[1/1] t9001: avoid including non-trailing NUL bytes in variables
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Message ID 20191127190142.64271-2-sandals@crustytoothpaste.net
State New
Headers show
Series
  • Fix broken test with zsh as /bin/sh
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Commit Message

brian m. carlson Nov. 27, 2019, 7:01 p.m. UTC
In this test, we have a command substitution whose output starts with a
NUL byte.  bash and dash strip out any NUL bytes from the output; zsh
does not.  As a consequence, zsh fails this test, since the command line
argument we use the variable in is truncated by the NUL byte.

POSIX says of a command substitution that if "the output contains any
null bytes, the behavior is unspecified," so all of the shells are in
compliance with POSIX.  To make our code more portable, let's avoid
prefacing our variables with NUL bytes and instead leave only the
trailing one behind.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 t/t9001-send-email.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 997f90b42b..51be0b8cd6 100755
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -2066,7 +2066,7 @@  test_expect_success $PREREQ 'leading and trailing whitespaces are removed' '
 	TO1=$(echo "QTo 1 <to1@example.com>" | q_to_tab) &&
 	TO2=$(echo "QZto2" | qz_to_tab_space) &&
 	CC1=$(echo "cc1" | append_cr) &&
-	BCC1=$(echo "Q bcc1@example.com Q" | q_to_nul) &&
+	BCC1=$(echo " bcc1@example.com Q" | q_to_nul) &&
 	git send-email \
 	--dry-run \
 	--from="	Example <from@example.com>" \