manifest test case should involve required fields

[xiekeyang]

This test case want to return failure only when invalid media type.
However, it lack the required fields, and will return failure whatever mediaType is.
So, it should be completed the accurate required fields, to make sure it to be our expectation.

Signed-off-by: xiekeyang xiekeyang@huawei.com

[wking]

On Sat, Nov 05, 2016 at 04:40:37AM -0700, xiekeyang wrote:

This test case want to return failure only when invalid media type.
However, it lack the required fields, and will return failure whatever mediaType is.
So, it should be completed the accurate required fields, to make sure the test aim.

fb409fd looks good to me.

Now it fails with:

mediaType: Does not match pattern '^[a-z]+/[0-9a-zA-Z.+]+$'

So a similar test with mediaType set to text/png would pass, although
the manifest would obviously still be invalid. The fix for that is
in #404.

[xiekeyang]

@stevvooe @vbatts This PR is what I think to be ready, and PTAL, thanks.

[philips]

LGTM

[jonboulle]

LGTM