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# frozen_string_literal: true
require 'test_helper'
module ActiveModel
class Serializer
class CollectionSerializerTest < ActiveSupport::TestCase
class SingularModel < ::Model; end
class SingularModelSerializer < ActiveModel::Serializer
end
class HasManyModel < ::Model
associations :singular_models
end
class HasManyModelSerializer < ActiveModel::Serializer
has_many :singular_models
def custom_options
instance_options
end
end
class MessagesSerializer < ActiveModel::Serializer
type 'messages'
end
def setup
@singular_model = SingularModel.new
@has_many_model = HasManyModel.new
@resource = build_named_collection @singular_model, @has_many_model
@serializer = collection_serializer.new(@resource, some: :options)
end
def collection_serializer
CollectionSerializer
end
def build_named_collection(*resource)
resource.define_singleton_method(:name) { 'MeResource' }
resource
end
def test_has_object_reader_serializer_interface
assert_equal @serializer.object, @resource
end
def test_respond_to_each
assert_respond_to @serializer, :each
end
def test_each_object_should_be_serialized_with_appropriate_serializer
serializers = @serializer.to_a
assert_kind_of SingularModelSerializer, serializers.first
assert_kind_of SingularModel, serializers.first.object
assert_kind_of HasManyModelSerializer, serializers.last
assert_kind_of HasManyModel, serializers.last.object
assert_equal :options, serializers.last.custom_options[:some]
end
def test_serializer_option_not_passed_to_each_serializer
serializers = collection_serializer.new([@has_many_model], serializer: HasManyModelSerializer).to_a
refute serializers.first.custom_options.key?(:serializer)
end
def test_root_default
@serializer = collection_serializer.new([@singular_model, @has_many_model])
assert_nil @serializer.root
end
def test_root
expected = 'custom_root'
@serializer = collection_serializer.new([@singular_model, @has_many_model], root: expected)
assert_equal expected, @serializer.root
end
def test_root_with_no_serializers
expected = 'custom_root'
@serializer = collection_serializer.new([], root: expected)
assert_equal expected, @serializer.root
end
def test_json_key_with_resource_with_serializer
singular_key = @serializer.send(:serializers).first.json_key
assert_equal singular_key.pluralize, @serializer.json_key
end
def test_json_key_with_resource_with_name_and_no_serializers
serializer = collection_serializer.new(build_named_collection)
assert_equal 'me_resources', serializer.json_key
end
def test_json_key_with_resource_with_nil_name_and_no_serializers
resource = []
resource.define_singleton_method(:name) { nil }
serializer = collection_serializer.new(resource)
assert_raise ArgumentError do
serializer.json_key
end
end
def test_json_key_with_resource_without_name_and_no_serializers
serializer = collection_serializer.new([])
assert_raise ArgumentError do
serializer.json_key
end
end
def test_json_key_with_empty_resources_with_serializer
resource = []
serializer = collection_serializer.new(resource, serializer: MessagesSerializer)
assert_equal 'messages', serializer.json_key
end
def test_json_key_with_root
expected = 'custom_root'
serializer = collection_serializer.new(@resource, root: expected)
assert_equal expected, serializer.json_key
end
def test_json_key_with_root_and_no_serializers
expected = 'custom_root'
serializer = collection_serializer.new(build_named_collection, root: expected)
assert_equal expected, serializer.json_key
end
end
end
end
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