public void FileSystemQuery_GetFilesAndFoldersFromDrive_NullSearchPath_ExpectCurrentValues()
{
//------------Setup for test--------------------------
var dir = new Mock<IDirectory>();
dir.Setup(a => a.GetFileSystemEntries(It.IsAny<string>())).Returns(new[] { "a", "b", "c" });
dir.Setup(a => a.Exists(It.IsAny<string>())).Returns(true);
var query = new FileSystemQuery(dir.Object, new DirectoryEntryFactory(), new ShareCollectionFactory());
var files = new List<string>{"non"};
files = query.GetFilesAndFoldersFromDrive(null, files, 'o');
//------------Assert Results-------------------------
Assert.AreEqual(files.Count, 1);
Assert.AreEqual("non", files[0]);
}