Add tests for remote_unfollows_controller (#7879)

spec/controllers/remote_unfollows_controller_spec.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe RemoteUnfollowsController do
+  render_views
+
+  describe '#create' do
+    subject { post :create, params: { acct: acct } }
+
+    let(:current_user) { Fabricate(:user, account: current_account) }
+    let(:current_account) { Fabricate(:account) }
+    let(:remote_account) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox')).account }
+    before do
+      sign_in current_user
+      current_account.follow!(remote_account)
+      stub_request(:post, 'http://example.com/inbox'){ { status: 200 } }
+    end
+
+    context 'when successfully unfollow remote account' do
+      let(:acct) {"acct:#{ remote_account.username }@#{ remote_account.domain }"}
+
+      it do
+        is_expected.to render_template :success
+        expect(current_account.following?(remote_account)).to be false
+      end
+    end
+
+    context 'when fails to unfollow remote account' do
+      let(:acct) {"acct:#{ remote_account.username + '_test' }@#{ remote_account.domain }"}
+
+      it do
+        is_expected.to render_template :error
+        expect(current_account.following?(remote_account)).to be true
+      end
+    end
+  end
+end