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|
# frozen_string_literal: true
require "erb"
require "yaml"
module ActiveRecord
class FixtureSet
class File # :nodoc:
include Enumerable
##
# Open a fixture file named +file+. When called with a block, the block
# is called with the filehandle and the filehandle is automatically closed
# when the block finishes.
def self.open(file)
x = new file
block_given? ? yield(x) : x
end
def initialize(file)
@file = file
end
def each(&block)
rows.each(&block)
end
def model_class
config_row["model_class"]
end
def ignored_fixtures
config_row["ignore"]
end
private
def rows
@rows ||= raw_rows.reject { |fixture_name, _| fixture_name == "_fixture" }
end
def config_row
@config_row ||= begin
row = raw_rows.find { |fixture_name, _| fixture_name == "_fixture" }
if row
row.last
else
{ 'model_class': nil, 'ignore': nil }
end
end
end
def raw_rows
@raw_rows ||= begin
data = YAML.load(render(IO.read(@file)))
data ? validate(data).to_a : []
rescue ArgumentError, Psych::SyntaxError => error
raise Fixture::FormatError, "a YAML error occurred parsing #{@file}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n #{error.class}: #{error}", error.backtrace
end
end
def prepare_erb(content)
erb = ERB.new(content)
erb.filename = @file
erb
end
def render(content)
context = ActiveRecord::FixtureSet::RenderContext.create_subclass.new
prepare_erb(content).result(context.get_binding)
end
# Validate our unmarshalled data.
def validate(data)
unless Hash === data || YAML::Omap === data
raise Fixture::FormatError, "fixture is not a hash: #{@file}"
end
invalid = data.reject { |_, row| Hash === row }
if invalid.any?
raise Fixture::FormatError, "fixture key is not a hash: #{@file}, keys: #{invalid.keys.inspect}"
end
data
end
end
end
end
|
