1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
require "capybara/dsl"
require "capybara/minitest"
require "action_controller"
require_relative "system_testing/driver"
require_relative "system_testing/server"
require_relative "system_testing/test_helpers/screenshot_helper"
require_relative "system_testing/test_helpers/setup_and_teardown"
require_relative "system_testing/test_helpers/undef_methods"
module ActionDispatch
# = System Testing
#
# System tests let you test applications in the browser. Because system
# tests use a real browser experience, you can test all of your JavaScript
# easily from your test suite.
#
# To create a system test in your application, extend your test class
# from <tt>ApplicationSystemTestCase</tt>. System tests use Capybara as a
# base and allow you to configure the settings through your
# <tt>application_system_test_case.rb</tt> file that is generated with a new
# application or scaffold.
#
# Here is an example system test:
#
# require 'application_system_test_case'
#
# class Users::CreateTest < ApplicationSystemTestCase
# test "adding a new user" do
# visit users_path
# click_on 'New User'
#
# fill_in 'Name', with: 'Arya'
# click_on 'Create User'
#
# assert_text 'Arya'
# end
# end
#
# When generating an application or scaffold, an +application_system_test_case.rb+
# file will also be generated containing the base class for system testing.
# This is where you can change the driver, add Capybara settings, and other
# configuration for your system tests.
#
# require "test_helper"
#
# class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
# driven_by :selenium, using: :chrome, screen_size: [1400, 1400]
# end
#
# By default, <tt>ActionDispatch::SystemTestCase</tt> is driven by the
# Selenium driver, with the Chrome browser, and a browser size of 1400x1400.
#
# Changing the driver configuration options is easy. Let's say you want to use
# the Firefox browser instead of Chrome. In your +application_system_test_case.rb+
# file add the following:
#
# require "test_helper"
#
# class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
# driven_by :selenium, using: :firefox
# end
#
# +driven_by+ has a required argument for the driver name. The keyword
# arguments are +:using+ for the browser and +:screen_size+ to change the
# size of the browser screen. These two options are not applicable for
# headless drivers and will be silently ignored if passed.
#
# To use a headless driver, like Poltergeist, update your Gemfile to use
# Poltergeist instead of Selenium and then declare the driver name in the
# +application_system_test_case.rb+ file. In this case, you would leave out
# the +:using+ option because the driver is headless, but you can still use
# +:screen_size+ to change the size of the browser screen, also you can use
# +:options+ to pass options supported by the driver. Please refer to your
# driver documentation to learn about supported options.
#
# require "test_helper"
# require "capybara/poltergeist"
#
# class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
# driven_by :poltergeist, screen_size: [1400, 1400], options:
# { js_errors: true }
# end
#
# Because <tt>ActionDispatch::SystemTestCase</tt> is a shim between Capybara
# and Rails, any driver that is supported by Capybara is supported by system
# tests as long as you include the required gems and files.
class SystemTestCase < IntegrationTest
include Capybara::DSL
include Capybara::Minitest::Assertions
include SystemTesting::TestHelpers::SetupAndTeardown
include SystemTesting::TestHelpers::ScreenshotHelper
include SystemTesting::TestHelpers::UndefMethods
def initialize(*) # :nodoc:
super
self.class.driver.use
end
def self.start_application # :nodoc:
Capybara.app = Rack::Builder.new do
map "/" do
run Rails.application
end
end
SystemTesting::Server.new.run
end
class_attribute :driver, instance_accessor: false
# System Test configuration options
#
# The default settings are Selenium, using Chrome, with a screen size
# of 1400x1400.
#
# Examples:
#
# driven_by :poltergeist
#
# driven_by :selenium, using: :firefox
#
# driven_by :selenium, screen_size: [800, 800]
def self.driven_by(driver, using: :chrome, screen_size: [1400, 1400], options: {})
self.driver = SystemTesting::Driver.new(driver, using: using, screen_size: screen_size, options: options)
end
driven_by :selenium
end
SystemTestCase.start_application
end
|
