Init

2025-10-27 17:39:18 -04:00
commit 31f723bea4
1579 changed files with 642409 additions and 0 deletions
--- a/Prefab.Tests/Unit/Web/Shared/ExceptionHandlerShould.cs
+++ b/Prefab.Tests/Unit/Web/Shared/ExceptionHandlerShould.cs
@@ -0,0 +1,130 @@
+using FluentValidation;
+using FluentValidation.Results;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Json;
+using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Options;
+using Microsoft.EntityFrameworkCore;
+using Prefab.Handler;
+using Prefab.Catalog.Domain.Exceptions;
+using Prefab.Web.Shared;
+using Shouldly;
+using System.Text.Json;
+
+namespace Prefab.Tests.Unit.Web.Shared;
+
+public sealed class ExceptionHandlerShould
+{
+    [Fact]
+    public async Task ReturnBadRequestForValidationFailures()
+    {
+        var failure = new ValidationFailure("productId", "Either productId or sku must be provided.");
+        var exception = new ValidationException(new[] { failure });
+
+        var context = new DefaultHttpContext();
+        context.Response.Body = new MemoryStream();
+
+        var services = new ServiceCollection();
+        services.AddSingleton<IHandlerContextAccessor, HandlerContextAccessor>();
+        using var provider = services.BuildServiceProvider();
+        context.RequestServices = provider;
+
+        var middleware = new ExceptionHandler(
+            _ => throw exception,
+            NullLogger<ExceptionHandler>.Instance,
+            Options.Create(new JsonOptions()));
+
+        await middleware.InvokeAsync(context);
+
+        context.Response.StatusCode.ShouldBe(StatusCodes.Status400BadRequest);
+
+        context.Response.Body.Seek(0, SeekOrigin.Begin);
+        using var reader = new StreamReader(context.Response.Body);
+        var payload = await reader.ReadToEndAsync(TestContext.Current.CancellationToken);
+
+        using var document = JsonDocument.Parse(payload);
+        var root = document.RootElement;
+
+        var messages = new List<string>();
+        if (root.TryGetProperty("errors", out var errorsElement))
+        {
+            messages.AddRange(
+                errorsElement
+                    .EnumerateObject()
+                    .SelectMany(property => property.Value.EnumerateArray())
+                    .Select(element => element.GetString())
+                    .Where(message => !string.IsNullOrWhiteSpace(message))!
+                    .Cast<string>());
+        }
+
+        if (messages.Count == 0 && root.TryGetProperty("detail", out var detailElement))
+        {
+            messages.Add(detailElement.GetString() ?? string.Empty);
+        }
+
+        messages.ShouldNotBeEmpty(payload);
+        messages.ShouldContain(message => message.Equals("Either productId or sku must be provided.", StringComparison.OrdinalIgnoreCase));
+    }
+
+    [Fact]
+    public async Task ReturnBadRequestForDomainExceptions()
+    {
+        var exception = new DomainValidationException("Demo domain failure.");
+
+        var context = new DefaultHttpContext();
+        context.Response.Body = new MemoryStream();
+
+        var services = new ServiceCollection();
+        services.AddSingleton<IHandlerContextAccessor, HandlerContextAccessor>();
+        using var provider = services.BuildServiceProvider();
+        context.RequestServices = provider;
+
+        var middleware = new ExceptionHandler(
+            _ => throw exception,
+            NullLogger<ExceptionHandler>.Instance,
+            Options.Create(new JsonOptions()));
+
+        await middleware.InvokeAsync(context);
+
+        context.Response.StatusCode.ShouldBe(StatusCodes.Status400BadRequest);
+        context.Response.Body.Seek(0, SeekOrigin.Begin);
+        using var reader = new StreamReader(context.Response.Body);
+        var payload = await reader.ReadToEndAsync(TestContext.Current.CancellationToken);
+
+        using var document = JsonDocument.Parse(payload);
+        var detail = document.RootElement.GetProperty("detail").GetString();
+        document.RootElement.GetProperty("type").GetString().ShouldBe("https://prefab.dev/problems/domain-error");
+        detail.ShouldNotBeNull();
+        detail!.ShouldContain("Demo domain failure.");
+    }
+
+    [Fact]
+    public async Task ReturnConflictForConcurrencyExceptions()
+    {
+        var exception = new DbUpdateConcurrencyException("Concurrency conflict");
+
+        var context = new DefaultHttpContext();
+        context.Response.Body = new MemoryStream();
+
+        var services = new ServiceCollection();
+        services.AddSingleton<IHandlerContextAccessor, HandlerContextAccessor>();
+        using var provider = services.BuildServiceProvider();
+        context.RequestServices = provider;
+
+        var middleware = new ExceptionHandler(
+            _ => throw exception,
+            NullLogger<ExceptionHandler>.Instance,
+            Options.Create(new JsonOptions()));
+
+        await middleware.InvokeAsync(context);
+
+        context.Response.StatusCode.ShouldBe(StatusCodes.Status409Conflict);
+        context.Response.Body.Seek(0, SeekOrigin.Begin);
+        using var reader = new StreamReader(context.Response.Body);
+        var payload = await reader.ReadToEndAsync(TestContext.Current.CancellationToken);
+
+        using var document = JsonDocument.Parse(payload);
+        document.RootElement.GetProperty("type").GetString().ShouldBe("https://prefab.dev/problems/concurrency-conflict");
+    }
+
+}