ruby-on-rails - 如果设置了 graphQL 字段方法参数默认值，则使用 RSpec 进行测试

Question

如何编写测试来检查字段方法参数的默认值？

    field :foo, String, null: false do
      argument my_argument, Int, required: true
      argument my_other_argument, Boolean, required: false
    end

    def foo(my_argument:, my_other_argument: true)
      <some code>
    end

我在 RSpec 测试中的尝试:

    field :foo, "String!" do
      it "test that my_other_argument has a default value of true"
       resolve(args: {my_argument: 10}) # Note that my_other_argument is not given a value

       expect(args[:my_other_argument]).to eq(true)
      end
    end

上面的例子失败并抛出这个错误:

undefined local variable or method `args'

所以归结起来——似乎无法弄清楚这一行应该如何写:

expect(args[:my_other_argument]).to eq(true)

...或者我走错了路？

Answer 1

如果 foo 正在调用另一个方法，您可以使用 receive 和 with。像...

class Foo
  def bar(my_other_argument: true)
    baz(my_other_argument)
  end

  def baz(val)
    # Stuff
  end
end

describe :bar do
  context 'default values' do
    it 'defaults to true' do
      @foo = Foo.new
      expect(@foo).to receive(:baz).with(true)

      @foo.bar
    end
  end
end