The following is in the controller:
respond_to do |format|
format.csv { send_data as_csv, type:'text/csv' }
end
In spec:
click_link 'Download CSV'
page.driver.browser.switch_to.alert.accept
expect( page ).to have_content csv_data
But this doesn't work:
Failure/Error: page.driver.browser.switch_to.alert.accept
Selenium::WebDriver::Error::NoAlertPresentError: No alert is present
I see the Save File dialog box display, but apparently it is not an "alert" dialog.
How to click OK and get Capybara to see the data?
Adapted from CollectiveIdea and another source.
Works on OSX. Firefox 34.0.5
Spec:
describe 'Download CSV' do
let( :submission_email ){ 'foo@example.com' }
let( :email_csv ){ "id,email,created_at\n1,#{ submission_email }," }
specify do
visit '/emails'
expect( page ).to have_content 'Email Submissions'
click_on 'Download CSV'
expect( DownloadHelpers::download_content ).to include email_csv
end
end
Spec helper:
require 'shared/download_helper'
Capybara.register_driver :selenium do |app|
profile = Selenium::WebDriver::Firefox::Profile.new
profile['browser.download.dir'] = DownloadHelpers::PATH.to_s
profile['browser.download.folderList'] = 2
# Suppress "open with" dialog
profile['browser.helperApps.neverAsk.saveToDisk'] = 'text/csv'
Capybara::Selenium::Driver.new(app, :browser => :firefox, :profile => profile)
end
config.before( :each ) do
DownloadHelpers::clear_downloads
end
shared/download_helper.rb:
module DownloadHelpers
TIMEOUT = 1
PATH = Rails.root.join("tmp/downloads")
extend self
def downloads
Dir[PATH.join("*")]
end
def download
downloads.first
end
def download_content
wait_for_download
File.read(download)
end
def wait_for_download
Timeout.timeout(TIMEOUT) do
sleep 0.1 until downloaded?
end
end
def downloaded?
!downloading? && downloads.any?
end
def downloading?
downloads.grep(/\.part$/).any?
end
def clear_downloads
FileUtils.rm_f(downloads)
end
end
I found another way to do this, if you're using the rack_test
driver (no javascript/no browser):
DOWNLOAD_CACHE_PATH = Rails.root.join("tmp/downloaded_file").to_s
setup do
File.delete(DOWNLOAD_CACHE_PATH)
end
test "download file" do
visit download_file_path
# simulate file download
File.write(DOWNLOAD_CACHE_PATH, page.body)
csv = CSV.open(DOWNLOAD_CACHE_PATH)
# assert something on the csv data
end
I have tried to implement something similar and spend lots of hours. Finally I have some solution, maybe it fit for you as well.
Gemfile:
#source 'https://rubygems.org'
gem 'rails', '4.2.2'
gem 'bcrypt', '3.1.7'
gem 'bootstrap-sass', '3.2.0.0'
gem 'faker', '1.4.2'
gem 'carrierwave', '0.10.0'
gem 'mini_magick', '3.8.0'
gem 'fog', '1.36.0'
gem 'will_paginate', '3.0.7'
gem 'bootstrap-will_paginate', '0.0.10'
gem 'sass-rails', '5.0.2'
gem 'uglifier', '2.5.3'
gem 'coffee-rails', '4.1.0'
gem 'jquery-rails', '4.0.3'
gem 'turbolinks', '2.3.0'
gem 'jbuilder', '2.2.3'
gem 'sdoc', '0.4.0', group: :doc
gem 'rename'
gem 'sprockets', '3.6.3'
gem 'responders', '~> 2.0'
gem 'inherited_resources'
group :development, :test do
gem 'sqlite3', '1.3.9'
gem 'byebug', '3.4.0'
gem 'web-console', '2.0.0.beta3'
gem 'spring', '1.1.3'
end
group :test do
gem 'minitest-reporters', '1.0.5'
gem 'mini_backtrace', '0.1.3'
gem 'guard-minitest', '2.3.1'
gem 'capybara', '2.8.1'
gem 'rspec', '3.5.0'
gem 'rspec-rails', '~> 3.4'
gem 'cucumber-rails', :require => false
gem 'shoulda-matchers', '~> 3.0', require: false
gem 'database_cleaner'
gem 'factory_girl_rails', '~> 4.5.0'
end
spec/rails_helper.rb
ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../../config/environment', __FILE__)
abort("The Rails environment is running in production mode!") if Rails.env.production?
require 'spec_helper'
require 'rspec/rails'
require 'shoulda/matchers'
Shoulda::Matchers.configure do |config|
config.integrate do |with|
with.test_framework :rspec
with.library :rails
end
end
config.use_transactional_fixtures = false
ActiveRecord::Migration.maintain_test_schema!
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
spec/spec_helper.rb
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'capybara/rspec'
require 'capybara/rails'
require 'download_helper'
Capybara.register_driver :selenium do |app|
profile = Selenium::WebDriver::Firefox::Profile.new
profile['browser.download.dir'] = DownloadHelpers::PATH.to_s
profile['browser.download.folderList'] = 2
profile['browser.helperApps.neverAsk.saveToDisk'] = 'text/csv'
Capybara::Selenium::Driver.new(app, :browser => :firefox, :profile => profile)
end
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
config.include Capybara::DSL
=begin
config.filter_run_when_matching :focus
config.example_status_persistence_file_path = "spec/examples.txt"
config.disable_monkey_patching!
if config.files_to_run.one?
config.default_formatter = 'doc'
end
config.profile_examples = 10
config.order = :random
Kernel.srand config.seed
=end
end
test/test_helper.rb
ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../../config/environment', __FILE__)
require 'rails/test_help'
require 'capybara/rails'
class ActiveSupport::TestCase
# Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
fixtures :all
include ApplicationHelper
def is_logged_in?
!session[:user_id].nil?
end
# Logs in a test user.
def log_in_as(user, options = {})
password = options[:password] || 'password'
remember_me = options[:remember_me] || '1'
if integration_test?
post login_path, session: { email:user.email, password: password, remember_me: remember_me }
else
session[:user_id] = user.id
end
end
private
# Returns true inside an integration test.
def integration_test?
defined?(post_via_redirect)
end
end
class ActionDispatch::IntegrationTest
# Make the Capybara DSL available in all integration tests
include Capybara::DSL
# Reset sessions and driver between tests
# Use super wherever this method is redefined in your individual test classes
def teardown
Capybara.reset_sessions!
Capybara.use_default_driver
end
end
spec/download_helper.rb
module DownloadHelpers
TIMEOUT = 1
PATH = Rails.root.join("tmp/downloads")
extend self
def downloads
Dir[PATH.join("*")]
end
def download
downloads.first
end
def download_content
wait_for_download
File.read(download)
end
def wait_for_download
Timeout.timeout(TIMEOUT) do
sleep 0.1 until downloaded?
end
end
def downloaded?
!downloading? && downloads.any?
end
def downloading?
downloads.grep(/\.part$/).any?
end
def clear_downloads
FileUtils.rm_f(downloads)
end
end
spec/mpodels/spec.rb
describe 'Download file' do
specify do
visit '/createfile'
click_on 'create file'
page.response_headers['Content-Type'].should == "text/csv"
header = page.response_headers['Content-Disposition']
header.should match /^attachment/
header.should match /filename=\"temp.csv\"$/
end
end
根据浏览器的不同,您需要该浏览器的配置文件,我建议禁用要求在该配置文件中保存的属性。
@b-seven thanks a lot!
I made my own version of download_helper.rb maybe it will be useful for someone.
spec/support/helpers/download_helpers.rb
module DownloadHelpers
DOWNLOAD_DIR = 'tmp/capybara_downloads'
DOWNLOAD_PATH = ::Rails.root.join(DOWNLOAD_DIR)
def clear_downloads
FileUtils.rm_f(downloads)
end
def downloads
Dir[DOWNLOAD_PATH.join('*')]
end
def download_file(filename)
wait_for_download(filename)
File.read(::Rails.root.join(DOWNLOAD_DIR, filename))
end
def wait_for_download(filename)
Timeout.timeout(Capybara.default_max_wait_time,
Timeout::Error,
"File download timeout! File: #{filename}") do
sleep 0.1 until File.exist?(::Rails.root.join(DOWNLOAD_DIR, filename))
end
end
end
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.