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// Copyright 2013 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.
// +build darwin dragonfly freebsd linux netbsd openbsd
package exec
import (
"io/ioutil"
"os"
"testing"
)
func TestLookPathUnixEmptyPath(t *testing.T) {
tmp, err := ioutil.TempDir("", "TestLookPathUnixEmptyPath")
if err != nil {
t.Fatal("TempDir failed: ", err)
}
defer os.RemoveAll(tmp)
wd, err := os.Getwd()
if err != nil {
t.Fatal("Getwd failed: ", err)
}
err = os.Chdir(tmp)
if err != nil {
t.Fatal("Chdir failed: ", err)
}
defer os.Chdir(wd)
f, err := os.OpenFile("exec_me", os.O_CREATE|os.O_EXCL, 0700)
if err != nil {
t.Fatal("OpenFile failed: ", err)
}
err = f.Close()
if err != nil {
t.Fatal("Close failed: ", err)
}
pathenv := os.Getenv("PATH")
defer os.Setenv("PATH", pathenv)
err = os.Setenv("PATH", "")
if err != nil {
t.Fatal("Setenv failed: ", err)
}
path, err := LookPath("exec_me")
if err == nil {
t.Fatal("LookPath found exec_me in empty $PATH")
}
if path != "" {
t.Fatalf("LookPath path == %q when err != nil", path)
}
}
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