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require "abstract_unit"
class CurrentAttributesTest < ActiveSupport::TestCase
Person = Struct.new(:name, :time_zone)
class Current < ActiveSupport::CurrentAttributes
attribute :world, :account, :person, :request
delegate :time_zone, to: :person
resets { Time.zone = "UTC" }
def account=(account)
super
self.person = "#{account}'s person"
end
def person=(person)
super
Time.zone = person.try(:time_zone)
end
def request
"#{super} something"
end
def intro
"#{person.name}, in #{time_zone}"
end
end
setup { Current.reset }
test "read and write attribute" do
Current.world = "world/1"
assert_equal "world/1", Current.world
end
test "read overwritten attribute method" do
Current.request = "request/1"
assert_equal "request/1 something", Current.request
end
test "set attribute via overwritten method" do
Current.account = "account/1"
assert_equal "account/1", Current.account
assert_equal "account/1's person", Current.person
end
test "set auxiliary class via overwritten method" do
Current.person = Person.new("David", "Central Time (US & Canada)")
assert_equal "Central Time (US & Canada)", Time.zone.name
end
test "resets auxiliary class via callback" do
Current.person = Person.new("David", "Central Time (US & Canada)")
assert_equal "Central Time (US & Canada)", Time.zone.name
Current.reset
assert_equal "UTC", Time.zone.name
end
test "set attribute only via scope" do
Current.world = "world/1"
Current.set(world: "world/2") do
assert_equal "world/2", Current.world
end
assert_equal "world/1", Current.world
end
test "set multiple attributes" do
Current.world = "world/1"
Current.account = "account/1"
Current.set(world: "world/2", account: "account/2") do
assert_equal "world/2", Current.world
assert_equal "account/2", Current.account
end
assert_equal "world/1", Current.world
assert_equal "account/1", Current.account
end
test "delegation" do
Current.person = Person.new("David", "Central Time (US & Canada)")
assert_equal "Central Time (US & Canada)", Current.time_zone
assert_equal "Central Time (US & Canada)", Current.instance.time_zone
end
test "all methods forward to the instance" do
Current.person = Person.new("David", "Central Time (US & Canada)")
assert_equal "David, in Central Time (US & Canada)", Current.intro
assert_equal "David, in Central Time (US & Canada)", Current.instance.intro
end
end
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