headless/test/headless_test_launcher.cc

// Copyright 2016 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 <memory>

#include "base/bind.h"
#include "base/macros.h"
#include "base/sys_info.h"
#include "content/public/test/content_test_suite_base.h"
#include "content/public/test/test_launcher.h"
#include "headless/lib/browser/headless_browser_impl.h"
#include "headless/lib/headless_content_main_delegate.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace headless {
namespace {

class HeadlessBrowserImplForTest : public HeadlessBrowserImpl {
 public:
  explicit HeadlessBrowserImplForTest(HeadlessBrowser::Options options)
      : HeadlessBrowserImpl(base::Bind(&HeadlessBrowserImplForTest::OnStart,
                                       base::Unretained(this)),
                            std::move(options)) {}

  void OnStart(HeadlessBrowser* browser) { EXPECT_EQ(this, browser); }

 private:
  DISALLOW_COPY_AND_ASSIGN(HeadlessBrowserImplForTest);
};

class HeadlessTestLauncherDelegate : public content::TestLauncherDelegate {
 public:
  HeadlessTestLauncherDelegate() {}
  ~HeadlessTestLauncherDelegate() override {}

  // content::TestLauncherDelegate implementation:
  int RunTestSuite(int argc, char** argv) override {
    return base::TestSuite(argc, argv).Run();
  }

  bool AdjustChildProcessCommandLine(
      base::CommandLine* command_line,
      const base::FilePath& temp_data_dir) override {
    return true;
  }

 protected:
  content::ContentMainDelegate* CreateContentMainDelegate() override {
    // Use HeadlessBrowserTest::SetBrowserOptions to override these defaults.
    HeadlessBrowser::Options::Builder options_builder;
    std::unique_ptr<HeadlessBrowserImpl> browser(
        new HeadlessBrowserImplForTest(options_builder.Build()));
    return new HeadlessContentMainDelegate(std::move(browser));
  }

 private:
  DISALLOW_COPY_AND_ASSIGN(HeadlessTestLauncherDelegate);
};

}  // namespace
}  // namespace headless

int main(int argc, char** argv) {
  int default_jobs = std::max(1, base::SysInfo::NumberOfProcessors() / 2);
  headless::HeadlessTestLauncherDelegate launcher_delegate;
  return LaunchTests(&launcher_delegate, default_jobs, argc, argv);
}