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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/dwrite_font_proxy_impl_win.h"
#include <dwrite.h>
#include <dwrite_2.h>
#include <memory>
#include "base/containers/contains.h"
#include "base/files/file.h"
#include "base/memory/ref_counted.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "content/public/common/content_features.h"
#include "content/public/test/browser_task_environment.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/service_manager/public/cpp/bind_source_info.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/font_unique_name_lookup/font_table_matcher.h"
#include "third_party/icu/source/common/unicode/umachine.h"
namespace content {
namespace {
// Base test class that sets up the Mojo connection to DWriteFontProxy so that
// tests can call its Mojo methods.
class DWriteFontProxyImplUnitTest : public testing::Test {
public:
DWriteFontProxyImplUnitTest()
: receiver_(&impl_, dwrite_font_proxy_.BindNewPipeAndPassReceiver()) {}
blink::mojom::DWriteFontProxy& dwrite_font_proxy() {
return *dwrite_font_proxy_;
}
base::test::TaskEnvironment task_environment_;
mojo::Remote<blink::mojom::DWriteFontProxy> dwrite_font_proxy_;
DWriteFontProxyImpl impl_;
mojo::Receiver<blink::mojom::DWriteFontProxy> receiver_;
};
TEST_F(DWriteFontProxyImplUnitTest, GetFamilyCount) {
UINT32 family_count = 0;
dwrite_font_proxy().GetFamilyCount(&family_count);
EXPECT_NE(0u, family_count); // Assume there's some fonts on the test system.
}
TEST_F(DWriteFontProxyImplUnitTest, FindFamily) {
UINT32 arial_index = 0;
dwrite_font_proxy().FindFamily(u"Arial", &arial_index);
EXPECT_NE(UINT_MAX, arial_index);
UINT32 times_index = 0;
dwrite_font_proxy().FindFamily(u"Times New Roman", ×_index);
EXPECT_NE(UINT_MAX, times_index);
EXPECT_NE(arial_index, times_index);
UINT32 unknown_index = 0;
dwrite_font_proxy().FindFamily(u"Not a font family", &unknown_index);
EXPECT_EQ(UINT_MAX, unknown_index);
}
TEST_F(DWriteFontProxyImplUnitTest, GetFamilyNames) {
UINT32 arial_index = 0;
dwrite_font_proxy().FindFamily(u"Arial", &arial_index);
std::vector<blink::mojom::DWriteStringPairPtr> names;
dwrite_font_proxy().GetFamilyNames(arial_index, &names);
EXPECT_LT(0u, names.size());
for (const auto& pair : names) {
EXPECT_FALSE(pair->first.empty());
EXPECT_FALSE(pair->second.empty());
}
}
TEST_F(DWriteFontProxyImplUnitTest, GetFamilyNamesIndexOutOfBounds) {
std::vector<blink::mojom::DWriteStringPairPtr> names;
UINT32 invalid_index = 1000000;
dwrite_font_proxy().GetFamilyNames(invalid_index, &names);
EXPECT_TRUE(names.empty());
}
TEST_F(DWriteFontProxyImplUnitTest, GetFontFileHandles) {
UINT32 arial_index = 0;
dwrite_font_proxy().FindFamily(u"Arial", &arial_index);
std::vector<base::File> handles;
dwrite_font_proxy().GetFontFileHandles(arial_index, &handles);
EXPECT_LT(0u, handles.size());
for (auto& file : handles) {
EXPECT_TRUE(file.IsValid());
EXPECT_LT(0, file.GetLength()); // Check the file exists
}
}
TEST_F(DWriteFontProxyImplUnitTest, GetFontFileHandlesIndexOutOfBounds) {
std::vector<base::File> handles;
UINT32 invalid_index = 1000000;
dwrite_font_proxy().GetFontFileHandles(invalid_index, &handles);
EXPECT_EQ(0u, handles.size());
}
TEST_F(DWriteFontProxyImplUnitTest, MapCharacter) {
blink::mojom::MapCharactersResultPtr result;
dwrite_font_proxy().MapCharacters(
u"abc",
blink::mojom::DWriteFontStyle::New(DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL),
std::u16string(), DWRITE_READING_DIRECTION_LEFT_TO_RIGHT,
std::u16string(), &result);
EXPECT_NE(UINT32_MAX, result->family_index);
EXPECT_NE(std::u16string(), result->family_name);
EXPECT_EQ(3u, result->mapped_length);
EXPECT_NE(0.0, result->scale);
EXPECT_NE(0, result->font_style->font_weight);
EXPECT_EQ(DWRITE_FONT_STYLE_NORMAL, result->font_style->font_slant);
EXPECT_NE(0, result->font_style->font_stretch);
}
TEST_F(DWriteFontProxyImplUnitTest, MapCharacterInvalidCharacter) {
blink::mojom::MapCharactersResultPtr result;
dwrite_font_proxy().MapCharacters(
u"\ufffe\uffffabc",
blink::mojom::DWriteFontStyle::New(DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL),
u"en-us", DWRITE_READING_DIRECTION_LEFT_TO_RIGHT, std::u16string(),
&result);
EXPECT_EQ(UINT32_MAX, result->family_index);
EXPECT_EQ(std::u16string(), result->family_name);
EXPECT_EQ(2u, result->mapped_length);
}
TEST_F(DWriteFontProxyImplUnitTest, MapCharacterInvalidAfterValid) {
blink::mojom::MapCharactersResultPtr result;
dwrite_font_proxy().MapCharacters(
u"abc\ufffe\uffff",
blink::mojom::DWriteFontStyle::New(DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL),
u"en-us", DWRITE_READING_DIRECTION_LEFT_TO_RIGHT, std::u16string(),
&result);
EXPECT_NE(UINT32_MAX, result->family_index);
EXPECT_NE(std::u16string(), result->family_name);
EXPECT_EQ(3u, result->mapped_length);
EXPECT_NE(0.0, result->scale);
EXPECT_NE(0, result->font_style->font_weight);
EXPECT_EQ(DWRITE_FONT_STYLE_NORMAL, result->font_style->font_slant);
EXPECT_NE(0, result->font_style->font_stretch);
}
TEST_F(DWriteFontProxyImplUnitTest, TestCustomFontFiles) {
// Override windows fonts path to force the custom font file codepath.
impl_.SetWindowsFontsPathForTesting(u"X:\\NotWindowsFonts");
UINT32 arial_index = 0;
dwrite_font_proxy().FindFamily(u"Arial", &arial_index);
std::vector<base::File> handles;
dwrite_font_proxy().GetFontFileHandles(arial_index, &handles);
EXPECT_FALSE(handles.empty());
for (auto& file : handles) {
EXPECT_TRUE(file.IsValid());
EXPECT_LT(0, file.GetLength()); // Check the file exists
}
}
} // namespace
} // namespace content
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