public void CopyFile_FromFileIsDirectoryThrowsArgumentException()
{
// Arrange
var fs = new MockFileSystem();
fs.CreateDirectory("c:\\old");
const string oldFilePath = "c:\\old";
//long oldSize = 100;
const string newFilePath = "c:\\new\\file2.txt";
//long newSize = 300;
// 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 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 FileDelete_OnDirectoryThrowsUnauthorizedAccessException()
{
// Arrange
var fs = new MockFileSystem();
const string fileName = "c:\\test\\";
fs.CreateDirectory(fileName);
// Act
fs.DeleteFile(fileName);
// Assert
Assert.Fail();
}
public void FileDelete_DeletingNonExistantFileDoesNotFail()
{
// Arrange
var fs = new MockFileSystem();
const string fileName = "c:\\test\\Horker.txt";
// Act
fs.DeleteFile(fileName);
// Assert
}
public void DirectoryExistsReturnsTrueForExistingDirectoryWithTrailingSlash()
{
// Arrange
var fs = new MockFileSystem();
const string newdir = "newdir";
fs.CreateDirectory(newdir);
// Act
bool result = fs.DirectoryExists(newdir + "\\");
// Assert
Assert.IsTrue(result);
}
public void DirectoryExistsReturnsTrueForExistingDirectory()
{
// Arrange
var fs = new MockFileSystem();
const string newdir = "newdir";
fs.CreateDirectory(newdir);
// Act
// Assert
Assert.IsTrue(fs.DirectoryExists(newdir));
}
public void DirectoryExistsReturnsFalseForNonexistingDirectory()
{
// Arrange
var fs = new MockFileSystem();
// Act
bool result = fs.DirectoryExists("doesnotexist");
// Assert
Assert.IsFalse(result);
}
public void CreateDirectoryFromCurrent()
{
// Arrange
var fs = new MockFileSystem();
// Act
fs.CreateDirectory("test");
// Assert
Assert.IsTrue(fs.DirectoryExists("c:\\test"));
}
public void InstantiateMockFileSystem()
{
// Arrange
// Act
var fs = new MockFileSystem();
// Assert
Assert.IsNotNull(fs);
}
public void DeleteDirectory_RemovesEmptyDirectory()
{
// Arrange
var fs = new MockFileSystem();
const string dirName = "c:\\test";
fs.CreateDirectory(dirName);
// Act
fs.DeleteDirectory(dirName);
// Assert
Assert.IsFalse(fs.DirectoryExists(dirName));
}
public void DeleteDirectory_RemoveNonEmptyDirectoryThrowsIoException()
{
// Arrange
var fs = new MockFileSystem();
string dirName = "c:\\test";
fs.CreateDirectory(dirName);
fs.AddFile(dirName + "\\file1.txt", 100);
// Act
fs.DeleteDirectory(dirName);
// Assert
Assert.Fail();
}
public void CreateSimpleDirectoryAfterInstantiate()
{
// Arrange
var fs = new MockFileSystem();
const string newdir = "newdir";
// Act
fs.CreateDirectory(newdir);
// Assert
Assert.IsTrue(fs.DirectoryExists(newdir));
}
public void CreateNestedFileFromCurrentDirectory()
{
// Arrange
var fs = new MockFileSystem();
// Act
fs.AddFile("test\\test2\\testFile.txt", 352);
// Assert
Assert.IsTrue(fs.FileExists("c:\\test\\test2\\testFile.txt"));
}
public void CreateNestedDirectoryFromCurrentWithTrailingSlash()
{
// Arrange
var fs = new MockFileSystem();
// Act
fs.CreateDirectory("test\\test2\\");
// Assert
Assert.IsTrue(fs.DirectoryExists("c:\\test\\test2"));
}
public void CreateFileFromAbsolute()
{
// Arrange
var fs = new MockFileSystem();
// Act
fs.AddFile("c:\\testFile.txt", 352);
// Assert
Assert.IsTrue(fs.FileExists("c:\\testFile.txt"));
}
public void CreateExistingDirectoryThrowsIoException()
{
// Arrange
var fs = new MockFileSystem();
fs.CreateDirectory("test");
// Act
fs.CreateDirectory("test");
// Assert
Assert.Fail();
}
public void FileDelete_RemovesFile()
{
// Arrange
var fs = new MockFileSystem();
const string fileName = "c:\\test\\file1.txt";
fs.AddFile(fileName, 255);
// Act
fs.DeleteFile(fileName);
// Assert
Assert.IsFalse(fs.FileExists(fileName));
}
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);
}
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 InstantiateMockFileSystemHasValidCurrentDirectorySet()
{
// Arrange
// Act
var fs = new MockFileSystem();
// Assert
Assert.IsNotNull(fs.GetCurrentDirectory());
Assert.IsTrue(fs.GetCurrentDirectory().Length >= 3);
Assert.IsTrue(Regex.IsMatch(fs.GetCurrentDirectory(), "[A-Za-z]:\\.*", RegexOptions.IgnoreCase));
}
public void CreateAbsoluteDirectoryFromExistingDriveWithTrailingSlash()
{
// Arrange
var fs = new MockFileSystem();
// Act
fs.CreateDirectory("c:\\test\\");
// Assert
Assert.IsTrue(fs.DirectoryExists("c:\\test"));
}
public void DirectoryExistsIsCaseInsensitive()
{
// Arrange
var fs = new MockFileSystem();
fs.CreateDirectory("test\\test2");
// Act
// Assert
Assert.IsTrue(fs.DirectoryExists("C:\\TEST\\test2"));
}
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();
}