Microsoft Re-authorization flow (#6268)

spec/controllers/microsoft_controller_spec.rb

@@ -0,0 +1,13 @@
+require 'rails_helper'
+
+describe '/.well-known/microsoft-identity-association.json', type: :request do
+  describe 'GET /.well-known/microsoft-identity-association.json' do
+    it 'successfully retrieves assetlinks.json file' do
+      with_modified_env AZURE_APP_ID: 'azure-application-client-id' do
+        get '/.well-known/microsoft-identity-association.json'
+        expect(response).to have_http_status(:success)
+        expect(response.body).to include '"applicationId":  "azure-application-client-id"'
+      end
+    end
+  end
+end