起初,对不起我的英文:)
我需要在Ruby on Rails应用程序(v 4.2.0)中实现API控制器的测试。当我向GET Advertising Sources请求时,我有一个像这样的json响应:
{"advertising_sources":[{"id":59,"title":"accusantium"},{"id":60,"title":"assumenda"}]}
JSON响应模板由前端开发人员定义。现在我尝试为以下内容创建测试:1。JSON大小(2个广告源)2。包含属性(id,title)
我的测试:
it 'returns list of advertising sources' do
expect(response.body).to have_json_size(2)
end
%w(id title).each do |attr|
it "returns json with #{attr} included" do
hash_body = JSON.parse(response.body)
expect(hash_body).to include(attr)
end
end
失败:
1. Failure/Error: expect(response.body).to have_json_size(2)
expected {"advertising_sources":[{"id":59,"title":"accusantium"},{"id":60,"title":"assumenda"}]} to respond to `has_json_size?`
2. Failure/Error: expect(hash_body).to include(attr)
expected {"advertising_sources" => [{"id" => 71, "title" => "necessitatibus"}, {"id" => 72, "title" => "impedit"}]} to include "id"
Diff:
@@ -1,2 +1,2 @@
-["id"]
+"advertising_sources" => [{"id"=>71, "title"=>"necessitatibus"}, {"id"=>72, "title"=>"impedit"}],
任何人都可以帮我纠正我的测试代码吗?谢谢!
根据您的响应形状和您有兴趣测试的特性,您可以按如下方式编写测试:
describe 'advertising_sources' do
let(:parsed_response_body) { JSON.parse(response.body) }
let(:advertising_sources) { parsed_response_body['advertising_sources'] }
it 'returns list of advertising sources' do
expect(advertising_sources.size).to eq(2)
end
%w(id title).each do |attr|
it "returns json with #{attr} included" do
advertising_sources.each { |source| expect(source.keys).to include(attr) }
end
end
end
我个人会进一步简化这个:
describe 'advertising_sources' do
let(:parsed_response_body) { JSON.parse(response.body) }
let(:advertising_sources) { parsed_response_body['advertising_sources'] }
it 'returns list of advertising sources' do
expect(advertising_sources.size).to eq(2)
end
it 'includes an id and title for each source' do
advertising_sources.each { |source| expect(source.keys).to match_array(%w(id title)) }
end
end