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t4013: test "git diff-index -m"

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-m in "git diff-index" means "match missing", that differs
from its meaning in "git diff". Let's check it in diff-index.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sergey Organov 2021-05-21 00:46:58 +03:00 committed by Junio C Hamano
parent 3ae7fe2b0f
commit e0b16421b1
1 changed files with 13 additions and 0 deletions
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t/t4013-diff-various.sh
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@ -494,6 +494,19 @@ test_expect_success 'git config log.diffMerges first-parent vs -m' '
test_cmp expected actual
'
# -m in "git diff-index" means "match missing", that differs
# from its meaning in "git diff". Let's check it in diff-index.
# The line in the output for removed file should disappear when
# we provide -m in diff-index.
test_expect_success 'git diff-index -m' '
rm -f file1 &&
git diff-index HEAD >without-m &&
lines_count=$(wc -l <without-m) &&
git diff-index -m HEAD >with-m &&
git restore file1 &&
test_line_count = $((lines_count - 1)) with-m
'
test_expect_success 'log -S requires an argument' '
test_must_fail git log -S
'