Rspec测试调用了服务函数

Question

我有一个服务，我想测试是否调用了一个函数。我不知道如何测试它，因为它似乎没有一个subject正在被操作。

class HubspotFormSubmissionService
def initialize(form_data)
@form_data = form_data
end
def call
potential_client = createPotentialClient
end
def createPotentialClient
p "Step 1: Attempting to save potential client to database"
end
end

我想测试createPotentialClient是否被称为：

require 'rails_helper'
RSpec.describe HubspotFormSubmissionService, type: :model do
describe '#call' do
let(:form_data) { {
"first_name"=>"Jeremy", 
"message"=>"wqffew", 
"referrer"=>"Another Client"
} }
it 'attempts to process the form data' do
expect(HubspotFormSubmissionService).to receive(:createPotentialClient)
HubspotFormSubmissionService.new(form_data).call
end
end
end

我应该采取什么不同的做法？

Answer 1

您可以这样设置主题。然后在测试中，期望受试者收到的方法就像你在被嘲笑后得到的方法一样。我还将对createPotentialClient进行单独的测试，以测试它是否返回了您期望的值。

subject { described_class.call } 
before do
allow(described_class).to receive(:createPotentialClient)
end
it 'calls the method' do
expect(described_class).to receive(:createPotentialClient)
subject
end