Added tests for date embedding service

ExportViewer.Tests/DateEmbeddingServiceTests.cs

@@ -0,0 +1,130 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using System.Threading.Tasks;
+using ExportViewer.Core.Models.Common;
+using ExportViewer.Core.Services;
+using Moq;
+using Xunit;
+
+namespace ExportViewer.Tests
+{
+    [ExcludeFromCodeCoverage]
+    public class DateEmbeddingServiceTests
+    {
+        [Fact]
+        public async Task EmbeddDate_FileExists_CopySuccessful ()
+        {
+            // Arrange
+            var message = new Message { Link = $"{Guid.NewGuid()}.txt" , Date = DateTime.Now.AddDays(new Random().Next(1 , 100)) };
+            var exportLocation = Path.GetTempPath();
+            var destinationPath = Path.GetTempPath();
+            var progressMock = new Mock<IProgress<string>>();
+
+            // Ensure the file exists for the test
+            var sourceFilePath = Path.Combine(exportLocation , message.Link);
+            var destinationFilePath = Path.Combine(destinationPath , message.Link);
+            Directory.CreateDirectory(exportLocation);
+            Directory.CreateDirectory(destinationPath);
+            File.WriteAllText(sourceFilePath , "Test content");
+
+            var service = new DateEmbeddingService();
+
+            // Act
+            await service.EmbeddDate(message , exportLocation , destinationPath , progressMock.Object);
+
+            // Assert
+            Assert.True(File.Exists(destinationFilePath));
+            Assert.Equal(File.GetCreationTime(destinationFilePath) , message.Date);
+            Assert.Equal(File.GetLastAccessTime(destinationFilePath) , message.Date);
+            Assert.Equal(File.GetLastWriteTime(destinationFilePath) , message.Date);
+
+            // Cleanup
+            File.Delete(sourceFilePath);
+            File.Delete(destinationFilePath);
+        }
+
+        [Fact]
+        public async Task EmbeddDate_FileDoesNotExist_ThrowsException ()
+        {
+            // Arrange
+            var message = new Message { Link = $"{Guid.NewGuid()}.txt" , Date = DateTime.Now.AddDays(new Random().Next(1 , 100)) };
+            var exportLocation = Path.GetTempPath();
+            var destinationPath = Path.GetTempPath();
+            var progressMock = new Mock<IProgress<string>>();
+
+            var service = new DateEmbeddingService();
+
+            // Act & Assert
+            await Assert.ThrowsAsync<FileNotFoundException>(() => service.EmbeddDate(message , exportLocation , destinationPath , progressMock.Object));
+        }
+
+        [Fact]
+        public async Task EmbeddDate_ProgressReported ()
+        {
+            // Arrange
+            var message = new Message { Link = $"{Guid.NewGuid()}.txt" , Date = DateTime.Now.AddDays(new Random().Next(1 , 100)) };
+            var exportLocation = Path.GetTempPath();
+            var destinationPath = Path.GetTempPath();
+            var progressMock = new Mock<IProgress<string>>();
+            progressMock.Setup(p => p.Report(It.IsAny<string>())).Verifiable();
+
+            // Ensure the file exists for the test
+            var sourceFilePath = Path.Combine(exportLocation , message.Link);
+            Directory.CreateDirectory(exportLocation);
+            File.WriteAllText(sourceFilePath , "Test content");
+
+            var service = new DateEmbeddingService();
+
+            // Act
+            await service.EmbeddDate(message , exportLocation , destinationPath , progressMock.Object);
+
+            // Assert
+            progressMock.Verify(p => p.Report(It.IsAny<string>()) , Times.AtLeastOnce);
+
+            // Cleanup
+            File.Delete(sourceFilePath);
+        }
+
+        [Fact]
+        public async Task EmbeddDate_DestinationPathIsNull_ThrowsException ()
+        {
+            // Arrange
+            var message = new Message { Link = $"{Guid.NewGuid()}.txt" , Date = DateTime.Now.AddDays(new Random().Next(1 , 100)) };
+            var exportLocation = Path.GetTempPath();
+            var progressMock = new Mock<IProgress<string>>();
+
+            // Ensure the file exists for the test
+            var sourceFilePath = Path.Combine(exportLocation , message.Link);
+            Directory.CreateDirectory(exportLocation);
+            File.WriteAllText(sourceFilePath , "Test content");
+
+            var service = new DateEmbeddingService();
+
+            // Act & Assert
+            await Assert.ThrowsAsync<ArgumentNullException>(() => service.EmbeddDate(message , exportLocation , null , progressMock.Object));
+            File.Delete(sourceFilePath);
+        }
+
+        [Fact]
+        public async Task EmbeddDate_DestinationPathIsEmpty_ThrowsException ()
+        {
+            // Arrange
+            var message = new Message { Link = $"{Guid.NewGuid()}.txt" , Date = DateTime.Now.AddDays(new Random().Next(1 , 100)) };
+            var exportLocation = Path.GetTempPath();
+            var progressMock = new Mock<IProgress<string>>();
+
+            // Ensure the file exists for the test
+            var sourceFilePath = Path.Combine(exportLocation , message.Link);
+            Directory.CreateDirectory(exportLocation);
+            File.WriteAllText(sourceFilePath , "Test content");
+
+            var service = new DateEmbeddingService();
+
+            // Act & Assert
+            await Assert.ThrowsAsync<ArgumentException>(() => service.EmbeddDate(message , exportLocation , string.Empty , progressMock.Object));
+            File.Delete(sourceFilePath);
+        }
+    }
+}
+