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firefox/dom/base/test/gtest/TestPlainTextSerializer.cpp
Daniel Baumann 5e9a113729
Adding upstream version 140.0. 
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "nsServiceManagerUtils.h"
#include "nsString.h"
#include "nsIDocumentEncoder.h"
#include "nsCRT.h"
#include "nsIParserUtils.h"
const uint32_t kDefaultWrapColumn = 72;
void ConvertBufToPlainText(nsString& aConBuf, int aFlag, uint32_t aWrapColumn) {
nsCOMPtr<nsIParserUtils> utils = do_GetService(NS_PARSERUTILS_CONTRACTID);
utils->ConvertToPlainText(aConBuf, aFlag, aWrapColumn, aConBuf);
}
// Test for ASCII with format=flowed; delsp=yes
TEST(PlainTextSerializer, ASCIIWithFlowedDelSp)
{
nsString test;
nsString result;
test.AssignLiteral(
"<html><body>"
"Firefox Firefox Firefox Firefox "
"Firefox Firefox Firefox Firefox "
"Firefox Firefox Firefox Firefox"
"</body></html>");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed |
nsIDocumentEncoder::OutputFormatDelSp,
kDefaultWrapColumn);
// create result case
result.AssignLiteral(
"Firefox Firefox Firefox Firefox "
"Firefox Firefox Firefox Firefox "
"Firefox \r\nFirefox Firefox Firefox\r\n");
ASSERT_TRUE(test.Equals(result))
<< "Wrong HTML to ASCII text serialization with format=flowed; delsp=yes";
}
TEST(PlainTextSerializer, Bug1864820)
{
nsString test(
uR"#(
<html><body>
&gt;&nbsp;&nbsp;label=master&amp;label=experimental&amp;product=chrome&amp;product=firefox&amp;product=safari&amp;aligned&amp;view=interop&amp;q=label%3Ainterop-2023-property
<blockquote>
&gt;&nbsp;&nbsp;label=master&amp;label=experimental&amp;product=chrome&amp;product=firefox&amp;product=safari&amp;aligned&amp;view=interop&amp;q=label%3Ainterop-2023-property
</blockquote>
</body></html>
)#");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputPersistNBSP |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed,
kDefaultWrapColumn);
nsString result(
uR"#(
>  label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2023-property
>  label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2023-property
)#");
result.Trim(" \n");
test.Trim(" \n");
ASSERT_TRUE(test.Equals(result))
<< "Shouldn't hang with format=flowed: " << NS_ConvertUTF16toUTF8(test).get();
}
// Test for CJK with format=flowed; delsp=yes
TEST(PlainTextSerializer, CJKWithFlowedDelSp)
{
nsString test;
nsString result;
test.AssignLiteral("<html><body>");
for (uint32_t i = 0; i < 40; i++) {
// Insert Kanji (U+5341)
test.Append(0x5341);
}
test.AppendLiteral("</body></html>");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed |
nsIDocumentEncoder::OutputFormatDelSp,
kDefaultWrapColumn);
// create result case
for (uint32_t i = 0; i < 36; i++) {
result.Append(0x5341);
}
result.AppendLiteral(" \r\n");
for (uint32_t i = 0; i < 4; i++) {
result.Append(0x5341);
}
result.AppendLiteral("\r\n");
ASSERT_TRUE(test.Equals(result))
<< "Wrong HTML to CJK text serialization with format=flowed; delsp=yes";
}
// Test for CJK with DisallowLineBreaking
TEST(PlainTextSerializer, CJKWithDisallowLineBreaking)
{
nsString test;
nsString result;
test.AssignLiteral("<html><body>");
for (uint32_t i = 0; i < 400; i++) {
// Insert Kanji (U+5341)
test.Append(0x5341);
}
test.AppendLiteral("</body></html>");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed |
nsIDocumentEncoder::OutputDisallowLineBreaking,
kDefaultWrapColumn);
// create result case
for (uint32_t i = 0; i < 400; i++) {
result.Append(0x5341);
}
result.AppendLiteral("\r\n");
ASSERT_TRUE(test.Equals(result))
<< "Wrong HTML to CJK text serialization with OutputDisallowLineBreaking";
}
// Test for Latin with DisallowLineBreaking
TEST(PlainTextSerializer, LatinWithDisallowLineBreaking)
{
nsString test;
test.AssignLiteral("<html><body>");
for (uint32_t i = 0; i < 400; i++) {
// Insert á (Latin Small Letter a with Acute) (U+00E1)
test.Append(0x00E1);
}
test.AppendLiteral("</body></html>\r\n");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed |
nsIDocumentEncoder::OutputDisallowLineBreaking,
kDefaultWrapColumn);
// Create expect case.
nsString expect;
for (uint32_t i = 0; i < 400; i++) {
expect.Append(0x00E1);
}
expect.AppendLiteral(" \r\n\r\n");
ASSERT_TRUE(test.Equals(expect))
<< "Wrong HTML to Latin text serialization with OutputDisallowLineBreaking";
}
// Test for ASCII with format=flowed; and quoted lines in preformatted span.
TEST(PlainTextSerializer, PreformatFlowedQuotes)
{
nsString test;
nsString result;
test.AssignLiteral(
"<html><body>"
"<span style=\"white-space: pre-wrap;\" _moz_quote=\"true\">"
"&gt; Firefox Firefox Firefox Firefox <br>"
"&gt; Firefox Firefox Firefox <b>Firefox</b><br>"
"&gt;<br>"
"&gt;&gt; Firefox Firefox Firefox Firefox <br>"
"&gt;&gt; Firefox Firefox Firefox Firefox<br>"
"</span></body></html>");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed,
kDefaultWrapColumn);
// create result case
result.AssignLiteral(
"> Firefox Firefox Firefox Firefox \r\n"
"> Firefox Firefox Firefox *Firefox*\r\n"
">\r\n"
">> Firefox Firefox Firefox Firefox \r\n"
">> Firefox Firefox Firefox Firefox\r\n");
ASSERT_EQ(test, result) << "Wrong HTML to ASCII text serialization "
"with format=flowed; and quoted "
"lines using OutputFormatted";
}
// Test for ASCII with format=flowed; and not using OutputFormatted.
TEST(PlainTextSerializer, OutputFormatFlowedAndWrapped)
{
nsString test;
nsString result;
test.AssignLiteral(
"<html><body>"
"<span style=\"white-space: pre-wrap;\" _moz_quote=\"true\">"
"&gt; Firefox Firefox Firefox Firefox <br>"
"&gt; Firefox Firefox Firefox <b>Firefox</b><br>"
"&gt;<br>"
"&gt;&gt; Firefox Firefox Firefox Firefox <br>"
"&gt;&gt; Firefox Firefox Firefox Firefox<br>"
"</span></body></html>");
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputWrap |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak |
nsIDocumentEncoder::OutputFormatFlowed,
kDefaultWrapColumn);
// create result case
result.AssignLiteral(
"> Firefox Firefox Firefox Firefox \r\n"
"> Firefox Firefox Firefox Firefox\r\n"
">\r\n"
">> Firefox Firefox Firefox Firefox \r\n"
">> Firefox Firefox Firefox Firefox\r\n");
ASSERT_EQ(test, result) << "Wrong HTML to ASCII text serialization "
"with format=flowed; and quoted "
"lines using OutputWrap";
}
TEST(PlainTextSerializer, PrettyPrintedHtml)
{
nsString test;
test.AppendLiteral("<html>" NS_LINEBREAK "<body>" NS_LINEBREAK
" first<br>" NS_LINEBREAK " second<br>" NS_LINEBREAK
"</body>" NS_LINEBREAK "</html>");
ConvertBufToPlainText(test, 0, kDefaultWrapColumn);
ASSERT_TRUE(test.EqualsLiteral("first" NS_LINEBREAK "second" NS_LINEBREAK))
<< "Wrong prettyprinted html to text serialization";
}
TEST(PlainTextSerializer, PreElement)
{
nsString test;
test.AppendLiteral("<html>" NS_LINEBREAK "<body>" NS_LINEBREAK
"<pre>" NS_LINEBREAK " first" NS_LINEBREAK
" second" NS_LINEBREAK "</pre>" NS_LINEBREAK
"</body>" NS_LINEBREAK "</html>");
ConvertBufToPlainText(test, 0, kDefaultWrapColumn);
ASSERT_TRUE(test.EqualsLiteral(" first" NS_LINEBREAK
" second" NS_LINEBREAK NS_LINEBREAK))
<< "Wrong prettyprinted html to text serialization";
}
TEST(PlainTextSerializer, BlockElement)
{
nsString test;
test.AppendLiteral("<html>" NS_LINEBREAK "<body>" NS_LINEBREAK
"<div>" NS_LINEBREAK " first" NS_LINEBREAK
"</div>" NS_LINEBREAK "<div>" NS_LINEBREAK
" second" NS_LINEBREAK "</div>" NS_LINEBREAK
"</body>" NS_LINEBREAK "</html>");
ConvertBufToPlainText(test, 0, kDefaultWrapColumn);
ASSERT_TRUE(test.EqualsLiteral("first" NS_LINEBREAK "second" NS_LINEBREAK))
<< "Wrong prettyprinted html to text serialization";
}
TEST(PlainTextSerializer, PreWrapElementForThunderbird)
{
// This test examines the magic pre-wrap setup that Thunderbird relies on.
nsString test;
test.AppendLiteral("<html>" NS_LINEBREAK
"<body style=\"white-space: pre-wrap;\">" NS_LINEBREAK
"<pre>" NS_LINEBREAK
" first line is too long" NS_LINEBREAK
" second line is even loooonger " NS_LINEBREAK
"</pre>" NS_LINEBREAK "</body>" NS_LINEBREAK "</html>");
const uint32_t wrapColumn = 10;
ConvertBufToPlainText(test, nsIDocumentEncoder::OutputWrap, wrapColumn);
// "\n\n first\nline is\ntoo long\n second\nline is\neven\nloooonger\n\n\n"
ASSERT_TRUE(test.EqualsLiteral(
NS_LINEBREAK NS_LINEBREAK
" first" NS_LINEBREAK "line is" NS_LINEBREAK "too long" NS_LINEBREAK
" second" NS_LINEBREAK "line is" NS_LINEBREAK "even" NS_LINEBREAK
"loooonger" NS_LINEBREAK NS_LINEBREAK NS_LINEBREAK))
<< "Wrong prettyprinted html to text serialization";
}
TEST(PlainTextSerializer, Simple)
{
nsString test;
test.AppendLiteral(
"<html><base>base</base><head><span>span</span></head>"
"<body>body</body></html>");
ConvertBufToPlainText(test, 0, kDefaultWrapColumn);
ASSERT_TRUE(test.EqualsLiteral("basespanbody"))
<< "Wrong html to text serialization";
}
TEST(PlainTextSerializer, OneHundredAndOneOL)
{
nsAutoString test;
test.AppendLiteral(
"<html>"
"<body>"
"<ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><"
"ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><"
"ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><"
"ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><"
"ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><"
"ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol><ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></ol></"
"ol></ol><li>X</li></ol>"
"</body>"
"</html>");
ConvertBufToPlainText(test, nsIDocumentEncoder::OutputFormatted,
kDefaultWrapColumn);
nsAutoString expected;
expected.AppendLiteral(" 1. X" NS_LINEBREAK);
ASSERT_EQ(test, expected);
}
TEST(PlainTextSerializer, BlockQuoteCite)
{
nsAutoString test;
test.AppendLiteral(u"<blockquote type=cite>hello world</blockquote>");
const uint32_t wrapColumn = 10;
ConvertBufToPlainText(test,
nsIDocumentEncoder::OutputFormatted |
nsIDocumentEncoder::OutputFormatFlowed |
nsIDocumentEncoder::OutputCRLineBreak |
nsIDocumentEncoder::OutputLFLineBreak,
wrapColumn);
constexpr auto expect = NS_LITERAL_STRING_FROM_CSTRING(
"> hello \r\n"
"> world\r\n");
ASSERT_TRUE(test.Equals(expect))
<< "Wrong blockquote cite to text serialization";
}
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