From dbe5a1254ad6f10d9cd452c0c4c621a873228e87 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Thu, 10 Jul 2014 17:01:21 -0700
Subject: [PATCH] helper/resource: better error if config doesn't validate

---
 helper/resource/testing.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/helper/resource/testing.go b/helper/resource/testing.go
index cccdef20c..fc03d1cfb 100644
--- a/helper/resource/testing.go
+++ b/helper/resource/testing.go
@@ -185,9 +185,13 @@ func testStep(
 	opts.State = state
 	ctx := terraform.NewContext(&opts)
 	if ws, es := ctx.Validate(); len(ws) > 0 || len(es) > 0 {
+		estrs := make([]string, len(es))
+		for i, e := range es {
+			estrs[i] = e.Error()
+		}
 		return state, fmt.Errorf(
 			"Configuration is invalid.\n\nWarnings: %#v\n\nErrors: %#v",
-			ws, es)
+			ws, estrs)
 	}
 
 	// Refresh!