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# frozen_string_literal: true
require 'test_helper'
module ActiveModelSerializers
class AdapterForTest < ::ActiveSupport::TestCase
UnknownAdapterError = ::ActiveModelSerializers::Adapter::UnknownAdapterError
def test_serializer_adapter_returns_configured_adapter
assert_output(nil, /ActiveModelSerializers::Adapter.configured_adapter/) do
assert_equal ActiveModelSerializers::Adapter.configured_adapter, ActiveModel::Serializer.adapter
end
end
def test_returns_default_adapter
with_adapter_config_setup do
adapter = ActiveModelSerializers::Adapter.configured_adapter
assert_equal ActiveModelSerializers::Adapter::Attributes, adapter
end
end
def test_overwrite_adapter_with_symbol
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = :null
adapter = ActiveModelSerializers::Adapter.configured_adapter
assert_equal ActiveModelSerializers::Adapter::Null, adapter
end
end
def test_overwrite_adapter_with_camelcased_symbol
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = :JsonApi
adapter = ActiveModelSerializers::Adapter.configured_adapter
assert_equal ActiveModelSerializers::Adapter::JsonApi, adapter
end
end
def test_overwrite_adapter_with_string
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = 'json_api'
adapter = ActiveModelSerializers::Adapter.configured_adapter
assert_equal ActiveModelSerializers::Adapter::JsonApi, adapter
end
end
def test_overwrite_adapter_with_a_camelcased_string
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = 'JsonApi'
adapter = ActiveModelSerializers::Adapter.configured_adapter
assert_equal ActiveModelSerializers::Adapter::JsonApi, adapter
end
end
def test_overwrite_adapter_with_class
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = ActiveModelSerializers::Adapter::Null
adapter = ActiveModelSerializers::Adapter.configured_adapter
assert_equal ActiveModelSerializers::Adapter::Null, adapter
end
end
def test_raises_exception_if_invalid_symbol_given
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = :unknown
assert_raises ActiveModelSerializers::Adapter::UnknownAdapterError do
ActiveModelSerializers::Adapter.configured_adapter
end
end
end
def test_raises_exception_if_it_does_not_know_hot_to_infer_adapter
with_adapter_config_setup do
ActiveModelSerializers.config.adapter = 42
assert_raises ActiveModelSerializers::Adapter::UnknownAdapterError do
ActiveModelSerializers::Adapter.configured_adapter
end
end
end
def test_adapter_class_for_known_adapter
klass = ActiveModelSerializers::Adapter.adapter_class(:json_api)
assert_equal ActiveModelSerializers::Adapter::JsonApi, klass
end
def test_adapter_class_for_unknown_adapter
assert_raises ActiveModelSerializers::Adapter::UnknownAdapterError do
ActiveModelSerializers::Adapter.adapter_class(:json_simple)
end
end
def test_adapter_map
expected_adapter_map = {
'null'.freeze => ActiveModelSerializers::Adapter::Null,
'json'.freeze => ActiveModelSerializers::Adapter::Json,
'attributes'.freeze => ActiveModelSerializers::Adapter::Attributes,
'json_api'.freeze => ActiveModelSerializers::Adapter::JsonApi
}
actual = ActiveModelSerializers::Adapter.adapter_map
assert_equal actual, expected_adapter_map
end
def test_adapters
assert_equal ActiveModelSerializers::Adapter.adapters.sort, [
'attributes'.freeze,
'json'.freeze,
'json_api'.freeze,
'null'.freeze
]
end
def test_lookup_adapter_by_string_name
assert_equal ActiveModelSerializers::Adapter.lookup('json'.freeze), ActiveModelSerializers::Adapter::Json
end
def test_lookup_adapter_by_symbol_name
assert_equal ActiveModelSerializers::Adapter.lookup(:json), ActiveModelSerializers::Adapter::Json
end
def test_lookup_adapter_by_class
klass = ActiveModelSerializers::Adapter::Json
assert_equal ActiveModelSerializers::Adapter.lookup(klass), klass
end
def test_lookup_adapter_from_environment_registers_adapter
ActiveModelSerializers::Adapter.const_set(:AdapterFromEnvironment, Class.new)
klass = ::ActiveModelSerializers::Adapter::AdapterFromEnvironment
name = 'adapter_from_environment'.freeze
assert_equal ActiveModelSerializers::Adapter.lookup(name), klass
assert ActiveModelSerializers::Adapter.adapters.include?(name)
ensure
ActiveModelSerializers::Adapter.adapter_map.delete(name)
ActiveModelSerializers::Adapter.send(:remove_const, :AdapterFromEnvironment)
end
def test_lookup_adapter_for_unknown_name
assert_raises ActiveModelSerializers::Adapter::UnknownAdapterError do
ActiveModelSerializers::Adapter.lookup(:json_simple)
end
end
def test_adapter
assert_equal ActiveModelSerializers.config.adapter, :attributes
assert_equal ActiveModelSerializers::Adapter.configured_adapter, ActiveModelSerializers::Adapter::Attributes
end
def test_register_adapter
new_adapter_name = :foo
new_adapter_klass = Class.new
ActiveModelSerializers::Adapter.register(new_adapter_name, new_adapter_klass)
assert ActiveModelSerializers::Adapter.adapters.include?('foo'.freeze)
assert ActiveModelSerializers::Adapter.lookup(:foo), new_adapter_klass
ensure
ActiveModelSerializers::Adapter.adapter_map.delete(new_adapter_name.to_s)
end
def test_inherited_adapter_hooks_register_adapter
Object.const_set(:MyAdapter, Class.new)
my_adapter = MyAdapter
ActiveModelSerializers::Adapter::Base.inherited(my_adapter)
assert_equal ActiveModelSerializers::Adapter.lookup(:my_adapter), my_adapter
ensure
ActiveModelSerializers::Adapter.adapter_map.delete('my_adapter'.freeze)
Object.send(:remove_const, :MyAdapter)
end
def test_inherited_adapter_hooks_register_namespaced_adapter
Object.const_set(:MyNamespace, Module.new)
MyNamespace.const_set(:MyAdapter, Class.new)
my_adapter = MyNamespace::MyAdapter
ActiveModelSerializers::Adapter::Base.inherited(my_adapter)
assert_equal ActiveModelSerializers::Adapter.lookup(:'my_namespace/my_adapter'), my_adapter
ensure
ActiveModelSerializers::Adapter.adapter_map.delete('my_namespace/my_adapter'.freeze)
MyNamespace.send(:remove_const, :MyAdapter)
Object.send(:remove_const, :MyNamespace)
end
def test_inherited_adapter_hooks_register_subclass_of_registered_adapter
Object.const_set(:MyAdapter, Class.new)
my_adapter = MyAdapter
Object.const_set(:MySubclassedAdapter, Class.new(MyAdapter))
my_subclassed_adapter = MySubclassedAdapter
ActiveModelSerializers::Adapter::Base.inherited(my_adapter)
ActiveModelSerializers::Adapter::Base.inherited(my_subclassed_adapter)
assert_equal ActiveModelSerializers::Adapter.lookup(:my_adapter), my_adapter
assert_equal ActiveModelSerializers::Adapter.lookup(:my_subclassed_adapter), my_subclassed_adapter
ensure
ActiveModelSerializers::Adapter.adapter_map.delete('my_adapter'.freeze)
ActiveModelSerializers::Adapter.adapter_map.delete('my_subclassed_adapter'.freeze)
Object.send(:remove_const, :MyAdapter)
Object.send(:remove_const, :MySubclassedAdapter)
end
private
def with_adapter_config_setup
previous_adapter = ActiveModelSerializers.config.adapter
yield
ensure
ActiveModelSerializers.config.adapter = previous_adapter
end
end
end
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