xxd: fix printing of trailing spaces
function old new delta
bb_dump_dump 1497 1523 +26
xxd_main 459 466 +7
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 33/0) Total: 33 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/testsuite/xxd.tests b/testsuite/xxd.tests
new file mode 100755
index 0000000..2e80be5
--- /dev/null
+++ b/testsuite/xxd.tests
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# Copyright 2020 by Denys Vlasenko <vda.linux@googlemail.com>
+# Licensed under GPLv2, see file LICENSE in this source tree.
+
+. ./testing.sh
+
+# testing "description" "command" "result" "infile" "stdin"
+testing 'xxd -p with one NUL' \
+ 'xxd -p' \
+ "\
+00
+" \
+ '' \
+ '\0'
+
+testing 'xxd -p with 30 NULs' \
+ 'xxd -p' \
+ "\
+000000000000000000000000000000000000000000000000000000000000
+" \
+ '' \
+ '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0'
+
+testing 'xxd -p with 31 NULs' \
+ 'xxd -p' \
+ "\
+000000000000000000000000000000000000000000000000000000000000
+00
+" \
+ '' \
+ '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0'
+
+exit $FAILCOUNT