git/t/t7602-merge-octopus-many.sh
Eric Sunshine 0c51d6b4ae t6000-t9999: detect and signal failure within loop
Failures within `for` and `while` loops can go unnoticed if not detected
and signaled manually since the loop itself does not abort when a
contained command fails, nor will a failure necessarily be detected when
the loop finishes since the loop returns the exit code of the last
command it ran on the final iteration, which may not be the command
which failed. Therefore, detect and signal failures manually within
loops using the idiom `|| return 1` (or `|| exit 1` within subshells).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13 10:29:48 -08:00

107 lines
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Executable file

#!/bin/sh
test_description='git merge
Testing octopus merge with more than 25 refs.'
. ./test-lib.sh
test_expect_success 'setup' '
echo c0 > c0.c &&
git add c0.c &&
git commit -m c0 &&
git tag c0 &&
i=1 &&
while test $i -le 30
do
git reset --hard c0 &&
echo c$i > c$i.c &&
git add c$i.c &&
git commit -m c$i &&
git tag c$i &&
i=$(expr $i + 1) || return 1
done
'
test_expect_success 'merge c1 with c2, c3, c4, ... c29' '
git reset --hard c1 &&
i=2 &&
refs="" &&
while test $i -le 30
do
refs="$refs c$i" &&
i=$(expr $i + 1) || return 1
done &&
git merge $refs &&
test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
i=1 &&
while test $i -le 30
do
test "$(git rev-parse c$i)" = "$(git rev-parse HEAD^$i)" &&
i=$(expr $i + 1) || return 1
done &&
git diff --exit-code &&
i=1 &&
while test $i -le 30
do
test -f c$i.c &&
i=$(expr $i + 1) || return 1
done
'
cat >expected <<\EOF
Trying simple merge with c2
Trying simple merge with c3
Trying simple merge with c4
Merge made by the 'octopus' strategy.
c2.c | 1 +
c3.c | 1 +
c4.c | 1 +
3 files changed, 3 insertions(+)
create mode 100644 c2.c
create mode 100644 c3.c
create mode 100644 c4.c
EOF
test_expect_success 'merge output uses pretty names' '
git reset --hard c1 &&
git merge c2 c3 c4 >actual &&
test_cmp expected actual
'
cat >expected <<\EOF
Merge made by the 'recursive' strategy.
c5.c | 1 +
1 file changed, 1 insertion(+)
create mode 100644 c5.c
EOF
test_expect_success 'merge reduces irrelevant remote heads' '
if test "$GIT_TEST_MERGE_ALGORITHM" = ort
then
mv expected expected.tmp &&
sed s/recursive/ort/ expected.tmp >expected &&
rm expected.tmp
fi &&
GIT_MERGE_VERBOSITY=0 git merge c4 c5 >actual &&
test_cmp expected actual
'
cat >expected <<\EOF
Fast-forwarding to: c1
Trying simple merge with c2
Merge made by the 'octopus' strategy.
c1.c | 1 +
c2.c | 1 +
2 files changed, 2 insertions(+)
create mode 100644 c1.c
create mode 100644 c2.c
EOF
test_expect_success 'merge fast-forward output uses pretty names' '
git reset --hard c0 &&
git merge c1 c2 >actual &&
test_cmp expected actual
'
test_done