You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: symlink_test.go
    path of file: ./repos/syncthing/test
    
    the code of the file until where you have to start completion: // Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Pu
    
func TestSymlinksSimpleVersioning(t *testing.T) {
	if !symlinksSupported() {
		t.Skip("symlinks unsupported")
	}

	// Use simple versioning
	id, _ := protocol.DeviceIDFromString(id2)
	cfg, _, _ := config.Load("h2/config.xml", id, events.NoopLogger)
	fld := cfg.Folders()["default"]
	fld.Versioning = config.VersioningConfiguration{
		Type:   "simple",
		Params: map[string]string{"keep": "5"},
	}
	cfg.SetFolder(fld)
	os.Rename("h2/config.xml", "h2/config.xml.orig")
	defer os.Rename("h2/config.xml.orig", "h2/config.xml")
	cfg.Save()

	testSymlinks(t)
}