Setup active storage subscriber tests

sentry-rails/examples/rails-6.0/app/controllers/posts_controller.rb

@@ -10,6 +10,12 @@ def index
   # GET /posts/1
   # GET /posts/1.json
   def show
+    @post.cover.attach(
+      io: File.open(File.join(Rails.root, 'public', 'favicon.ico')),
+      filename: 'favicon.ico',
+      identify: false
+    )
+    @post
   end
 
   # GET /posts/new

sentry-rails/spec/sentry/rails/tracing/active_storage_subscriber_spec.rb

@@ -0,0 +1,49 @@
+require "spec_helper"
+
+RSpec.describe Sentry::Rails::Tracing::ActiveStorageSubscriber, :subscriber, type: :request do
+  let(:transport) do
+    Sentry.get_current_client.transport
+  end
+
+  context "when transaction is sampled" do
+    before do
+      make_basic_app do |config|
+        config.traces_sample_rate = 1.0
+        config.rails.tracing_subscribers = [described_class]
+      end
+    end
+
+    it "records the upload event" do
+      p = Post.create!
+      get "/posts/#{p.id}/attach"
+
+      expect(response).to have_http_status(:ok)
+      expect(transport.events.count).to eq(1)
+
+      transaction = transport.events.first.to_hash
+      expect(transaction[:type]).to eq("transaction")
+      expect(transaction[:spans].count).to eq(1)
+
+      span = transaction[:spans][0]
+      expect(span[:op]).to eq("service_upload.active_storage")
+      expect(span[:description]).to eq("Disk")
+      expect(span.dig(:data, :key)).to eq(p.cover.key)
+      expect(span[:trace_id]).to eq(transaction.dig(:contexts, :trace, :trace_id))
+    end
+  end
+
+  context "when transaction is not sampled" do
+    before do
+      make_basic_app
+    end
+
+    it "doesn't record spans" do
+      p = Post.create!
+      get "/posts/#{p.id}/attach"
+
+      expect(response).to have_http_status(:ok)
+
+      expect(transport.events.count).to eq(0)
+    end
+  end
+end

sentry-rails/spec/support/test_rails_app/app.rb

@@ -1,7 +1,11 @@
+ENV["RAILS_ENV"] = "test"
+
 require 'rails'
 require "active_record"
+require "active_storage/engine"
 require "action_view/railtie"
 require "action_controller/railtie"
+
 # require "action_mailer/railtie"
 # require "action_cable/engine"
 # require "sprockets/railtie"
@@ -18,6 +22,34 @@ class TestApp < Rails::Application
 ActiveRecord::Base.logger = Logger.new(nil)
 
 ActiveRecord::Schema.define do
+  create_table "active_storage_attachments", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "record_type", null: false
+    t.integer "record_id", null: false
+    t.integer "blob_id", null: false
+    t.datetime "created_at", null: false
+    t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
+    t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
+  end
+
+  create_table "active_storage_blobs", force: :cascade do |t|
+    t.string "key", null: false
+    t.string "filename", null: false
+    t.string "content_type"
+    t.text "metadata"
+    t.string "service_name", null: false
+    t.bigint "byte_size", null: false
+    t.string "checksum", null: false
+    t.datetime "created_at", null: false
+    t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
+  end
+
+  create_table "active_storage_variant_records", force: :cascade do |t|
+    t.integer "blob_id", null: false
+    t.string "variation_digest", null: false
+    t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
+  end
+
   create_table :posts, force: true do |t|
   end
 
@@ -26,11 +58,20 @@ class TestApp < Rails::Application
   end
 end
 
-class Post < ActiveRecord::Base
+class ApplicationRecord < ActiveRecord::Base
+  self.abstract_class = true
+
+  include ActiveStorage::Attached::Model
+  include ActiveStorage::Reflection::ActiveRecordExtensions
+  ActiveRecord::Reflection.singleton_class.prepend(ActiveStorage::Reflection::ReflectionExtension)
+end
+
+class Post < ApplicationRecord
   has_many :comments
+  has_one_attached :cover
 end
 
-class Comment < ActiveRecord::Base
+class Comment < ApplicationRecord
   belongs_to :post
 end
 
@@ -45,6 +86,17 @@ def show
 
     render plain: p.id
   end
+
+  def attach
+    p = Post.find(params[:id])
+
+    p.cover.attach(
+      io: File.open(File.join(Rails.root, 'public', 'sentry-logo.png')),
+      filename: 'sentry-logo.png',
+      service_name: "test"
+    )
+
+    render plain: p.id end
 end
 
 class HelloController < ActionController::Base
@@ -111,7 +163,11 @@ def self.name
     get "/not_found", :to => "hello#not_found"
     get "/world", to: "hello#world"
     get "/with_custom_instrumentation", to: "hello#with_custom_instrumentation"
-    resources :posts, only: [:index, :show]
+    resources :posts, only: [:index, :show] do
+      member do
+        get :attach
+      end
+    end
     get "500", to: "hello#reporting"
     root :to => "hello#world"
   end
@@ -132,6 +188,9 @@ def self.name
 
   app.initialize!
 
+  Post.all.to_a # to run the sqlte version query first
+  Sentry.get_current_scope.clear_breadcrumbs # and then clear breadcrumbs in case the above query is recorded
+
   Rails.application = app
   app
 end

sentry-rails/spec/support/test_rails_app/config/database.yml

@@ -0,0 +1,6 @@
+default: &default
+  adapter: sqlite3
+
+test:
+  <<: *default
+  database: db

sentry-rails/spec/support/test_rails_app/config/storage.yml

@@ -0,0 +1,4 @@
+test:
+  service: Disk
+  root: <%= Rails.root.join("tmp/storage") %>
+