From dc21cd357258df775e67a36cbcd70fc5f83543ad Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher <jakobunt@gmail.com>
Date: Sat, 25 Jan 2020 16:54:57 +0100
Subject: [PATCH] tests: cli: add TestSymlinkedCipherdir

https://github.com/rfjakob/gocryptfs/issues/450
---
 tests/cli/cli_test.go | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/tests/cli/cli_test.go b/tests/cli/cli_test.go
index 423afdf..3e1bf42 100644
--- a/tests/cli/cli_test.go
+++ b/tests/cli/cli_test.go
@@ -609,3 +609,38 @@ func TestNotIdle(t *testing.T) {
 	// All good.
 	test_helpers.UnmountPanic(mnt)
 }
+
+// TestSymlinkedCipherdir checks that if CIPHERDIR itself is a symlink, it is
+// followed.
+// https://github.com/rfjakob/gocryptfs/issues/450
+func TestSymlinkedCipherdir(t *testing.T) {
+	dir := test_helpers.InitFS(t)
+	dirSymlink := dir + ".symlink"
+	err := os.Symlink(dir, dirSymlink)
+	if err != nil {
+		t.Fatal(err)
+	}
+	mnt := dir + ".mnt"
+	test_helpers.MountOrFatal(t, dirSymlink, mnt, "-extpass=echo test")
+	defer test_helpers.UnmountPanic(mnt)
+
+	file := mnt + "/file"
+	f, err := os.Create(file)
+	if err != nil {
+		t.Fatal(err)
+	}
+	f.Close()
+
+	f, err = os.Open(mnt)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+	names, err := f.Readdirnames(0)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(names) != 1 || names[0] != "file" {
+		t.Errorf("wrong Readdirnames result: %v", names)
+	}
+}