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src/Graph/__Tests/StellaOps.Graph.Api.Tests/SearchServiceTests.cs

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+using System.Collections.Generic;
+using StellaOps.Graph.Api.Services;
+using Xunit;
+
+namespace StellaOps.Graph.Api.Tests;
+
+public class SearchServiceTests
+{
+    [Fact]
+    public async Task SearchAsync_ReturnsNodeAndCursorTiles()
+    {
+        var service = new InMemoryGraphSearchService();
+        var req = new GraphSearchRequest
+        {
+            Kinds = new[] { "component" },
+            Query = "example",
+            Limit = 5
+        };
+
+        var results = new List<string>();
+        await foreach (var line in service.SearchAsync("acme", req))
+        {
+            results.Add(line);
+        }
+
+        Assert.Collection(results,
+            first => Assert.Contains("\"type\":\"node\"", first),
+            second => Assert.Contains("\"type\":\"cursor\"", second));
+    }
+
+    [Fact]
+    public async Task SearchAsync_RespectsCursorAndLimit()
+    {
+        var service = new InMemoryGraphSearchService();
+        var firstPage = new GraphSearchRequest { Kinds = new[] { "component" }, Limit = 1, Query = "widget" };
+
+        var results = new List<string>();
+        await foreach (var line in service.SearchAsync("acme", firstPage))
+        {
+            results.Add(line);
+        }
+
+        Assert.Equal(2, results.Count); // node + cursor
+        var cursorToken = ExtractCursor(results.Last());
+
+        var secondPage = firstPage with { Cursor = cursorToken };
+        var secondResults = new List<string>();
+        await foreach (var line in service.SearchAsync("acme", secondPage))
+        {
+            secondResults.Add(line);
+        }
+
+        Assert.Contains(secondResults, r => r.Contains("\"type\":\"node\""));
+    }
+
+    private static string ExtractCursor(string cursorJson)
+    {
+        const string tokenMarker = "\"token\":\"";
+        var start = cursorJson.IndexOf(tokenMarker, StringComparison.Ordinal);
+        if (start < 0) return string.Empty;
+        start += tokenMarker.Length;
+        var end = cursorJson.IndexOf('"', start);
+        return end > start ? cursorJson[start..end] : string.Empty;
+    }
+}

src/Graph/__Tests/StellaOps.Graph.Api.Tests/StellaOps.Graph.Api.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="../../StellaOps.Graph.Api/StellaOps.Graph.Api.csproj" />
+    <PackageReference Update="xunit" />
+    <PackageReference Update="xunit.runner.visualstudio" />
+    <PackageReference Update="Microsoft.NET.Test.Sdk" />
+  </ItemGroup>
+</Project>