litmus is a WebDAV server test suite, which aims to test whether a
server is compliant with the WebDAV protocol as specified in RFC2518;
current tests cover:

litmus in action

* OPTIONS for DAV: header
* PUT, GET with byte comparison
* MKCOL
* DELETE (collections, non-collections)
* COPY, MOVE using combinations of:

* overwrite t/f
* destination exists/doesn't exist
* collection/non-collection

* Property manipulation and querying:

* set, delete, replace properties
* persist dead props across COPY
* namespace handling

* Locking

* attempts to modify locked resource (as lock owner, not owner)
* shared/exclusive locks
* lock discovery
* collection locking
* lock refresh

Note that a server which passes all these tests will not necessarily work
with any real DAV clients; though the chances are good. litmus is built
using the neon library, so supports digest and basic authentication,
TLS/SSL, and proxy servers.