Complete Step 1.1: ValidatePDF Application Layer

Updated PHASENPLAN and ROADMAP to reflect progress on Feature 1 - ValidatePDF (75% complete). Marked Step 1.1 as completed, including MediatR setup, pipeline behaviors (`ValidationBehavior`, `LoggingBehavior`), ValidatePDF feature (Query, Handler, Validator), and DTOs. Added `DependencyInjection.cs` for Application Layer DI configuration. Introduced `LoggingBehavior` and `ValidationBehavior` for MediatR pipelines. Implemented `ValidatePdfHandler`, `ValidatePdfQuery`, and `ValidatePdfValidator`. Created DTOs (`ValidatePdfRequest`, `ValidatePdfResponse`) for the ValidatePDF feature. Added unit tests for `ValidatePdfHandler` to verify metadata handling and exception propagation. Removed unused folder references in `DocumentOperator.Application.csproj`.
2026-06-25 15:23:58 +02:00
parent 62c67d86d4
commit afc0e34312
12 changed files with 367 additions and 48 deletions
--- a/DocumentOperator.Tests/Unit/Application/Features/ValidatePdf/ValidatePdfHandlerTests.cs
+++ b/DocumentOperator.Tests/Unit/Application/Features/ValidatePdf/ValidatePdfHandlerTests.cs
@@ -0,0 +1,78 @@
+using DocumentOperator.Application.Common.Interfaces;
+using DocumentOperator.Application.Features.Documents.ValidatePdf;
+using DocumentOperator.Domain.Common.Exceptions;
+using DocumentOperator.Domain.Models.ValueObjects;
+using FluentAssertions;
+using Moq;
+using Xunit;
+
+namespace DocumentOperator.Tests.Unit.Application.Features.ValidatePdf;
+
+public class ValidatePdfHandlerTests
+{
+    private readonly Mock<IPdfProcessor> _mockPdfProcessor;
+    private readonly ValidatePdfHandler _handler;
+
+    public ValidatePdfHandlerTests()
+    {
+        _mockPdfProcessor = new Mock<IPdfProcessor>();
+        _handler = new ValidatePdfHandler(_mockPdfProcessor.Object);
+    }
+
+    [Fact]
+    public async Task Handle_ValidPdf_ReturnsPdfMetadata()
+    {
+        // Arrange
+        var base64Pdf = Convert.ToBase64String(new byte[] { 0x25, 0x50, 0x44, 0x46 }); // "%PDF"
+        var pdfContent = Base64String.Create(base64Pdf);
+        var query = new ValidatePdfQuery(pdfContent);
+
+        var expectedMetadata = new PdfMetadata(
+            pageCount: 5,
+            fileSizeBytes: 1024,
+            pdfVersion: "1.4",
+            hasAttachments: false,
+            attachmentCount: 0
+        );
+
+        _mockPdfProcessor
+            .Setup(x => x.ValidateAsync(It.IsAny<byte[]>()))
+            .ReturnsAsync(expectedMetadata);
+
+        // Act
+        var result = await _handler.Handle(query, CancellationToken.None);
+
+        // Assert
+        result.Should().NotBeNull();
+        result.PageCount.Should().Be(5);
+        result.FileSizeBytes.Should().Be(1024);
+        result.PdfVersion.Should().Be("1.4");
+        result.HasAttachments.Should().BeFalse();
+        result.AttachmentCount.Should().Be(0);
+
+        _mockPdfProcessor.Verify(
+            x => x.ValidateAsync(It.IsAny<byte[]>()),
+            Times.Once
+        );
+    }
+
+    [Fact]
+    public async Task Handle_PdfProcessorThrowsException_PropagatesException()
+    {
+        // Arrange
+        var base64Pdf = Convert.ToBase64String(new byte[] { 0x25, 0x50, 0x44, 0x46 });
+        var pdfContent = Base64String.Create(base64Pdf);
+        var query = new ValidatePdfQuery(pdfContent);
+
+        _mockPdfProcessor
+            .Setup(x => x.ValidateAsync(It.IsAny<byte[]>()))
+            .ThrowsAsync(new PdfProcessingException("Invalid PDF format"));
+
+        // Act
+        Func<Task> act = async () => await _handler.Handle(query, CancellationToken.None);
+
+        // Assert
+        await act.Should().ThrowAsync<PdfProcessingException>()
+            .WithMessage("Invalid PDF format");
+    }
+}