Validate mapping exists when creating/updating a protocol

This patch validates that a mapping exists when adding or updating
a federation protocol.

Change-Id: I996f94d26eb0f2c679542ba13a03bbaa4442486a
Closes-Bug: #1571878
1 file changed
tree: f1d7f9be4005c388d5faab39a6fd368ff0e6599d
  1. keystone_tempest_plugin/