adb5f7e485
For example, with this input: ```xml <C>]]> ``` After seeing `<C>`, the parser will start parsing the content of the element. The content parser will then parse any character data it sees. The character parser would see the first two `]]` and consume them. Then, it would see the `>` and set the state machine to say we have seen this, but it did _not_ consume it and would instead tell GenericLexer that it should stop consuming characters. Therefore, we only consumed 2 characters. Then, it would see that we are in the state where we've seen the full `]]>` and try to take off three characters from the end of the consumed input when we only have 2 characters, causing an assertion failure as we are asking to take off more characters than there really is.
22 lines
1.2 KiB
C++
22 lines
1.2 KiB
C++
/*
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* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
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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 <LibXML/Parser/Parser.h>
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TEST_CASE(char_data_ending)
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{
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EXPECT_NO_CRASH("parsing character data ending by itself should not crash", [] {
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// After seeing `<C>`, the parser will start parsing the content of the element. The content parser will then parse any character data it sees.
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// The character parser would see the first two `]]` and consume them. Then, it would see the `>` and set the state machine to say we have seen this,
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// but it did _not_ consume it and would instead tell GenericLexer that it should stop consuming characters. Therefore, we only consumed 2 characters.
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// Then, it would see that we are in the state where we've seen the full `]]>` and try to take off three characters from the end of the consumed
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// input when we only have 2 characters, causing an assertion failure as we are asking to take off more characters than there really is.
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XML::Parser parser("<C>]]>");
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(void)parser.parse();
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return Test::Crash::Failure::DidNotCrash;
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});
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}
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