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require 'generators/generators_test_helper'
require 'rails/generators/rails/mailer/mailer_generator'

class MailerGeneratorTest < GeneratorsTestCase
  arguments %w(notifier foo bar)

  def test_mailer_skeleton_is_created
    run_generator
    assert_file "app/models/notifier.rb", /class Notifier < ActionMailer::Base/
  end

  def test_check_class_collision
    content = capture(:stderr){ run_generator ["object"] }
    assert_match /The name 'Object' is either already used in your application or reserved/, content
  end

  def test_invokes_default_test_framework
    run_generator
    assert_file "test/unit/notifier_test.rb", /class NotifierTest < ActionMailer::TestCase/
    assert_file "test/fixtures/notifier/foo", /app\/views\/notifier\/foo/
    assert_file "test/fixtures/notifier/bar", /app\/views\/notifier\/bar/
  end

  def test_invokes_default_template_engine
    run_generator
    assert_file "app/views/notifier/foo.erb", /app\/views\/notifier\/foo/
    assert_file "app/views/notifier/bar.erb", /app\/views\/notifier\/bar/
  end

  def test_invokes_default_template_engine_even_with_no_action
    run_generator ["notifier"]
    assert_file "app/views/notifier"
  end

  def test_logs_if_the_template_engine_cannot_be_found
    content = run_generator ["notifier", "foo", "bar", "--template-engine=haml"]
    assert_match /haml \[not found\]/, content
  end

  def test_actions_are_turned_into_methods
    run_generator
    assert_file "app/models/notifier.rb", /def foo/
    assert_file "app/models/notifier.rb", /def bar/
  end
end