fix : Resolved comments

Author: ana1250

tests/TestableIO.System.IO.Abstractions.TestingHelpers.Tests/MockFileCopyTests.cs

@@ -256,7 +256,10 @@ public async Task MockFile_Copy_ShouldThrowIOExceptionWhenOverwritingWithSameNam
 
         fileSystem.File.WriteAllText(path, "Hello");
 
-        await That(() => fileSystem.File.Copy(path, pathUpper, true)).Throws<IOException>().HasMessage($"The process cannot access the file '{pathUpper}' because it is being used by another process.");
+        void Act() => fileSystem.File.Copy(path, pathUpper, true);
+
+        await That(Act).Throws<IOException>()
+            .WithMessage($"The process cannot access the file '{pathUpper}' because it is being used by another process.");
     }
 
     [Test]

tests/TestableIO.System.IO.Abstractions.TestingHelpers.Tests/MockFileMoveTests.cs

@@ -253,20 +253,16 @@ public async Task MockFile_Move_ShouldThrowNotSupportedExceptionWhenDestinationP
     [WindowsOnly(WindowsSpecifics.Drives)]
     public async Task MockFile_Move_CaseOnlyRename_ShouldChangeCase()
     {
-        string sourceFilePath = @"c:\something\demo.txt";
-        string destFilePath = @"c:\something\DEMO.TXT";
+        var fileSystem = new MockFileSystem();
+        string sourceFilePath = @"c:\temp\demo.txt";
+        string destFilePath = @"c:\temp\DEMO.TXT";
         string sourceFileContent = "content";
-
-        var fileSystem = new MockFileSystem(new Dictionary<string, MockFileData>
-        {
-        {
-                sourceFilePath, new MockFileData(sourceFileContent)}
-        });
+        fileSystem.File.WriteAllText(sourceFilePath, sourceFileContent);
 
         fileSystem.File.Move(sourceFilePath, destFilePath);
 
-        await That(fileSystem.FileExists(destFilePath)).IsTrue();
-        await That(fileSystem.GetFile(destFilePath).TextContents).IsEqualTo(sourceFileContent);
+        await That(fileSystem.File.Exists(destFilePath)).IsTrue();
+        await That(fileSystem.File.ReadAllText(destFilePath)).IsEqualTo(sourceFileContent);
     }
 
     [Test]

tests/TestableIO.System.IO.Abstractions.TestingHelpers.Tests/MockFileTests.cs

@@ -733,17 +733,17 @@ public async Task MockFile_OpenRead_ShouldReturnReadOnlyStream()
 
     [Test]
     [WindowsOnly(WindowsSpecifics.Drives)]
-    public async Task MockFile_Replace_SameSourceAndDestination_ShouldThrowIOException()
+    public async Task MockFile_Replace_SourceAndDestinationDifferOnlyInCasing_ShouldThrowIOException()
     {
-        string sourceFilePath = @"c:\something\demo.txt";
-        string destFilePath = @"c:\something\Demo.txt";
+        var fileSystem = new MockFileSystem();
+        string sourceFilePath = @"c:\temp\demo.txt";
+        string destFilePath = @"c:\temp\DEMO.txt";
         string fileContent = "content";
+        fileSystem.File.WriteAllText(sourceFilePath, fileContent);
 
-        var fileSystem = new MockFileSystem(new Dictionary<string, MockFileData>
-        {
-            { sourceFilePath, new MockFileData(fileContent) }
-        });
+        void Act() => fileSystem.File.Replace(sourceFilePath, destFilePath, null, true);
 
-        await That(() => fileSystem.File.Replace(sourceFilePath, destFilePath, null, true)).Throws<IOException>().HasMessage("The process cannot access the file because it is being used by another process.");
+        await That(Act).Throws<IOException>()
+            .HasMessage("The process cannot access the file because it is being used by another process.");
     }
 }