key.size only correct after reading

[gataky]

When getting the size of a key that was just fetched from a bucket, the size reports 0 until, as far as I can tell, read the keys data then size will report correctly. Example below.

boto==2.14.0

    b = conn.get_bucket("mybucket")
    k = b.get_key("steve")

    assert k.size == 0
    k.get_contents_as_string()
    assert k.size == 10

[gataky]

Doing a little digging I see that when we're trying to get_key, we're using a HEAD which is what the boto docs say it does. But they're returning a key object and moto's returning "". Changing "" to key.value in moto/s3/responses.py line 167 appears to fix this problem. I ran the test's and they all passed after the change. Hope this helps.

[spulec]

This was closed with #54.