Class: APIMatchers::Core::FindInJSON

Inherits:
Object
  • Object
show all
Defined in:
lib/api_matchers/core/find_in_json.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(json) ⇒ FindInJSON

Returns a new instance of FindInJSON.



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# File 'lib/api_matchers/core/find_in_json.rb', line 6

def initialize(json)
  @json = json
end

Instance Attribute Details

#json ⇒ Object (readonly)

Returns the value of attribute json.



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# File 'lib/api_matchers/core/find_in_json.rb', line 4

def json
  @json
end

Instance Method Details

#find(options = {}) ⇒ Object

Raises:



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# File 'lib/api_matchers/core/find_in_json.rb', line 10

def find(options={})
  expected_key = options.fetch(:node).to_s
  expected_value = options[:value]

  @json.each do |key, value|
    if key == expected_key
      unless expected_value.nil?
        if expected_value.is_a? DateTime or expected_value.is_a? Date
          expected_value = expected_value.to_s
        elsif expected_value.is_a? Time
          expected_value = expected_value.to_datetime.to_s
        end
      end
      return value if value == expected_value or expected_value.nil?
    end

    # do we have more to recurse through?
    keep_going = nil
    if value.is_a? Hash or value.is_a? Array
      keep_going = value                  # hash or array, keep going
    elsif value.nil? and key.is_a? Hash
      keep_going = key                    # the array was passed in and now in the key, keep going
    end

    if keep_going
      begin
        # ignore nodes where the key doesn't match
        return FindInJSON.new(keep_going).find(node: expected_key, value: expected_value)
      rescue ::APIMatchers::Core::Exceptions::KeyNotFound
      end
    end

  end
   # we did not find the requested key
  raise ::APIMatchers::Core::Exceptions::KeyNotFound.new("key was not found")
end