如何断言一个类将使用RSpec响应一个类方法？

require 'spec_helper'

describe ClassName do
  it 'responds to method' do
    # Your test logic here
  end
end

rspec

expect(ClassName).to respond_to(:method_name)

describe ClassName do
  it 'responds to method' do
    # Your test logic here
    expect(ClassName).to respond_to(:method_name)
  end

  # Add additional examples for the class
  it 'has a method' do
    expect(ClassName).to respond_to(:another_method)
  end
end

rdoc

rspec --format documentation