tests/test-update-branches

minirst: improve layout of field lists

Before, we used the padding following the key to compute where to wrap
the text. Long keys would thus give a big indentation. It also
required careful alignment of the source text, making it cumbersome to
items to the list.

We now compute the maximum key length and use that for all items in
the list. We also put a cap on the indentation: keys longer than 10
characters are put on their own line. This is similar to how rst2html
handles large keys: it uses 14 as the cutoff point, but I felt that 10
was better for monospaced text in the console.

#!/bin/sh

# 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

echo % initial repo state
echo
hg --config 'extensions.graphlog=' \
    glog --template '{rev}:{node|short} {parents} {branches}\n'

# Test helper functions.

revtest () {
    msg=$1
    dirtyflag=$2   # 'clean' or 'dirty'
    startrev=$3
    targetrev=$4
    opt=$5
    echo % revtest $msg $startrev $targetrev
    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
    echo % norevtest $msg $startrev
    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
norevtest 'none clean same'   clean 2

revtest 'none clean linear' clean 1 2
revtest 'none clean same'   clean 2 3
revtest 'none clean cross'  clean 3 4

revtest 'none dirty linear' dirty 1 2
revtest 'none dirty same'   dirty 2 3
revtest 'none dirty cross'  dirty 3 4

revtest '-C dirty linear'   dirty 1 2 -C
revtest '-c dirty linear'   dirty 1 2 -c
norevtest '-c clean same'   clean 2 -c
revtest '-cC dirty linear'  dirty 1 2 -cC