public void RollBackward_WhenAtLowerVersion_DoesNothing()
{
var version = 1;
var targetVersion = 2;
provider.Setup(x => x.GetVersion()).Returns(version);
migrator.RollBackward(targetVersion);
provider.Verify(x => x.Execute(It.IsAny <string>()), Times.Never);
provider.Verify(x => x.SetVersion(It.IsAny <int>()), Times.Never);
}
