Updates to unit tests

ahsanaman92 · Mar 22, 2024 · 761451a · 761451a
1 parent 1bd2ac0
commit 761451a
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Showing 3 changed files with 58 additions and 11 deletions.
diff --git a/JpegXmpWritePluginMDE.Tests/Formats/Jpeg/JpegMetadataWriterTest.cs b/JpegXmpWritePluginMDE.Tests/Formats/Jpeg/JpegMetadataWriterTest.cs
@@ -21,6 +21,7 @@
 //    https://drewnoakes.com/code/exif/
 //
 #endregion
+using JpegXmpWritePluginMDE.MetadataExtractor;
 using JpegXmpWritePluginMDE.MetadataExtractor.Formats.Jpeg;
 using MetadataExtractor.Formats.Jpeg;
 using MetadataExtractor.IO;
@@ -93,14 +94,16 @@ public void TestUpdateJpegFragments_FailsOnUnknownMetadataObject()
 		[Fact]
 		public void TestWriteJpegMetadata()
 		{
-			var originalStream = TestDataUtil.OpenRead("Data/xmpWriting_PictureWithMicrosoftXmp.jpg");
-			IXmpMeta xmp = XmpMetaFactory.ParseFromString(File.ReadAllText("Data/xmpWriting_XmpContent.xmp"));
-			byte[] expectedResult = TestDataUtil.GetBytes("Data/xmpWriting_PictureWithMicrosoftXmpReencoded.jpg");
+			string writeToFile = TestDataUtil.GetFullTestFilePath("xmpWriting_PictureWithMicrosoftXmp.jpg");
+			string xmpToWrite = TestDataUtil.GetFullTestFilePath("xmpWriting_XmpContent.xmp");
+			string expectedOutputFile = TestDataUtil.GetFullTestFilePath("xmpWriting_PictureWithMicrosoftXmpReencoded.jpg");
 
-			var metadata_objects = new object[] { xmp };
-			var updatedStream = JpegMetadataWriter.WriteMetadata(originalStream, metadata_objects);
+			IXmpMeta xmp = XmpMetaFactory.ParseFromString(File.ReadAllText(xmpToWrite));
+			byte[] expectedResult = TestDataUtil.GetBytes(expectedOutputFile);
 
-			var actualResult = updatedStream.ToArray();
+			var metadata_objects = new object[] { xmp };
+			ImageMetadataWriter.WriteMetadata(writeToFile, metadata_objects);
+			byte[] actualResult = TestDataUtil.GetBytes(writeToFile);
 
 			Assert.True(actualResult.SequenceEqual(expectedResult));
 		}

diff --git a/JpegXmpWritePluginMDE.Tests/ImageMetadataWriterTest.cs b/JpegXmpWritePluginMDE.Tests/ImageMetadataWriterTest.cs
@@ -34,14 +34,18 @@ public sealed class ImageMetadataWriterTest
 		[Fact]
 		public void TestWriteImageMetadata()
 		{
-			var originalStream = TestDataUtil.OpenRead("Data/xmpWriting_PictureWithMicrosoftXmp.jpg");
-			IXmpMeta xmp = XmpMetaFactory.ParseFromString(File.ReadAllText("Data/xmpWriting_XmpContent.xmp"));
-			byte[] expectedResult = TestDataUtil.GetBytes("Data/xmpWriting_PictureWithMicrosoftXmpReencoded.jpg");
+			string writeToFile = TestDataUtil.CreateTestCopy("xmpWriting_PictureWithMicrosoftXmp.jpg");
+			string xmpToWrite = TestDataUtil.GetFullTestFilePath("xmpWriting_XmpContent.xmp");
+			string expectedOutputFile = TestDataUtil.GetFullTestFilePath("xmpWriting_PictureWithMicrosoftXmpReencoded.jpg");
+
+			IXmpMeta xmp = XmpMetaFactory.ParseFromString(File.ReadAllText(xmpToWrite));
+			byte[] expectedResult = TestDataUtil.GetBytes(expectedOutputFile);
 
 			var metadata_objects = new object[] { xmp };
-			var updatedStream = ImageMetadataWriter.WriteMetadata(originalStream, metadata_objects);
+			ImageMetadataWriter.WriteMetadata(writeToFile, metadata_objects);
+			byte[] actualResult = TestDataUtil.GetBytes(writeToFile);
 
-			var actualResult = updatedStream.ToArray();
+			TestDataUtil.DeleteTestFile(writeToFile);
 
 			Assert.True(actualResult.SequenceEqual(expectedResult));
 		}

diff --git a/JpegXmpWritePluginMDE.Tests/TestDataUtil.cs b/JpegXmpWritePluginMDE.Tests/TestDataUtil.cs
@@ -1,5 +1,7 @@
 // Copyright (c) Drew Noakes and contributors. All Rights Reserved. Licensed under the Apache License, Version 2.0. See LICENSE in the project root for license information.
 
+using System.Reflection;
+
 namespace JpegXmpWritePluginMDE.Tests
 {
 	/// <summary>Utility functions for working with unit tests data files.</summary>
@@ -15,5 +17,43 @@ internal static class TestDataUtil
 		public static Stream OpenRead(string filePath) => new FileStream(GetPath(filePath), FileMode.Open, FileAccess.Read, FileShare.Read);
 
 		public static byte[] GetBytes(string filePath) => File.ReadAllBytes(GetPath(filePath));
+		/// <summary>
+		/// Gets path of the executing assembly
+		/// </summary>
+		/// <returns></returns>
+		public static string GetTestExecutionPath() => Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
+		/// <summary>
+		/// Gets the path to the test file
+		/// </summary>
+		/// <param name="fileName"></param>
+		/// <returns></returns>
+		public static string GetFullTestFilePath(string fileName)
+		{
+			return Path.Combine(GetTestExecutionPath(), "Data", fileName);
+		}
+		/// <summary>
+		/// Creates copy of a test file to avoid multiple unit tests accessing the same file for writing
+		/// </summary>
+		/// <param name="fileName"></param>
+		/// <returns></returns>
+		public static string CreateTestCopy(string fileName)
+		{
+			string destinationFilePath = GetTestExecutionPath() + "\\" + "Data\\"+ fileName + Guid.NewGuid().ToString();
+			string originalFilePath = GetFullTestFilePath(fileName);
+			File.Copy(originalFilePath, destinationFilePath);
+			return destinationFilePath;
+		}
+		/// <summary>
+		/// Delete the test file
+		/// </summary>
+		/// <param name="fileName"></param>
+		public static void DeleteTestFile (string fileName)
+		{
+			if (File.Exists(fileName))
+			{
+				File.Delete(fileName);
+			}
+
+		}
 	}
 }