From b1993dc24dbd72b24c5ff84193750f423272ae28 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Thu, 2 May 2013 15:36:30 -0700
Subject: [PATCH] Test that coreEnvironment can't encode/decode

---
 packer/environment_test.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/packer/environment_test.go b/packer/environment_test.go
index a842f1c4d..303bec327 100644
--- a/packer/environment_test.go
+++ b/packer/environment_test.go
@@ -3,6 +3,7 @@ package packer
 import (
 	"bytes"
 	"cgl.tideland.biz/asserts"
+	"encoding/gob"
 	"os"
 	"strings"
 	"testing"
@@ -23,6 +24,20 @@ func testEnvironment() Environment {
 	return env
 }
 
+// This is just a sanity test to prove that our coreEnvironment can't
+// encode or decode using gobs. That is fine, and expected, but I just like
+// to be sure.
+func TestEnvironment_CoreEnvironmentCantEncode(t *testing.T) {
+	assert := asserts.NewTestingAsserts(t, true)
+
+	env := testEnvironment()
+
+	b := new(bytes.Buffer)
+	e := gob.NewEncoder(b)
+	err := e.Encode(env)
+	assert.NotNil(err, "encoding should fail")
+}
+
 func TestEnvironment_DefaultConfig_Command(t *testing.T) {
 	assert := asserts.NewTestingAsserts(t, true)