Util/test/Util.Tests/Helpers/XmlTest.cs

using System.Linq;
using Util.Helpers;
using Xunit;
using Xunit.Abstractions;

namespace Util.Tests.Helpers {
    /// <summary>
    /// Xml操作测试
    /// </summary>
    public class XmlTest {
        /// <summary>
        /// 输出工具
        /// </summary>
        private readonly ITestOutputHelper _output;
        /// <summary>
        /// Xml操作
        /// </summary>
        private readonly Xml _xml;

        /// <summary>
        /// 测试初始化
        /// </summary>
        public XmlTest( ITestOutputHelper output ) {
            _output = output;
            _xml = new Xml();
        }

        /// <summary>
        /// 测试添加节点
        /// </summary>
        [Fact]
        public void TestAddNode_1() {
            //结果
            var result = new String();
            result.Append( "<xml>" );
            result.Append( "<a>1</a>" );
            result.Append( "</xml>" );

            //操作
            _xml.AddNode( "a", "1" );

            //验证
            Assert.Equal( result.ToString(), _xml.ToString() );

            //输出结果
            _output.WriteLine( _xml.ToString() );
        }

        /// <summary>
        /// 测试添加节点 - 父子节点
        /// </summary>
        [Fact]
        public void TestAddNode_2() {
            //结果
            var result = new String();
            result.Append( "<xml>" );
            result.Append( "<a>" );
            result.Append( "<b>2</b>" );
            result.Append( "</a>" );
            result.Append( "</xml>" );

            //操作
            var parent = _xml.AddNode( "a" );
            _xml.AddNode( "b", "2", parent );

            //验证
            Assert.Equal( result.ToString(), _xml.ToString() );

            //输出结果
            _output.WriteLine( _xml.ToString() );
        }

        /// <summary>
        /// 测试添加注释类型节点
        /// </summary>
        [Fact]
        public void TestAddCDataNode_1() {
            //结果
            var result = new String();
            result.Append( "<xml>" );
            result.Append( "<![CDATA[1]]>" );
            result.Append( "</xml>" );

            //操作
            _xml.AddCDataNode( "1" );

            //验证
            Assert.Equal( result.ToString(), _xml.ToString() );

            //输出结果
            _output.WriteLine( _xml.ToString() );
        }

        /// <summary>
        /// 测试添加注释类型节点 - 父节点
        /// </summary>
        [Fact]
        public void TestAddCDataNode_2() {
            //结果
            var result = new String();
            result.Append( "<xml>" );
            result.Append( "<a>" );
            result.Append( "<![CDATA[1]]>" );
            result.Append( "</a>" );
            result.Append( "</xml>" );

            //操作
            var parent = _xml.AddNode( "a" );
            _xml.AddCDataNode( "1", parent );

            //验证
            Assert.Equal( result.ToString(), _xml.ToString() );

            //输出结果
            _output.WriteLine( _xml.ToString() );
        }

        /// <summary>
        /// 测试添加注释类型节点 - 父节点 - 通过设置字符串父节点名称
        /// </summary>
        [Fact]
        public void TestAddCDataNode_3() {
            //结果
            var result = new String();
            result.Append( "<xml>" );
            result.Append( "<a>" );
            result.Append( "<![CDATA[1]]>" );
            result.Append( "</a>" );
            result.Append( "</xml>" );

            //操作
            _xml.AddCDataNode( "1", "a" );

            //验证
            Assert.Equal( result.ToString(), _xml.ToString() );

            //输出结果
            _output.WriteLine( _xml.ToString() );
        }

        /// <summary>
        /// xml字符串转换为XElement列表
        /// </summary>
        [Fact]
        public void TestToElements_1() {
            //输入
            var input = new String();
            input.Append( "<xml>" );
            input.Append( "<a>1</a>" );
            input.Append( "<b>2</b>" );
            input.Append( "</xml>" );

            //操作
            var elements = Xml.ToElements( input.ToString() );
            var element = elements.FirstOrDefault( t => t.Name == "b");

            //验证
            Assert.Equal( "2",element?.Value );
        }

        /// <summary>
        /// xml字符串转换为XElement列表
        /// </summary>
        [Fact]
        public void TestToElements_2() {
            //输入
            var input = new String();
            input.Append( "<xml>" );
            input.Append( "<a>1</a>" );
            input.Append( "<b>2</b>" );
            input.Append( "<c>" );
            input.Append( "<![CDATA[3]]>" );
            input.Append( "</c>" );
            input.Append( "</xml>" );

            //操作
            var elements = Xml.ToElements( input.ToString() );
            var element = elements.FirstOrDefault( t => t?.Name == "c" );

            //验证
            Assert.Equal( "3", element?.Value );
        }
    }
}