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Locale_AcceptLanguage_Tests.swift
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@testable import SwiftLocale
import XCTest
final class Locale_AcceptLanguage_Tests: XCTestCase {
private struct TestData {
let httpAcceptLanguageHeader: String
let available: [SwiftLocale.Locale]?
let allowFallback: Bool
let expectedResult: SwiftLocale.Locale?
init(_ httpAcceptLanguageHeader: String, _ available: [SwiftLocale.Locale]?, _ allowFallback: Bool, _ expectedResult: SwiftLocale.Locale?) {
self.httpAcceptLanguageHeader = httpAcceptLanguageHeader
self.available = available
self.allowFallback = allowFallback
self.expectedResult = expectedResult
}
}
func test_AcceptLanguage() {
for data in testsDataWithFallback + testsDataWithoutFallback {
let result = SwiftLocale.Locale.acceptLanguage(data.httpAcceptLanguageHeader, available: data.available, allowFallback: data.allowFallback)
XCTAssertEqual(result, data.expectedResult)
}
}
// Tests data copied from icu4c https://github.com/unicode-org/icu/blob/main/icu4c/source/test/cintltst/cloctst.c
private let testsDataWithFallback = [
TestData("""
mt-mt, ja;q=0.76, en-us;q=0.95, en;q=0.92, en-gb;q=0.89, fr;q=0.87,\
iu-ca;q=0.84, iu;q=0.82, ja-jp;q=0.79, mt;q=0.97, de-de;q=0.74, de;q=0.71,\
es;q=0.68, it-it;q=0.66, it;q=0.63, vi-vn;q=0.61, vi;q=0.58,\
nl-nl;q=0.55, nl;q=0.53, th-th-traditional;q=0.01
""", nil, true, try! .init("mt_MT")),
TestData("ja;q=0.5, en;q=0.8, tlh", nil, true, try! .init("en")),
TestData("en-wf, de-lx;q=0.8", nil, true, try! .init("en_GB")),
TestData("mga-ie;q=0.9, sux", nil, true, nil),
TestData("""
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xx-yy;q=0.1,\
es
""", nil, true, try! .init("es")),
TestData("zh-xx;q=0.9, en;q=0.6", nil, true, try! .init("zh")),
TestData("ja-JA", nil, true, try! .init("ja")),
TestData("zh-xx;q=0.9", nil, true, try! .init("zh")),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
""", nil, true, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB
""", nil, true, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABC
""", nil, true, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
""", nil, true, nil),
]
private let testsDataWithoutFallback = [
TestData("""
mt-mt, ja;q=0.76, en-us;q=0.95, en;q=0.92, en-gb;q=0.89, fr;q=0.87,\
iu-ca;q=0.84, iu;q=0.82, ja-jp;q=0.79, mt;q=0.97, de-de;q=0.74, de;q=0.71,\
es;q=0.68, it-it;q=0.66, it;q=0.63, vi-vn;q=0.61, vi;q=0.58,\
nl-nl;q=0.55, nl;q=0.53, th-th-traditional;q=0.01
""", nil, false, try! .init("mt_MT")),
TestData("ja;q=0.5, en;q=0.8, tlh", nil, false, try! .init("en")),
TestData("en-wf, de-lx;q=0.8", nil, false, nil),
TestData("mga-ie;q=0.9, sux", nil, false, nil),
TestData("""
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01,\
xxx-yyy;q=0.01, xxx-yyy;q=0.01, xxx-yyy;q=0.01, xx-yy;q=0.1,\
es
""", nil, false, try! .init("es")),
TestData("zh-xx;q=0.9, en;q=0.6", nil, false, nil),
TestData("ja-JA", nil, false, nil),
TestData("zh-xx;q=0.9", nil, false, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
""", nil, false, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB
""", nil, false, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABC
""", nil, false, nil),
TestData("""
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
""", nil, false, nil),
]
}