public void GetDataTest() { var fileInfo = new Mock <IFileInfo>(); fileInfo.Setup(x => x.Exists).Returns(true); fileInfo.Setup(x => x.GetData()).Returns(new byte[] { 4, 56, 168 }); var entity = new FileEntity(fileInfo.Object); var data = entity.GetData(); TestHelper.CheckArray(new byte[] { 4, 56, 168 }, data); }