Premiere commit - Omika

tests/Omika.Diagnostics.Tests/DiagnosticPaginationTests.cs

@@ -0,0 +1,44 @@
+using Omika.Diagnostics.Queries;
+using Omika.Diagnostics.Tests.Fakes;
+
+namespace Omika.Diagnostics.Tests;
+
+/// <summary>§56 — Pagination : page size borné, offset calculé, tri timestamp, jamais de requête non bornée.</summary>
+public class DiagnosticPaginationTests
+{
+    [Fact]
+    public void Query_ClampsPageSizeAndPage()
+    {
+        var tooLarge = new DiagnosticEventQuery { PageSize = 100_000, Page = 0 };
+        Assert.Equal(DiagnosticPaging.MaxPageSize, tooLarge.PageSize);
+        Assert.Equal(1, tooLarge.Page);
+        Assert.Equal(0, tooLarge.Offset);
+
+        var tooSmall = new DiagnosticEventQuery { PageSize = 0 };
+        Assert.Equal(1, tooSmall.PageSize);
+
+        var page3 = new DiagnosticEventQuery { Page = 3, PageSize = 50 };
+        Assert.Equal(100, page3.Offset);
+    }
+
+    [Fact]
+    public async Task Repository_AppliesBoundedPagination()
+    {
+        var repository = new FakeDiagnosticEventRepository();
+        DateTimeOffset baseTime = new(2025, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+        for (int i = 0; i < 10; i++)
+        {
+            await repository.InsertBatchAsync(new[]
+            {
+                DiagnosticTestData.Event(Guid.NewGuid(), "E" + i, baseTime.AddSeconds(i))
+            });
+        }
+
+        var page = await repository.QueryAsync(new DiagnosticEventQuery { Page = 2, PageSize = 3 });
+
+        Assert.Equal(10, page.TotalCount);
+        Assert.Equal(4, page.TotalPages);
+        Assert.Equal(3, page.Items.Count);
+    }
+}