# Construct the following history tree:
#
# @ 5:e1bb631146ca b1
# |
# o 4:a4fdb3b883c4 0:b608b9236435 b1
# |
# | o 3:4b57d2520816 1:44592833ba9f
# | |
# | | o 2:063f31070f65
# | |/
# | o 1:44592833ba9f
# |/
# o 0:b608b9236435
$ hg init
$ echo foo > foo
$ echo zero > a
$ hg ci -qAm0
$ echo one > a ; hg ci -m1
$ echo two > a ; hg ci -m2
$ hg up -q 1
$ echo three > a ; hg ci -qm3
$ hg up -q 0
$ hg branch -q b1
$ echo four > a ; hg ci -qm4
$ echo five > a ; hg ci -qm5
Initial repo state:
$ hg --config 'extensions.graphlog=' \
> glog --template '{rev}:{node|short} {parents} {branches}\n'
@ 5:e1bb631146ca b1
|
o 4:a4fdb3b883c4 0:b608b9236435 b1
|
| o 3:4b57d2520816 1:44592833ba9f
| |
| | o 2:063f31070f65
| |/
| o 1:44592833ba9f
|/
o 0:b608b9236435
Test helper functions:
$ revtest () {
> msg=$1
> dirtyflag=$2 # 'clean' or 'dirty'
> startrev=$3
> targetrev=$4
> opt=$5
> hg up -qC $startrev
> test $dirtyflag = dirty && echo dirty > foo
> hg up $opt $targetrev
> hg parent --template 'parent={rev}\n'
> hg stat
> }
$ norevtest () {
> msg=$1
> dirtyflag=$2 # 'clean' or 'dirty'
> startrev=$3
> opt=$4
> hg up -qC $startrev
> test $dirtyflag = dirty && echo dirty > foo
> hg up $opt
> hg parent --template 'parent={rev}\n'
> hg stat
> }
Test cases are documented in a table in the update function of merge.py.
Cases are run as shown in that table, row by row.
$ norevtest 'none clean linear' clean 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=5
$ norevtest 'none clean same' clean 2
abort: crosses branches (use 'hg merge' or use 'hg update -c')
parent=2
$ revtest 'none clean linear' clean 1 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=2
$ revtest 'none clean same' clean 2 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=3
$ revtest 'none clean cross' clean 3 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=4
$ revtest 'none dirty linear' dirty 1 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=2
M foo
$ revtest 'none dirty same' dirty 2 3
abort: crosses branches (use 'hg merge' to merge or use 'hg update -C' to discard changes)
parent=2
M foo
$ revtest 'none dirty cross' dirty 3 4
abort: crosses branches (use 'hg merge' to merge or use 'hg update -C' to discard changes)
parent=3
M foo
$ revtest '-C dirty linear' dirty 1 2 -C
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=2
$ revtest '-c dirty linear' dirty 1 2 -c
abort: uncommitted local changes
parent=1
M foo
$ norevtest '-c clean same' clean 2 -c
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
parent=3
$ revtest '-cC dirty linear' dirty 1 2 -cC
abort: cannot specify both -c/--check and -C/--clean
parent=1
M foo