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# encoding: utf-8
$:.unshift(File.expand_path(File.dirname(__FILE__) + '/../')); $:.uniq!
require 'test_helper'
class I18nBackendCascadeTest < Test::Unit::TestCase
class Backend < I18n::Backend::Simple
include I18n::Backend::Cascade
end
def setup
I18n.backend = Backend.new
store_translations(:en,
:foo => 'foo',
:bar => { :baz => 'baz' }
)
end
def lookup(key, options = {})
I18n.t(key, options.merge(:cascade => { :step => 1, :offset => 1, :skip_root => false }))
end
test "still returns an existing translation as usual" do
assert_equal 'foo', lookup(:foo)
assert_equal 'baz', lookup(:'bar.baz')
end
test "falls back by cutting keys off the end of the scope" do
assert_equal 'foo', lookup(:foo, :scope => :'missing')
assert_equal 'foo', lookup(:foo, :scope => :'missing.missing')
assert_equal 'baz', lookup(:baz, :scope => :'bar.missing')
assert_equal 'baz', lookup(:baz, :scope => :'bar.missing.missing')
end
test "raises I18n::MissingTranslationData exception when no translation was found" do
assert_raise(I18n::MissingTranslationData) { lookup(:'foo.missing', :raise => true) }
assert_raise(I18n::MissingTranslationData) { lookup(:'bar.baz.missing', :raise => true) }
assert_raise(I18n::MissingTranslationData) { lookup(:'missing.bar.baz', :raise => true) }
end
test "cascades before evaluating the default" do
assert_equal 'foo', lookup(:foo, :scope => :missing, :default => 'default')
end
test "cascades defaults, too" do
assert_equal 'foo', lookup(nil, :default => [:'missing.missing', :'missing.foo'])
end
test "let's us assemble required fallbacks for ActiveRecord validation messages" do
store_translations(:en,
:errors => {
:reply => {
:title => {
:blank => 'blank on reply title'
},
:taken => 'taken on reply'
},
:topic => {
:title => {
:format => 'format on topic title'
},
:length => 'length on topic'
},
:odd => 'odd on errors'
}
)
assert_equal 'blank on reply title', lookup(:'errors.reply.title.blank', :default => :'errors.topic.title.blank')
assert_equal 'taken on reply', lookup(:'errors.reply.title.taken', :default => :'errors.topic.title.taken')
assert_equal 'format on topic title', lookup(:'errors.reply.title.format', :default => :'errors.topic.title.format')
assert_equal 'length on topic', lookup(:'errors.reply.title.length', :default => :'errors.topic.title.length')
assert_equal 'odd on errors', lookup(:'errors.reply.title.odd', :default => :'errors.topic.title.odd')
end
end
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