Making lib/backend/client.getFactory public

lib/backend/client.go

@@ -32,8 +32,9 @@ func Register(name string, factory ClientFactory) {
  _factories[name] = factory
 }
 
-// getFactory returns backend client factory given client name.
-func getFactory(name string) (ClientFactory, error) {
+// GetFactory returns backend client factory given client name.
+// This function should stay public to allow for wrapper custom backends.
+func GetFactory(name string) (ClientFactory, error) {
  factory, ok := _factories[name]
  if !ok {
  return nil, fmt.Errorf("no backend client defined with name %s", name)

lib/backend/client_test.go

@@ -0,0 +1,32 @@
+package backend
+
+import (
+ "testing"
+
+ "github.com/stretchr/testify/assert"
+)
+
+func TestRegisterAndGetFactory(t *testing.T) {
+ t.Run("round-trip", func(t *testing.T) {
+ name := "dummy"
+ factory := &dummyFactory{}
+
+ Register(name, factory)
+ roundTrip, err := GetFactory(name)
+
+ assert.NoError(t, err)
+ assert.Equal(t, factory, roundTrip)
+ })
+
+ t.Run("GetFactory errors out on missing factory", func(t *testing.T) {
+ _, err := GetFactory("i_dont_exist")
+
+ assert.Error(t, err)
+ })
+}
+
+type dummyFactory struct{}
+
+func (f *dummyFactory) Create(config interface{}, authConfig interface{}) (Client, error) {
+ return nil, nil
+}

lib/backend/manager.go

@@ -62,7 +62,7 @@ func NewManager(configs []Config, auth AuthConfig) (*Manager, error) {
  var backendConfig interface{}
  for name, backendConfig = range config.Backend { // Pull the only key/value out of map
  }
- factory, err := getFactory(name)
+ factory, err := GetFactory(name)
  if err != nil {
  return nil, fmt.Errorf("get backend client factory: %s", err)
  }