protobuf-go/cmd/protoc-gen-go/testdata/registry_test.go
Joe Tsai 7198fb6edf cmd/protoc-gen-go/testdata: add registry test
This test verifies that the inialization logic does not accidentally
execute the lazy initialization logic that is intended to only evaluate
upon first use.

Change-Id: I5e9dea17ce88081c78195af0e86dd38223689f63
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/184259
Reviewed-by: Damien Neil <dneil@google.com>
2019-07-08 20:23:18 +00:00

28 lines
707 B
Go

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style.
// license that can be found in the LICENSE file.
package main
import (
"testing"
"google.golang.org/protobuf/internal/filedesc"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/reflect/protoregistry"
)
func TestRegistry(t *testing.T) {
var hasFiles bool
protoregistry.GlobalFiles.RangeFiles(func(fd protoreflect.FileDescriptor) bool {
if fd.(*filedesc.File).L2 != nil {
t.Errorf("file %q eagerly went through lazy initialization", fd.Path())
}
hasFiles = true
return true
})
if !hasFiles {
t.Errorf("protoregistry.GlobalFiles is empty")
}
}