Previously, we compared the ETag from Swift against the MD5 of the
entire large object. However, the ETag for large objects is generally
the MD5 of the concatenation of the ETags for each segment, unless the
object is a DLO whose segments span more than one page of a container
listing. Rather than worry about ETags, just compare each chunk of the
segmented file. This allows the use of --skip-identical when uploading
SLOs and DLOs.
Additionally, there are several test-related improvements:
* The default arguments for OutputManager are now evaluated on
construction, rather than on definition, so that
TestOutputManager.test_instantiation will succeed when using nosetest
as a test runner. (See also: bug 1251507)
* An account_username option is now available in the functional tests
config file for auth systems that do not follow the account:username
format.
* CaptureOutput no longer writes to the captured stream, and
MockHttpTest now captures output. These were polluting test output
unnecessarily. (See also: bug 1201376)
Change-Id: Ic484e9a0c186c9283c4012c6a2fa77b96b8edf8a
Closes-Bug: #1201376
Closes-Bug: #1379252
Related-Bug: #1251507