string formatting style guide
remove unneeded test setup code
use new style string formatting
decorator and tests for at_least_one_parameter
decorator and tests for at_least_one_parameter
test get_users with conflicting parameters
split up test_get_roles, added more user tests
split up test_grant_roles
split up test_revoke_roles
pepped it up
added UserNotFoundError and GroupNotFoundError
added UserNotFoundError and GroupNotFoundError to group.py, split up some tests
styling
change name of at_least_one_parameter decorator to at_least_one_of
Merge branch 'master' of github.com:plone/plone.api
add at_least_one_of to content.py and update tests.
Correct exception message when at_least_one_of is violated
[ci skip] Correct irrelevant spelling error in a unit test's identifier.
add at_least_one_of to group.py and update tests.
add at_least_one_of to user API