test: Add PDF/A validation tests and manual testing guide

- Add unit tests for ValidatePdfAQueryHandler (4 tests)
- Add integration tests for PDF/A validation endpoint (6 tests)
- Fix FluentValidation: Add Base64 format validation to ValidatePdfAQueryValidator
- Update AGENTS.md: Document 3-folder test structure rationale and test count (30 tests)
- Add DocumentOperator.API/README.md: 16 manual test scenarios for all endpoints

Test coverage:
- Unit: ValidatePdfAQueryHandler (compliant, non-compliant, encrypted, exceptions)
- Integration: PDF/A endpoint (multipart + Base64, validation, error handling)
- Manual: Step-by-step Swagger UI testing guide for all features

All 30 automated tests passing.
This commit is contained in:
2026-07-09 14:01:57 +02:00
parent cd50d45bd5
commit f7433111a7
5 changed files with 835 additions and 2 deletions

View File

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using AutoMapper;
using DocumentOperator.Application.Common.DTOs;
using DocumentOperator.Application.Common.Interfaces;
using DocumentOperator.Application.ValidatePdfA.Queries;
using DocumentOperator.Domain.Common.Exceptions;
using DocumentOperator.Domain.Models.ValueObjects;
using FluentAssertions;
using Moq;
using Xunit;
namespace DocumentOperator.Tests.Unit.Application.Features.ValidatePdfA;
public class ValidatePdfAQueryHandlerTests
{
private readonly Mock<IPdfProcessor> _mockPdfProcessor;
private readonly Mock<IMapper> _mockMapper;
private readonly ValidatePdfAQueryHandler _handler;
public ValidatePdfAQueryHandlerTests()
{
_mockPdfProcessor = new Mock<IPdfProcessor>();
_mockMapper = new Mock<IMapper>();
_handler = new ValidatePdfAQueryHandler(_mockPdfProcessor.Object, _mockMapper.Object);
}
[Fact]
public async Task Handle_ValidPdfA_ReturnsPdfAMetadata()
{
// Arrange
var pdfBytes = new byte[] { 0x25, 0x50, 0x44, 0x46 }; // "%PDF"
var query = new ValidatePdfAQuery { PdfBytes = pdfBytes };
var domainMetadata = new PdfAMetadata(
isValid: true,
pdfVersion: "1.7",
pageCount: 3,
fileSizeBytes: 2048,
encrypted: false,
pdfaVersion: "PDF/A-3b",
pdfaCompliant: true,
errors: new List<string>(),
warnings: new List<string>()
);
var expectedDto = new PdfAValidationResult
{
IsValid = true,
PdfVersion = "1.7",
PageCount = 3,
FileSize = 2048,
Encrypted = false,
PdfAVersion = "PDF/A-3b",
PdfACompliant = true,
Errors = new List<string>(),
Warnings = new List<string>()
};
_mockPdfProcessor
.Setup(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()))
.ReturnsAsync(domainMetadata);
_mockMapper
.Setup(x => x.Map<PdfAValidationResult>(domainMetadata))
.Returns(expectedDto);
// Act
var result = await _handler.Handle(query, CancellationToken.None);
// Assert
result.Should().NotBeNull();
result.IsValid.Should().BeTrue();
result.PageCount.Should().Be(3);
result.PdfVersion.Should().Be("1.7");
result.PdfAVersion.Should().Be("PDF/A-3b");
result.PdfACompliant.Should().BeTrue();
result.Encrypted.Should().BeFalse();
result.Errors.Should().BeEmpty();
result.Warnings.Should().BeEmpty();
_mockPdfProcessor.Verify(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()), Times.Once);
_mockMapper.Verify(x => x.Map<PdfAValidationResult>(domainMetadata), Times.Once);
}
[Fact]
public async Task Handle_NonCompliantPdfA_ReturnsErrorsAndWarnings()
{
// Arrange
var pdfBytes = new byte[] { 0x25, 0x50, 0x44, 0x46 }; // "%PDF"
var query = new ValidatePdfAQuery { Base64Pdf = Convert.ToBase64String(pdfBytes) };
var errors = new List<string> { "Missing XMP metadata", "Invalid color space" };
var warnings = new List<string> { "Embedded font not subset" };
var domainMetadata = new PdfAMetadata(
isValid: false,
pdfVersion: "1.4",
pageCount: 2,
fileSizeBytes: 1024,
encrypted: false,
pdfaVersion: null,
pdfaCompliant: false,
errors: errors,
warnings: warnings
);
var expectedDto = new PdfAValidationResult
{
IsValid = false,
PdfVersion = "1.4",
PageCount = 2,
FileSize = 1024,
Encrypted = false,
PdfAVersion = null,
PdfACompliant = false,
Errors = errors,
Warnings = warnings
};
_mockPdfProcessor
.Setup(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()))
.ReturnsAsync(domainMetadata);
_mockMapper
.Setup(x => x.Map<PdfAValidationResult>(domainMetadata))
.Returns(expectedDto);
// Act
var result = await _handler.Handle(query, CancellationToken.None);
// Assert
result.Should().NotBeNull();
result.IsValid.Should().BeFalse();
result.PdfACompliant.Should().BeFalse();
result.PdfAVersion.Should().BeNull();
result.Errors.Should().HaveCount(2);
result.Errors.Should().Contain("Missing XMP metadata");
result.Warnings.Should().HaveCount(1);
_mockPdfProcessor.Verify(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()), Times.Once);
}
[Fact]
public async Task Handle_EncryptedPdf_ReturnsEncryptedFlag()
{
// Arrange
var pdfBytes = new byte[] { 0x25, 0x50, 0x44, 0x46 }; // "%PDF"
var query = new ValidatePdfAQuery { PdfBytes = pdfBytes };
var domainMetadata = new PdfAMetadata(
isValid: true,
pdfVersion: "1.7",
pageCount: 1,
fileSizeBytes: 512,
encrypted: true,
pdfaVersion: null,
pdfaCompliant: false,
errors: new List<string> { "Encrypted PDFs cannot be PDF/A compliant" },
warnings: new List<string>()
);
var expectedDto = new PdfAValidationResult
{
IsValid = true,
PdfVersion = "1.7",
PageCount = 1,
FileSize = 512,
Encrypted = true,
PdfAVersion = null,
PdfACompliant = false,
Errors = new List<string> { "Encrypted PDFs cannot be PDF/A compliant" },
Warnings = new List<string>()
};
_mockPdfProcessor
.Setup(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()))
.ReturnsAsync(domainMetadata);
_mockMapper
.Setup(x => x.Map<PdfAValidationResult>(domainMetadata))
.Returns(expectedDto);
// Act
var result = await _handler.Handle(query, CancellationToken.None);
// Assert
result.Should().NotBeNull();
result.Encrypted.Should().BeTrue();
result.PdfACompliant.Should().BeFalse();
result.Errors.Should().Contain("Encrypted PDFs cannot be PDF/A compliant");
_mockPdfProcessor.Verify(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()), Times.Once);
}
[Fact]
public async Task Handle_PdfProcessorThrowsException_PropagatesException()
{
// Arrange
var pdfBytes = new byte[] { 0x25, 0x50, 0x44, 0x46 }; // "%PDF"
var query = new ValidatePdfAQuery { PdfBytes = pdfBytes };
_mockPdfProcessor
.Setup(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()))
.ThrowsAsync(new PdfProcessingException("Invalid PDF format"));
// Act & Assert
var exception = await Assert.ThrowsAsync<PdfProcessingException>(
() => _handler.Handle(query, CancellationToken.None)
);
exception.Message.Should().Be("Invalid PDF format");
_mockPdfProcessor.Verify(x => x.ValidatePdfAAsync(It.IsAny<byte[]>()), Times.Once);
}
}