Premiere commit - Omika

tests/Omika.Diagnostics.Tests/DiagnosticPromptHandlerTests.cs

@@ -0,0 +1,53 @@
+using Microsoft.AspNetCore.Mvc;
+using Omika.Diagnostics.Models;
+using Omika.Diagnostics.Tests.Fakes;
+using Omika.Diagnostics.Web.Pages;
+
+namespace Omika.Diagnostics.Tests;
+
+/// <summary>
+/// T24-A — handlers serveur du prompt IA (OnGetPromptAsync) : vérifie que le clic renvoie
+/// bien le texte du prompt (text/plain), et 404 pour un id inconnu. Ne teste pas la
+/// génération (déjà couverte par DiagnosticPromptBuilderTests) mais le contrat HTTP.
+/// </summary>
+public class DiagnosticPromptHandlerTests
+{
+    private static DiagnosticEventRecord Ev(long id, string eventCode = "ERR") => new()
+    {
+        Id = id,
+        EventId = Guid.NewGuid(),
+        EventCode = eventCode,
+        TimestampUtc = new DateTimeOffset(2025, 1, 1, 12, 0, 0, TimeSpan.Zero),
+        Level = "Error",
+        Priority = "P2",
+        ExceptionType = "System.InvalidOperationException",
+        Source = DiagnosticSources.Api,
+        IngestedAtUtc = DateTimeOffset.UtcNow
+    };
+
+    [Fact]
+    public async Task DiagnosticsDetail_Prompt_ReturnsTextPrompt()
+    {
+        var repo = new FakeDiagnosticEventRepository();
+        await repo.InsertBatchAsync(new[] { Ev(42) });
+        var model = new DiagnosticsDetailModel(repo);
+
+        IActionResult result = await model.OnGetPromptAsync(42);
+
+        ContentResult content = Assert.IsType<ContentResult>(result);
+        Assert.StartsWith("Analyse cette erreur Omika", content.Content, StringComparison.Ordinal);
+        Assert.Contains("ERR", content.Content, StringComparison.Ordinal);
+        Assert.Equal("text/plain; charset=utf-8", content.ContentType);
+    }
+
+    [Fact]
+    public async Task DiagnosticsDetail_Prompt_UnknownId_ReturnsNotFound()
+    {
+        var repo = new FakeDiagnosticEventRepository();
+        var model = new DiagnosticsDetailModel(repo);
+
+        IActionResult result = await model.OnGetPromptAsync(999);
+
+        Assert.IsType<NotFoundResult>(result);
+    }
+}