Unit-test retention config

services/retention/config.go

@@ -1,8 +1,10 @@
 package retention
 
-import "time"
+import (
+	"github.com/influxdb/influxdb/toml"
+)
 
 type Config struct {
-	Enabled       bool
-	CheckInterval time.Duration
+	Enabled       bool          `toml:"enabled"`
+	CheckInterval toml.Duration `toml:"check-interval"`
 }

services/retention/config_test.go

@@ -0,0 +1,27 @@
+package retention_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/BurntSushi/toml"
+	"github.com/influxdb/influxdb/services/retention"
+)
+
+func TestConfig_Parse(t *testing.T) {
+	// Parse configuration.
+	var c retention.Config
+	if _, err := toml.Decode(`
+enabled = true
+check-interval = "1s"
+`, &c); err != nil {
+		t.Fatal(err)
+	}
+
+	// Validate configuration.
+	if c.Enabled != true {
+		t.Fatalf("unexpected enabled state: %v", c.Enabled)
+	} else if time.Duration(c.CheckInterval) != time.Second {
+		t.Fatalf("unexpected check interval: %v", c.CheckInterval)
+	}
+}

services/retention/service.go

@@ -35,7 +35,7 @@ type Service struct {
 func NewService(c Config) *Service {
 	return &Service{
 		enabled:       c.Enabled,
-		checkInterval: c.CheckInterval,
+		checkInterval: time.Duration(c.CheckInterval),
 		done:          make(chan struct{}),
 		logger:        log.New(os.Stderr, "[retention] ", log.LstdFlags),
 	}