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139 lines
3.5 KiB
C++
139 lines
3.5 KiB
C++
/* See the end of this file for copyright and license terms. */
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#include <catch2/catch.hpp>
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#include <errno.h>
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#include <neo.h>
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#include <neo/utf.h>
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TEST_CASE( "utf8_ncheck: ASCII string", "[string/utf.c]" )
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{
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error err;
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usize len = utf8_ncheck("i'm gay,,,", 10, &err);
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REQUIRE( len == 10 );
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REQUIRE( errnum(&err) == 0 );
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REQUIRE( errmsg(&err) == nil );
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}
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TEST_CASE( "utf8_ncheck: String with 2-byte UTF-8 sequence", "[string/utf.c]" )
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{
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error err;
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/* U+03B1 Greek Smol Letter Alpha */
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usize len = utf8_ncheck("i'm g\xce\xb1y,,,", 11, &err);
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REQUIRE( len == 10 );
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REQUIRE( errnum(&err) == 0 );
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REQUIRE( errmsg(&err) == nil );
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}
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TEST_CASE( "utf8_ncheck: String with 3-byte UTF-8 sequence", "[string/utf.c]" )
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{
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error err;
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/* U+3042 Hiragana Letter A */
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usize len = utf8_ncheck("i'm g\xe3\x81\x82y,,,", 12, &err);
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REQUIRE( len == 10 );
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REQUIRE( errnum(&err) == 0 );
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REQUIRE( errmsg(&err) == nil );
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}
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TEST_CASE( "utf8_ncheck: String with 4-byte UTF-8 sequence", "[string/utf.c]" )
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{
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error err;
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/* U+1F97A The Bottom Emoji(TM) */
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usize len = utf8_ncheck("i'm gay\xf0\x9f\xa5\xba,,,", 14, &err);
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REQUIRE( len == 11 );
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REQUIRE( errnum(&err) == 0 );
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REQUIRE( errmsg(&err) == nil );
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}
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TEST_CASE( "utf8_ncheck: Don't overread", "[string/utf.c]" )
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{
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error err;
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usize len = utf8_ncheck("i'm gay,,,", 8, &err);
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REQUIRE( len == 8 );
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REQUIRE( errnum(&err) == 0 );
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REQUIRE( errmsg(&err) == nil );
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}
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TEST_CASE( "utf8_ncheck: Error on malformed sequence start", "[string/utf.c]" )
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{
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error err;
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utf8_ncheck("\xff", 1, &err);
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nstr_t *expected = nstr("Illegal UTF-8 sequence start byte: 0xff", nil);
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nstr_t *actual = errmsg(&err);
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REQUIRE( errnum(&err) == EINVAL );
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REQUIRE( nstreq(expected, actual, nil) );
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errput(&err);
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}
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TEST_CASE( "utf8_ncheck: Error on wrong second byte", "[string/utf.c]" )
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{
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error err;
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utf8_ncheck("\xce\xff", 2, &err);
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nstr_t *expected = nstr("Byte 2 in UTF-8 sequence invalid: 0xff", nil);
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nstr_t *actual = errmsg(&err);
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REQUIRE( errnum(&err) == EINVAL );
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REQUIRE( nstreq(expected, actual, nil) );
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errput(&err);
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}
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TEST_CASE( "utf8_ncheck: Error on wrong third byte", "[string/utf.c]" )
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{
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error err;
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utf8_ncheck("\xe3\x81\xff", 3, &err);
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nstr_t *expected = nstr("Byte 3 in UTF-8 sequence invalid: 0xff", nil);
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nstr_t *actual = errmsg(&err);
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REQUIRE( errnum(&err) == EINVAL );
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REQUIRE( nstreq(expected, actual, nil) );
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errput(&err);
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}
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TEST_CASE( "utf8_ncheck: Error on wrong fourth byte", "[string/utf.c]" )
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{
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error err;
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utf8_ncheck("\xf0\x9f\xa5\xff", 4, &err);
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nstr_t *expected = nstr("Byte 4 in UTF-8 sequence invalid: 0xff", nil);
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nstr_t *actual = errmsg(&err);
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REQUIRE( errnum(&err) == EINVAL );
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REQUIRE( nstreq(expected, actual, nil) );
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errput(&err);
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}
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TEST_CASE( "utf8_ncheck: Error on non canonical encoding", "[string/utf.c]" )
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{
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error err;
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utf8_ncheck("\xf0\x80\x80\xa0", 4, &err);
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nstr_t *expected = nstr("Non canonical UTF-8 encoding: 1 byte character stored in 4 bytes", nil);
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nstr_t *actual = errmsg(&err);
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REQUIRE( errnum(&err) == EINVAL );
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REQUIRE( nstreq(expected, actual, nil) );
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errput(&err);
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}
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/*
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* This file is part of libneo.
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* Copyright (c) 2021 Fefie <owo@fef.moe>.
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*
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* libneo is non-violent software: you may only use, redistribute,
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* and/or modify it under the terms of the CNPLv6+ as found in
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* the LICENSE file in the source code root directory or at
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* <https://git.pixie.town/thufie/CNPL>.
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*
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* libneo comes with ABSOLUTELY NO WARRANTY, to the extent
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* permitted by applicable law. See the CNPLv6+ for details.
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*/
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