Mark existing Project Bot Users as confirmed

This change marks existing Project Bot Users
as confirmed.

changelogs/unreleased/migration-confirm-project-bot-users.yml

+---
+title: Mark existing Project Bot Users as confirmed
+merge_request: 36692
+author:
+type: fixed

db/post_migrate/20200713071042_confirm_project_bot_users.rb

+# frozen_string_literal: true
+
+class ConfirmProjectBotUsers < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class User < ApplicationRecord
+    self.table_name = 'users'
+
+    include ::EachBatch
+
+    USER_TYPE_PROJECT_BOT = 6
+
+    scope :project_bots, -> { where(user_type: USER_TYPE_PROJECT_BOT) }
+    scope :unconfirmed, -> { where(confirmed_at: nil) }
+  end
+
+  def up
+    User.reset_column_information
+
+    User.project_bots.unconfirmed.each_batch do |relation|
+      relation.update_all('confirmed_at = created_at')
+    end
+  end
+
+  def down
+    # no-op
+  end
+end

db/structure.sql

@@ -23772,5 +23772,6 @@ COPY "schema_migrations" (version) FROM STDIN;
 20200710102846
 20200710105332
 20200710130234
+20200713071042
 \.
 

spec/migrations/confirm_project_bot_users_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20200713071042_confirm_project_bot_users.rb')
+
+RSpec.describe ConfirmProjectBotUsers, :migration do
+  let(:users) { table(:users) }
+
+  context 'project bot users that are currently unconfirmed' do
+    let!(:project_bot_1) do
+      create_user!(
+        name: 'bot_1',
+        email: 'bot_1@example.com',
+        created_at: 2.days.ago,
+        user_type: described_class::User::USER_TYPE_PROJECT_BOT
+      )
+    end
+
+    let!(:project_bot_2) do
+      create_user!(
+        name: 'bot_2',
+        email: 'bot_2@example.com',
+        created_at: 4.days.ago,
+        user_type: described_class::User::USER_TYPE_PROJECT_BOT
+      )
+    end
+
+    it 'updates their `confirmed_at` attribute' do
+      expect { migrate! }
+        .to change { project_bot_1.reload.confirmed_at }
+        .and change { project_bot_2.reload.confirmed_at }
+    end
+
+    it 'sets `confirmed_at` to be the same as their `created_at` attribute' do
+      migrate!
+
+      [project_bot_1, project_bot_2].each do |bot|
+        expect(bot.reload.confirmed_at).to eq(bot.created_at)
+      end
+    end
+  end
+
+  context 'project bot users that are currently confirmed' do
+    let!(:confirmed_project_bot) do
+      create_user!(
+        name: 'bot_1',
+        email: 'bot_1@example.com',
+        user_type: described_class::User::USER_TYPE_PROJECT_BOT,
+        confirmed_at: 1.day.ago
+      )
+    end
+
+    it 'does not update their `confirmed_at` attribute' do
+      expect { migrate! }.not_to change { confirmed_project_bot.reload.confirmed_at }
+    end
+  end
+
+  context 'human users that are currently unconfirmed' do
+    let!(:unconfirmed_human) do
+      create_user!(
+        name: 'human',
+        email: 'human@example.com',
+        user_type: nil
+      )
+    end
+
+    it 'does not update their `confirmed_at` attribute' do
+      expect { migrate! }.not_to change { unconfirmed_human.reload.confirmed_at }
+    end
+  end
+
+  private
+
+  def create_user!(name:, email:, user_type:, created_at: Time.now, confirmed_at: nil)
+    users.create!(
+      name: name,
+      email: email,
+      username: name,
+      projects_limit: 0,
+      user_type: user_type,
+      confirmed_at: confirmed_at
+    )
+  end
+end