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# frozen_string_literal: true
require "abstract_unit"
module AbstractController
module Testing
class ControllerWithCallbacks < AbstractController::Base
include AbstractController::Callbacks
end
class Callback1 < ControllerWithCallbacks
set_callback :process_action, :before, :first
def first
@text = "Hello world"
end
def index
self.response_body = @text
end
end
class TestCallbacks1 < ActiveSupport::TestCase
test "basic callbacks work" do
controller = Callback1.new
controller.process(:index)
assert_equal "Hello world", controller.response_body
end
end
class Callback2 < ControllerWithCallbacks
before_action :first
after_action :second
around_action :aroundz
def first
@text = "Hello world"
end
def second
@second = "Goodbye"
end
def aroundz
@aroundz = "FIRST"
yield
@aroundz += "SECOND"
end
def index
@text ||= nil
self.response_body = @text.to_s
end
end
class Callback2Overwrite < Callback2
before_action :first, except: :index
end
class TestCallbacks2 < ActiveSupport::TestCase
def setup
@controller = Callback2.new
end
test "before_action works" do
@controller.process(:index)
assert_equal "Hello world", @controller.response_body
end
test "after_action works" do
@controller.process(:index)
assert_equal "Goodbye", @controller.instance_variable_get("@second")
end
test "around_action works" do
@controller.process(:index)
assert_equal "FIRSTSECOND", @controller.instance_variable_get("@aroundz")
end
test "before_action with overwritten condition" do
@controller = Callback2Overwrite.new
@controller.process(:index)
assert_equal "", @controller.response_body
end
end
class Callback3 < ControllerWithCallbacks
before_action do |c|
c.instance_variable_set("@text", "Hello world")
end
after_action do |c|
c.instance_variable_set("@second", "Goodbye")
end
def index
self.response_body = @text
end
end
class TestCallbacks3 < ActiveSupport::TestCase
def setup
@controller = Callback3.new
end
test "before_action works with procs" do
@controller.process(:index)
assert_equal "Hello world", @controller.response_body
end
test "after_action works with procs" do
@controller.process(:index)
assert_equal "Goodbye", @controller.instance_variable_get("@second")
end
end
class CallbacksWithConditions < ControllerWithCallbacks
before_action :list, only: :index
before_action :authenticate, except: :index
def index
self.response_body = @list.join(", ")
end
def sekrit_data
self.response_body = (@list + [@authenticated]).join(", ")
end
private
def list
@list = ["Hello", "World"]
end
def authenticate
@list ||= []
@authenticated = "true"
end
end
class TestCallbacksWithConditions < ActiveSupport::TestCase
def setup
@controller = CallbacksWithConditions.new
end
test "when :only is specified, a before action is triggered on that action" do
@controller.process(:index)
assert_equal "Hello, World", @controller.response_body
end
test "when :only is specified, a before action is not triggered on other actions" do
@controller.process(:sekrit_data)
assert_equal "true", @controller.response_body
end
test "when :except is specified, an after action is not triggered on that action" do
@controller.process(:index)
assert_not @controller.instance_variable_defined?("@authenticated")
end
end
class CallbacksWithArrayConditions < ControllerWithCallbacks
before_action :list, only: [:index, :listy]
before_action :authenticate, except: [:index, :listy]
def index
self.response_body = @list.join(", ")
end
def sekrit_data
self.response_body = (@list + [@authenticated]).join(", ")
end
private
def list
@list = ["Hello", "World"]
end
def authenticate
@list = []
@authenticated = "true"
end
end
class TestCallbacksWithArrayConditions < ActiveSupport::TestCase
def setup
@controller = CallbacksWithArrayConditions.new
end
test "when :only is specified with an array, a before action is triggered on that action" do
@controller.process(:index)
assert_equal "Hello, World", @controller.response_body
end
test "when :only is specified with an array, a before action is not triggered on other actions" do
@controller.process(:sekrit_data)
assert_equal "true", @controller.response_body
end
test "when :except is specified with an array, an after action is not triggered on that action" do
@controller.process(:index)
assert_not @controller.instance_variable_defined?("@authenticated")
end
end
class ChangedConditions < Callback2
before_action :first, only: :index
def not_index
@text ||= nil
self.response_body = @text.to_s
end
end
class TestCallbacksWithChangedConditions < ActiveSupport::TestCase
def setup
@controller = ChangedConditions.new
end
test "when a callback is modified in a child with :only, it works for the :only action" do
@controller.process(:index)
assert_equal "Hello world", @controller.response_body
end
test "when a callback is modified in a child with :only, it does not work for other actions" do
@controller.process(:not_index)
assert_equal "", @controller.response_body
end
end
class SetsResponseBody < ControllerWithCallbacks
before_action :set_body
def index
self.response_body = "Fail"
end
def set_body
self.response_body = "Success"
end
end
class TestHalting < ActiveSupport::TestCase
test "when a callback sets the response body, the action should not be invoked" do
controller = SetsResponseBody.new
controller.process(:index)
assert_equal "Success", controller.response_body
end
end
class CallbacksWithArgs < ControllerWithCallbacks
set_callback :process_action, :before, :first
def first
@text = "Hello world"
end
def index(text)
self.response_body = @text + text
end
end
class TestCallbacksWithArgs < ActiveSupport::TestCase
test "callbacks still work when invoking process with multiple arguments" do
controller = CallbacksWithArgs.new
controller.process(:index, " Howdy!")
assert_equal "Hello world Howdy!", controller.response_body
end
end
end
end
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