Fix: rand seeding error / Test: conf/version and util

pkg/conf/version_test.go

@@ -0,0 +1,27 @@
+package conf
+
+import (
+	"github.com/stretchr/testify/assert"
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func TestWriteVersionLock(t *testing.T) {
+	asserts := assert.New(t)
+
+	// 清理残余文件
+	if _, err := os.Stat("version.lock"); !os.IsNotExist(err) {
+		err = os.Remove("version.lock")
+		asserts.NoError(err)
+	}
+
+	err := WriteVersionLock()
+	defer func() { err = os.Remove("version.lock") }()
+	writtenVersion, err := ioutil.ReadFile("version.lock")
+
+	// 写入的版本应与当前版本相同
+	asserts.NoError(err)
+	asserts.Equal(string(writtenVersion), BackendVersion)
+
+}