Recursive test for node attributes

test.rb

require 'chef/sugar'

def loop_hash(hash, keys = [], &block)
  hash.each do |k, v|
    if v.is_a?(Hash)
      loop_hash(v, keys.push(k), &block)
      keys.pop
    elsif block
      p = keys << k
      yield(p.clone, v)
      keys.pop
    end
  end
end

# In the tests
test = {
  'nagios' => {
    'foo' => {
      'bar' => true
    }
  }
}

# k: array of parent keys
# v: value of attribute
loop_hash(test) do |k, v|
  it "Sets attribute #{k.join('.')} to #{v}" do
    expect(chef_run.node.deep_fetch(*k)).to eq(v)
  end
end

# You don't have to use top level attributes
test = {
 'foo' => {
   'bar' => 'test' 
 }
}

loop_hash(test) do |k, v|
  it "sets attributes #{k.join('.')} to #{v}" do
    expect(chef_run.node.deep_fetch('nagios', *k)).to eq(v)
  end
end