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rails--rails/actionpack/test/controller/helper_test.rb

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# frozen_string_literal: true
require "abstract_unit"
ActionController::Base.helpers_path = File.expand_path("../fixtures/helpers", __dir__)
module Fun
class GamesController < ActionController::Base
def render_hello_world
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render inline: "hello: <%= stratego %>"
end
end
class PdfController < ActionController::Base
def test
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render inline: "test: <%= foobar %>"
end
end
end
class AllHelpersController < ActionController::Base
helper :all
end
module ImpressiveLibrary
extend ActiveSupport::Concern
included do
helper_method :useful_function
end
def useful_function() end
end
ActionController::Base.include(ImpressiveLibrary)
class JustMeController < ActionController::Base
clear_helpers
def flash
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render inline: "<h1><%= notice %></h1>"
end
def lib
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render inline: "<%= useful_function %>"
end
end
class MeTooController < JustMeController
end
class HelpersPathsController < ActionController::Base
paths = ["helpers2_pack", "helpers1_pack"].map do |path|
File.join(File.expand_path("../fixtures", __dir__), path)
end
$:.unshift(*paths)
self.helpers_path = paths
helper :all
def index
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render inline: "<%= conflicting_helper %>"
end
end
class HelpersTypoController < ActionController::Base
path = File.expand_path("../fixtures/helpers_typo", __dir__)
$:.unshift(path)
self.helpers_path = path
end
module LocalAbcHelper
def a() end
def b() end
def c() end
end
class HelperPathsTest < ActiveSupport::TestCase
def test_helpers_paths_priority
responses = HelpersPathsController.action(:index).call(ActionController::TestRequest::DEFAULT_ENV.dup)
# helpers1_pack was given as a second path, so pack1_helper should be
# included as the second one
assert_equal "pack1", responses.last.body
end
end
class HelpersTypoControllerTest < ActiveSupport::TestCase
def setup
@autoload_paths = ActiveSupport::Dependencies.autoload_paths
ActiveSupport::Dependencies.autoload_paths = Array(HelpersTypoController.helpers_path)
end
def test_helper_typo_error_message
e = assert_raise(NameError) { HelpersTypoController.helper "admin/users" }
assert_equal "Couldn't find Admin::UsersHelper, expected it to be defined in helpers/admin/users_helper.rb", e.message
end
def teardown
ActiveSupport::Dependencies.autoload_paths = @autoload_paths
end
end
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class HelperTest < ActiveSupport::TestCase
class TestController < ActionController::Base
attr_accessor :delegate_attr
def delegate_method() end
end
def setup
# Increment symbol counter.
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@symbol = (@@counter ||= "A0").succ.dup
# Generate new controller class.
controller_class_name = "Helper#{@symbol}Controller"
eval("class #{controller_class_name} < TestController; end")
@controller_class = self.class.const_get(controller_class_name)
# Set default test helper.
self.test_helper = LocalAbcHelper
end
def test_helper
assert_equal expected_helper_methods, missing_methods
assert_nothing_raised { @controller_class.helper TestHelper }
assert_equal [], missing_methods
end
def test_helper_method
assert_nothing_raised { @controller_class.helper_method :delegate_method }
assert_includes master_helper_methods, :delegate_method
end
def test_helper_attr
assert_nothing_raised { @controller_class.helper_attr :delegate_attr }
assert_includes master_helper_methods, :delegate_attr
assert_includes master_helper_methods, :delegate_attr=
end
def call_controller(klass, action)
klass.action(action).call(ActionController::TestRequest::DEFAULT_ENV.dup)
end
def test_helper_for_nested_controller
assert_equal "hello: Iz guuut!",
call_controller(Fun::GamesController, "render_hello_world").last.body
end
def test_helper_for_acronym_controller
assert_equal "test: baz", call_controller(Fun::PdfController, "test").last.body
end
def test_default_helpers_only
assert_equal [JustMeHelper], JustMeController._helpers.ancestors.reject(&:anonymous?)
assert_equal [MeTooHelper, JustMeHelper], MeTooController._helpers.ancestors.reject(&:anonymous?)
end
def test_base_helper_methods_after_clear_helpers
assert_nothing_raised do
call_controller(JustMeController, "flash")
end
end
def test_lib_helper_methods_after_clear_helpers
assert_nothing_raised do
call_controller(JustMeController, "lib")
end
end
def test_all_helpers
methods = AllHelpersController._helpers.instance_methods
# abc_helper.rb
assert_includes methods, :bare_a
# fun/games_helper.rb
assert_includes methods, :stratego
# fun/pdf_helper.rb
assert_includes methods, :foobar
end
def test_all_helpers_with_alternate_helper_dir
@controller_class.helpers_path = File.expand_path("../fixtures/alternate_helpers", __dir__)
# Reload helpers
@controller_class._helpers = Module.new
@controller_class.helper :all
# helpers/abc_helper.rb should not be included
assert_not_includes master_helper_methods, :bare_a
# alternate_helpers/foo_helper.rb
assert_includes master_helper_methods, :baz
end
def test_helper_proxy
methods = AllHelpersController.helpers.methods
# Action View
assert_includes methods, :pluralize
# abc_helper.rb
assert_includes methods, :bare_a
# fun/games_helper.rb
assert_includes methods, :stratego
# fun/pdf_helper.rb
assert_includes methods, :foobar
end
def test_helper_proxy_in_instance
methods = AllHelpersController.new.helpers.methods
# Action View
assert_includes methods, :pluralize
# abc_helper.rb
assert_includes methods, :bare_a
# fun/games_helper.rb
assert_includes methods, :stratego
# fun/pdf_helper.rb
assert_includes methods, :foobar
end
def test_helper_proxy_config
AllHelpersController.config.my_var = "smth"
assert_equal "smth", AllHelpersController.helpers.config.my_var
end
private
def expected_helper_methods
TestHelper.instance_methods
end
def master_helper_methods
@controller_class._helpers.instance_methods
end
def missing_methods
expected_helper_methods - master_helper_methods
end
def test_helper=(helper_module)
silence_warnings { self.class.const_set("TestHelper", helper_module) }
end
end
class IsolatedHelpersTest < ActionController::TestCase
class A < ActionController::Base
def index
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render inline: "<%= shout %>"
end
end
class B < A
helper { def shout; "B" end }
def index
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render inline: "<%= shout %>"
end
end
class C < A
helper { def shout; "C" end }
def index
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render inline: "<%= shout %>"
end
end
def call_controller(klass, action)
klass.action(action).call(@request.env)
end
def setup
super
@request.action = "index"
end
def test_helper_in_a
assert_raise(ActionView::Template::Error) { call_controller(A, "index") }
end
def test_helper_in_b
assert_equal "B", call_controller(B, "index").last.body
end
def test_helper_in_c
assert_equal "C", call_controller(C, "index").last.body
end
end