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b7a95cba65
ECMA-402 requires validating user input against the EBNF grammar for Unicode locales described in TR-35: https://www.unicode.org/reports/tr35 This commit adds validators for that grammar, as well as other helper to e.g. canonicalize a locale string.
120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <LibUnicode/Locale.h>
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TEST_CASE(is_unicode_language_subtag)
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{
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EXPECT(Unicode::is_unicode_language_subtag("aa"sv));
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EXPECT(Unicode::is_unicode_language_subtag("aaa"sv));
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EXPECT(Unicode::is_unicode_language_subtag("aaaaa"sv));
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EXPECT(Unicode::is_unicode_language_subtag("aaaaaa"sv));
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EXPECT(Unicode::is_unicode_language_subtag("aaaaaaa"sv));
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EXPECT(Unicode::is_unicode_language_subtag("aaaaaaaa"sv));
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EXPECT(!Unicode::is_unicode_language_subtag(""sv));
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EXPECT(!Unicode::is_unicode_language_subtag("a"sv));
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EXPECT(!Unicode::is_unicode_language_subtag("aaaa"sv));
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EXPECT(!Unicode::is_unicode_language_subtag("aaaaaaaaa"sv));
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EXPECT(!Unicode::is_unicode_language_subtag("123"sv));
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}
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TEST_CASE(is_unicode_script_subtag)
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{
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EXPECT(Unicode::is_unicode_script_subtag("aaaa"sv));
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EXPECT(!Unicode::is_unicode_script_subtag(""sv));
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EXPECT(!Unicode::is_unicode_script_subtag("a"sv));
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EXPECT(!Unicode::is_unicode_script_subtag("aa"sv));
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EXPECT(!Unicode::is_unicode_script_subtag("aaa"sv));
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EXPECT(!Unicode::is_unicode_script_subtag("aaaaa"sv));
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EXPECT(!Unicode::is_unicode_script_subtag("1234"sv));
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}
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TEST_CASE(is_unicode_region_subtag)
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{
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EXPECT(Unicode::is_unicode_region_subtag("aa"sv));
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EXPECT(Unicode::is_unicode_region_subtag("123"sv));
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EXPECT(!Unicode::is_unicode_region_subtag(""sv));
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EXPECT(!Unicode::is_unicode_region_subtag("a"sv));
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EXPECT(!Unicode::is_unicode_region_subtag("aaa"sv));
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EXPECT(!Unicode::is_unicode_region_subtag("12"sv));
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EXPECT(!Unicode::is_unicode_region_subtag("12a"sv));
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}
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TEST_CASE(is_unicode_variant_subtag)
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{
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EXPECT(Unicode::is_unicode_variant_subtag("aaaaa"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("aaaaaa"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("aaaaaaa"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("aaaaaaaa"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("1aaa"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("12aa"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("123a"sv));
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EXPECT(Unicode::is_unicode_variant_subtag("1234"sv));
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EXPECT(!Unicode::is_unicode_variant_subtag(""sv));
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EXPECT(!Unicode::is_unicode_variant_subtag("a"sv));
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EXPECT(!Unicode::is_unicode_variant_subtag("aa"sv));
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EXPECT(!Unicode::is_unicode_variant_subtag("aaa"sv));
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EXPECT(!Unicode::is_unicode_variant_subtag("aaaa"sv));
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EXPECT(!Unicode::is_unicode_variant_subtag("aaaaaaaaa"sv));
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EXPECT(!Unicode::is_unicode_variant_subtag("a234"sv));
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}
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TEST_CASE(parse_unicode_locale_id)
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{
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auto fail = [](StringView locale) {
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auto locale_id = Unicode::parse_unicode_locale_id(locale);
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EXPECT(!locale_id.has_value());
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};
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auto pass = [](StringView locale, Optional<StringView> expected_language, Optional<StringView> expected_script, Optional<StringView> expected_region, Vector<StringView> expected_variants) {
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auto locale_id = Unicode::parse_unicode_locale_id(locale);
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VERIFY(locale_id.has_value());
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EXPECT_EQ(locale_id->language_id.language, expected_language);
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EXPECT_EQ(locale_id->language_id.script, expected_script);
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EXPECT_EQ(locale_id->language_id.region, expected_region);
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EXPECT_EQ(locale_id->language_id.variants, expected_variants);
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};
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fail("a"sv);
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fail("1234"sv);
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fail("aaa-"sv);
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fail("aaa-cc-"sv);
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fail("aaa-bbbb-cc-"sv);
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fail("aaa-bbbb-cc-123"sv);
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pass("aaa"sv, "aaa"sv, {}, {}, {});
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pass("aaa-bbbb"sv, "aaa"sv, "bbbb"sv, {}, {});
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pass("aaa-cc"sv, "aaa"sv, {}, "cc"sv, {});
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pass("aaa-bbbb-cc"sv, "aaa"sv, "bbbb"sv, "cc"sv, {});
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pass("aaa-bbbb-cc-1234"sv, "aaa"sv, "bbbb"sv, "cc"sv, { "1234"sv });
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pass("aaa-bbbb-cc-1234-5678"sv, "aaa"sv, "bbbb"sv, "cc"sv, { "1234"sv, "5678"sv });
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}
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TEST_CASE(canonicalize_unicode_locale_id)
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{
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auto test = [](StringView locale, StringView expected_canonical_locale) {
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auto locale_id = Unicode::parse_unicode_locale_id(locale);
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VERIFY(locale_id.has_value());
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auto canonical_locale = Unicode::canonicalize_unicode_locale_id(*locale_id);
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EXPECT_EQ(canonical_locale, expected_canonical_locale);
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};
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test("aaa"sv, "aaa"sv);
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test("AaA"sv, "aaa"sv);
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test("aaa-bbbb"sv, "aaa-Bbbb"sv);
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test("aaa-cc"sv, "aaa-CC"sv);
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test("aaa-bBBB-cC"sv, "aaa-Bbbb-CC"sv);
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test("aaa-bbbb-cc-1234"sv, "aaa-Bbbb-CC-1234"sv);
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test("aaa-bbbb-cc-ABCDE"sv, "aaa-Bbbb-CC-abcde"sv);
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}
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