From 48fbd60e335248edb43bc3e900dc0684090e0a1f Mon Sep 17 00:00:00 2001
From: Radek Simko <radek.simko@gmail.com>
Date: Mon, 30 Oct 2017 15:58:13 +0000
Subject: [PATCH] helper: Fall back to TF_LOG_PATH instead of os.Stderr

---
 helper/resource/testing.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/helper/resource/testing.go b/helper/resource/testing.go
index 9766ff57a..dce4e416e 100644
--- a/helper/resource/testing.go
+++ b/helper/resource/testing.go
@@ -372,6 +372,15 @@ func LogOutput(t TestT) (logOutput io.Writer, err error) {
 	}
 
 	logOutput = os.Stderr
+
+	if logPath := os.Getenv(logging.EnvLogFile); logPath != "" {
+		var err error
+		logOutput, err = os.OpenFile(logPath, syscall.O_CREAT|syscall.O_RDWR|syscall.O_APPEND, 0666)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	if logPathMask := os.Getenv(EnvLogPathMask); logPathMask != "" {
 		logPath := fmt.Sprintf(logPathMask, t.Name())
 		var err error