public void CopyFileToExistingFileThrowsIoException()
{
// Arrange
var fs = new MockFileSystem();
const string oldFilePath = "c:\\old\\file1.txt";
const long oldSize = 100;
const string newFilePath = "c:\\new\\file2.txt";
const long newSize = 300;
fs.AddFile(oldFilePath, oldSize);
fs.AddFile(newFilePath, newSize);
// Act
fs.CopyFile(oldFilePath, newFilePath);
// Assert
Assert.Fail();
}
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 CopyFile_FromFileIsNullThrowsArgumentNullException()
{
// Arrange
var fs = new MockFileSystem();
fs.CreateDirectory("c:\\new");
const string newFilePath = "c:\\new\\file2.txt";
//long newSize = 300;
// Act
fs.CopyFile(null, newFilePath);
// Assert
Assert.Fail();
}
public void CopyFile_ToFileIsNullThrowsArgumentNullException()
{
// Arrange
var fs = new MockFileSystem();
fs.CreateDirectory("c:\\new");
const string oldFilePath = "c:\\old\\file1.txt";
const long oldSize = 100;
fs.AddFile(oldFilePath, oldSize);
// Act
fs.CopyFile(oldFilePath, null);
// Assert
Assert.Fail();
}
public void CopyFile_NonExistantFromFileThrowsFileNotFoundException()
{
// Arrange
var fs = new MockFileSystem();
const string oldFilePath = "c:\\old\\file1.txt";
//long oldSize = 100;
const string newFilePath = "c:\\new\\file2.txt";
//long newSize = 300;
// Act
fs.CopyFile(oldFilePath, newFilePath);
// Assert
Assert.Fail();
}