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git/t/t0013-sha1dc.sh
Jeff King f5f5e7f06c t0013: add a basic sha1 collision detection test
We don't actually have a Git-object collision, so the best
we can do is to run one of the shattered PDFs through
test-sha1. This should trigger the collision check and die.

In a sense this isn't really checking anything that the
upstream sha1collisiondetection project doesn't cover
already. But it at least makes sure that our build correctly
uses the library.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-17 10:40:25 -07:00

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#!/bin/sh
test_description='test sha1 collision detection'
. ./test-lib.sh
TEST_DATA="$TEST_DIRECTORY/t0013"
if test -z "$DC_SHA1"
then
skip_all='skipping sha1 collision tests, DC_SHA1 not set'
test_done
fi
test_expect_success 'test-sha1 detects shattered pdf' '
test_must_fail test-sha1 <"$TEST_DATA/shattered-1.pdf" 2>err &&
test_i18ngrep collision err &&
grep 38762cf7f55934b34d179ae6a4c80cadccbb7f0a err
'
test_done