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>

1 files changed, 0 insertions, 0 deletions

diff --git a/t/t0013/shattered-1.pdf b/t/t0013/shattered-1.pdf
new file mode 100644
index 0000000000..ba9aaa145c
--- /dev/null
+++ b/t/t0013/shattered-1.pdf