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Linq-To-XML Style of Node Creation for C++

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12 Apr 2016Ms-PL11 min read 43.5K   501   29  
Linq-To-XML Node Creation for Native C++
 
using System;
using System.Xml;
using System.Text;
using System.IO;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Elmax;

namespace TestNetElmax
{
	[TestClass]
	public class UnitTestVoidGetter
	{
		private bool CreateAndInitDom(out XmlDocument doc)
		{
			doc = new XmlDocument();
			if (doc!=null)
			{
				XmlProcessingInstruction pi = doc.CreateProcessingInstruction("xml", " version='1.0' encoding='UTF-8'");
				doc.AppendChild(pi);
			}
			else
				return false;
			return true;
		}
		[TestMethod]
        public void NetGetVoidDateTime()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				DateTime dd = new DateTime(2006, 7, 23, 9, 0, 23);
				Assert.IsTrue(elem.Exists);
				DateTime dd3 = elem["dd"].GetDateTime(dd);

				Assert.AreEqual(dd.Year, dd3.Year);
				Assert.AreEqual(dd.Month, dd3.Month);
				Assert.AreEqual(dd.Day, dd3.Day);
				Assert.AreEqual(dd.Hour, dd3.Hour);
				Assert.AreEqual(dd.Minute, dd3.Minute);
				Assert.AreEqual(dd.Second, dd3.Second);
			}
		}
		[TestMethod]
        public void NetGetVoidDate()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				DateTime dd = new DateTime(2010, 10, 1);
				Assert.IsTrue(elem.Exists);
				DateTime dd3 = elem["dd"].GetDate(dd);

				Assert.AreEqual(dd.Year, dd3.Year);
				Assert.AreEqual(dd.Month, dd3.Month);
				Assert.AreEqual(dd.Day, dd3.Day);
			}
		}
		[TestMethod]
        public void NetGetVoidGuid()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				Guid dd = Guid.NewGuid();
				Assert.IsTrue(elem.Exists);
				Guid dd3 = elem["dd"].GetGuid(dd);

                Assert.AreEqual(dd.ToString(), dd3.ToString());
			}
		}
		[TestMethod]
        public void NetGetVoidBoolean()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				bool dd = false;
				Assert.IsTrue(elem.Exists);

				bool dd2 = elem["dd"].GetBool(false);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidLong()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				long dd = 14000000000L;
				Assert.IsTrue(elem.Exists);

				long dd2 = elem["dd"].GetLong(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidInt()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				int dd = 2000000000;
				Assert.IsTrue(elem.Exists);

				int dd2 = elem["dd"].GetInt(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidShort()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				short dd = 32000;
				Assert.IsTrue(elem.Exists);

				short dd2 = elem["dd"].GetShort(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidSByte()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				sbyte dd = 127;
				Assert.IsTrue(elem.Exists);

				sbyte dd2 = elem["dd"].GetSByte(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidULong()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				ulong dd = 14000000000UL;
				Assert.IsTrue(elem.Exists);

				ulong dd2 = elem["dd"].GetULong(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidUInt()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				uint dd = 4000000000;
				Assert.IsTrue(elem.Exists);

				uint dd2 = elem["dd"].GetUInt(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidUShort()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				ushort dd = 65000;
				Assert.IsTrue(elem.Exists);

				ushort dd2 = elem["dd"].GetUShort(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidByte()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				byte dd = 255;
				Assert.IsTrue(elem.Exists);

				byte dd2 = elem["dd"].GetByte(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidString()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				System.String dd = "ABCD";
				Assert.IsTrue(elem.Exists);

				System.String dd2 = elem["dd"].GetString(dd);

				System.String s1 = dd;
				System.String s2 = dd2;

				Assert.AreEqual(s1, s2);
			}
		}
		[TestMethod]
        public void NetGetVoidDouble()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				double dd = 123.0;
				Assert.IsTrue(elem.Exists);

				double dd2 = elem["dd"].GetDouble(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
		[TestMethod]
        public void NetGetVoidFloat()
		{
			XmlDocument doc;
			bool created = CreateAndInitDom(out doc);
			if (created)
			{
				Element root = new Element();
				root.SetDomDoc(doc);

				Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
				float dd = 123.0f;
				Assert.IsTrue(elem.Exists);

				float dd2 = elem["dd"].GetFloat(dd);

				Assert.AreEqual(dd, dd2);
			}
		}
        [TestMethod]
        public void NetGetVoidHex()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa"]["bb"]["cc"].CreateNew(null);
                Assert.IsTrue(elem.Exists);

                uint ans = elem["dd"].ReadHex(0xee);

                Assert.AreEqual((uint)(0xee), ans);
            }
        }
        [TestMethod]
        public void NetGetEmptyDocSelectSingleNode()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa/bb/cc"].CreateNew(null);
                int dd = 100;
                Assert.IsTrue(elem.Exists);
                elem.SetInt(dd);

                Element elem2 = root["aa/bb/dd"].CreateNew(null);
                dd = 120;
                Assert.IsTrue(elem2.Exists);
                elem2.SetInt(dd);

                Document elmaxDoc = new Document(doc);
                Element singleNode = elmaxDoc.SelectSingleNode("//ee");

                Assert.AreEqual(false, singleNode.Exists);
            }
        }
        [TestMethod]
        public void NetGetEmptyDocSelectNodes()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa/bb/cc"].CreateNew(null);
                int dd = 100;
                Assert.IsTrue(elem.Exists);
                elem["dd"].SetInt(dd);

                Element elem2 = root["aa/bb/cc"].CreateNew(null);
                dd = 120;
                Assert.IsTrue(elem2.Exists);
                elem2["dd"].SetInt(dd);

                Element elem3 = root["aa/bb/cc"].CreateNew(null);
                dd = 50;
                Assert.IsTrue(elem3.Exists);
                elem3["dd"].SetInt(dd);

                Document elmaxDoc = new Document(doc);
                List<Element> nodes = elmaxDoc.SelectNodes("//cc[dd>200]");

                Assert.AreEqual(0, nodes.Count);
            }
        }
        [TestMethod]
        public void NetTestSelectSingleNode()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa/bb/cc"].CreateNew(null);
                int dd = 100;
                Assert.IsTrue(elem.Exists);
                elem.SetInt(dd);

                Element elem2 = root["aa/bb/dd"].CreateNew(null);
                dd = 120;
                Assert.IsTrue(elem2.Exists);
                elem2.SetInt(dd);

                Element singleNode = root.SelectSingleNode("//ee");

                Assert.AreEqual(false, singleNode.Exists);
            }
        }
        [TestMethod]
        public void NetTestSelectNodes()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa/bb/cc"].CreateNew(null);
                int dd = 100;
                Assert.IsTrue(elem.Exists);
                elem["dd"].SetInt(dd);

                Element elem2 = root["aa/bb/cc"].CreateNew(null);
                dd = 120;
                Assert.IsTrue(elem2.Exists);
                elem2["dd"].SetInt(dd);

                Element elem3 = root["aa/bb/cc"].CreateNew(null);
                dd = 50;
                Assert.IsTrue(elem3.Exists);
                elem3["dd"].SetInt(dd);

                List<Element> nodes = root.SelectNodes("//cc[dd>200]");

                Assert.AreEqual(0, nodes.Count);
            }
        }
        [TestMethod]
        public void NetGetEmptyDocGetElementsByTagName()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa/bb/cc"].CreateNew(null);
                int dd = 100;
                Assert.IsTrue(elem.Exists);
                elem["dd"].SetInt(dd);

                Element elem2 = root["aa/bb/cc"].CreateNew(null);
                dd = 120;
                Assert.IsTrue(elem2.Exists);
                elem2["dd"].SetInt(dd);

                Element elem3 = root["aa/bb/cc"].CreateNew(null);
                dd = 50;
                Assert.IsTrue(elem3.Exists);
                elem3["dd"].SetInt(dd);

                Document elmaxDoc = new Document(doc);
                List<Element> nodes = elmaxDoc.GetElementsByTagName("ee");

                Assert.AreEqual(0, nodes.Count);
            }
        }
        [TestMethod]
        public void NetGetEmptyDocGetElementsByTagNameWithNS()
        {
            XmlDocument doc;
            bool created = CreateAndInitDom(out doc);
            if (created)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element elem = root["aa/bb/cc"].CreateNew("http://www.yahoo.com");
                int dd = 100;
                Assert.IsTrue(elem.Exists);
                elem["dd"].CreateNew("http://www.yahoo.com").SetInt(dd);

                Element elem2 = root["aa/bb/cc"].CreateNew("http://www.yahoo.com");
                dd = 120;
                Assert.IsTrue(elem2.Exists);
                elem2["dd"].CreateNew("http://www.yahoo.com").SetInt(dd);

                Element elem3 = root["aa/bb/cc"].CreateNew("http://www.microsoft.com");
                dd = 50;
                Assert.IsTrue(elem3.Exists);
                elem3["dd"].CreateNew("http://www.microsoft.com").SetInt(dd);

                Document elmaxDoc = new Document(doc);
                List<Element> nodes = elmaxDoc.GetElementsByTagName("ee", "http://www.yahoo.com");

                Assert.AreEqual(0, nodes.Count);
            }
        }
        [TestMethod]
        public void NetGetEmptyDocGetElementById()
        {
            string dtd1 = "<!DOCTYPE root [<!ELEMENT root ANY><!ELEMENT Person ANY>";
            string dtd2 = "<!ELEMENT Customer EMPTY><!ATTLIST Person SSN ID #REQUIRED>";
            string dtd3 = "<!ATTLIST Customer id IDREF #REQUIRED >]>";
            string xml1 = "<root><Person SSN='A111' Name='Fred'/><Person SSN='A222' Name='Tom'/>";
            string xml2 = "<Customer id='A111'/><Customer id='A222334444'/></root>";

            string xml = dtd1 + dtd2 + dtd3 + xml1 + xml2;

            XmlDocument doc = new XmlDocument();
            doc.LoadXml(xml);

            Document elmaxDoc = new Document(doc);

            Element elem = elmaxDoc.GetElementById("A333");

            Assert.AreEqual(false, elem.Exists);
        }
	}
}

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This article, along with any associated source code and files, is licensed under The Microsoft Public License (Ms-PL)


Written By
Shao Voon Wong
Software Developer (Senior)
Singapore Singapore
Shao Voon is from Singapore. His interest lies primarily in computer graphics, software optimization, concurrency, security, and Agile methodologies.

In recent years, he shifted focus to software safety research. His hobby is writing a free C++ DirectX photo slideshow application which can be viewed here.

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Posted 12 Apr 2016

Article Copyright 2016 by Shao Voon Wong
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