ruby - MiniTest:如何测试退出关键字

Question

我有一个方法“退出”:

def quit
  puts "Good bye!"
  exit 
end

我想做的是做一个小型测试断言 quit 方法确实退出了，但我尝试过的都不起作用。寻找输入。提前致谢!

Answer 1

require "minitest/autorun"

def quit_42
  puts "Good bye!"
  exit 42
end

describe :exit_code do
  it "returns 42" do
    err = -> { quit_42 }.must_raise SystemExit
    err.status.must_equal 42
  end
end