Fix ArgumentError when loading newer Private Mentions (#25399)

spec/controllers/api/v1/conversations_controller_spec.rb

@@ -0,0 +1,74 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Api::V1::ConversationsController do
+  render_views
+
+  let!(:user) { Fabricate(:user, account_attributes: { username: 'alice' }) }
+  let(:token) { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
+  let(:other) { Fabricate(:user) }
+
+  before do
+    allow(controller).to receive(:doorkeeper_token) { token }
+  end
+
+  describe 'GET #index', :sidekiq_inline do
+    let(:scopes) { 'read:statuses' }
+
+    before do
+      PostStatusService.new.call(other.account, text: 'Hey @alice', visibility: 'direct')
+      PostStatusService.new.call(user.account, text: 'Hey, nobody here', visibility: 'direct')
+    end
+
+    it 'returns pagination headers', :aggregate_failures do
+      get :index, params: { limit: 1 }
+
+      expect(response).to have_http_status(200)
+      expect(response.headers['Link'].links.size).to eq(2)
+    end
+
+    it 'returns conversations', :aggregate_failures do
+      get :index
+      json = body_as_json
+      expect(json.size).to eq 2
+      expect(json[0][:accounts].size).to eq 1
+    end
+
+    context 'with since_id' do
+      context 'when requesting old posts' do
+        it 'returns conversations' do
+          get :index, params: { since_id: Mastodon::Snowflake.id_at(1.hour.ago, with_random: false) }
+          json = body_as_json
+          expect(json.size).to eq 2
+        end
+      end
+
+      context 'when requesting posts in the future' do
+        it 'returns no conversation' do
+          get :index, params: { since_id: Mastodon::Snowflake.id_at(1.hour.from_now, with_random: false) }
+          json = body_as_json
+          expect(json.size).to eq 0
+        end
+      end
+    end
+
+    context 'with since_id' do
+      context 'when requesting old posts' do
+        it 'returns conversations' do
+          get :index, params: { since_id: Mastodon::Snowflake.id_at(1.hour.ago, with_random: false) }
+          json = body_as_json
+          expect(json.size).to eq 1
+        end
+      end
+
+      context 'when requesting posts in the future' do
+        it 'returns no conversation' do
+          get :index, params: { since_id: Mastodon::Snowflake.id_at(1.hour.from_now, with_random: false) }
+          json = body_as_json
+          expect(json.size).to eq 0
+        end
+      end
+    end
+  end
+end