Premiere commit - Omika

tests/Omika.Tests/Contracts/PagedResultTests.cs

@@ -0,0 +1,55 @@
+using Omika.Core.Contracts.Common;
+
+namespace Omika.Tests.Contracts;
+
+/// <summary>
+/// Tests du contrat de pagination : bornes, calcul du nombre total de pages et
+/// indicateurs de navigation.
+/// </summary>
+public class PagedResultTests
+{
+    [Fact]
+    public void PagedRequest_NormalizesPage_ToAtLeastOne()
+    {
+        var request = new PagedRequest { Page = 0, PageSize = 10 };
+
+        Assert.Equal(1, request.Page);
+    }
+
+    [Fact]
+    public void PagedRequest_ClampsPageSize()
+    {
+        var request = new PagedRequest { PageSize = PagedRequest.MaxPageSize + 1 };
+
+        Assert.Equal(PagedRequest.MaxPageSize, request.PageSize);
+    }
+
+    [Fact]
+    public void PagedRequest_ZeroPageSize_FallsBackToDefault()
+    {
+        var request = new PagedRequest { PageSize = 0 };
+
+        Assert.Equal(20, request.PageSize);
+    }
+
+    [Fact]
+    public void PagedResult_ComputesTotalPages_AndNavigation()
+    {
+        var items = new[] { "a", "b", "c", "d", "e" };
+        var result = new PagedResult<string>(items, Page: 1, PageSize: 2, TotalCount: 5, TotalPages: 3);
+
+        Assert.Equal(5, result.TotalCount);
+        Assert.Equal(3, result.TotalPages);
+        Assert.False(result.HasPreviousPage);
+        Assert.True(result.HasNextPage);
+    }
+
+    [Fact]
+    public void PagedResult_LastPage_HasNoNextPage()
+    {
+        var result = new PagedResult<string>([], Page: 2, PageSize: 2, TotalCount: 4, TotalPages: 2);
+
+        Assert.True(result.HasPreviousPage);
+        Assert.False(result.HasNextPage);
+    }
+}