Working on new method

PhotoRenamer.Base/FilesHelper.cs

@@ -1,6 +1,9 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
+using ExifLibrary;
+using JetBrains.Annotations;
 
 namespace PhotoRenamer.Base
 {
@@ -22,5 +25,31 @@ namespace PhotoRenamer.Base
                 }
             }
         }
+
+        public static IEnumerable<MediaFile> GetMediaFiles([NotNull] IEnumerable<string> files)
+        {
+            if (files == null) throw new ArgumentNullException(nameof(files));
+            
+            foreach (var file in files)
+            {
+                var imageFile = ImageFile.FromFile(file);
+                var dateTime = imageFile.Properties.Get<ExifDateTime>(ExifTag.DateTimeOriginal);
+                var mediaFile  = new MediaFile(file, dateTime.Value);
+                yield return mediaFile;
+            }
+        }
+    }
+    
+    
+    public class MediaFile
+    {
+        public string Path { get; }
+        public DateTime CreationDate { get; }
+
+        public MediaFile(string path, DateTime creationDate)
+        {
+            Path = path;
+            CreationDate = creationDate;
+        }
     }
 }

PhotoRenamer.Test/FilesTest.cs

@@ -2,6 +2,7 @@ using System;
 using System.IO;
 using System.Linq;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
+using PhotoRenamer.Base;
 
 namespace PhotoRenamer.Test
 {
@@ -13,7 +14,7 @@ namespace PhotoRenamer.Test
         public FilesTest()
         {
             var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Assets");
-            _files = Base.FilesHelper.FindSupportedFilesRecursively(path).ToArray();
+            _files = FilesHelper.FindSupportedFilesRecursively(path).ToArray();
         }
 
         [TestMethod, Priority(0)]
@@ -27,7 +28,8 @@ namespace PhotoRenamer.Test
         [TestMethod, Priority(1)]
         public void GetMetaData()
         {
-            
+            var expected = new[] {new MediaFile("r", DateTime.Now), new MediaFile("r", DateTime.Now)};
+            var actual = FilesHelper.GetMediaFiles(_files);
         }
     }
 }