Trial - boosting prospect grid loading performance

FoodsharingSiegen.Tests/ProspectServiceTests.cs

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+using FoodsharingSiegen.Contracts.Entity;
+using FoodsharingSiegen.Contracts.Enums;
+using FoodsharingSiegen.Contracts.Model;
+using FoodsharingSiegen.Server.Auth;
+using FoodsharingSiegen.Server.Data;
+using FoodsharingSiegen.Server.Data.Service;
+using FoodsharingSiegen.Server.Service;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using Microsoft.JSInterop;
+using Moq;
+using Xunit;
+
+namespace FoodsharingSiegen.Tests;
+
+public class ProspectServiceTests
+{
+    private static FsContext CreateInMemoryContext(string dbName)
+    {
+        var options = new DbContextOptionsBuilder<FsContext>()
+            .UseInMemoryDatabase(databaseName: dbName)
+            .Options;
+
+        return new FsContext(options);
+    }
+
+    private static AuthService CreateAuthService(FsContext context)
+    {
+        var mockJsRuntime = new Mock<IJSRuntime>();
+        var localStorageService = new LocalStorageService(mockJsRuntime.Object);
+        var authStateProvider = new Mock<AuthenticationStateProvider>();
+        var mailService = new Mock<IMailService>();
+        var appSettings = new Mock<IOptions<AppSettings>>();
+        appSettings.Setup(x => x.Value).Returns(new AppSettings());
+
+        return new AuthService(context, localStorageService, authStateProvider.Object, mailService.Object, appSettings.Object);
+    }
+
+    [Fact]
+    public async Task GetProspectsAsync_RespectsSkipAndTake()
+    {
+        var dbName = Guid.NewGuid().ToString();
+        using var context = CreateInMemoryContext(dbName);
+        var authService = CreateAuthService(context);
+        var auditService = new AuditService(context, authService);
+        var prospectService = new ProspectService(context, authService, auditService);
+
+        for (var i = 0; i < 5; i++)
+        {
+            context.Prospects!.Add(new Prospect
+            {
+                Id = Guid.NewGuid(),
+                Name = $"Prospect {i}",
+                Modified = DateTime.UtcNow.AddDays(-i),
+                Interactions = new List<Interaction>()
+            });
+        }
+
+        await context.SaveChangesAsync();
+
+        var result = await prospectService.GetProspectsAsync(new GetProspectsParameter
+        {
+            Skip = 1,
+            Take = 2,
+            IncludeDeleted = true
+        });
+
+        Assert.True(result.Success);
+        Assert.Equal(2, result.Data.Count);
+        Assert.Equal("Prospect 1", result.Data[0].Name);
+        Assert.Equal("Prospect 2", result.Data[1].Name);
+    }
+}