DotNet中获取系统信息（二）

    首次使用TDD，还有很多不大清楚，敬请高人指教！
    单元测试代码如下：

using System;
using System.Net;
using NUnit.Framework;

namespace SystemInfomation
{
    /**//// <summary>
    /// Summary description for GetInfoFixture.
    /// </summary>
    [TestFixture]
    public class SystemInfomationFixture
    {
        private const string OS_VERION = "Microsoft Windows NT 5.2.3790.0";
        private const string MACHINE_NAME = "VC";
        private const string USER_NAME = "Vincent";
        private const string BOOT_MODE = "Normal";
        private const string LOGICAL_DRIVERS = @"A:\;C:\;D:\;E:\;F:\;G:\;H:\;I:\;J:\;K:\;L:\;M:\;O:\;";
        private const string IP_ADDR = "192.168.0.10 192.168.35.1 192.168.188.1 ";
        private const string DOMAIN_NAME = "VC";
        private const string SYSTEM_DIR = @"C:\Windows\System32";
        private const string TEMP_DIR = @"C:\DOCUME~1\VINCENT\LOCALS~1\TEMP";
        private const string FX_VVERSION = "1.1.4322.573";
        private const string PROCESSOR_NAME = "AMD Athlon(tm) XP 1600+";
        private const string PROCESSOR_IDENTIFIER = "x86 Family 6 Model 6 Stepping 2";
        private const string PROCESSOR_FREQUENCY = "1405 MHz";
        private const string BIOS_IDENTIFIER = "AT/AT COMPATIBLE";
        private const string SYSTEM_BISO_VERSION = "AMIINT - 10";
        private const string VIDEO_BISO_VERSION = "Version 3.11.01.24.00 ";
        private const string VIDEO_BISO_DATE = "10/31/01";
        private const string NETWORK_CARDS = "Realtek RTL8139 Family PCI Fast Ethernet NIC";

        private SystemInfomation info;

        public SystemInfomationFixture()
        {
            //
            // TODO: Add constructor logic here
            //
        }

        [SetUp]
        public void Init()
        {
            info = new SystemInfomation();
        }

        [Test]
        public void testGetOSVersion()
        {
            Console.Out.WriteLine(info.GetOSVersion());
            Assert.AreEqual(OS_VERION, info.GetOSVersion());
        }

        [Test]
        public void testGetMachineName()
        {
            Console.Out.WriteLine(info.GetMachineName());
            Assert.AreEqual(MACHINE_NAME, info.GetMachineName());
        }

        [Test]
        public void testGetBootMode()
        {
            Console.Out.WriteLine(info.GetBootMode());
            Assert.AreEqual(BOOT_MODE, info.GetBootMode());
        }

        [Test]
        public void testGetUserName()
        {
            Console.Out.WriteLine(info.GetUserName());
            Assert.AreEqual(USER_NAME, info.GetUserName());
        }

        [Test]
        public void testGetLogicalDrives()
        {
            string drivers = "";
            foreach (string drive in info.GetLogicalDrives())
            {
                drivers += drive + ";";
            }
            Console.WriteLine(drivers);
            Assert.AreEqual(LOGICAL_DRIVERS, drivers);
        }

        [Test]
        public void testGetIPAddr()
        {
            string ip = "";
            IPAddress[] ipAddress= info.GetIPAddr();
            foreach (IPAddress address in ipAddress)
            {
                Console.Out.WriteLine(address.ToString());
                ip += address.ToString() + " ";
            }
            Assert.AreEqual(IP_ADDR, ip);
        }

        [Test]
        public void testGetDomainName()
        {
            Console.Out.WriteLine(info.GetDomainName());
            Assert.AreEqual(DOMAIN_NAME, info.GetDomainName());
        }

        [Test]
        public void testGetUsedMemory()
        {
            Console.Out.WriteLine(info.GetUsedMemory());
            Assert.IsNotNull(info.GetUsedMemory());
        }

        [Test]
        public void testGetSystemDirectory()
        {
            Console.Out.WriteLine(info.GetSystemDirectory());
            Assert.AreEqual(SYSTEM_DIR.ToUpper(), info.GetSystemDirectory().ToUpper());
        }

        [Test]
        public void testGetTempDirectory()
        {
            Console.Out.WriteLine(info.GetTempDirectory());
            Assert.AreEqual(TEMP_DIR.ToUpper(), info.GetTempDirectory().ToUpper());
        }

        [Test]
        public void testGetFxVersion()
        {
            Console.Out.WriteLine(info.GetFxVersion());
            Assert.AreEqual(FX_VVERSION, info.GetFxVersion());
        }

        [Test]
        public void testGetOSRunnedTime()
        {
            RunnedTime runnedTime = info.GetOSRunnedTime();
            string time = runnedTime.hour + " hour " + 
                runnedTime.minute + " minute " + runnedTime.second + " second";
            Console.WriteLine(time);            
            Assert.IsNotNull(time);
        }

        [Test]
        public void testGetProcessorName()
        {
            Console.WriteLine(info.GetProcessorName()[0]);
            Assert.AreEqual(PROCESSOR_NAME, info.GetProcessorName()[0]);
        }

        [Test]
        public void testGetProcessorIdentifier()
        {
            Console.WriteLine(info.GetProcessorIdentifier()[0]);
            Assert.AreEqual(PROCESSOR_IDENTIFIER, info.GetProcessorIdentifier()[0]);
        }

        [Test]
        public void testGetProcessorFrequency()
        {
            Console.WriteLine(info.GetProcessorFrequency()[0]);
            Assert.AreEqual(PROCESSOR_FREQUENCY, info.GetProcessorFrequency()[0]);
        }

        [Test]
        public void testGetBiosIdentifier()
        {
            Console.Out.WriteLine(info.GetBiosIdentifier());
            Assert.AreEqual(BIOS_IDENTIFIER, info.GetBiosIdentifier());
     &#