 32
'\x98\t\xf9\xc4v\xf0\xc5P\x90\xf7wRf\xe8\xe27e\xfc\xc1\x93\xa4\x96\xd0\x1d\x97\xaaG\x1d\xd7t\xfa\xde'
$ hg debugsidedata -m 2
2 sidedata entries
entry-0001 size 4
entry-0002 size 32
$ hg debugsidedata a 1
2 sidedata entries
entry-0001 size 4
entry-0002 size 32
Check upgrade behavior
======================
Right now, sidedata has not upgrade support
Check that we can upgrade to sidedata
-------------------------------------
$ hg init up-no-side-data --config format.exp-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
exp-sharesafe: no no no
sparserevlog: yes yes yes
sidedata: no no no
persistent-nodemap: no no no
copies-sdc: 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.exp-use-side-data=yes
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
exp-sharesafe: no no no
sparserevlog: yes yes yes
sidedata: no yes no
persistent-nodemap: no no no
copies-sdc: no no 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.exp-use-side-data=yes > /dev/null
Check that we can downgrade from sidedata
-----------------------------------------
$ hg init up-side-data --config format.exp-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
exp-sharesafe: no no no
sparserevlog: yes yes yes
sidedata: yes no no
persistent-nodemap: no no no
copies-sdc: no 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.exp-use-side-data=no
format-variant repo config default
fncache: yes yes yes
dotencode: yes yes yes
generaldelta: yes yes yes
exp-sharesafe: no no no
sparserevlog: yes yes yes
sidedata: yes no no
persistent-nodemap: no no no
copies-sdc: no 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.exp-use-side-data=no > /dev/null