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));
}