1/*
2 * Copyright 2017 gRPC authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17
18// Package testdata contains functionality to find data files in tests.
19package testdata
20
21import (
22	"path/filepath"
23	"runtime"
24)
25
26// basepath is the root directory of this package.
27var basepath string
28
29func init() {
30	_, currentFile, _, _ := runtime.Caller(0)
31	basepath = filepath.Dir(currentFile)
32}
33
34// Path returns the absolute path the given relative file or directory path,
35// relative to the google.golang.org/grpc/testdata directory in the user's GOPATH.
36// If rel is already absolute, it is returned unmodified.
37func Path(rel string) string {
38	if filepath.IsAbs(rel) {
39		return rel
40	}
41
42	return filepath.Join(basepath, rel)
43}
44