This patch simplifies the test by;
- re-using the registry-mock / handler
- skipping the last `docker build`, which was only
used to make sure a local image was present. Instead,
the daemon is started with a `busybox` image loaded.
Also added a comment, explaining why the mock always
returns a 404 (hence, error/output-string should not
be checked in the test), and made the mock return a
valid/correctly formatted error response.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 5d04fe73bf9fa7cff1b99206f39536aed807efb3
Component: engine
01267bd230