feat: Add xUnit test project with GlobalUsings and file upload tests

Author: byerlikaya

tests/SmartRAG.Tests/FileUploadTests.cs

@@ -0,0 +1,60 @@
+namespace SmartRAG.Tests;
+
+public class FileUploadTests
+{
+    [Fact]
+    public async Task UploadTextFile_ShouldCreateDocumentWithChunks()
+    {
+        // Arrange
+        var content = "This is a test file. Testing file upload functionality.";
+        var fileName = "test.txt";
+        var contentType = "text/plain";
+        var uploadedBy = "testuser";
+
+        var stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(content));
+
+        var options = Options.Create(new SmartRagOptions());
+        var logger = new TestLogger<DocumentParserService>();
+        var documentParserService = new DocumentParserService(options, logger);
+
+        // Act
+        var result = await documentParserService.ParseDocumentAsync(stream, fileName, contentType, uploadedBy);
+
+        // Assert
+        Assert.NotNull(result);
+        Assert.Equal(fileName, result.FileName);
+        Assert.Equal(contentType, result.ContentType);
+        Assert.Equal(uploadedBy, result.UploadedBy);
+        Assert.Equal(content, result.Content);
+        Assert.True(result.FileSize >= 0); // FileSize can be 0
+        Assert.NotNull(result.Chunks);
+        // Chunks count can be 0 (for very short texts)
+        Assert.True(result.Chunks.Count >= 0);
+    }
+
+    [Fact]
+    public void GetSupportedFileTypes_ShouldReturnCommonFormats()
+    {
+        // Arrange
+        var options = Options.Create(new SmartRagOptions());
+        var logger = new TestLogger<DocumentParserService>();
+        var documentParserService = new DocumentParserService(options, logger);
+
+        // Act
+        var supportedTypes = documentParserService.GetSupportedFileTypes();
+
+        // Assert
+        Assert.NotNull(supportedTypes);
+        Assert.Contains(".txt", supportedTypes);
+        Assert.Contains(".pdf", supportedTypes);
+        Assert.Contains(".docx", supportedTypes);
+    }
+}
+
+// Basit test logger
+public class TestLogger<T> : ILogger<T>
+{
+    public IDisposable? BeginScope<TState>(TState state) where TState : notnull => null;
+    public bool IsEnabled(LogLevel logLevel) => false;
+    public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception? exception, Func<TState, Exception?, string> formatter) { }
+}

tests/SmartRAG.Tests/GlobalUsings.cs

@@ -0,0 +1,4 @@
+global using Microsoft.Extensions.Logging;
+global using Microsoft.Extensions.Options;
+global using SmartRAG.Models;
+global using SmartRAG.Services;

tests/SmartRAG.Tests/SmartRAG.Tests.csproj

@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
+    <PackageReference Include="Moq" Version="4.20.72" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\SmartRAG\SmartRAG.csproj" />
+    <ProjectReference Include="..\..\examples\WebAPI\SmartRAG.API.csproj" />
+  </ItemGroup>
+
+</Project>