public void WhereManyShouldWork()
{
var a = new CompositeSourceList <CompositeSourceList <int> >();
// Note that clist.Any(v => v>10) returns IObservable<bool>
var b = from clist in a
where clist.Any(v => v > 10)
select clist;
using (var s = b.Subscribe())
{
var x = new CompositeSourceList <int>();
var y = new CompositeSourceList <int>();
a.Add(x);
a.Add(y);
s.Items.Count.Should().Be(0);
x.Add(9);
s.Items.Count.Should().Be(0);
x.Add(11);
s.Items.Count.Should().Be(1);
y.Add(12);
s.Items.Count.Should().Be(2);
x.Remove(11);
s.Items.Count.Should().Be(1);
x.Remove(9);
s.Items.Count.Should().Be(1);
y.Remove(12);
s.Items.Count.Should().Be(0);
}
}
public void ShouldWork()
{
var source0 = new CompositeSourceList <int>();
var source1 = new CompositeSourceList <int>();
var target = source0.Concat(source1);
using (var observableCollection = target.CreateObservableCollection(EqualityComparer <int> .Default))
{
observableCollection.Count.Should().Be(0);
source0.Add(0);
source1.Add(5);
observableCollection.Should().Equal(0, 5);
source0.Add(1);
source1.Add(6);
observableCollection.Should().Equal(0, 1, 5, 6);
source0.Remove(1);
observableCollection.Should().Equal(0, 5, 6);
source1.Remove(5);
observableCollection.Should().Equal(0, 6);
source0.ReplaceAt(0, 10);
observableCollection.Should().Equal(10, 6);
}
}
public void WhereShouldBePerformant()
{
var a = new CompositeSourceList <CompositeSourceList <CompositeSourceList <int> > >();
// Note that clist.Any(v => v>10) returns IObservable<bool>
var b = from clist in a
from t in clist
where t.Any(v => v > 10)
select t.Select(v => v + 1);
using (var s = b.Subscribe())
{
var x = new CompositeSourceList <CompositeSourceList <int> >();
var y = new CompositeSourceList <CompositeSourceList <int> >();
a.Add(x);
a.Add(y);
var xx = new CompositeSourceList <int>();
var yy = new CompositeSourceList <int>();
x.Add(xx);
y.Add(yy);
for (int i = 0; i < 100000; i++)
{
xx.Add(i);
yy.Add(i + 1);
}
s.Items.Count.Should().BeGreaterThan(0);
}
}
public void ShouldWork()
{
var source0 = new CompositeSourceList<int>();
var source1 = new CompositeSourceList<int>();
var target = source0.Concat(source1);
using (var observableCollection = target.CreateObservableCollection(EqualityComparer<int>.Default))
{
observableCollection.Count.Should().Be(0);
source0.Add(0);
source1.Add(5);
observableCollection.Should().Equal(0, 5);
source0.Add(1);
source1.Add(6);
observableCollection.Should().Equal(0, 1, 5, 6);
source0.Remove(1);
observableCollection.Should().Equal(0, 5, 6);
source1.Remove(5);
observableCollection.Should().Equal(0, 6);
source0.ReplaceAt(0, 10);
observableCollection.Should().Equal(10, 6);
}
}
public void DynamicFilterShouldWork()
{
var data = new CompositeSourceList <int>();
var filters = new CompositeSourceList <Func <int, bool> >();
// Compose a dynamic filtering system by using a CompositeSourceList
// to hold a filter.
var target =
from fn in filters
from s in data
where fn(s)
select s;
data.AddRange(new [] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 });
// Convert to an observable collection for testing purposes
using (var oc = target.CreateObservableCollection(EqualityComparer <int> .Default))
{
// Set the filter to be everything greater than 5
filters.Add(v => v > 5);
oc.Should().Equal(6, 7, 8, 9, 10);
// Set the filter to be everything less than 5
filters.ReplaceAt(0, v => v < 5);
oc.Should().Equal(0, 1, 2, 3, 4);
}
}
public void ShouldWorkWithRangeOperators()
{
var source0 = new CompositeSourceList<int>();
var source1 = new CompositeSourceList<int>();
var target = source0.Concat(source1);
using (var observableCollection = target.CreateObservableCollection(EqualityComparer<int>.Default))
{
observableCollection.Count.Should().Be(0);
source0.AddRange(new [] {0,1,2});
observableCollection.Should().Equal(0, 1,2);
source0.Add(1);
source1.Add(6);
observableCollection.Should().Equal(0, 1, 2, 1, 6);
source1.AddRange(new [] {3,4,5});
observableCollection.Should().Equal(0, 1, 2, 1, 6, 3, 4, 5);
source0.InsertRangeAt(1, new [] {6,7});
observableCollection.Should().Equal(0, 6, 7, 1, 2, 1, 6, 3, 4, 5);
source1.InsertRangeAt(1, new [] {6,7});
observableCollection.Should().Equal(0, 6, 7, 1, 2, 1, 6, 6, 7, 3, 4, 5);
source0.Source.Should().Equal(0, 6, 7, 1, 2,1);
source0.Replace(1,99);
observableCollection.Should().Equal(0, 6, 7, 99, 2, 1, 6, 6, 7, 3, 4, 5);
}
}
public void WhereShouldBePerformant()
{
var a = new CompositeSourceList<CompositeSourceList<CompositeSourceList<int>>>();
// Note that clist.Any(v => v>10) returns IObservable<bool>
var b = from clist in a
from t in clist
where t.Any(v => v > 10)
select t.Select(v=>v+1);
using (var s = b.Subscribe())
{
var x = new CompositeSourceList<CompositeSourceList<int>>();
var y = new CompositeSourceList<CompositeSourceList<int>>();
a.Add(x);
a.Add(y);
var xx = new CompositeSourceList<int>();
var yy = new CompositeSourceList<int>();
x.Add(xx);
y.Add(yy);
for (int i = 0; i < 100000; i++)
{
xx.Add(i);
yy.Add(i+1);
}
s.Items.Count.Should().BeGreaterThan(0);
}
}
public void WhereManyShouldWork()
{
var a = new CompositeSourceList<CompositeSourceList<int>>();
// Note that clist.Any(v => v>10) returns IObservable<bool>
var b = from clist in a
where clist.Any(v => v > 10)
select clist;
using (var s = b.Subscribe())
{
var x = new CompositeSourceList<int>();
var y = new CompositeSourceList<int>();
a.Add(x);
a.Add(y);
s.Items.Count.Should().Be(0);
x.Add(9);
s.Items.Count.Should().Be(0);
x.Add(11);
s.Items.Count.Should().Be(1);
y.Add(12);
s.Items.Count.Should().Be(2);
x.Remove(11);
s.Items.Count.Should().Be(1);
x.Remove(9);
s.Items.Count.Should().Be(1);
y.Remove(12);
s.Items.Count.Should().Be(0);
}
}
