From 08580c3d5c094dc5f238a2a97e675a15509320b5 Mon Sep 17 00:00:00 2001
From: Robert Ignat <robert.ignat91@gmail.com>
Date: Mon, 18 Feb 2019 17:45:29 +0200
Subject: [PATCH] Add ApplyEnvVars test to disk config

License: MIT
Signed-off-by: Robert Ignat <robert.ignat91@gmail.com>
---
 informer/disk/config_test.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/informer/disk/config_test.go b/informer/disk/config_test.go
index eb660dbd..27aeb99b 100644
--- a/informer/disk/config_test.go
+++ b/informer/disk/config_test.go
@@ -2,7 +2,9 @@ package disk
 
 import (
 	"encoding/json"
+	"os"
 	"testing"
+	"time"
 )
 
 var cfgJSON = []byte(`
@@ -81,3 +83,13 @@ func TestDefault(t *testing.T) {
 		t.Fatal("MetricRepoSize is a valid type")
 	}
 }
+
+func TestApplyEnvVars(t *testing.T) {
+	os.Setenv("CLUSTER_DISK_METRICTTL", "22s")
+	cfg := &Config{}
+	cfg.ApplyEnvVars()
+
+	if cfg.MetricTTL != 22*time.Second {
+		t.Fatal("failed to override metric_ttl with env var")
+	}
+}