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-rwxr-xr-xt/t0021-conversion.sh9
1 files changed, 9 insertions, 0 deletions
diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index ad952c9ce..bab9ecc34 100755
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -4,8 +4,17 @@ test_description='blob conversion via gitattributes'
. ./test-lib.sh
+cat <<\EOF >rot13.sh
+tr '[a-zA-Z]' '[n-za-mN-ZA-M]'
+EOF
+chmod +x rot13.sh
+
test_expect_success setup '
+ git config filter.rot13.smudge ./rot13.sh &&
+ git config filter.rot13.clean ./rot13.sh &&
+
{
+ echo "*.t filter=rot13"
echo "*.i ident"
} >.gitattributes &&