From 3800dffdeb75b9f255be0bac6b37b3ce27c93bf4 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Mon, 18 Aug 2014 15:10:53 -0700
Subject: [PATCH] helper/schema: computed values should not be Get-able

---
 helper/schema/resource_data.go      |  2 +-
 helper/schema/resource_data_test.go | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/helper/schema/resource_data.go b/helper/schema/resource_data.go
index 0b75f16dc..d2f662884 100644
--- a/helper/schema/resource_data.go
+++ b/helper/schema/resource_data.go
@@ -273,7 +273,7 @@ func (d *ResourceData) getPrimitive(
 
 	if d.diff != nil && source >= getSourceDiff {
 		attrD, ok := d.diff.Attributes[k]
-		if ok {
+		if ok && !attrD.NewComputed {
 			result = attrD.New
 			resultSet = true
 		}
diff --git a/helper/schema/resource_data_test.go b/helper/schema/resource_data_test.go
index 0ec7832cb..a0698dd07 100644
--- a/helper/schema/resource_data_test.go
+++ b/helper/schema/resource_data_test.go
@@ -15,6 +15,33 @@ func TestResourceDataGet(t *testing.T) {
 		Key    string
 		Value  interface{}
 	}{
+		{
+			Schema: map[string]*Schema{
+				"availability_zone": &Schema{
+					Type:     TypeString,
+					Optional: true,
+					Computed: true,
+					ForceNew: true,
+				},
+			},
+
+			State: nil,
+
+			Diff: &terraform.ResourceDiff{
+				Attributes: map[string]*terraform.ResourceAttrDiff{
+					"availability_zone": &terraform.ResourceAttrDiff{
+						Old:         "",
+						New:         "",
+						NewComputed: true,
+					},
+				},
+			},
+
+			Key: "availability_zone",
+
+			Value: nil,
+		},
+
 		{
 			Schema: map[string]*Schema{
 				"availability_zone": &Schema{