From 997cc95aa85e5f1eb31b38723ce2e69171929eb4 Mon Sep 17 00:00:00 2001
From: Bill Robbins <wrobbins@snaptrends.com>
Date: Fri, 6 Feb 2015 15:20:54 -0600
Subject: [PATCH] handle TMPDIR not existing for tests

---
 viper_test.go | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/viper_test.go b/viper_test.go
index 0bbe84f..1f4d684 100644
--- a/viper_test.go
+++ b/viper_test.go
@@ -14,6 +14,7 @@ import (
 	"time"
 	"os/exec"
 	"path"
+	"path/filepath"
 	"io/ioutil"
 
 	"github.com/spf13/pflag"
@@ -390,7 +391,7 @@ func TestFindAllConfigPaths(t *testing.T){
 		command.Run()
 	}
 
-	assert.Equal(t,expected,found,"All files should exist")
+	assert.Equal(t,expected,removeDuplicates(found),"All files should exist")
 }
 
 func generateCascadingTests(v2 *viper, file_name string) []string {
@@ -398,6 +399,9 @@ func generateCascadingTests(v2 *viper, file_name string) []string {
 	v2.SetConfigName(file_name)
 
 	tmp := os.Getenv("TMPDIR")
+	if( tmp == ""){
+		tmp,_ = filepath.Abs(filepath.Dir("./"))
+	}
 	// $TMPDIR/a > $TMPDIR/b > %TMPDIR
 	paths := []string{path.Join(tmp,"a"),path.Join(tmp,"b"),tmp}
 
@@ -443,3 +447,15 @@ func generateCascadingTests(v2 *viper, file_name string) []string {
 
 	return expected
 }
+
+func removeDuplicates(a []string) []string {
+	result := []string{}
+	seen := map[string]string{}
+	for _, val := range a {
+		if _, ok := seen[val]; !ok {
+			result = append(result, val)
+			seen[val] = val
+		}
+	}
+	return result
+}