Add ApplyEnvVars test to raft config

License: MIT
Signed-off-by: Robert Ignat <robert.ignat91@gmail.com>

consensus/raft/config_test.go

@@ -2,6 +2,7 @@ package raft
 
 import (
 	"encoding/json"
+	"os"
 	"testing"
 
 	hraft "github.com/hashicorp/raft"
@@ -106,3 +107,14 @@ func TestDefault(t *testing.T) {
 		t.Fatal("expected error validating")
 	}
 }
+
+func TestApplyEnvVars(t *testing.T) {
+	os.Setenv("CLUSTER_RAFT_COMMITRETRIES", "300")
+	cfg := &Config{}
+	cfg.Default()
+	cfg.ApplyEnvVars()
+
+	if cfg.CommitRetries != 300 {
+		t.Fatal("failed to override commit_retries with env var")
+	}
+}