```ruby
require "generators/generators_test_helper"
require "rails/generators/rails/integration_test/integration_test_generator"

class IntegrationTestGeneratorTest < Rails::Generators::TestCase
  include GeneratorsTestHelper
  arguments %w(integration)

  def test_integration_test_skeleton_is_created
    run_generator
    assert_file "test/integration/integration_test.rb", /class IntegrationTest < ActionDispatch::IntegrationTest/
  end
end
```

Add test for generate namespaced integration test
user
```ruby
require "generators/generators_test_helper"
require "rails/generators/rails/integration_test/integration_test_generator"

class IntegrationTestGeneratorTest < Rails::Generators::TestCase
  include GeneratorsTestHelper

  def test_integration_test_skeleton_is_created
    run_generator %w(integration)
    assert_file "test/integration/integration_test.rb", /class IntegrationTest < ActionDispatch::IntegrationTest/
  end

  def test_namespaced_integration_test_skeleton_is_created
    run_generator %w(iguchi/integration)
    assert_file "test/integration/iguchi/integration_test.rb", /class Iguchi::IntegrationTest < ActionDispatch::IntegrationTest/
  end
end
```
assistant