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# frozen_string_literal: true
require "helper"
require "active_job/serializers"
class SerializersTest < ActiveSupport::TestCase
class DummyValueObject
attr_accessor :value
def initialize(value)
@value = value
end
def ==(other)
self.value == other.value
end
end
class DummySerializer < ActiveJob::Serializers::ObjectSerializer
def serialize(object)
super({ "value" => object.value })
end
def deserialize(hash)
DummyValueObject.new(hash["value"])
end
private
def klass
DummyValueObject
end
end
setup do
@value_object = DummyValueObject.new 123
@original_serializers = ActiveJob::Serializers.serializers
end
teardown do
ActiveJob::Serializers._additional_serializers = @original_serializers
end
test "can't serialize unknown object" do
assert_raises ActiveJob::SerializationError do
ActiveJob::Serializers.serialize @value_object
end
end
test "will serialize objects with serializers registered" do
ActiveJob::Serializers.add_serializers DummySerializer
assert_equal(
{ "_aj_serialized" => "SerializersTest::DummySerializer", "value" => 123 },
ActiveJob::Serializers.serialize(@value_object)
)
end
test "won't deserialize unknown hash" do
hash = { "_dummy_serializer" => 123, "_aj_symbol_keys" => [] }
error = assert_raises(ArgumentError) do
ActiveJob::Serializers.deserialize(hash)
end
assert_equal(
'Serializer name is not present in the argument: {"_dummy_serializer"=>123, "_aj_symbol_keys"=>[]}',
error.message
)
end
test "won't deserialize unknown serializer" do
hash = { "_aj_serialized" => "DoNotExist", "value" => 123 }
error = assert_raises(ArgumentError) do
ActiveJob::Serializers.deserialize(hash)
end
assert_equal(
"Serializer DoNotExist is not known",
error.message
)
end
test "will deserialize know serialized objects" do
ActiveJob::Serializers.add_serializers DummySerializer
hash = { "_aj_serialized" => "SerializersTest::DummySerializer", "value" => 123 }
assert_equal DummyValueObject.new(123), ActiveJob::Serializers.deserialize(hash)
end
test "adds new serializer" do
ActiveJob::Serializers.add_serializers DummySerializer
assert ActiveJob::Serializers.serializers.include?(DummySerializer)
end
test "can't add serializer with the same key twice" do
ActiveJob::Serializers.add_serializers DummySerializer
assert_no_difference(-> { ActiveJob::Serializers.serializers.size }) do
ActiveJob::Serializers.add_serializers DummySerializer
end
end
end
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