/* 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/. */
// Regression tests for Bug 2034094: dragging from LibreOffice Calc yields
// garbled text/html and missing text/plain data on Linux/X11.
#include "gtest/gtest.h"
#include "mozilla/widget/nsGtkHtmlUtils.h"
#include "nsString.h"
#include "mozilla/Span.h"
using namespace mozilla;
using namespace mozilla::widget;
// GetHTMLCharset unit tests
TEST(GtkDragDropUtils, GetHTMLCharsetUTF8)
{
const char html[] =
R"()"
"test";
nsCString charset;
EXPECT_TRUE(GetHTMLCharset(MakeStringSpan(html), charset));
EXPECT_STREQ(charset.get(), "UTF-8");
}
TEST(GtkDragDropUtils, GetHTMLCharsetISO88591)
{
const char html[] =
R"()"
"test";
nsCString charset;
EXPECT_TRUE(GetHTMLCharset(MakeStringSpan(html), charset));
EXPECT_STREQ(charset.get(), "ISO-8859-1");
}
TEST(GtkDragDropUtils, GetHTMLCharsetNotFound)
{
const char html[] = "no charset here";
nsCString charset;
EXPECT_FALSE(GetHTMLCharset(MakeStringSpan(html), charset));
}
// DecodeHTMLData unit tests
TEST(GtkDragDropUtils, DecodeHTMLDataUTF8NonAscii)
{
// U+00E9 (e-acute) encoded as UTF-8: 0xC3 0xA9
const char html[] =
R"()"
"\xC3\xA9";
nsString decoded;
EXPECT_TRUE(DecodeHTMLData(MakeStringSpan(html), decoded));
EXPECT_NE(decoded.Find(u"é"_ns), kNotFound);
}
TEST(GtkDragDropUtils, DecodeHTMLDataFallbackUTF8)
{
const char html[] = "\xC3\xA9";
nsString decoded;
EXPECT_TRUE(DecodeHTMLData(MakeStringSpan(html), decoded));
EXPECT_NE(decoded.Find(u"é"_ns), kNotFound);
}
// Firefox prepends kHTMLMarkupPrefix when writing HTML to the clipboard or
// drag source. DecodeHTMLData must strip it so it doesn't appear in the
// output (Firefox-to-Firefox round-trip path).
TEST(GtkDragDropUtils, DecodeHTMLDataStripsFirefoxPrefix)
{
nsAutoCString html;
html.AppendLiteral(kHTMLMarkupPrefix);
html.AppendLiteral("hello");
nsString decoded;
EXPECT_TRUE(
DecodeHTMLData(Span(html.get(), html.Length()), decoded));
EXPECT_NE(decoded.Find(u"hello"_ns), kNotFound);
// The meta prefix must not appear in the decoded output.
EXPECT_EQ(decoded.Find(u"http-equiv"_ns), kNotFound);
}
// ISO-8859-1 is the encoding LibreOffice Calc can use for HTML on X11.
// e-acute (U+00E9) in ISO-8859-1 is byte 0xE9.
TEST(GtkDragDropUtils, DecodeHTMLDataISO88591)
{
const char html[] =
R"()"
"\xE9";
nsString decoded;
EXPECT_TRUE(DecodeHTMLData(MakeStringSpan(html), decoded));
EXPECT_NE(decoded.Find(u"é"_ns), kNotFound);
}
// LibreOffice Calc (and similar X11 apps) emit text/html as raw UTF-8 bytes
// with a charset meta tag that is not the Firefox-specific kHTMLMarkupPrefix.
// DecodeHTMLData must detect the charset and decode correctly without stripping
// the foreign meta tag.
TEST(GtkDragDropBug2034094, LibreOfficeShapedHTMLDecodesCorrectly)
{
// UTF-8 encoded HTML as LibreOffice Calc would send it over X11 DnD.
// U+00E9 (e-acute) is 0xC3 0xA9 in UTF-8.
const char html[] =
""
R"()"
"\xC3\xA9";
nsString decoded;
ASSERT_TRUE(DecodeHTMLData(MakeStringSpan(html), decoded));
EXPECT_NE(decoded.Find(u"é"_ns), kNotFound);
}