From: Julien Desfossez <jdesfossez@efficios.com>
Date: Thu, 21 Dec 2017 20:28:56 +0000 (-0500)
Subject: Fix validate_trace_empty test check
X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=commitdiff_plain;h=ef2117d4b988197f140083fafd95c84ff2c3f23f

Fix validate_trace_empty test check

Since the output of babeltrace was directly piped into wc, the return
code was never an error even if the trace was invalid. We now split the
commands in two parts: process the trace with babeltrace and check the
error code, and then count the number of lines.

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/tests/utils/utils.sh b/tests/utils/utils.sh
index 9db0640b7..89aca4640 100644
--- a/tests/utils/utils.sh
+++ b/tests/utils/utils.sh
@@ -1401,7 +1401,14 @@ function validate_trace_empty()
 	    skip 0 "Babeltrace binary not found. Skipping trace validation"
 	fi
 
-	traced=$($BABELTRACE_BIN $trace_path 2>/dev/null | wc -l)
+	events=$($BABELTRACE_BIN $trace_path 2>/dev/null)
+	ret=$?
+	if [ $ret -ne 0 ]; then
+		fail "Failed to parse trace"
+		return $ret
+	fi
+
+	traced=$(echo -n "$events" | wc -l)
 	if [ "$traced" -eq 0 ]; then
 		pass "Validate empty trace"
 	else