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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <map>
#include <set>
#include <string>
#include "base/command_line.h"
#include "base/macros.h"
#include "base/synchronization/lock.h"
#include "content/browser/renderer_host/sandbox_ipc_linux.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "testing/gmock/include/gmock/gmock-matchers.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/test/fontconfig_util_linux.h"
namespace content {
class LinuxIPCBrowserTest : public ContentBrowserTest,
public SandboxIPCHandler::TestObserver,
public testing::WithParamInterface<std::string> {
public:
LinuxIPCBrowserTest() {
SetUpFontConfigForTest();
SandboxIPCHandler::SetObserverForTests(this);
}
~LinuxIPCBrowserTest() override {}
protected:
void SetUpCommandLine(base::CommandLine* command_line) override {
ContentBrowserTest::SetUpCommandLine(command_line);
if (GetParam() == "no-zygote") {
command_line->AppendSwitch(switches::kNoZygote);
command_line->AppendSwitch(switches::kNoSandbox);
}
}
// Override the system fontconfig configuration with a test configuration so
// that the tested font fallback will work the same across systems.
void SetUpFontConfigForTest() {
gfx::SetUpFontconfig();
for (size_t i = 0; i < gfx::kNumSystemFontsForFontconfig; ++i) {
gfx::LoadFontIntoFontconfig(
base::FilePath(gfx::kSystemFontsForFontconfig[i]));
}
}
void OnFontOpen(int id) override {
base::AutoLock lock(lock_);
opened_fonts_.insert(font_names_[id]);
}
void OnGetFallbackFontForChar(UChar32 c, std::string name, int id) override {
base::AutoLock lock(lock_);
fallback_fonts_[c] = name;
font_names_[id] = name;
}
std::string FallbackFontName(UChar32 c) {
base::AutoLock lock(lock_);
return fallback_fonts_[c];
}
std::set<std::string> OpenedFonts() {
base::AutoLock lock(lock_);
return opened_fonts_;
}
// These variables are accessed on the IPC thread and the test thread.
// All accesses on the IPC thread should be before the renderer process
// completes navigation, and all accesses on the test thread should be after.
// However we still need a mutex for the accesses to be sequenced according to
// the C++ memory model.
base::Lock lock_;
std::map<UChar32, std::string> fallback_fonts_;
std::map<int, std::string> font_names_;
std::set<std::string> opened_fonts_;
DISALLOW_COPY_AND_ASSIGN(LinuxIPCBrowserTest);
};
// Tests that Linux IPC font fallback code runs round-trip when Zygote is
// disabled. It doesn't care what font is chosen, just that the IPC messages are
// flowing. This test assumes that U+65E5 (CJK "Sun" character) will trigger the
// font fallback codepath.
IN_PROC_BROWSER_TEST_P(LinuxIPCBrowserTest, FontFallbackIPCWorks) {
GURL test_url = GetTestUrl("font", "font_fallback.html");
EXPECT_TRUE(NavigateToURL(shell(), test_url));
EXPECT_THAT(FallbackFontName(U'\U000065E5'), testing::Ne(""));
EXPECT_THAT(OpenedFonts(),
testing::Contains(FallbackFontName(U'\U000065E5')));
}
INSTANTIATE_TEST_CASE_P(LinuxIPCBrowserTest,
LinuxIPCBrowserTest,
::testing::Values("zygote", "no-zygote"));
} // namespace
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