git/t/t4049-diff-stat-count.sh
Eric Sunshine cbe1d9d630 t4000-t4999: 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

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#!/bin/sh
# Copyright (c) 2011, Google Inc.
test_description='diff --stat-count'
. ./test-lib.sh
test_expect_success 'setup' '
>a &&
>b &&
>c &&
>d &&
git add a b c d &&
git commit -m initial
'
test_expect_success 'mode-only change show as a 0-line change' '
git reset --hard &&
test_chmod +x b d &&
echo a >a &&
echo c >c &&
cat >expect <<-\EOF &&
a | 1 +
b | 0
...
4 files changed, 2 insertions(+)
EOF
git diff --stat --stat-count=2 HEAD >actual &&
test_cmp expect actual
'
test_expect_success 'binary changes do not count in lines' '
git reset --hard &&
echo a >a &&
echo c >c &&
cat "$TEST_DIRECTORY"/test-binary-1.png >d &&
cat >expect <<-\EOF &&
a | 1 +
c | 1 +
...
3 files changed, 2 insertions(+)
EOF
git diff --stat --stat-count=2 >actual &&
test_cmp expect actual
'
test_expect_success 'exclude unmerged entries from total file count' '
git reset --hard &&
echo a >a &&
echo b >b &&
git ls-files -s a >x &&
git rm -f d &&
for stage in 1 2 3
do
sed -e "s/ 0 a/ $stage d/" x || return 1
done |
git update-index --index-info &&
echo d >d &&
cat >expect <<-\EOF &&
a | 1 +
b | 1 +
...
3 files changed, 3 insertions(+)
EOF
git diff --stat --stat-count=2 >actual &&
test_cmp expect actual
'
test_done