Question

我有一个Foo课程。

class Foo
  def open_url
    Net::HTTP.start("google.com") do |http|
      # Do Something
    end
  rescue Exception => e
    File.open("error.txt","a+"){|f| f.puts e.message }
  end
end

我想通过这个Rspec进行测试。

require_relative 'foo'

describe Foo do
  describe "#open_url" do
    it "should put error log if connection fails" do
      Net::HTTP.stub(:start).and_return(Exception)
      # Check if a line to error.txt is added.
    end
  end
end

如何检查是否已将一行插入error.txt？

Answer 1

您可以阅读实际编写的文件

describe Foo do
  describe "#open_url" do
    it "should put error log if connection fails" do
      Net::HTTP.stub(:start).and_raise
      Foo.open_url
      file = File.open("error.txt", "r")
      # ...
    end
  end
end

另一种方法是检查文件是否已打开：这是

的内容

File.should_receive(:open).with("error.txt", "a+", {|f| f.puts e.message })

如何通过在rspec中生成rescue语句来测试向错误日志添加行

1 个答案: