87aa6c8387
Fixes #28398 When used as path elements in google storage paths, the object names need to be URL encoded. Due to a.) tests not really using prefixes including non-url valid chars (i.e. / etc) and the mock server used for most testing not enforcing this particular aspect, this was missed. Modified unit tests to use prefixing for all names, so when run in real GS, any errors like this will show.