如何在單元測試中測試接口返回的字段?
如果我們有一個api的entity爲 employment.rb
# frozen_string_literal: true
module API::Entities::BorrowerEntities
class Employment < API::Entity
param :in_type_id, safe_path: %i[primary_income_source id]
param :aaa_type, safe_path: %i[employed_code]
param :started_with_employer, safe_path: %i[started_with_employer]
end
end
let(:default_headers) { { 'CONTENT_TYPE' => 'application/json' } }
it 'xxx xxx' do
headers = { 'Authorization' => bearer_token_for(xixi.account) }.merge(default_headers)
put '/api/v1/tester/aaa', sample_entity_with('aaa_type' => 'Self-aaa').to_json, headers
expected_presenter = API::Entities::BorrowerEntities::Employment.represent(tester.account.current_aaa_detail)
expect(response_body).to eq(JSON.parse(expected_presenter.to_json))
end
詳細的例子:
Grape API Entity has a "represent" method that can be useful in specs scenarios when we expect some object to be presented with some specific entity, for example when we have:
present user, with: API::Entities::User
We are actually saying:
API::Entities::User.represent(current_user) and this will give us an object like this:
#<API::Entities::User:0x00007fe6aab82868
@object=
#<User:0x00117fe6aab82ee8
id: 35345,
name: "Test",
email: "[email protected]",
created_at: Mon, 14 Oct 2019 21:57:54 UTC +00:00,
updated_at: Mon, 14 Oct 2019 21:57:54 UTC +00:00,
@options={}>
Then in our spec scenario, we can call to_json from here and use it as a expected from the response of an API call like:
get '/api/v3/user'
expected_json = API::Entities::User.represent(current_user).to_json
expect(response.body).to eq(expected_json)