t4253-am-keep-cr-dos: avoid using pipes

The exit code of the upstream in a pipe is ignored thus we should avoid
using it. By writing out the output of the git command to a file, we can
test the exit codes of both the commands.

Signed-off-by: Boxuan Li <liboxuan@connect.hku.hk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t4253-am-keep-cr-dos.sh b/t/t4253-am-keep-cr-dos.sh
index 553fe3e88e0d90bde62ec4f257bd0648f917f0b5..6e1b73ec3afcfff62ebe628cc673b236bc74e63d 100755 (executable)
--- a/t/t4253-am-keep-cr-dos.sh
+++ b/t/t4253-am-keep-cr-dos.sh
@@ -51,14 +51,16 @@ test_expect_success 'am with dos files without --keep-cr' '
 
 test_expect_success 'am with dos files with --keep-cr' '
        git checkout -b dosfiles-keep-cr initial &&
-       git format-patch -k --stdout initial..master | git am --keep-cr -k -3 &&
+       git format-patch -k --stdout initial..master >output &&
+       git am --keep-cr -k -3 output &&
        git diff --exit-code master
 '
 
 test_expect_success 'am with dos files config am.keepcr' '
        git config am.keepcr 1 &&
        git checkout -b dosfiles-conf-keepcr initial &&
-       git format-patch -k --stdout initial..master | git am -k -3 &&
+       git format-patch -k --stdout initial..master >output &&
+       git am -k -3 output &&
        git diff --exit-code master
 '