lp_unix_test.go

Documentation: os/exec

		 1  // Copyright 2013 The Go Authors. All rights reserved.
		 2  // Use of this source code is governed by a BSD-style
		 3  // license that can be found in the LICENSE file.
		 4  
		 5  //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
		 6  // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
		 7  
		 8  package exec
		 9  
		10  import (
		11  	"os"
		12  	"testing"
		13  )
		14  
		15  func TestLookPathUnixEmptyPath(t *testing.T) {
		16  	tmp, err := os.MkdirTemp("", "TestLookPathUnixEmptyPath")
		17  	if err != nil {
		18  		t.Fatal("TempDir failed: ", err)
		19  	}
		20  	defer os.RemoveAll(tmp)
		21  	wd, err := os.Getwd()
		22  	if err != nil {
		23  		t.Fatal("Getwd failed: ", err)
		24  	}
		25  	err = os.Chdir(tmp)
		26  	if err != nil {
		27  		t.Fatal("Chdir failed: ", err)
		28  	}
		29  	defer os.Chdir(wd)
		30  
		31  	f, err := os.OpenFile("exec_me", os.O_CREATE|os.O_EXCL, 0700)
		32  	if err != nil {
		33  		t.Fatal("OpenFile failed: ", err)
		34  	}
		35  	err = f.Close()
		36  	if err != nil {
		37  		t.Fatal("Close failed: ", err)
		38  	}
		39  
		40  	t.Setenv("PATH", "")
		41  
		42  	path, err := LookPath("exec_me")
		43  	if err == nil {
		44  		t.Fatal("LookPath found exec_me in empty $PATH")
		45  	}
		46  	if path != "" {
		47  		t.Fatalf("LookPath path == %q when err != nil", path)
		48  	}
		49  }
		50
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