From bb1e9e0a829a073a00512a838ffa515eae2aa15d Mon Sep 17 00:00:00 2001
From: Arthur Baars <arthur@semmle.com>
Date: Wed, 6 Jan 2016 18:17:17 +0000
Subject: [PATCH] GCS Storagedriver: fix test failure caused by #1187

Signed-off-by: Arthur Baars <arthur@semmle.com>
---
 registry/storage/driver/gcs/gcs.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/registry/storage/driver/gcs/gcs.go b/registry/storage/driver/gcs/gcs.go
index 4cef972c..2b190dec 100644
--- a/registry/storage/driver/gcs/gcs.go
+++ b/registry/storage/driver/gcs/gcs.go
@@ -461,6 +461,11 @@ func (d *driver) List(context ctx.Context, path string) ([]string, error) {
 			break
 		}
 	}
+	if path != "/" && len(list) == 0 {
+		// Treat empty response as missing directory, since we don't actually
+		// have directories in Google Cloud Storage.
+		return nil, storagedriver.PathNotFoundError{Path: path}
+	}
 	return list, nil
 }