Adds frozen string to the following: * spec/bin/**/*.rb * spec/config/**/*.rb * spec/controllers/**/*.rb xref https://gitlab.com/gitlab-org/gitlab-ce/issues/59758
Updates specs to use new rails5 format. The old format: `get :show, { some: params }, { some: headers }` The new format: `get :show, params: { some: params }, headers: { some: headers }`
Moves LDAP to its own controller with tests Provides path forward for implementing GroupSaml