diff --git a/TestHelpers.Tests/MockFileCopyTests.cs b/TestHelpers.Tests/MockFileCopyTests.cs
index 7dffee39f..1a38846d9 100644
--- a/TestHelpers.Tests/MockFileCopyTests.cs
+++ b/TestHelpers.Tests/MockFileCopyTests.cs
@@ -271,5 +271,29 @@ public void MockFile_Copy_ShouldThrowArgumentExceptionWhenTargetIsEmpty_Message(
 
             Assert.That(exception.Message, Is.StringStarting("Empty file name is not legal."));
         }
+
+        [Test]
+        public void MockFile_Copy_ShouldThrowFileNotFoundExceptionWhenSourceFileDoesNotExist_Message()
+        {
+            var sourceFileName = XFS.Path(@"c:\source\demo.txt");
+            var destFileName = XFS.Path(@"c:\destination\demo.txt");
+            var fileSystem = new MockFileSystem();
+            // The "real" System.IO.File throws a FileNotFoundException before checking if that the destination folder exists, therefore there is no need to create it.
+
+            var exception = Assert.Throws<FileNotFoundException>(() => fileSystem.File.Copy(sourceFileName, destFileName));
+            Assert.That(exception.Message, Is.EqualTo(XFS.Path(@"Could not find file 'c:\source\demo.txt'.")));
+        }
+
+        [Test]
+        public void MockFile_Copy_ShouldThrowFileNotFoundExceptionWhenSourceFileDoesNotExist_FileName()
+        {
+            var sourceFileName = XFS.Path(@"c:\source\demo.txt");
+            var destFileName = XFS.Path(@"c:\destination\demo.txt");
+            var fileSystem = new MockFileSystem();
+            // The "real" System.IO.File throws a FileNotFoundException before checking if that the destination folder exists, therefore there is no need to create it.
+
+            var exception = Assert.Throws<FileNotFoundException>(() => fileSystem.File.Copy(sourceFileName, destFileName));
+            Assert.That(exception.FileName, Is.EqualTo(sourceFileName));
+        }
     }
 }
\ No newline at end of file
diff --git a/TestHelpers.Tests/MockFileInfoTests.cs b/TestHelpers.Tests/MockFileInfoTests.cs
index 659820d56..9c0f186c1 100644
--- a/TestHelpers.Tests/MockFileInfoTests.cs
+++ b/TestHelpers.Tests/MockFileInfoTests.cs
@@ -476,5 +476,39 @@ public void MockFileInfo_MoveTo_ShouldUpdateFileInfoDirectoryAndFullName()
             Assert.AreEqual(fileInfo.DirectoryName, destinationFolder);
             Assert.AreEqual(fileInfo.FullName, destination);
         }
+
+        [Test]
+        public void MockFileInfo_CopyTo_ShouldThrowFileNotFoundExceptionWhenSourceFileDoesNotExist_Message()
+        {
+            //Arrange
+            var sourceFileName = XFS.Path(@"c:\source\demo.txt");
+            var destFileName = XFS.Path(@"c:\destination\demo.txt");
+
+            var fileSystem = new MockFileSystem();
+            var fileInfo = fileSystem.FileInfo.FromFileName(sourceFileName);
+            // The "real" FileInfo throws a FileNotFoundException before checking if that the destination folder exists, therefore there is no need to create it.
+
+            //Act
+            var exception = Assert.Throws<FileNotFoundException>(() => fileInfo.CopyTo(destFileName));
+
+            Assert.That(exception.Message, Is.EqualTo(XFS.Path(@"Could not find file 'c:\source\demo.txt'.")));
+        }
+
+        [Test]
+        public void MockFileInfo_CopyTo_ShouldThrowFileNotFoundExceptionWhenSourceFileDoesNotExist_FileName()
+        {
+            //Arrange
+            var sourceFileName = XFS.Path(@"c:\source\demo.txt");
+            var destFileName = XFS.Path(@"c:\destination\demo.txt");
+
+            var fileSystem = new MockFileSystem();
+            var fileInfo = fileSystem.FileInfo.FromFileName(sourceFileName);
+            // The "real" FileInfo throws a FileNotFoundException before checking if that the destination folder exists, therefore there is no need to create it.
+
+            //Act
+            var exception = Assert.Throws<FileNotFoundException>(() => fileInfo.CopyTo(destFileName));
+
+            Assert.That(exception.FileName, Is.EqualTo(sourceFileName));
+        }
     }
 }
\ No newline at end of file
diff --git a/TestingHelpers/MockFile.cs b/TestingHelpers/MockFile.cs
index b83489935..6d8c48beb 100644
--- a/TestingHelpers/MockFile.cs
+++ b/TestingHelpers/MockFile.cs
@@ -112,14 +112,20 @@ public override void Copy(string sourceFileName, string destFileName, bool overw
             mockFileDataAccessor.PathVerifier.IsLegalAbsoluteOrRelative(sourceFileName, "sourceFileName");
             mockFileDataAccessor.PathVerifier.IsLegalAbsoluteOrRelative(destFileName, "destFileName");
 
+            var sourceFileExists = mockFileDataAccessor.FileExists(sourceFileName);
+            if (!sourceFileExists)
+            {
+                throw new FileNotFoundException(string.Format(CultureInfo.InvariantCulture, Properties.Resources.COULD_NOT_FIND_FILE_EXCEPTION, sourceFileName), sourceFileName);
+            }
+
             var directoryNameOfDestination = mockPath.GetDirectoryName(destFileName);
             if (!mockFileDataAccessor.Directory.Exists(directoryNameOfDestination))
             {
                 throw new DirectoryNotFoundException(string.Format(CultureInfo.InvariantCulture, Properties.Resources.COULD_NOT_FIND_PART_OF_PATH_EXCEPTION, destFileName));
             }
 
-            var fileExists = mockFileDataAccessor.FileExists(destFileName);
-            if (fileExists)
+            var destFileExists = mockFileDataAccessor.FileExists(destFileName);
+            if (destFileExists)
             {
                 if (!overwrite)
                 {
diff --git a/TestingHelpers/Properties/Resources.Designer.cs b/TestingHelpers/Properties/Resources.Designer.cs
index ece6e4eaf..1efa20d96 100644
--- a/TestingHelpers/Properties/Resources.Designer.cs
+++ b/TestingHelpers/Properties/Resources.Designer.cs
@@ -69,6 +69,15 @@ internal static string ACCESS_TO_THE_PATH_IS_DENIED {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Could not find file &apos;{0}&apos;..
+        /// </summary>
+        internal static string COULD_NOT_FIND_FILE_EXCEPTION {
+            get {
+                return ResourceManager.GetString("COULD_NOT_FIND_FILE_EXCEPTION", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Could not find a part of the path &apos;{0}&apos;..
         /// </summary>
diff --git a/TestingHelpers/Properties/Resources.resx b/TestingHelpers/Properties/Resources.resx
index d47ca2bdc..6d1bb51a2 100644
--- a/TestingHelpers/Properties/Resources.resx
+++ b/TestingHelpers/Properties/Resources.resx
@@ -141,4 +141,7 @@
   <data name="FILENAME_CANNOT_BE_NULL" xml:space="preserve">
     <value>File name cannot be null.</value>
   </data>
+  <data name="COULD_NOT_FIND_FILE_EXCEPTION" xml:space="preserve">
+    <value>Could not find file '{0}'.</value>
+  </data>
 </root>
\ No newline at end of file