public void FindNextInsulin_ReturnsNullIfNoNextInsulin()
{
var insulin1 = new Insulin { DateTime = DateTime.Now };
var insulin2 = new Insulin { DateTime = DateTime.Now.AddHours(-1) };
factories.Setup(f => f.Insulins).Returns(new List<Insulin> { insulin2 });
var finder = new FinderImpl(factories.Object);
var insulin = finder.FindNextInsulin(insulin1);
Assert.IsNull(insulin);
}
public void FindNextInsulin_ReturnsFirstChronologicallyFollowingInsulin()
{
var insulin1 = new Insulin { DateTime = DateTime.Now };
var insulin2 = new Insulin { DateTime = DateTime.Now.AddHours(2) };
var insulin3 = new Insulin { DateTime = DateTime.Now.AddHours(1) };
factories.Setup(f => f.Insulins).Returns(new List<Insulin> { insulin2, insulin3 });
var finder = new FinderImpl(factories.Object);
var insulin = finder.FindNextInsulin(insulin1);
Assert.AreSame(insulin3, insulin);
}
