fusefrontend_reverse: return ENOENT for undecryptable names

This was working until DecryptName switched to returning
EBADMSG instead of EINVAL.

Add a test to catch the regression next time.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/reverse/correctness_test.go b/tests/reverse/correctness_test.go
index bfbab3d..a5719eb 100644
--- a/tests/reverse/correctness_test.go
+++ b/tests/reverse/correctness_test.go
@@ -130,3 +130,13 @@ func TestAccessVirtual(t *testing.T) {
 		t.Errorf("should NOT be executable")
 	}
 }
+
+// Opening a nonexistant file name should return ENOENT
+// and not EBADMSG or EIO or anything else.
+func TestEnoent(t *testing.T) {
+	fn := dirB + "/TestEnoent"
+	_, err := syscall.Open(fn, syscall.O_RDONLY, 0)
+	if err != syscall.ENOENT {
+		t.Errorf("want ENOENT, got: %v", err)
+	}
+}