test_case_test.rb

require 'abstract_unit'
require 'controller/fake_controllers'
require 'active_support/ordered_hash'

class TestCaseTest < ActionController::TestCase
  class TestController < ActionController::Base
    def no_op
      render :text => 'dummy'
    end

    def set_flash
      flash["test"] = ">#{flash["test"]}<"
      render :text => 'ignore me'
    end

    def set_flash_now
      flash.now["test_now"] = ">#{flash["test_now"]}<"
      render :text => 'ignore me'
    end

    def set_session
      session['string'] = 'A wonder'
      session[:symbol] = 'it works'
      render :text => 'Success'
    end

    def reset_the_session
      reset_session
      render :text => 'ignore me'
    end

    def render_raw_post
      raise ActiveSupport::TestCase::Assertion, "#raw_post is blank" if request.raw_post.blank?
      render :text => request.raw_post
    end

    def render_body
      render :text => request.body.read
    end

    def test_params
      render :text => params.inspect
    end

    def test_uri
      render :text => request.fullpath
    end

    def test_query_string
      render :text => request.query_string
    end

    def test_protocol
      render :text => request.protocol
    end

    def test_html_output
      render :text => <<HTML
<html>
  <body>
    <a href="/"><img src="/images/button.png" /></a>
    <div id="foo">
      <ul>
        <li class="item">hello</li>
        <li class="item">goodbye</li>
      </ul>
    </div>
    <div id="bar">
      <form action="/somewhere">
        Name: <input type="text" name="person[name]" id="person_name" />
      </form>
    </div>
  </body>
</html>
HTML
    end

    def test_xml_output
      response.content_type = "application/xml"
      render :text => <<XML
<?xml version="1.0" encoding="UTF-8"?>
<root>
  <area>area is an empty tag in HTML, raising an error if not in xml mode</area>
</root>
XML
    end

    def test_only_one_param
      render :text => (params[:left] && params[:right]) ? "EEP, Both here!" : "OK"
    end

    def test_remote_addr
      render :text => (request.remote_addr || "not specified")
    end

    def test_file_upload
      render :text => params[:file].size
    end

    def test_send_file
      send_file(File.expand_path(__FILE__))
    end

    def redirect_to_same_controller
      redirect_to :controller => 'test', :action => 'test_uri', :id => 5
    end

    def redirect_to_different_controller
      redirect_to :controller => 'fail', :id => 5
    end

    def create
      head :created, :location => 'created resource'
    end

    def delete_cookie
      cookies.delete("foo")
      render :nothing => true
    end

    def test_assigns
      @foo = "foo"
      render :nothing => true
    end

    private

      def generate_url(opts)
        url_for(opts.merge(:action => "test_uri"))
      end
  end

  def setup
    super
    @controller = TestController.new
    @request    = ActionController::TestRequest.new
    @response   = ActionController::TestResponse.new
    @request.env['PATH_INFO'] = nil
    @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
      r.draw do
        match ':controller(/:action(/:id))'
      end
    end
  end

  class ViewAssignsController < ActionController::Base
    def test_assigns
      @foo = "foo"
      render :nothing => true
    end

    def view_assigns
      { "bar" => "bar" }
    end
  end

  def test_raw_post_handling
    params = ActiveSupport::OrderedHash[:page, {:name => 'page name'}, 'some key', 123]
    post :render_raw_post, params.dup

    assert_equal params.to_query, @response.body
  end

  def test_body_stream
    params = ActiveSupport::OrderedHash[:page, { :name => 'page name' }, 'some key', 123]

    post :render_body, params.dup

    assert_equal params.to_query, @response.body
  end

  def test_document_body_and_params_with_post
    post :test_params, :id => 1
    assert_equal("{\"id\"=>\"1\", \"controller\"=>\"test_case_test/test\", \"action\"=>\"test_params\"}", @response.body)
  end

  def test_document_body_with_post
    post :render_body, "document body"
    assert_equal "document body", @response.body
  end

  def test_document_body_with_put
    put :render_body, "document body"
    assert_equal "document body", @response.body
  end

  def test_head
    head :test_params
    assert_equal 200, @response.status
  end

  def test_head_params_as_sting
    assert_raise(NoMethodError) { head :test_params, "document body", :id => 10 }
  end

  def test_process_without_flash
    process :set_flash
    assert_equal '><', flash['test']
  end

  def test_process_with_flash
    process :set_flash, "GET", nil, nil, { "test" => "value" }
    assert_equal '>value<', flash['test']
  end

  def test_process_with_flash_now
    process :set_flash_now, "GET", nil, nil, { "test_now" => "value_now" }
    assert_equal '>value_now<', flash['test_now']
  end

  def test_process_with_session
    process :set_session
    assert_equal 'A wonder', session['string'], "A value stored in the session should be available by string key"
    assert_equal 'A wonder', session[:string], "Test session hash should allow indifferent access"
    assert_equal 'it works', session['symbol'], "Test session hash should allow indifferent access"
    assert_equal 'it works', session[:symbol], "Test session hash should allow indifferent access"
  end

  def test_process_with_session_arg
    process :no_op, "GET", nil, { 'string' => 'value1', :symbol => 'value2' }
    assert_equal 'value1', session['string']
    assert_equal 'value1', session[:string]
    assert_equal 'value2', session['symbol']
    assert_equal 'value2', session[:symbol]
  end

  def test_session_is_cleared_from_controller_after_reset_session
    process :set_session
    process :reset_the_session
    assert_equal Hash.new, @controller.session.to_hash
  end

  def test_session_is_cleared_from_request_after_reset_session
    process :set_session
    process :reset_the_session
    assert_equal Hash.new, @request.session.to_hash
  end

  def test_response_and_request_have_nice_accessors
    process :no_op
    assert_equal @response, response
    assert_equal @request, request
  end

  def test_process_with_request_uri_with_no_params
    process :test_uri
    assert_equal "/test_case_test/test/test_uri", @response.body
  end

  def test_process_with_request_uri_with_params
    process :test_uri, "GET", :id => 7
    assert_equal "/test_case_test/test/test_uri/7", @response.body
  end

  def test_process_with_old_api
    assert_deprecated do
      process :test_uri, :id => 7
      assert_equal "/test_case_test/test/test_uri/7", @response.body
    end
  end

  def test_process_with_request_uri_with_params_with_explicit_uri
    @request.env['PATH_INFO'] = "/explicit/uri"
    process :test_uri, "GET", :id => 7
    assert_equal "/explicit/uri", @response.body
  end

  def test_process_with_query_string
    process :test_query_string, "GET", :q => 'test'
    assert_equal "q=test", @response.body
  end

  def test_process_with_query_string_with_explicit_uri
    @request.env['PATH_INFO'] = '/explicit/uri'
    @request.env['QUERY_STRING'] = 'q=test?extra=question'
    process :test_query_string
    assert_equal "q=test?extra=question", @response.body
  end

  def test_multiple_calls
    process :test_only_one_param, "GET", :left => true
    assert_equal "OK", @response.body
    process :test_only_one_param, "GET", :right => true
    assert_equal "OK", @response.body
  end

  def test_assigns
    process :test_assigns
    # assigns can be accessed using assigns(key)
    # or assigns[key], where key is a string or
    # a symbol
    assert_equal "foo", assigns(:foo)
    assert_equal "foo", assigns("foo")
    assert_equal "foo", assigns[:foo]
    assert_equal "foo", assigns["foo"]
  end

  def test_view_assigns
    @controller = ViewAssignsController.new
    process :test_assigns
    assert_equal nil, assigns(:foo)
    assert_equal nil, assigns[:foo]
    assert_equal "bar", assigns(:bar)
    assert_equal "bar", assigns[:bar]
  end

  def test_assert_tag_tag
    process :test_html_output

    # there is a 'form' tag
    assert_tag :tag => 'form'
    # there is not an 'hr' tag
    assert_no_tag :tag => 'hr'
  end

  def test_assert_tag_attributes
    process :test_html_output

    # there is a tag with an 'id' of 'bar'
    assert_tag :attributes => { :id => "bar" }
    # there is no tag with a 'name' of 'baz'
    assert_no_tag :attributes => { :name => "baz" }
  end

  def test_assert_tag_parent
    process :test_html_output

    # there is a tag with a parent 'form' tag
    assert_tag :parent => { :tag => "form" }
    # there is no tag with a parent of 'input'
    assert_no_tag :parent => { :tag => "input" }
  end

  def test_assert_tag_child
    process :test_html_output

    # there is a tag with a child 'input' tag
    assert_tag :child => { :tag => "input" }
    # there is no tag with a child 'strong' tag
    assert_no_tag :child => { :tag => "strong" }
  end

  def test_assert_tag_ancestor
    process :test_html_output

    # there is a 'li' tag with an ancestor having an id of 'foo'
    assert_tag :ancestor => { :attributes => { :id => "foo" } }, :tag => "li"
    # there is no tag of any kind with an ancestor having an href matching 'foo'
    assert_no_tag :ancestor => { :attributes => { :href => /foo/ } }
  end

  def test_assert_tag_descendant
    process :test_html_output

    # there is a tag with a descendant 'li' tag
    assert_tag :descendant => { :tag => "li" }
    # there is no tag with a descendant 'html' tag
    assert_no_tag :descendant => { :tag => "html" }
  end

  def test_assert_tag_sibling
    process :test_html_output

    # there is a tag with a sibling of class 'item'
    assert_tag :sibling => { :attributes => { :class => "item" } }
    # there is no tag with a sibling 'ul' tag
    assert_no_tag :sibling => { :tag => "ul" }
  end

  def test_assert_tag_after
    process :test_html_output

    # there is a tag following a sibling 'div' tag
    assert_tag :after => { :tag => "div" }
    # there is no tag following a sibling tag with id 'bar'
    assert_no_tag :after => { :attributes => { :id => "bar" } }
  end

  def test_assert_tag_before
    process :test_html_output

    # there is a tag preceding a tag with id 'bar'
    assert_tag :before => { :attributes => { :id => "bar" } }
    # there is no tag preceding a 'form' tag
    assert_no_tag :before => { :tag => "form" }
  end

  def test_assert_tag_children_count
    process :test_html_output

    # there is a tag with 2 children
    assert_tag :children => { :count => 2 }
    # in particular, there is a <ul> tag with two children (a nameless pair of <li>s)
    assert_tag :tag => 'ul', :children => { :count => 2 }
    # there is no tag with 4 children
    assert_no_tag :children => { :count => 4 }
  end

  def test_assert_tag_children_less_than
    process :test_html_output

    # there is a tag with less than 5 children
    assert_tag :children => { :less_than => 5 }
    # there is no 'ul' tag with less than 2 children
    assert_no_tag :children => { :less_than => 2 }, :tag => "ul"
  end

  def test_assert_tag_children_greater_than
    process :test_html_output

    # there is a 'body' tag with more than 1 children
    assert_tag :children => { :greater_than => 1 }, :tag => "body"
    # there is no tag with more than 10 children
    assert_no_tag :children => { :greater_than => 10 }
  end

  def test_assert_tag_children_only
    process :test_html_output

    # there is a tag containing only one child with an id of 'foo'
    assert_tag :children => { :count => 1,
                              :only => { :attributes => { :id => "foo" } } }
    # there is no tag containing only one 'li' child
    assert_no_tag :children => { :count => 1, :only => { :tag => "li" } }
  end

  def test_assert_tag_content
    process :test_html_output

    # the output contains the string "Name"
    assert_tag :content => /Name/
    # the output does not contain the string "test"
    assert_no_tag :content => /test/
  end

  def test_assert_tag_multiple
    process :test_html_output

    # there is a 'div', id='bar', with an immediate child whose 'action'
    # attribute matches the regexp /somewhere/.
    assert_tag :tag => "div", :attributes => { :id => "bar" },
               :child => { :attributes => { :action => /somewhere/ } }

    # there is no 'div', id='foo', with a 'ul' child with more than
    # 2 "li" children.
    assert_no_tag :tag => "div", :attributes => { :id => "foo" },
                  :child => {
                    :tag => "ul",
                    :children => { :greater_than => 2,
                                   :only => { :tag => "li" } } }
  end

  def test_assert_tag_children_without_content
    process :test_html_output

    # there is a form tag with an 'input' child which is a self closing tag
    assert_tag :tag => "form",
      :children => { :count => 1,
        :only => { :tag => "input" } }

    # the body tag has an 'a' child which in turn has an 'img' child
    assert_tag :tag => "body",
      :children => { :count => 1,
        :only => { :tag => "a",
          :children => { :count => 1,
            :only => { :tag => "img" } } } }
  end

  def test_should_not_impose_childless_html_tags_in_xml
    process :test_xml_output

    begin
      $stderr = StringIO.new
      assert_select 'area' #This will cause a warning if content is processed as HTML
      $stderr.rewind && err = $stderr.read
    ensure
      $stderr = STDERR
    end

    assert err.empty?
  end

  def test_assert_tag_attribute_matching
    @response.body = '<input type="text" name="my_name">'
    assert_tag :tag => 'input',
                 :attributes => { :name => /my/, :type => 'text' }
    assert_no_tag :tag => 'input',
                 :attributes => { :name => 'my', :type => 'text' }
    assert_no_tag :tag => 'input',
                 :attributes => { :name => /^my$/, :type => 'text' }
  end

  def test_assert_tag_content_matching
    @response.body = "<p>hello world</p>"
    assert_tag :tag => "p", :content => "hello world"
    assert_tag :tag => "p", :content => /hello/
    assert_no_tag :tag => "p", :content => "hello"
  end

  def test_assert_generates
    assert_generates 'controller/action/5', :controller => 'controller', :action => 'action', :id => '5'
    assert_generates 'controller/action/7', {:id => "7"}, {:controller => "controller", :action => "action"}
    assert_generates 'controller/action/5', {:controller => "controller", :action => "action", :id => "5", :name => "bob"}, {}, {:name => "bob"}
    assert_generates 'controller/action/7', {:id => "7", :name => "bob"}, {:controller => "controller", :action => "action"}, {:name => "bob"}
    assert_generates 'controller/action/7', {:id => "7"}, {:controller => "controller", :action => "action", :name => "bob"}, {}
  end

  def test_assert_routing
    assert_routing 'content', :controller => 'content', :action => 'index'
  end

  def test_assert_routing_with_method
    with_routing do |set|
      set.draw { resources(:content) }
      assert_routing({ :method => 'post', :path => 'content' }, { :controller => 'content', :action => 'create' })
    end
  end

  def test_assert_routing_in_module
    with_routing do |set|
      set.draw do
        namespace :admin do
          match 'user' => 'user#index'
        end
      end

      assert_routing 'admin/user', :controller => 'admin/user', :action => 'index'
    end
  end

  def test_assert_routing_with_glob
    with_routing do |set|
      set.draw { match('*path' => "pages#show") }
      assert_routing('/company/about', { :controller => 'pages', :action => 'show', :path => 'company/about' })
    end
  end

  def test_params_passing
    get :test_params, :page => {:name => "Page name", :month => '4', :year => '2004', :day => '6'}
    parsed_params = eval(@response.body)
    assert_equal(
      {'controller' => 'test_case_test/test', 'action' => 'test_params',
       'page' => {'name' => "Page name", 'month' => '4', 'year' => '2004', 'day' => '6'}},
      parsed_params
    )
  end

  def test_params_passing_with_fixnums
    get :test_params, :page => {:name => "Page name", :month => 4, :year => 2004, :day => 6}
    parsed_params = eval(@response.body)
    assert_equal(
      {'controller' => 'test_case_test/test', 'action' => 'test_params',
       'page' => {'name' => "Page name", 'month' => '4', 'year' => '2004', 'day' => '6'}},
      parsed_params
    )
  end

  def test_params_passing_with_frozen_values
    assert_nothing_raised do
      get :test_params, :frozen => 'icy'.freeze, :frozens => ['icy'.freeze].freeze
    end
    parsed_params = eval(@response.body)
    assert_equal(
      {'controller' => 'test_case_test/test', 'action' => 'test_params',
       'frozen' => 'icy', 'frozens' => ['icy']},
      parsed_params
    )
  end

  def test_params_passing_doesnt_modify_in_place
    page = {:name => "Page name", :month => 4, :year => 2004, :day => 6}
    get :test_params, :page => page
    assert_equal 2004, page[:year]
  end

  def test_id_converted_to_string
    get :test_params, :id => 20, :foo => Object.new
    assert_kind_of String, @request.path_parameters['id']
  end

  def test_array_path_parameter_handled_properly
    with_routing do |set|
      set.draw do
        match 'file/*path', :to => 'test_case_test/test#test_params'
        match ':controller/:action'
      end

      get :test_params, :path => ['hello', 'world']
      assert_equal ['hello', 'world'], @request.path_parameters['path']
      assert_equal 'hello/world', @request.path_parameters['path'].to_s
    end
  end

  def test_assert_realistic_path_parameters
    get :test_params, :id => 20, :foo => Object.new

    # All elements of path_parameters should use string keys
    @request.path_parameters.keys.each do |key|
      assert_kind_of String, key
    end
  end

  def test_with_routing_places_routes_back
    assert @routes
    routes_id = @routes.object_id

    begin
      with_routing { raise 'fail' }
      fail 'Should not be here.'
    rescue RuntimeError
    end

    assert @routes
    assert_equal routes_id, @routes.object_id
  end

  def test_remote_addr
    get :test_remote_addr
    assert_equal "0.0.0.0", @response.body

    @request.remote_addr = "192.0.0.1"
    get :test_remote_addr
    assert_equal "192.0.0.1", @response.body
  end

  def test_header_properly_reset_after_remote_http_request
    xhr :get, :test_params
    assert_nil @request.env['HTTP_X_REQUESTED_WITH']
  end

  def test_header_properly_reset_after_get_request
    get :test_params
    @request.recycle!
    assert_nil @request.instance_variable_get("@request_method")
  end

  def test_params_reset_after_post_request
    post :no_op, :foo => "bar"
    assert_equal "bar", @request.params[:foo]
    @request.recycle!
    post :no_op
    assert_blank @request.params[:foo]
  end

  def test_symbolized_path_params_reset_after_request
    get :test_params, :id => "foo"
    assert_equal "foo", @request.symbolized_path_parameters[:id]
    @request.recycle!
    get :test_params
    assert_nil @request.symbolized_path_parameters[:id]
  end

  def test_request_protocol_is_reset_after_request
    get :test_protocol
    assert_equal "http://", @response.body

    @request.env["HTTPS"] = "on"
    get :test_protocol
    assert_equal "https://", @response.body

    @request.env.delete("HTTPS")
    get :test_protocol
    assert_equal "http://", @response.body
  end

  def test_should_have_knowledge_of_client_side_cookie_state_even_if_they_are_not_set
    cookies['foo'] = 'bar'
    get :no_op
    assert_equal 'bar', cookies['foo']
  end

  def test_should_detect_if_cookie_is_deleted
    cookies['foo'] = 'bar'
    get :delete_cookie
    assert_nil cookies['foo']
  end

  %w(controller response request).each do |variable|
    %w(get post put delete head process).each do |method|
      define_method("test_#{variable}_missing_for_#{method}_raises_error") do
        remove_instance_variable "@#{variable}"
        begin
          send(method, :test_remote_addr)
          assert false, "expected RuntimeError, got nothing"
        rescue RuntimeError => error
          assert_match(%r{@#{variable} is nil}, error.message)
        rescue => error
          assert false, "expected RuntimeError, got #{error.class}"
        end
      end
    end
  end

  FILES_DIR = File.dirname(__FILE__) + '/../fixtures/multipart'

  READ_BINARY = 'rb:binary'
  READ_PLAIN = 'r:binary'

  def test_test_uploaded_file
    filename = 'mona_lisa.jpg'
    path = "#{FILES_DIR}/#{filename}"
    content_type = 'image/png'
    expected = File.read(path)
    expected.force_encoding(Encoding::BINARY)

    file = Rack::Test::UploadedFile.new(path, content_type)
    assert_equal filename, file.original_filename
    assert_equal content_type, file.content_type
    assert_equal file.path, file.local_path
    assert_equal expected, file.read

    new_content_type = "new content_type"
    file.content_type = new_content_type
    assert_equal new_content_type, file.content_type

  end

  def test_fixture_path_is_accessed_from_self_instead_of_active_support_test_case
    TestCaseTest.stubs(:fixture_path).returns(FILES_DIR)

    uploaded_file = fixture_file_upload('/mona_lisa.jpg', 'image/png')
    assert_equal File.open("#{FILES_DIR}/mona_lisa.jpg", READ_PLAIN).read, uploaded_file.read
  end

  def test_test_uploaded_file_with_binary
    filename = 'mona_lisa.jpg'
    path = "#{FILES_DIR}/#{filename}"
    content_type = 'image/png'

    binary_uploaded_file = Rack::Test::UploadedFile.new(path, content_type, :binary)
    assert_equal File.open(path, READ_BINARY).read, binary_uploaded_file.read

    plain_uploaded_file = Rack::Test::UploadedFile.new(path, content_type)
    assert_equal File.open(path, READ_PLAIN).read, plain_uploaded_file.read
  end

  def test_fixture_file_upload_with_binary
    filename = 'mona_lisa.jpg'
    path = "#{FILES_DIR}/#{filename}"
    content_type = 'image/jpg'

    binary_file_upload = fixture_file_upload(path, content_type, :binary)
    assert_equal File.open(path, READ_BINARY).read, binary_file_upload.read

    plain_file_upload = fixture_file_upload(path, content_type)
    assert_equal File.open(path, READ_PLAIN).read, plain_file_upload.read
  end

  def test_fixture_file_upload
    post :test_file_upload, :file => fixture_file_upload(FILES_DIR + "/mona_lisa.jpg", "image/jpg")
    assert_equal '159528', @response.body
  end

  def test_test_uploaded_file_exception_when_file_doesnt_exist
    assert_raise(RuntimeError) { Rack::Test::UploadedFile.new('non_existent_file') }
  end

  def test_redirect_url_only_cares_about_location_header
    get :create
    assert_response :created

    # Redirect url doesn't care that it wasn't a :redirect response.
    assert_equal 'created resource', @response.redirect_url
    assert_equal @response.redirect_url, redirect_to_url

    # Must be a :redirect response.
    assert_raise(ActiveSupport::TestCase::Assertion) do
      assert_redirected_to 'created resource'
    end
  end
end

class InferringClassNameTest < ActionController::TestCase
  def test_determine_controller_class
    assert_equal ContentController, determine_class("ContentControllerTest")
  end

  def test_determine_controller_class_with_nonsense_name
    assert_nil determine_class("HelloGoodBye")
  end

  def test_determine_controller_class_with_sensible_name_where_no_controller_exists
    assert_nil determine_class("NoControllerWithThisNameTest")
  end

  private
    def determine_class(name)
      ActionController::TestCase.determine_default_controller_class(name)
    end
end

class CrazyNameTest < ActionController::TestCase
  tests ContentController

  def test_controller_class_can_be_set_manually_not_just_inferred
    assert_equal ContentController, self.class.controller_class
  end
end

class CrazySymbolNameTest < ActionController::TestCase
  tests :content

  def test_set_controller_class_using_symbol
    assert_equal ContentController, self.class.controller_class
  end
end

class CrazyStringNameTest < ActionController::TestCase
  tests 'content'

  def test_set_controller_class_using_string
    assert_equal ContentController, self.class.controller_class
  end
end

class NamedRoutesControllerTest < ActionController::TestCase
  tests ContentController

  def test_should_be_able_to_use_named_routes_before_a_request_is_done
    with_routing do |set|
      set.draw { resources :contents }
      assert_equal 'http://test.host/contents/new', new_content_url
      assert_equal 'http://test.host/contents/1', content_url(:id => 1)
    end
  end
end