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require 'test_helper'
require 'backend/simple_test'
class I18nBackendMemoizeTest < I18nBackendSimpleTest
module MemoizeSpy
attr_accessor :spy_calls
def available_locales
self.spy_calls = (self.spy_calls || 0) + 1
super
end
end
class MemoizeBackend < I18n::Backend::Simple
include MemoizeSpy
include I18n::Backend::Memoize
end
def setup
super
I18n.backend = MemoizeBackend.new
end
def test_memoizes_available_locales
I18n.backend.spy_calls = 0
assert_equal I18n.available_locales, I18n.available_locales
assert_equal 1, I18n.backend.spy_calls
end
def test_resets_available_locales_on_reload!
I18n.available_locales
I18n.backend.spy_calls = 0
I18n.reload!
assert_equal I18n.available_locales, I18n.available_locales
assert_equal 1, I18n.backend.spy_calls
end
def test_resets_available_locales_on_store_translations
I18n.available_locales
I18n.backend.spy_calls = 0
I18n.backend.store_translations(:copa, :ca => :bana)
assert_equal I18n.available_locales, I18n.available_locales
assert I18n.available_locales.include?(:copa)
assert_equal 1, I18n.backend.spy_calls
end
def test_eager_load
I18n.eager_load!
I18n.backend.spy_calls = 0
assert_equal I18n.available_locales, I18n.available_locales
assert_equal 0, I18n.backend.spy_calls
end
module TestLookup
def lookup(locale, key, scope = [], options = {})
keys = I18n.normalize_keys(locale, key, scope, options[:separator])
keys.inspect
end
end
def test_lookup_concurrent_consistency
backend_impl = Class.new(I18n::Backend::Simple) do
include TestLookup
include I18n::Backend::Memoize
end
backend = backend_impl.new
memoized_lookup = backend.send(:memoized_lookup)
assert_equal "[:foo, :scoped, :sample]", backend.translate('foo', scope = [:scoped, :sample])
30.times.inject([]) do |memo, i|
memo << Thread.new do
backend.translate('bar', scope); backend.translate(:baz, scope)
end
end.each(&:join)
memoized_lookup = backend.send(:memoized_lookup)
puts memoized_lookup.inspect if $VERBOSE
assert_equal 3, memoized_lookup.size, "NON-THREAD-SAFE lookup memoization backend: #{memoized_lookup.class}"
# if a plain Hash is used might eventually end up in a weird (inconsistent) state
end
end
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