diff --git a/NEWS.md b/NEWS.md
index 1a31f1e23..31563045d 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -14,6 +14,7 @@ Unreleased
 * Introduce `suspenders:tasks` generator
 * Introduce `suspenders:db:migrate` task
 * Introduce `suspenders:email` generator
+* Introduce `suspenders:testing` generator
 
 20230113.0 (January, 13, 2023)
 
diff --git a/README.md b/README.md
index 0f1a43568..adf6305e9 100644
--- a/README.md
+++ b/README.md
@@ -173,6 +173,20 @@ Configures `default_url_options` in `test` and `development`.
 bin/rails g suspenders:email
 ```
 
+### Testing
+
+Set up the project for an in-depth test-driven development workflow.
+
+Installs and configures [rspec-rails][],
+[action_dispatch-testing-integration-capybara][], [shoulda-matchers][],
+[webdrivers][] and [webmock][].
+
+[rspec-rails]: https://github.com/rspec/rspec-rails
+[action_dispatch-testing-integration-capybara]: https://github.com/thoughtbot/action_dispatch-testing-integration-capybara
+[shoulda-matchers]: https://github.com/thoughtbot/shoulda-matchers
+[webdrivers]: https://github.com/titusfortner/webdrivers
+[webmock]: https://github.com/bblimke/webmock
+
 ## Contributing
 
 See the [CONTRIBUTING] document.
diff --git a/lib/generators/suspenders/testing_generator.rb b/lib/generators/suspenders/testing_generator.rb
new file mode 100644
index 000000000..73d7e909b
--- /dev/null
+++ b/lib/generators/suspenders/testing_generator.rb
@@ -0,0 +1,84 @@
+module Suspenders
+  module Generators
+    class TestingGenerator < Rails::Generators::Base
+      source_root File.expand_path("../../templates/testing", __FILE__)
+      desc "Set up the project for an in-depth test-driven development workflow."
+
+      def add_gems
+        gem_group :development, :test do
+          gem "rspec-rails", "~> 6.1.0"
+        end
+
+        gem_group :test do
+          gem "action_dispatch-testing-integration-capybara",
+            github: "thoughtbot/action_dispatch-testing-integration-capybara", tag: "v0.1.0",
+            require: "action_dispatch/testing/integration/capybara/rspec"
+          gem "shoulda-matchers", "~> 6.0"
+          gem "webdrivers"
+          gem "webmock"
+        end
+
+        Bundler.with_unbundled_env { run "bundle install" }
+      end
+
+      def run_rspec_installation_script
+        rails_command "generate rspec:install"
+      end
+
+      def modify_rails_helper
+        insert_into_file "spec/rails_helper.rb",
+          "\s\sconfig.infer_base_class_for_anonymous_controllers = false\n",
+          after: "RSpec.configure do |config|\n"
+      end
+
+      def modify_spec_helper
+        persistence_file_path = "\s\sconfig.example_status_persistence_file_path = \"tmp/rspec_examples.txt\"\n"
+        order = "\s\sconfig.order = :random\n\n"
+        webmock_config = <<~RUBY
+
+          WebMock.disable_net_connect!(
+            allow_localhost: true,
+            allow: [
+              /(chromedriver|storage).googleapis.com/,
+              "googlechromelabs.github.io",
+            ]
+          )
+        RUBY
+
+        insert_into_file "spec/spec_helper.rb",
+          persistence_file_path + order,
+          after: "RSpec.configure do |config|\n"
+
+        insert_into_file "spec/spec_helper.rb", "require \"webmock/rspec\"\n\n", before: "RSpec.configure do |config|"
+        insert_into_file "spec/spec_helper.rb", webmock_config
+      end
+
+      def create_system_spec_dir
+        empty_directory "spec/system"
+        create_file "spec/system/.gitkeep"
+      end
+
+      def configure_chromedriver
+        copy_file "chromedriver.rb", "spec/support/chromedriver.rb"
+      end
+
+      def configure_i18n_helper
+        copy_file "i18n.rb", "spec/support/i18n.rb"
+      end
+
+      def configure_shoulda_matchers
+        copy_file "shoulda_matchers.rb", "spec/support/shoulda_matchers.rb"
+      end
+
+      def configure_action_mailer_helpers
+        # https://guides.rubyonrails.org/testing.html#the-basic-test-case
+        #
+        # The ActionMailer::Base.deliveries array is only reset automatically in
+        # ActionMailer::TestCase and ActionDispatch::IntegrationTest tests. If
+        # you want to have a clean slate outside these test cases, you can reset
+        # it manually with: ActionMailer::Base.deliveries.clear
+        copy_file "action_mailer.rb", "spec/support/action_mailer.rb"
+      end
+    end
+  end
+end
diff --git a/lib/generators/templates/testing/action_mailer.rb b/lib/generators/templates/testing/action_mailer.rb
new file mode 100644
index 000000000..b9563a3bc
--- /dev/null
+++ b/lib/generators/templates/testing/action_mailer.rb
@@ -0,0 +1,5 @@
+RSpec.configure do |config|
+  config.before(:each) do
+    ActionMailer::Base.deliveries.clear
+  end
+end
diff --git a/lib/generators/templates/testing/chromedriver.rb b/lib/generators/templates/testing/chromedriver.rb
new file mode 100644
index 000000000..4091d1531
--- /dev/null
+++ b/lib/generators/templates/testing/chromedriver.rb
@@ -0,0 +1,27 @@
+require "selenium/webdriver"
+
+Capybara.register_driver :chrome do |app|
+  Capybara::Selenium::Driver.new(app, browser: :chrome)
+end
+
+Capybara.register_driver :headless_chrome do |app|
+  options = ::Selenium::WebDriver::Chrome::Options.new
+  options.headless!
+  options.add_argument "--window-size=1680,1050"
+
+  Capybara::Selenium::Driver.new app,
+    browser: :chrome,
+    options: options
+end
+
+Capybara.javascript_driver = :headless_chrome
+
+RSpec.configure do |config|
+  config.before(:each, type: :system) do
+    driven_by :rack_test
+  end
+
+  config.before(:each, type: :system, js: true) do
+    driven_by Capybara.javascript_driver
+  end
+end
diff --git a/lib/generators/templates/testing/i18n.rb b/lib/generators/templates/testing/i18n.rb
new file mode 100644
index 000000000..0c61ce662
--- /dev/null
+++ b/lib/generators/templates/testing/i18n.rb
@@ -0,0 +1,3 @@
+RSpec.configure do |config|
+  config.include ActionView::Helpers::TranslationHelper
+end
diff --git a/lib/generators/templates/testing/shoulda_matchers.rb b/lib/generators/templates/testing/shoulda_matchers.rb
new file mode 100644
index 000000000..7d045f359
--- /dev/null
+++ b/lib/generators/templates/testing/shoulda_matchers.rb
@@ -0,0 +1,6 @@
+Shoulda::Matchers.configure do |config|
+  config.integrate do |with|
+    with.test_framework :rspec
+    with.library :rails
+  end
+end
diff --git a/test/generators/suspenders/testing_generator_test.rb b/test/generators/suspenders/testing_generator_test.rb
new file mode 100644
index 000000000..ff901cd7e
--- /dev/null
+++ b/test/generators/suspenders/testing_generator_test.rb
@@ -0,0 +1,246 @@
+require "test_helper"
+require "generators/suspenders/testing_generator"
+
+module Suspenders
+  module Generators
+    class TestingGeneratorTest < Rails::Generators::TestCase
+      include Suspenders::TestHelpers
+
+      tests Suspenders::Generators::TestingGenerator
+      destination Rails.root
+      setup :prepare_destination
+      teardown :restore_destination
+
+      test "adds gems to Gemfile" do
+        expected = <<~RUBY
+          group :development, :test do
+            gem "rspec-rails", "~> 6.1.0"
+          end
+
+          group :test do
+            gem "action_dispatch-testing-integration-capybara", github: "thoughtbot/action_dispatch-testing-integration-capybara", tag: "v0.1.0", require: "action_dispatch/testing/integration/capybara/rspec"
+            gem "shoulda-matchers", "~> 6.0"
+            gem "webdrivers"
+            gem "webmock"
+          end
+        RUBY
+
+        run_generator
+
+        assert_file app_root("Gemfile") do |file|
+          assert_match(expected, file)
+        end
+      end
+
+      test "installs gems with Bundler" do
+        output = run_generator
+
+        assert_match(/bundle install/, output)
+      end
+
+      test "runs RSpec installation script" do
+        output = run_generator
+
+        assert_match(/generate rspec:install/, output)
+      end
+
+      test "configures rails_helper" do
+        touch "spec/rails_helper.rb", content: rails_helper
+
+        run_generator
+
+        assert_file "spec/rails_helper.rb" do |file|
+          assert_match(/RSpec\.configure do \|config\|\s{3}config\.infer_base_class_for_anonymous_controllers\s*=\s*false/m,
+            file)
+        end
+      end
+
+      test "configures spec_helper" do
+        touch "spec/spec_helper.rb", content: spec_helper
+        expected = <<~RUBY
+          require "webmock/rspec"
+
+          RSpec.configure do |config|
+            config.example_status_persistence_file_path = "tmp/rspec_examples.txt"
+            config.order = :random
+
+            config.expect_with :rspec do |expectations|
+              expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+            end
+
+            config.mock_with :rspec do |mocks|
+              mocks.verify_partial_doubles = true
+            end
+            config.shared_context_metadata_behavior = :apply_to_host_groups
+          end
+
+          WebMock.disable_net_connect!(
+            allow_localhost: true,
+            allow: [
+              /(chromedriver|storage).googleapis.com/,
+              "googlechromelabs.github.io",
+            ]
+          )
+        RUBY
+
+        run_generator
+
+        assert_file app_root("spec/spec_helper.rb") do |file|
+          assert_equal expected, file
+        end
+      end
+
+      test "configures Chromedriver" do
+        expected = <<~RUBY
+          require "selenium/webdriver"
+
+          Capybara.register_driver :chrome do |app|
+            Capybara::Selenium::Driver.new(app, browser: :chrome)
+          end
+
+          Capybara.register_driver :headless_chrome do |app|
+            options = ::Selenium::WebDriver::Chrome::Options.new
+            options.headless!
+            options.add_argument "--window-size=1680,1050"
+
+            Capybara::Selenium::Driver.new app,
+              browser: :chrome,
+              options: options
+          end
+
+          Capybara.javascript_driver = :headless_chrome
+
+          RSpec.configure do |config|
+            config.before(:each, type: :system) do
+              driven_by :rack_test
+            end
+
+            config.before(:each, type: :system, js: true) do
+              driven_by Capybara.javascript_driver
+            end
+          end
+        RUBY
+
+        run_generator
+
+        assert_file app_root("spec/support/chromedriver.rb") do |file|
+          assert_equal expected, file
+        end
+      end
+
+      test "creates system spec directory" do
+        run_generator
+
+        assert_file app_root("spec/system/.gitkeep")
+      end
+
+      test "configures Should Matchers" do
+        expected = <<~RUBY
+          Shoulda::Matchers.configure do |config|
+            config.integrate do |with|
+              with.test_framework :rspec
+              with.library :rails
+            end
+          end
+        RUBY
+
+        run_generator
+
+        assert_file app_root("spec/support/shoulda_matchers.rb") do |file|
+          assert_equal expected, file
+        end
+      end
+
+      test "configures i18n" do
+        expected = <<~RUBY
+          RSpec.configure do |config|
+            config.include ActionView::Helpers::TranslationHelper
+          end
+        RUBY
+
+        run_generator
+
+        assert_file app_root("spec/support/i18n.rb") do |file|
+          assert_equal expected, file
+        end
+      end
+
+      test "configures Action Mailer" do
+        expected = <<~RUBY
+          RSpec.configure do |config|
+            config.before(:each) do
+              ActionMailer::Base.deliveries.clear
+            end
+          end
+        RUBY
+
+        run_generator
+
+        assert_file app_root("spec/support/action_mailer.rb") do |file|
+          assert_equal expected, file
+        end
+      end
+
+      test "has custom description" do
+        assert_no_match(/Description/, generator_class.desc)
+      end
+
+      private
+
+      def prepare_destination
+        touch "Gemfile"
+        mkdir "spec"
+        touch "spec/rails_helper.rb"
+        touch "spec/spec_helper.rb"
+      end
+
+      def restore_destination
+        remove_file_if_exists "Gemfile"
+        remove_dir_if_exists "spec"
+      end
+
+      def rails_helper
+        # Generated from rails g rspec:install
+        # Comments removed
+        <<~RUBY
+          require 'spec_helper'
+          ENV['RAILS_ENV'] ||= 'test'
+          require_relative '../config/environment'
+
+          abort("The Rails environment is running in production mode!") if Rails.env.production?
+          require 'rspec/rails'
+
+          begin
+            ActiveRecord::Migration.maintain_test_schema!
+          rescue ActiveRecord::PendingMigrationError => e
+            abort e.to_s.strip
+          end
+          RSpec.configure do |config|
+            config.fixture_path = "#{::Rails.root}/spec/fixtures"
+            config.use_transactional_fixtures = true
+            config.infer_spec_type_from_file_location!
+            config.filter_rails_from_backtrace!
+          end
+          Dir[Rails.root.join("spec/support/**/*.rb")].sort.each { |file| require file }
+        RUBY
+      end
+
+      def spec_helper
+        # Generated from rails g rspec:install
+        # Comments removed
+        <<~RUBY
+          RSpec.configure do |config|
+            config.expect_with :rspec do |expectations|
+              expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+            end
+
+            config.mock_with :rspec do |mocks|
+              mocks.verify_partial_doubles = true
+            end
+            config.shared_context_metadata_behavior = :apply_to_host_groups
+          end
+        RUBY
+      end
+    end
+  end
+end