public void CopyFileLeavesOldFile()
{
// Arrange
var fs = new MockFileSystem();
const string oldFilePath = "c:\\old\\file1.txt";
const long oldSize = 100;
const string newFilePath = "c:\\new\\file2.txt";
fs.AddFile(oldFilePath, oldSize);
fs.CreateDirectory("c:\\new");
// Act
fs.CopyFile(oldFilePath, newFilePath);
// Assert
Assert.IsTrue(fs.FileExists(oldFilePath));
Assert.AreEqual(oldSize, fs.GetFileLength(oldFilePath));
}
public void GetFileSizeReturnsCorrectValue()
{
// Arrange
var fs = new MockFileSystem();
const int size = 352;
const string file = "c:\\testFile.txt";
fs.AddFile(file, size);
// Act
long value = fs.GetFileLength(file);
// Assert
Assert.AreEqual(size, value);
}