git/t/t3031-merge-criscross.sh
Jeff King e6821d09e4 t: fix some trivial cases of ignored exit codes in loops
These are all cases where we do a setup step of the form:

  for i in $foo; do
	  set_up $i || break
  done &&
  more_setup

would not notice a failure in set_up (because break always
returns a 0 exit code). These are just setup steps that we
do not expect to fail, but it does not hurt to be defensive.

Most can be fixed by converting the "break" to a "return 1"
(since we eval our tests inside a function for just this
purpose). A few of the loops are inside subshells, so we can
use just "exit 1" to break out of the subshell. And a few
can actually be made shorter by just unrolling the loop.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-25 10:25:27 -07:00

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#!/bin/sh
test_description='merge-recursive backend test'
. ./test-lib.sh
# A <- create some files
# / \
# B C <- cause rename/delete conflicts between B and C
# / \
# |\ /|
# | D E |
# | \ / |
# | X |
# | / \ |
# | / \ |
# |/ \|
# F G <- merge E into B, D into C
# \ /
# \ /
# \ /
# H <- recursive merge crashes
#
# initialize
test_expect_success 'setup repo with criss-cross history' '
mkdir data &&
# create a bunch of files
n=1 &&
while test $n -le 10
do
echo $n > data/$n &&
n=$(($n+1)) ||
return 1
done &&
# check them in
git add data &&
git commit -m A &&
git branch A &&
# a file in one branch
git checkout -b B A &&
git rm data/9 &&
git add data &&
git commit -m B &&
# with a branch off of it
git branch D &&
# put some commits on D
git checkout D &&
echo testD > data/testD &&
git add data &&
git commit -m D &&
# back up to the top, create another branch and cause
# a rename conflict with the file we deleted earlier
git checkout -b C A &&
git mv data/9 data/new-9 &&
git add data &&
git commit -m C &&
# with a branch off of it
git branch E &&
# put a commit on E
git checkout E &&
echo testE > data/testE &&
git add data &&
git commit -m E &&
# now, merge E into B
git checkout B &&
test_must_fail git merge E &&
# force-resolve
git add data &&
git commit -m F &&
git branch F &&
# and merge D into C
git checkout C &&
test_must_fail git merge D &&
# force-resolve
git add data &&
git commit -m G &&
git branch G
'
test_expect_success 'recursive merge between F and G, causes segfault' '
git merge F
'
test_done