添加用户和Mqtt的仓储文件，添加的对Excel进行导入导出功能，并完成单元测试

PMSWPF.Tests/ExcelHelperTests.cs

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+
+using NUnit.Framework;
+using PMSWPF.Helper;
+using System.Collections.Generic;
+using System.Data;
+using System.IO;
+
+namespace PMSWPF.Tests
+{
+    [TestFixture]
+    public class ExcelHelperTests
+    {
+        private string _testFilePath;
+
+        [SetUp]
+        public void Setup()
+        {
+            // Create a temporary file for testing
+            // _testFilePath = Path.Combine(Path.GetTempPath(), "test.xlsx");
+            _testFilePath =  "e:/test.xlsx";
+        }
+
+        [TearDown]
+        public void TearDown()
+        {
+            // Clean up the temporary file
+            if (File.Exists(_testFilePath))
+            {
+                File.Delete(_testFilePath);
+            }
+        }
+
+        [Test]
+        public void ExportToExcel_WithListOfObjects_CreatesFile()
+        {
+            // Arrange
+            var data = new List<TestData>
+            {
+                new TestData { Id = 1, Name = "Test1" },
+                new TestData { Id = 2, Name = "Test2" }
+            };
+
+            // Act
+            ExcelHelper.ExportToExcel(data, _testFilePath);
+
+            // Assert
+            Assert.IsTrue(File.Exists(_testFilePath));
+        }
+
+        [Test]
+        public void ExportToExcel_WithDataTable_CreatesFile()
+        {
+            // Arrange
+            var dataTable = new DataTable();
+            dataTable.Columns.Add("Id", typeof(int));
+            dataTable.Columns.Add("Name", typeof(string));
+            dataTable.Rows.Add(1, "Test1");
+            dataTable.Rows.Add(2, "Test2");
+
+            // Act
+            ExcelHelper.ExportToExcel(dataTable, _testFilePath);
+
+            // Assert
+            Assert.IsTrue(File.Exists(_testFilePath));
+        }
+
+        [Test]
+        public void ImportFromExcel_ToDataTable_ReturnsCorrectData()
+        {
+            // Arrange
+            var dataTable = new DataTable();
+            dataTable.Columns.Add("Id", typeof(int));
+            dataTable.Columns.Add("Name", typeof(string));
+            dataTable.Rows.Add(1, "Test1");
+            dataTable.Rows.Add(2, "Test2");
+            ExcelHelper.ExportToExcel(dataTable, _testFilePath);
+
+            // Act
+            var result = ExcelHelper.ImportFromExcel(_testFilePath);
+
+            // Assert
+            Assert.AreEqual(2, result.Rows.Count);
+            Assert.AreEqual("1", result.Rows[0]["Id"]);
+            Assert.AreEqual("Test1", result.Rows[0]["Name"]);
+        }
+
+        [Test]
+        public void ImportFromExcel_ToListOfObjects_ReturnsCorrectData()
+        {
+            // Arrange
+            var data = new List<TestData>
+            {
+                new TestData { Id = 1, Name = "Test1" },
+                new TestData { Id = 2, Name = "Test2" }
+            };
+            ExcelHelper.ExportToExcel(data, _testFilePath);
+
+            // Act
+            var result = ExcelHelper.ImportFromExcel<TestData>(_testFilePath);
+
+            // Assert
+            Assert.AreEqual(2, result.Count);
+            Assert.AreEqual(1, result[0].Id);
+            Assert.AreEqual("Test1", result[0].Name);
+        }
+
+        private class TestData
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+        }
+    }
+}

PMSWPF.Tests/PMSWPF.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PMSWPF.csproj" />
+  </ItemGroup>
+
+</Project>