public void GroupBy_DotSyntax_CountGroups()
{
GroupingReadOnlyContinuousCollection <int, Person> liveGroup =
_source.GroupBy(p => p.Age);
Assert.AreEqual(10, liveGroup.Count);
Assert.AreEqual(6, liveGroup[5].Count);
}
public void GroupBy_CountGroups()
{
GroupingReadOnlyContinuousCollection <int, Person> liveGroup =
from p in _source
group p by p.Age;
Assert.AreEqual(10, liveGroup.Count);
Assert.AreEqual(6, liveGroup[5].Count);
}
public void ChangeItemInExistingGroup_NewValueNotMatchingCurrentKey_NewGroupFormed()
{
GroupingReadOnlyContinuousCollection <int, Person> liveGroup =
from p in _source
group p by p.Age;
_source[0].Age = 999;
Assert.AreEqual(11, liveGroup.Count);
Assert.AreEqual(1, liveGroup[liveGroup.Count - 1].Count);
}
