Ruby Rspec块（3层）位于<；顶部（必需）>；错误

提交项目时，我在travis ci中遇到以下错误：

Failures:

  1) salt on unsupported distributions we fail
     Failure/Error: expect { subject }.to raise_error(/Unsupported platform: Unsupported/)
       expected Exception with message matching /Unsupported platform: Unsupported/ but nothing was raised
     # ./spec/classes/salt_spec.rb:9:in `block (3 levels) in <top (required)>'

Finished in 6.5 seconds
47 examples, 1 failure

Failed examples:

rspec ./spec/classes/salt_spec.rb:8 # salt on unsupported distributions we fail
/home/travis/.rvm/rubies/ruby-2.0.0-p598/bin/ruby -S rspec spec/classes/salt_spec.rb --color failed

如果我正确理解了中的

块（3个级别），那么缩进在第5行和第11行之间的某个地方是错误的，但是我觉得它是正确的。任何与此相关的帮助都将不胜感激，因为这是我第一次与rspec打交道，我正在努力学习

编辑
这是我自己修好的。我更改了以下代码：

  context 'on unsupported distributions' do
    let(:facts) {{ :osfamily => 'Unsupported' }}

    it 'we fail' do
      expect { subject }.to raise_error(/Unsupported platform: Unsupported/)
    end
  end

为此：

  context 'on unsupported distributions' do
    let(:facts) {{ :osfamily => 'Unsupported' }}

    it 'we fail' do
      should compile.and_raise_error(/Unsupported platform: Unsupported/)
    end
  end

现在它似乎正在过去。我想我的问题是：这是正确的还是我错误地通过了考试？
通过更改以下内容解决了这一问题：

上下文“在不支持的发行版上”不支持
let（：facts）{{osfamily=>'Unsupported'}

it 'we fail' do
  expect { subject }.to raise_error(/Unsupported platform: Unsupported/)
end

it 'we fail' do
  should compile.and_raise_error(/Unsupported platform: Unsupported/)
end

为此：

  context 'on unsupported distributions' do
    let(:facts) {{ :osfamily => 'Unsupported' }}

    it 'we fail' do
      should compile.and_raise_error(/Unsupported platform: Unsupported/)
    end
  end

上下文“在不支持的发行版上”不支持
let（：facts）{{osfamily=>'Unsupported'}

it 'we fail' do
  expect { subject }.to raise_error(/Unsupported platform: Unsupported/)
end

it 'we fail' do
  should compile.and_raise_error(/Unsupported platform: Unsupported/)
end

不知道这为什么会被否决。答案不是很明显，我不得不搜索git问题以找到解决方案。