hexdump: fix dup block comparison

function                                             old     new   delta
bb_dump_dump                                        1523    1520      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/testsuite/hexdump.tests b/testsuite/hexdump.tests
index 45a0c1300..cfb20187e 100755
--- a/testsuite/hexdump.tests
+++ b/testsuite/hexdump.tests
@@ -15,4 +15,23 @@ testing 'hexdump -C with four NULs' \
         '' \
         '\0\0\0\0'
 
+testing "hexdump does not think last padded block matches any full block" \
+        "hexdump -e '1/1 \"%02x|\"1/1 \"%02x!\\n\"'" \
+        "\
+00|00!
+*
+00|  !
+" \
+        '' \
+        '\0\0\0\0\0\0\0\0\0\0\0'
+
+testing "hexdump thinks last full block can match" \
+        "hexdump -e '1/1 \"%02x|\"1/1 \"%02x!\\n\"'" \
+        "\
+00|00!
+*
+" \
+        '' \
+        '\0\0\0\0\0\0\0\0\0\0\0\0'
+
 exit $FAILCOUNT