Refactor: Rename DocumentOperator to DocumentService
Updated project and solution files to rename and restructure `DocumentOperator` to `DocumentService`. Modified project references in `DocumentService.API.csproj`, `DocumentService.Application.csproj`, and `DocumentService.Infrastructure.csproj` to reflect the new naming convention. Updated `DocumentService.sln` to remove old project references, add new ones, and adjust configuration and nested project mappings accordingly. This change aligns the project structure with the new naming convention.
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using System.Reflection;
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using DocumentService.Application.Common.Interfaces;
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using DocumentService.Domain.Common.Exceptions;
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using DocumentService.Infrastructure.Services.QrCodeProcessing;
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using FluentAssertions;
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namespace DocumentService.Tests.Unit.Infrastructure.Services.QrCodeProcessing;
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/// <summary>
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/// Unit tests for DevExpressSwissQrCodeProcessor.
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/// Tests Swiss QR Code extraction and parsing from PDFs.
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/// </summary>
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public class DevExpressSwissQrCodeProcessorTests
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{
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private readonly ISwissQrCodeProcessor _sut; // SUT = System Under Test
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public DevExpressSwissQrCodeProcessorTests()
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{
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// Arrange: Create instance
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_sut = new DevExpressSwissQrCodeProcessor();
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}
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#region Helper Methods
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/// <summary>
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/// Loads a test PDF from embedded resources as a Stream.
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/// </summary>
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/// <param name="filename">Name of the PDF file (e.g., "pdfWithSwissQRCode.pdf")</param>
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/// <returns>PDF content as MemoryStream</returns>
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private static Stream LoadTestPdf(string filename)
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{
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var assembly = Assembly.GetExecutingAssembly();
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var resourceName = $"DocumentService.Tests.TestData.Pdfs.{filename}";
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var stream = assembly.GetManifestResourceStream(resourceName);
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if (stream == null)
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{
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throw new FileNotFoundException(
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$"Embedded resource '{resourceName}' not found. " +
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$"Available resources: {string.Join(", ", assembly.GetManifestResourceNames())}");
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}
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// Copy to MemoryStream so caller can reuse/seek
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var memoryStream = new MemoryStream();
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stream.CopyTo(memoryStream);
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memoryStream.Position = 0; // Reset position for reading
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return memoryStream;
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}
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#endregion
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#region ExtractSwissQrCodeAsync Tests
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[Fact(Skip = "Current test PDF uses QR format not compatible with ZXing library. Requires real Swiss QR Bill PDF from https://www.swiss-qr-invoice.org/")]
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public async Task ExtractSwissQrCodeAsync_PdfWithSwissQrCode_ReturnsQrCodeData()
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{
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// Arrange
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using var pdfStream = LoadTestPdf("pdfWithSwissQRCode.pdf");
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// Act
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var (bill, rawLines) = await _sut.ExtractSwissQrCodeAsync(pdfStream);
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// Assert
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bill.Should().NotBeNull("PDF contains a Swiss QR Code");
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bill.Account.Should().NotBeNullOrEmpty("QR Code should contain IBAN");
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bill.Currency.Should().NotBeNullOrEmpty("QR Code should contain currency");
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bill.Creditor.Should().NotBeNull("QR Code should contain creditor");
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bill.Creditor.Name.Should().NotBeNullOrEmpty("QR Code should contain creditor name");
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rawLines.Should().NotBeEmpty("Raw lines should contain parsed QR code text");
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}
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[Fact(Skip = "Test PDF incompatible with ZXing - requires real Swiss QR Bill PDF")]
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public async Task ExtractSwissQrCodeAsync_PdfWithSwissQrCode_ReturnsValidIban()
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{
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// Arrange
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using var pdfStream = LoadTestPdf("pdfWithSwissQRCode.pdf");
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// Act
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var (bill, _) = await _sut.ExtractSwissQrCodeAsync(pdfStream);
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// Assert
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bill.Account.Should().MatchRegex(@"^CH\d{2}[A-Z0-9]{17}$",
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"Swiss IBAN should match pattern: CH + 2 digits + 17 chars");
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}
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[Fact(Skip = "Test PDF incompatible with ZXing - requires real Swiss QR Bill PDF")]
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public async Task ExtractSwissQrCodeAsync_PdfWithSwissQrCode_ReturnsCurrency()
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{
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// Arrange
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using var pdfStream = LoadTestPdf("pdfWithSwissQRCode.pdf");
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// Act
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var (bill, _) = await _sut.ExtractSwissQrCodeAsync(pdfStream);
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// Assert
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bill.Currency.Should().BeOneOf("CHF", "EUR",
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"Swiss QR Bill supports CHF and EUR currencies");
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}
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[Fact]
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public async Task ExtractSwissQrCodeAsync_PdfWithoutQrCode_ThrowsSwissQrCodeNotFoundException()
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{
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// Arrange: valid.pdf doesn't contain a Swiss QR Code
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using var pdfStream = LoadTestPdf("valid.pdf");
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// Act & Assert
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var act = async () => await _sut.ExtractSwissQrCodeAsync(pdfStream);
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await act.Should().ThrowAsync<NotFoundException>()
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.WithMessage("*No valid Swiss QR Code found*");
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}
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[Fact]
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public async Task ExtractSwissQrCodeAsync_EmptyPdf_ThrowsException()
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{
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// Arrange: Empty stream
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using var emptyStream = new MemoryStream();
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// Act & Assert
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var act = async () => await _sut.ExtractSwissQrCodeAsync(emptyStream);
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await act.Should().ThrowAsync<Exception>()
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.Where(ex => ex is ArgumentException);
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}
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[Fact]
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public async Task ExtractSwissQrCodeAsync_NullInput_ThrowsArgumentNullException()
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{
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// Arrange
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Stream nullStream = null!;
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// Act & Assert
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var act = async () => await _sut.ExtractSwissQrCodeAsync(nullStream);
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await act.Should().ThrowAsync<ArgumentNullException>();
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}
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[Fact]
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public async Task ExtractSwissQrCodeAsync_InvalidPdfBytes_ThrowsPdfProcessingException()
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{
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// Arrange: Random bytes that are not a valid PDF
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using var invalidStream = new MemoryStream("This is not a PDF file"u8.ToArray());
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// Act & Assert
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var act = async () => await _sut.ExtractSwissQrCodeAsync(invalidStream);
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await act.Should().ThrowAsync<ArgumentException>();
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}
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[Fact]
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public async Task ExtractSwissQrCodeAsync_StreamNotAtBeginning_ThrowsBadRequestException()
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{
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// Arrange: Valid PDF but stream position is not at 0
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using var pdfStream = LoadTestPdf("valid.pdf");
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pdfStream.Position = 10; // Move position away from beginning
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// Act & Assert
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var act = async () => await _sut.ExtractSwissQrCodeAsync(pdfStream);
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await act.Should().ThrowAsync<BadRequestException>();
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}
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#endregion
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#region Swiss QR Code Content Validation Tests
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[Fact(Skip = "Test PDF incompatible with ZXing - requires real Swiss QR Bill PDF")]
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public async Task ExtractSwissQrCodeAsync_ValidQrCode_ParsesCreditorInformation()
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{
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// Arrange
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using var pdfStream = LoadTestPdf("pdfWithSwissQRCode.pdf");
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// Act
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var (bill, _) = await _sut.ExtractSwissQrCodeAsync(pdfStream);
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// Assert
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bill.Creditor.Should().NotBeNull("Creditor information is required");
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bill.Creditor.Name.Should().NotBeNullOrEmpty("Creditor name is required");
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// Swiss QR Bill allows optional address fields
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}
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[Fact(Skip = "Test PDF incompatible with ZXing - requires real Swiss QR Bill PDF")]
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public async Task ExtractSwissQrCodeAsync_ValidQrCode_ParsesDebtorInformationIfPresent()
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{
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// Arrange
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using var pdfStream = LoadTestPdf("pdfWithSwissQRCode.pdf");
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// Act
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var (bill, _) = await _sut.ExtractSwissQrCodeAsync(pdfStream);
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// Assert
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// Debtor information is OPTIONAL in Swiss QR Bill Standard 2.0
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// So we just check that the property exists (can be null)
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bill.Should().NotBeNull();
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// If debtor is present, it should have a name
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if (bill.Debtor != null)
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{
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bill.Debtor.Name.Should().NotBeNullOrWhiteSpace();
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}
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}
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[Fact(Skip = "Test PDF incompatible with ZXing - requires real Swiss QR Bill PDF")]
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public async Task ExtractSwissQrCodeAsync_ValidQrCode_ParsesAmountIfPresent()
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{
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// Arrange
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using var pdfStream = LoadTestPdf("pdfWithSwissQRCode.pdf");
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// Act
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var (bill, _) = await _sut.ExtractSwissQrCodeAsync(pdfStream);
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// Assert
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// Amount is OPTIONAL in Swiss QR Bill (can be 0.00 or null for payment slips)
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if (bill.Amount.HasValue)
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{
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bill.Amount.Value.Should().BeGreaterOrEqualTo(0.01m,
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"If amount is specified, it should be >= 0.01");
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}
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}
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#endregion
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}
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