internal/controld: add support for parsing client id from raw UID

internal/controld/config_test.go

@@ -1,34 +1,31 @@
-//go:build controld
-
 package controld
 
 import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
-func TestFetchResolverConfig(t *testing.T) {
+func Test_parseUID(t *testing.T) {
 	tests := []struct {
-		name    string
-		uid     string
-		dev     bool
-		wantErr bool
+		name         string
+		uid          string
+		wantUID      string
+		wantClientID string
 	}{
-		{"valid com", "p2", false, false},
-		{"valid dev", "p2", true, false},
-		{"invalid uid", "abcd1234", false, true},
+		{"empty", "", "", ""},
+		{"only uid", "abcd1234", "abcd1234", ""},
+		{"with client id", "abcd1234/clientID", "abcd1234", "clientID"},
+		{"with empty clientID", "abcd1234/", "abcd1234", ""},
 	}
+
 	for _, tc := range tests {
 		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
-			got, err := FetchResolverConfig(tc.uid, "dev-test", tc.dev)
-			require.False(t, (err != nil) != tc.wantErr, err)
-			if !tc.wantErr {
-				assert.NotEmpty(t, got.DOH)
-			}
+			gotUID, gotClientID := ParseRawUID(tc.uid)
+			assert.Equal(t, tc.wantUID, gotUID)
+			assert.Equal(t, tc.wantClientID, gotClientID)
 		})
 	}
 }