Migrate to request specs in `/api/v1/followed_tags` (#25472)

.rubocop_todo.yml

@@ -180,7 +180,6 @@ RSpec/LetSetup:
     - 'spec/controllers/api/v1/accounts/statuses_controller_spec.rb'
     - 'spec/controllers/api/v1/admin/accounts_controller_spec.rb'
     - 'spec/controllers/api/v1/filters_controller_spec.rb'
-    - 'spec/controllers/api/v1/followed_tags_controller_spec.rb'
     - 'spec/controllers/api/v2/admin/accounts_controller_spec.rb'
     - 'spec/controllers/api/v2/filters/keywords_controller_spec.rb'
     - 'spec/controllers/api/v2/filters/statuses_controller_spec.rb'

spec/controllers/api/v1/followed_tags_controller_spec.rb

@@ -1,25 +0,0 @@
-# frozen_string_literal: true
-
-require 'rails_helper'
-
-RSpec.describe Api::V1::FollowedTagsController do
-  render_views
-
-  let(:user)   { Fabricate(:user) }
-  let(:scopes) { 'read:follows' }
-  let(:token)  { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
-
-  before { allow(controller).to receive(:doorkeeper_token) { token } }
-
-  describe 'GET #index' do
-    let!(:tag_follows) { Fabricate.times(5, :tag_follow, account: user.account) }
-
-    before do
-      get :index, params: { limit: 1 }
-    end
-
-    it 'returns http success' do
-      expect(response).to have_http_status(:success)
-    end
-  end
-end

spec/requests/api/v1/followed_tags_spec.rb

@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Followed tags' do
+  let(:user)    { Fabricate(:user) }
+  let(:scopes)  { 'read:follows' }
+  let(:token)   { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
+  let(:headers) { { 'Authorization' => "Bearer #{token.token}" } }
+
+  describe 'GET /api/v1/followed_tags' do
+    subject do
+      get '/api/v1/followed_tags', headers: headers, params: params
+    end
+
+    let!(:tag_follows) { Fabricate.times(5, :tag_follow, account: user.account) }
+    let(:params)       { {} }
+
+    let(:expected_response) do
+      tag_follows.map do |tag_follow|
+        a_hash_including(name: tag_follow.tag.name, following: true)
+      end
+    end
+
+    before do
+      Fabricate(:tag_follow)
+    end
+
+    it_behaves_like 'forbidden for wrong scope', 'write write:follows'
+
+    it 'returns http success' do
+      subject
+
+      expect(response).to have_http_status(:success)
+    end
+
+    it 'returns the followed tags correctly' do
+      subject
+
+      expect(body_as_json).to match_array(expected_response)
+    end
+
+    context 'with limit param' do
+      let(:params) { { limit: 3 } }
+
+      it 'returns only the requested number of follow tags' do
+        subject
+
+        expect(body_as_json.size).to eq(params[:limit])
+      end
+
+      it 'sets the correct pagination header for the prev path' do
+        subject
+
+        expect(response.headers['Link'].find_link(%w(rel prev)).href).to eq(api_v1_followed_tags_url(limit: params[:limit], since_id: tag_follows.last.id))
+      end
+
+      it 'sets the correct pagination header for the next path' do
+        subject
+
+        expect(response.headers['Link'].find_link(%w(rel next)).href).to eq(api_v1_followed_tags_url(limit: params[:limit], max_id: tag_follows[2].id))
+      end
+    end
+  end
+end