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-rwxr-xr-xt/t4020-diff-external.sh12
1 files changed, 12 insertions, 0 deletions
diff --git a/t/t4020-diff-external.sh b/t/t4020-diff-external.sh
index f0045cd788..ed3bd5b3fe 100755
--- a/t/t4020-diff-external.sh
+++ b/t/t4020-diff-external.sh
@@ -94,4 +94,16 @@ test_expect_success 'diff attribute should apply only to diff' '
'
+test_expect_success 'no diff with -diff' '
+ echo >.gitattributes "file -diff" &&
+ git diff | grep Binary
+'
+
+echo NULZbetweenZwords | tr Z '\0' > file
+
+test_expect_success 'force diff with "diff"' '
+ echo >.gitattributes "file diff" &&
+ git diff | grep -a second
+'
+
test_done