discourse/spec/services/user_authenticator_spec.rb

require 'rails_helper'
require_dependency 'user_authenticator'

def github_auth(email_valid)
  {
    email: "user53@discourse.org",
    username: "joedoe546",
    email_valid: email_valid,
    omit_username: nil,
    name: "Joe Doe 546",
    authenticator_name: "github",
    extra_data: {
      github_user_id: "100",
      github_screen_name: "joedoe546"
    },
    skip_email_validation: false
  }
end

describe UserAuthenticator do
  context "#finish" do
    let(:authenticator) { Auth::GithubAuthenticator.new }
    let(:group) { Fabricate(:group, automatic_membership_email_domains: "discourse.org") }

    before do
      SiteSetting.enable_github_logins = true
    end

    it "confirms email and adds the user to appropraite groups based on email" do
      user = Fabricate(:user, email: "user53@discourse.org")
      expect(group.usernames).not_to include(user.username)

      authentication = github_auth(true)

      UserAuthenticator.new(user, authentication: authentication).finish
      expect(user.email_confirmed?).to be_truthy
      expect(group.usernames).to include(user.username)
    end

    it "doesn't confirm email if email is invalid" do
      user = Fabricate(:user, email: "user53@discourse.org")

      authentication = github_auth(false)

      UserAuthenticator.new(user, authentication: authentication).finish
      expect(user.email_confirmed?).to be_falsey
      expect(group.usernames).not_to include(user.username)
    end

    it "doesn't confirm email if it was changed" do
      user = Fabricate(:user, email: "changed@discourse.org")

      authentication = github_auth(true)

      UserAuthenticator.new(user, authentication: authentication).finish
      expect(user.email_confirmed?).to be_falsey
      expect(group.usernames).not_to include(user.username)
    end
  end
end