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#!/bin/sh
test_description='see how we handle various forms of corruption'
. ./test-lib.sh
# convert "1234abcd" to ".git/objects/12/34abcd"
obj_to_file() {
echo "$(git rev-parse --git-dir)/objects/$(git rev-parse "$1" | sed 's,..,&/,')"
}
# Convert byte at offset "$2" of object "$1" into '\0'
corrupt_byte() {
obj_file=$(obj_to_file "$1") &&
chmod +w "$obj_file" &&
printf '\0' | dd of="$obj_file" bs=1 seek="$2" conv=notrunc
}
test_expect_success 'setup corrupt repo' '
git init bit-error &&
(
cd bit-error &&
test_commit content &&
corrupt_byte HEAD:content.t 10
)
'
test_expect_success 'streaming a corrupt blob fails' '
(
cd bit-error &&
test_must_fail git cat-file blob HEAD:content.t
)
'
test_done
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