require File.dirname(__FILE__) + '/test_helper'

# This test file is instead to test the how controller flow and actions
# using a belongs_to association. This is done using mocks a la rspec.
#
class Post
end

class Comment
  def self.human_name; 'Comment'; end
end

class CommentsController < InheritedResources::Base
  belongs_to :post
end

class BelongsToTest < TEST_CLASS

  def setup
    @controller          = CommentsController.new
    @controller.request  = @request  = ActionController::TestRequest.new
    @controller.response = @response = ActionController::TestResponse.new
  end

  def test_expose_all_comments_as_instance_variable_on_index
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:find).with(:all).returns([mock_comment])
    get :index, :post_id => '37'
    assert_equal mock_post, assigns(:post)
    assert_equal [mock_comment], assigns(:comments)
  end

  def test_expose_the_resquested_comment_on_show
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:find).with('42').returns(mock_comment)
    get :show, :id => '42', :post_id => '37'
    assert_equal mock_post, assigns(:post)
    assert_equal mock_comment, assigns(:comment)
  end

  def test_expose_a_new_comment_on_new
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:build).returns(mock_comment)
    get :new, :post_id => '37'
    assert_equal mock_post, assigns(:post)
    assert_equal mock_comment, assigns(:comment)
  end

  def test_expose_the_resquested_comment_on_edit
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:find).with('42').returns(mock_comment)
    get :edit, :id => '42', :post_id => '37'
    assert_equal mock_post, assigns(:post)
    assert_equal mock_comment, assigns(:comment)
  end

  def test_expose_a_newly_create_comment_on_create
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:build).with({'these' => 'params'}).returns(mock_comment(:save => true))
    post :create, :post_id => '37', :comment => {:these => 'params'}
    assert_equal mock_post, assigns(:post)
    assert_equal mock_comment, assigns(:comment)
  end

  def test_update_the_requested_object_on_update
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:find).with('42').returns(mock_comment)
    mock_comment.expects(:update_attributes).with({'these' => 'params'}).returns(true)
    put :update, :id => '42', :post_id => '37', :comment => {:these => 'params'}
    assert_equal mock_post, assigns(:post)
    assert_equal mock_comment, assigns(:comment)
  end

  def test_the_resquested_comment_is_destroyed_on_destroy
    Post.expects(:find).with('37').returns(mock_post)
    mock_post.expects(:comments).returns(Comment)
    Comment.expects(:find).with('42').returns(mock_comment)
    mock_comment.expects(:destroy)
    delete :destroy, :id => '42', :post_id => '37'
    assert_equal mock_post, assigns(:post)
    assert_equal mock_comment, assigns(:comment)
  end
  protected
    def mock_post(stubs={})
      @mock_post ||= mock(stubs)
    end

    def mock_comment(stubs={})
      @mock_comment ||= mock(stubs)
    end

end