mirror of
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236 lines
8.2 KiB
C++
236 lines
8.2 KiB
C++
/*
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* Copyright (c) 2021, Max Wipfli <max.wipfli@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 <LibCore/File.h>
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#include <LibWeb/HTML/Parser/HTMLTokenizer.h>
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using Tokenizer = Web::HTML::HTMLTokenizer;
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using Token = Web::HTML::HTMLToken;
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#define BEGIN_ENUMERATION(tokens) \
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auto current_token = (tokens).begin(); \
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[[maybe_unused]] Token* last_token;
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#define END_ENUMERATION() \
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EXPECT(current_token.is_end());
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#define NEXT_TOKEN() \
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last_token = &*current_token; \
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++current_token;
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#define EXPECT_START_TAG_TOKEN(_tag_name, start_column, end_column) \
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EXPECT_EQ(current_token->type(), Token::Type::StartTag); \
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EXPECT_EQ(current_token->tag_name(), #_tag_name); \
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EXPECT_EQ(current_token->start_position().column, start_column); \
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EXPECT_EQ(current_token->end_position().column, end_column); \
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NEXT_TOKEN();
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#define EXPECT_END_TAG_TOKEN(_tag_name, start_column, end_column) \
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EXPECT_EQ(current_token->type(), Token::Type::EndTag); \
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EXPECT_EQ(current_token->tag_name(), #_tag_name); \
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EXPECT_EQ(current_token->start_position().column, start_column); \
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EXPECT_EQ(current_token->end_position().column, end_column); \
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NEXT_TOKEN();
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#define EXPECT_END_OF_FILE_TOKEN() \
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EXPECT_EQ(current_token->type(), Token::Type::EndOfFile); \
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NEXT_TOKEN();
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#define EXPECT_CHARACTER_TOKEN(character) \
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EXPECT_EQ(current_token->type(), Token::Type::Character); \
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EXPECT_EQ(current_token->code_point(), (u32)(character)); \
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NEXT_TOKEN();
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#define EXPECT_CHARACTER_TOKENS(string) \
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for (auto c : #string##sv) { \
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EXPECT_CHARACTER_TOKEN(c); \
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}
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#define EXPECT_COMMENT_TOKEN() \
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EXPECT_EQ(current_token->type(), Token::Type::Comment); \
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NEXT_TOKEN();
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#define EXPECT_DOCTYPE_TOKEN() \
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EXPECT_EQ(current_token->type(), Token::Type::DOCTYPE); \
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NEXT_TOKEN();
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#define EXPECT_TAG_TOKEN_ATTRIBUTE(name, attribute_value, name_start_column, name_end_column, value_start_column, value_end_column) \
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VERIFY(last_token); \
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auto name##_attr = last_token->raw_attribute(#name##_fly_string); \
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VERIFY(name##_attr.has_value()); \
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EXPECT_EQ(name##_attr->value, attribute_value); \
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EXPECT_EQ(name##_attr->name_start_position.column, name_start_column); \
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EXPECT_EQ(name##_attr->name_end_position.column, name_end_column); \
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EXPECT_EQ(name##_attr->value_start_position.column, value_start_column); \
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EXPECT_EQ(name##_attr->value_end_position.column, value_end_column);
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#define EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(count) \
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VERIFY(last_token); \
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EXPECT_EQ(last_token->attribute_count(), (size_t)(count));
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static Vector<Token> run_tokenizer(StringView input)
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{
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Vector<Token> tokens;
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Tokenizer tokenizer { input, "UTF-8"sv };
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while (true) {
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auto maybe_token = tokenizer.next_token();
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if (!maybe_token.has_value())
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break;
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tokens.append(maybe_token.release_value());
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}
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return tokens;
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}
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// FIXME: It's not very nice to rely on the format of HTMLToken::to_string() to stay the same.
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static u32 hash_tokens(Vector<Token> const& tokens)
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{
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StringBuilder builder;
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for (auto& token : tokens)
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builder.append(token.to_string());
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return (u32)builder.string_view().hash();
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}
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TEST_CASE(empty)
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{
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auto tokens = run_tokenizer(""sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(basic)
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{
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auto tokens = run_tokenizer("<html><head></head><body></body></html>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(html, 1u, 5u);
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EXPECT_START_TAG_TOKEN(head, 7u, 11u);
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EXPECT_END_TAG_TOKEN(head, 14u, 18u);
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EXPECT_START_TAG_TOKEN(body, 20u, 24u);
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EXPECT_END_TAG_TOKEN(body, 27u, 31u);
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EXPECT_END_TAG_TOKEN(html, 34u, 38u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(basic_with_text)
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{
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auto tokens = run_tokenizer("<p>This is some text.</p>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 2u);
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EXPECT_CHARACTER_TOKENS(This is some text.);
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EXPECT_END_TAG_TOKEN(p, 23u, 24u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(unquoted_attributes)
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{
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auto tokens = run_tokenizer("<p foo=bar>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 10u);
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EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(1);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo, "bar", 3u, 6u, 7u, 10u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(single_quoted_attributes)
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{
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auto tokens = run_tokenizer("<p foo='bar'>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 12u);
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EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(1);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo, "bar", 3u, 6u, 7u, 12u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(double_quoted_attributes)
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{
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auto tokens = run_tokenizer("<p foo=\"bar\">"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 12u);
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EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(1);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo, "bar", 3u, 6u, 7u, 12u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(valueless_attribute)
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{
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auto tokens = run_tokenizer("<p foo>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 6u);
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EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(1);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo, "", 3u, 6u, 0u, 0u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(multiple_attributes)
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{
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auto tokens = run_tokenizer("<p foo=\"bar\" baz=foobar biz foo2=\"bar2\">"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 39u);
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EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(4);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo, "bar", 3u, 6u, 7u, 12u);
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EXPECT_TAG_TOKEN_ATTRIBUTE(baz, "foobar", 13u, 16u, 17u, 23u);
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EXPECT_TAG_TOKEN_ATTRIBUTE(biz, "", 24u, 27u, 0u, 0u);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo2, "bar2", 28u, 32u, 33u, 39u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(character_reference_in_attribute)
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{
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auto tokens = run_tokenizer("<p foo=a&b bar='a&b' baz=\"a&b\">"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 43u);
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EXPECT_TAG_TOKEN_ATTRIBUTE_COUNT(3);
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EXPECT_TAG_TOKEN_ATTRIBUTE(foo, "a&b", 3u, 6u, 7u, 14u);
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EXPECT_TAG_TOKEN_ATTRIBUTE(bar, "a&b", 15u, 18u, 19u, 28u);
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EXPECT_TAG_TOKEN_ATTRIBUTE(baz, "a&b", 29u, 32u, 33u, 43u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(comment)
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{
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auto tokens = run_tokenizer("<p><!-- This is a comment --></p>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_START_TAG_TOKEN(p, 1u, 2u);
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EXPECT_COMMENT_TOKEN();
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EXPECT_END_TAG_TOKEN(p, 31u, 32u);
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EXPECT_END_OF_FILE_TOKEN();
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END_ENUMERATION();
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}
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TEST_CASE(doctype)
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{
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auto tokens = run_tokenizer("<!DOCTYPE html><html></html>"sv);
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BEGIN_ENUMERATION(tokens);
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EXPECT_DOCTYPE_TOKEN();
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EXPECT_START_TAG_TOKEN(html, 16u, 20u);
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EXPECT_END_TAG_TOKEN(html, 23u, 27u);
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}
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// NOTE: This relies on the format of HTMLToken::to_string() staying the same.
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// If that changes, or something is added to the test HTML, the hash needs to be adjusted.
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TEST_CASE(regression)
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{
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StringView path = "tokenizer-test.html"sv;
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auto file = MUST(Core::File::open(path, Core::File::OpenMode::Read));
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auto file_size = MUST(file->size());
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auto content = MUST(ByteBuffer::create_uninitialized(file_size));
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MUST(file->read_until_filled(content.bytes()));
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ByteString file_contents { content.bytes() };
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auto tokens = run_tokenizer(file_contents);
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u32 hash = hash_tokens(tokens);
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EXPECT_EQ(hash, 3657343287u);
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}
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