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# -*- ruby encoding: utf-8 -*-
require 'mime/types'
require 'minitest_helper'
describe MIME::Types::Cache do
def setup
require 'fileutils'
@cache_file = File.expand_path('../cache.tst', __FILE__)
ENV['RUBY_MIME_TYPES_CACHE'] = @cache_file
clear_cache_file
end
def teardown
clear_cache_file
ENV.delete('RUBY_MIME_TYPES_CACHE')
end
def reset_mime_types
MIME::Types.instance_variable_set(:@__types__, nil)
MIME::Types.send(:load_default_mime_types)
end
def clear_cache_file
FileUtils.rm @cache_file if File.exist? @cache_file
end
describe '.load' do
it 'does not use cache when RUBY_MIME_TYPES_CACHE is unset' do
ENV.delete('RUBY_MIME_TYPES_CACHE')
assert_equal(nil, MIME::Types::Cache.load)
end
it 'does not use cache when missing' do
assert_equal(nil, MIME::Types::Cache.load)
end
it 'outputs an error when there is an invalid version' do
v = MIME::Types::Data::VERSION.dup
MIME::Types::Data::VERSION.gsub!(/.*/, '0.0')
MIME::Types::Cache.save
MIME::Types::Data::VERSION.gsub!(/.*/, v)
MIME::Types.instance_variable_set(:@__types__, nil)
assert_output '', /MIME::Types cache: invalid version/ do
MIME::Types['text/html']
end
end
it 'outputs an error when there is a marshal file incompatibility' do
MIME::Types::Cache.save
data = File.binread(@cache_file).reverse
File.open(@cache_file, 'wb') { |f| f.write(data) }
MIME::Types.instance_variable_set(:@__types__, nil)
assert_output '', /incompatible marshal file format/ do
MIME::Types['text/html']
end
end
end
describe '.save' do
it 'does not create cache when RUBY_MIME_TYPES_CACHE is unset' do
ENV.delete('RUBY_MIME_TYPES_CACHE')
assert_equal(nil, MIME::Types::Cache.save)
end
it 'creates the cache ' do
assert_equal(false, File.exist?(@cache_file))
MIME::Types::Cache.save
assert_equal(true, File.exist?(@cache_file))
end
it 'uses the cache' do
MIME::Types['text/html'].first.add_extensions('hex')
MIME::Types::Cache.save
MIME::Types.instance_variable_set(:@__types__, nil)
assert_includes MIME::Types['text/html'].first.extensions, 'hex'
reset_mime_types
end
end
end
describe MIME::Types::Container do
it 'marshals and unmarshals correctly' do
container = MIME::Types::Container.new
container['xyz'] << 'abc'
# default proc should return Set[]
assert_equal(Set[], container['abc'])
assert_equal(Set['abc'], container['xyz'])
marshalled = Marshal.dump(container)
loaded_container = Marshal.load(marshalled)
# default proc should still return Set[]
assert_equal(Set[], loaded_container['abc'])
assert_equal(Set['abc'], container['xyz'])
end
end
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