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如何为私有方法写测试

 3 years ago
source link: https://mednoter.com/how-to-test-private-method.html
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如何为私有方法写测试

今天第一次给 Rails 的私有方法写测试，查阅了些资料，目前比较流行的写法有两种。

class MyClass
  private

  def foo
    true
  end
  
  def bar
    true
   end
end

方法1：修改私有方法为 public

重新打开这个类，修改私有方法为 public。

class MyClass
  public :foo
end

class GoodsOrderTest < ActiveSupport::TestCase
 ...
 ...
end

方法2：使用 send

test "should foo" do
  instance = MyClass.new
  instance.send(:foo)
end

推荐第二种方法。

Stackoverflow: What’s the best way to unit test protected & private methods in Ruby?

吕小荣
23 December 2013

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