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require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
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 TestCallbacks < ActiveSupport::TestCase
test "basic callbacks work" do
result = Callback1.new.process(:index)
assert_equal "Hello world", result.response_body
end
end
class Callback2 < ControllerWithCallbacks
before_filter :first
after_filter :second
around_filter :aroundz
def first
@text = "Hello world"
end
def second
@second = "Goodbye"
end
def aroundz
@aroundz = "FIRST"
yield
@aroundz << "SECOND"
end
def index
self.response_body = @text
end
end
class TestCallbacks < ActiveSupport::TestCase
test "before_filter works" do
result = Callback2.new.process(:index)
assert_equal "Hello world", result.response_body
end
test "after_filter works" do
result = Callback2.new.process(:index)
assert_equal "Goodbye", result.instance_variable_get("@second")
end
test "around_filter works" do
result = Callback2.new.process(:index)
assert_equal "FIRSTSECOND", result.instance_variable_get("@aroundz")
end
end
class Callback3 < ControllerWithCallbacks
before_filter do |c|
c.instance_variable_set("@text", "Hello world")
end
after_filter do |c|
c.instance_variable_set("@second", "Goodbye")
end
def index
self.response_body = @text
end
end
class TestCallbacks < ActiveSupport::TestCase
test "before_filter works with procs" do
result = Callback3.new.process(:index)
assert_equal "Hello world", result.response_body
end
test "after_filter works with procs" do
result = Callback3.new.process(:index)
assert_equal "Goodbye", result.instance_variable_get("@second")
end
end
class CallbacksWithConditions < ControllerWithCallbacks
before_filter :list, :only => :index
before_filter :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 TestCallbacks < ActiveSupport::TestCase
test "when :only is specified, a before filter is triggered on that action" do
result = CallbacksWithConditions.new.process(:index)
assert_equal "Hello, World", result.response_body
end
test "when :only is specified, a before filter is not triggered on other actions" do
result = CallbacksWithConditions.new.process(:sekrit_data)
assert_equal "true", result.response_body
end
test "when :except is specified, an after filter is not triggered on that action" do
result = CallbacksWithConditions.new.process(:index)
assert_nil result.instance_variable_get("@authenticated")
end
end
class CallbacksWithArrayConditions < ControllerWithCallbacks
before_filter :list, :only => [:index, :listy]
before_filter :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 TestCallbacks < ActiveSupport::TestCase
test "when :only is specified with an array, a before filter is triggered on that action" do
result = CallbacksWithArrayConditions.new.process(:index)
assert_equal "Hello, World", result.response_body
end
test "when :only is specified with an array, a before filter is not triggered on other actions" do
result = CallbacksWithArrayConditions.new.process(:sekrit_data)
assert_equal "true", result.response_body
end
test "when :except is specified with an array, an after filter is not triggered on that action" do
result = CallbacksWithArrayConditions.new.process(:index)
assert_nil result.instance_variable_get("@authenticated")
end
end
class ChangedConditions < Callback2
before_filter :first, :only => :index
def not_index
self.response_body = @text.to_s
end
end
class TestCallbacks < ActiveSupport::TestCase
test "when a callback is modified in a child with :only, it works for the :only action" do
result = ChangedConditions.new.process(:index)
assert_equal "Hello world", result.response_body
end
test "when a callback is modified in a child with :only, it does not work for other actions" do
result = ChangedConditions.new.process(:not_index)
assert_equal "", result.response_body
end
end
class SetsResponseBody < ControllerWithCallbacks
before_filter :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
result = SetsResponseBody.new.process(:index)
assert_equal "Success", result.response_body
end
end
end
end
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