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# frozen_string_literal: true
require "test_helper"
class AcceptLanguageTest < Minitest::Test
def assert_language(item, expect = {})
assert_equal expect[:code], item.code, "failed code comparison"
if expect[:region]
assert_equal expect[:region], item.region, "failed region comparison"
else
assert_nil item.region,
"region should be nil; got #{item.region.inspect} instead"
end
assert_equal expect[:quality], item.quality, "failed quality comparison"
end
test "returns full language" do
language = Browser::AcceptLanguage.new("en-GB")
assert_equal "en-GB", language.full
end
test "returns language name" do
language = Browser::AcceptLanguage.new("en-GB")
assert_equal "English/United Kingdom", language.name
language = Browser::AcceptLanguage.new("en")
assert_equal "English", language.name
end
test "returns nil for unknown languages" do
language = Browser::AcceptLanguage.new("unknown")
assert_nil language.name
end
test "returns code" do
language = Browser::AcceptLanguage.new("en-GB")
assert_equal "en", language.code
end
test "returns formatted code" do
%w[EN-GB En-GB eN-GB].each do |locale|
language = Browser::AcceptLanguage.new(locale)
assert_equal "en", language.code
end
end
test "returns region" do
language = Browser::AcceptLanguage.new("en-GB")
assert_equal "GB", language.region
end
test "returns formatted region" do
%w[en-gb en-Gb en-gB].each do |locale|
language = Browser::AcceptLanguage.new(locale)
assert_equal "GB", language.region
end
end
test "returns nil for language without region" do
language = Browser::AcceptLanguage.new("en")
assert_nil language.region
end
test "parses language with quality" do
language = Browser::AcceptLanguage.new("en-GB;q=0.8")
assert_language language, code: "en", region: "GB", quality: 0.8
end
test "parses language without quality" do
language = Browser::AcceptLanguage.new("en-GB")
assert_language language, code: "en", region: "GB", quality: 1.0
end
test "parses language without region" do
language = Browser::AcceptLanguage.new("en")
assert_language language, code: "en", region: nil, quality: 1.0
end
test "ignores multi-part region" do
language = Browser::AcceptLanguage.new("az-AZ-Cyrl")
assert_language language, code: "az", region: "AZ", quality: 1.0
end
test "parses multi-language set" do
result = Browser::AcceptLanguage.parse("fr-CA,fr;q=0.8")
assert_equal 2, result.count
assert_language result[0], code: "fr", region: "CA", quality: 1.0
assert_language result[1], code: "fr", region: nil, quality: 0.8
end
test "parses wildcard" do
result = Browser::AcceptLanguage.parse("fr-CA,*;q=0.8")
assert_language result[0], code: "fr", region: "CA", quality: 1.0
assert_language result[1], code: "*", region: nil, quality: 0.8
end
test "parses complex set" do
accept_language = "fr-CA,fr;q=0.8,en-US;q=0.6,en;q=0.4,*;q=0.1"
result = Browser::AcceptLanguage.parse(accept_language)
assert_language result[0], code: "fr", region: "CA", quality: 1.0
assert_language result[1], code: "fr", region: nil, quality: 0.8
assert_language result[2], code: "en", region: "US", quality: 0.6
assert_language result[3], code: "en", region: nil, quality: 0.4
assert_language result[4], code: "*", region: nil, quality: 0.1
end
test "handles random white spaces" do
accept_language = "fr-CA, fr;q=0.8, en-US;q=0.6,en;q=0.4, *;q=0.1"
result = Browser::AcceptLanguage.parse(accept_language)
assert_language result[0], code: "fr", region: "CA", quality: 1.0
assert_language result[1], code: "fr", region: nil, quality: 0.8
assert_language result[2], code: "en", region: "US", quality: 0.6
assert_language result[3], code: "en", region: nil, quality: 0.4
assert_language result[4], code: "*", region: nil, quality: 0.1
end
test "sorts based on quality" do
accept_language = "fr-CA,fr;q=0.2,en-US;q=0.6,en;q=0.4,*;q=0.5"
result = Browser::AcceptLanguage.parse(accept_language)
assert_language result[0], code: "fr", region: "CA", quality: 1.0
assert_language result[1], code: "en", region: "US", quality: 0.6
assert_language result[2], code: "*", region: nil, quality: 0.5
assert_language result[3], code: "en", region: nil, quality: 0.4
assert_language result[4], code: "fr", region: nil, quality: 0.2
end
test "sorts the same quality in a descending priority" do
accept_language = "fr-CA,fr;q=0.2,en-US;q=0.2,en"
result = Browser::AcceptLanguage.parse(accept_language)
assert_language result[0], code: "fr", region: "CA", quality: 1.0
assert_language result[1], code: "en", region: nil, quality: 1.0
assert_language result[2], code: "fr", region: nil, quality: 0.2
assert_language result[3], code: "en", region: "US", quality: 0.2
end
test "rejects quality values equals to zero (#241)" do
result = Browser::AcceptLanguage.parse("de-DE,ru;q=0.9,de;q=0.8,en;q=0.")
assert_equal 3, result.size
assert_language result[0], code: "de", region: "DE", quality: 1.0
assert_language result[1], code: "ru", region: nil, quality: 0.9
assert_language result[2], code: "de", region: nil, quality: 0.8
end
test "handles invalid quality values that look like a number" do
accept_language = "fr-CH, fr;q=0.9, en;q=0.8, de;q=0..7, *;q=0.5"
result = Browser::AcceptLanguage.parse(accept_language)
assert_equal 5, result.size
assert_language result[3], code: "de", region: nil, quality: 0.7
end
test "sets default quality value for invalid strings" do
result = Browser::AcceptLanguage.parse(";q=0.0.0.0")
assert_equal 0.1, result[0].quality # rubocop:disable Minitest/AssertInDelta
end
end
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