extensions/browser/api/system_cpu/system_cpu_apitest.cc

// Copyright 2013 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 "extensions/browser/api/system_cpu/cpu_info_provider.h"
#include "extensions/shell/test/shell_apitest.h"

namespace extensions {

using api::system_cpu::CpuInfo;

class MockCpuInfoProviderImpl : public CpuInfoProvider {
 public:
  MockCpuInfoProviderImpl() {}

  bool QueryInfo() override {
    info_.num_of_processors = 4;
    info_.arch_name = "x86";
    info_.model_name = "unknown";

    info_.features.clear();
    info_.features.push_back("mmx");
    info_.features.push_back("avx");

    info_.processors.clear();
    info_.processors.push_back(api::system_cpu::ProcessorInfo());
    info_.processors[0].usage.kernel = 1;
    info_.processors[0].usage.user = 2;
    info_.processors[0].usage.idle = 3;
    info_.processors[0].usage.total = 6;

    // The fractional part of these values should be exactly represented as
    // floating points to avoid rounding errors.
    info_.temperatures = {30.125, 40.0625};
    return true;
  }

 private:
  ~MockCpuInfoProviderImpl() override {}
};

class SystemCpuApiTest : public ShellApiTest {
 public:
  SystemCpuApiTest() {}
  ~SystemCpuApiTest() override {}

  void SetUpInProcessBrowserTestFixture() override {
    ShellApiTest::SetUpInProcessBrowserTestFixture();
  }
};

IN_PROC_BROWSER_TEST_F(SystemCpuApiTest, Cpu) {
  CpuInfoProvider* provider = new MockCpuInfoProviderImpl();
  // The provider is owned by the single CpuInfoProvider instance.
  CpuInfoProvider::InitializeForTesting(provider);
  ASSERT_TRUE(RunAppTest("system/cpu")) << message_;
}

}  // namespace extensions