我有以下设置:
class Simple
def self.test; end
end
task a_simple_job: :environment do
counter = 0
while counter < 2
Simple.test
counter += 1
end
end
require "rails_helper"
describe "a_simple_job" do
subject { Rake::Task[:a_simple_job].invoke }
before do
Rails.application.load_tasks
allow(Simple).to receive(:test)
subject
end
# It seems like rspec cannot spy on objects created in the context of rake tasks
it "calls test twice" do
expect(Simple).to receive(:test).once
end
end
为什么我得到:
(简单(类)).测试
预期:1 次(有任何参数)
收到:0次,有任何争论
关于 rake 任务上下文和 rspec,我是否缺少一些东西?
您应该使用
have_received
而不是 receive
。那是因为您在断言之前已经调用了您的任务(因此Simple.test
)。
参考:https://rubydoc.info/github/rspec/rspec-mocks/RSpec%2FMocks%2FExampleMethods:have_received
我让它在我的机器上运行。
# lib/tasks/simple_task.rake
task a_simple_job: :environment do
counter = 0
while counter < 2
Simple.test
puts "counter: #{counter}"
counter += 1
end
end
# lib/simple.rb
class Simple
def self.test
puts "test"
end
end
# spec/lib/tasks/simple_task_spec.rb
require "rails_helper"
require "simple"
describe "a_simple_job" do
subject { Rake::Task[:a_simple_job].invoke }
before do
Rails.application.load_tasks
allow(Simple).to receive(:test)
end
it "calls test twice" do
Rake::Task[:a_simple_job].invoke
expect(Simple).to have_received(:test).twice # Because it is called twice in the loop
end
end
这是测试结果。