t4013: add "diff" UI program tests.

diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index f4f3c3a56d9b28e8e01f2f24959501b91b3561b5..1d2f7f9f7d6b914cdaa4ee2cecc3b5155924729e 100755 (executable)
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -227,6 +227,15 @@ format-patch --attach --stdout initial..side
 format-patch --attach --stdout initial..master^
 format-patch --attach --stdout initial..master
 
+diff --abbrev initial..side
+diff -r initial..side
+diff --stat initial..side
+diff -r --stat initial..side
+diff initial..side
+diff --patch-with-stat initial..side
+diff --patch-with-raw initial..side
+diff --patch-with-stat -r initial..side
+diff --patch-with-raw -r initial..side
 EOF
 
 test_done