From afebb5c336bebe4f41704ec995bb430d006f85e4 Mon Sep 17 00:00:00 2001
From: Dan Nicholson <nicholson@endlessm.com>
Date: Fri, 13 Oct 2017 19:52:04 -0500
Subject: [PATCH] tests: Run python tests with stdout unbuffered

Set the PYTHONUNBUFFERED environment variable during tests so that
python leaves stdout unbuffered. This is helpful when reading logs for
failures since the interleaved stdout and stderr will generally come out
in the right order. It's not perfect since tap-driver.sh does some
special redirection to the log file, but it's an improvement.

Closes: #1352
Approved by: dbnicholson
---
 Makefile-tests.am | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile-tests.am b/Makefile-tests.am
index 164717b1..6d0e0865 100644
--- a/Makefile-tests.am
+++ b/Makefile-tests.am
@@ -35,6 +35,7 @@ AM_TESTS_ENVIRONMENT += OT_TESTS_DEBUG=1 \
 	LD_LIBRARY_PATH=$$(cd $(top_builddir)/.libs && pwd)$${LD_LIBRARY_PATH:+:$${LD_LIBRARY_PATH}} \
 	PATH=$$(cd $(top_builddir)/tests && pwd):$${PATH} \
 	OSTREE_FEATURES="$(OSTREE_FEATURES)" \
+	PYTHONUNBUFFERED=1 \
 	$(NULL)
 if BUILDOPT_ASAN
 AM_TESTS_ENVIRONMENT += OT_SKIP_READDIR_RAND=1 G_SLICE=always-malloc