public void FileSystemQuery_GetFoldersAndFiles_NonExistentPath_ExpectResults()
{
//------------Setup for test--------------------------
var dir = new Mock<IDirectory>();
dir.Setup(a => a.Exists("bob")).Returns(false);
dir.Setup(a => a.Exists("bo")).Returns(true);
dir.Setup(a => a.GetFileSystemEntries(It.IsAny<string>(),It.IsAny<string>())).Returns(new[] { "b", "d", "f" });
//------------Execute Test---------------------------
var files = FileSystemQuery.GetFoldersAndFiles("bob", 'o', dir.Object);
//------------Assert Results-------------------------
Assert.AreEqual(files.Count, 3);
Assert.AreEqual(files[0], "b");
Assert.AreEqual(files[1], "d");
Assert.AreEqual(files[2], "f");
}