Module: JsonSpec::Helpers

Extended by:
Helpers
Included in:
Helpers
Defined in:
lib/json_spec/helpers.rb

Instance Method Summary (collapse)

Instance Method Details

- (Object) json_at_path(json, path) 



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# File 'lib/json_spec/helpers.rb', line 5

def json_at_path(json, path)
  pretty_json_value(ruby_at_json_path(json, path))
end

- (Object) json_path_to_keys(path) 



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# File 'lib/json_spec/helpers.rb', line 26

def json_path_to_keys(path)
  path.to_s.gsub(/(?:^\/|\/$)/, "").split("/").map{|k| k =~ /^\d+$/ ? k.to_i : k }
end

- (Object) missing_json_path!(path)

Raises:



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# File 'lib/json_spec/helpers.rb', line 37

def missing_json_path!(path)
  raise JsonSpec::MissingPathError.new(path)
end

- (Object) parse_json_value(json) 



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# File 'lib/json_spec/helpers.rb', line 30

def parse_json_value(json)
  JSON.parse(%({"root":#{json}}))["root"]
rescue JSON::ParserError
  # Re-raise more appropriate parsing error
  JSON.parse(json)
end

- (Object) pretty_json_value(ruby) 



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# File 'lib/json_spec/helpers.rb', line 9

def pretty_json_value(ruby)
  case ruby
  when Hash, Array then JSON.pretty_generate(ruby)
  when NilClass then "null"
  else ruby.inspect
  end
end

- (Object) ruby_at_json_path(json, path) 



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# File 'lib/json_spec/helpers.rb', line 17

def ruby_at_json_path(json, path)
  json_path_to_keys(path).inject(parse_json_value(json)) do |value, key|
    case value
    when Hash, Array then value.fetch(key){ missing_json_path!(path) }
    else missing_json_path!(path)
    end
  end
end