From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Tue, 16 Apr 2024 21:19:13 +0200
Subject: Adding upstream version 1.21.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/os/exec/lp_unix_test.go | 50 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 src/os/exec/lp_unix_test.go

(limited to 'src/os/exec/lp_unix_test.go')

diff --git a/src/os/exec/lp_unix_test.go b/src/os/exec/lp_unix_test.go
new file mode 100644
index 0000000..181b1f0
--- /dev/null
+++ b/src/os/exec/lp_unix_test.go
@@ -0,0 +1,50 @@
+// 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.
+
+//go:build unix
+
+package exec
+
+import (
+	"os"
+	"testing"
+)
+
+func TestLookPathUnixEmptyPath(t *testing.T) {
+	// Not parallel: uses os.Chdir.
+
+	tmp, err := os.MkdirTemp("", "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)
+	}
+
+	t.Setenv("PATH", "")
+
+	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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