public void TestDisposeAsYouGo_AnyAndEnumerate()
{
lock (typeof(SimpleDisposable)) {
// ensure we're starting clean
SimpleDisposable.Reset();
var items = SimpleDisposable.GetSome(10).DisposeAsYouGo();
// should call the DAYG 'any'
Assert.True(items.Any());
if (items.Any())
{
// once you start you have to either enumerate the collection
// or dispose of the enumerable.
foreach (var i in items)
{
Console.Write($"each : {i.Number} ");
}
Console.WriteLine();
}
// we can see that a disposable was created, and by disposing of the enumerable
// we have cleaned up.
Assert.False(SimpleDisposable.UndisposedItems.Any());
}
}
public void TestDisposeAsYouGo_WorksWithNonDisposableToo()
{
lock (typeof(SimpleDisposable)) {
// ensure we're starting clean
SimpleDisposable.Reset();
// it's safe to use on non-disposable enumerables too.
using (var items = new[] { "each", "item", "is", "fun" }.DisposeAsYouGo()) {
// Should be some items.
Assert.True(items.Any());
}
// we can see that everything disposable that was created, has been disposed
Assert.False(SimpleDisposable.UndisposedItems.Any());
// because you might have something to dispose of after the collection is run.
using (var items = new[] { "each", "item", "is", "fun" }.DisposeAsYouGo(new SimpleDisposable())) {
// Should be some items.
Assert.True(items.Any());
}
// we can see that everything disposable that was created, has been disposed
Assert.False(SimpleDisposable.UndisposedItems.Any());
var didItWork = false;
// any disposable can be used on the tail end.
using (var items = new[] { "each", "item", "is", "fun" }.DisposeAsYouGo(new OnDispose(() => { didItWork = true; }))) {
// Should be some items.
Assert.True(items.Any());
}
Assert.True(didItWork);
}
}
public void TestDisposeAsYouGo_Any()
{
lock (typeof(SimpleDisposable)) {
// ensure we're starting clean
SimpleDisposable.Reset();
var items = SimpleDisposable.GetSome(10).DisposeAsYouGo();
// should call the DAYG 'any'
Assert.True(items.Any());
if (items.Any())
{
// once you start you have to either enumerate the collection
// or dispose of the enumerable.
items.Dispose();
}
var more = SimpleDisposable.GetSome(0).DisposeAsYouGo();
// should not find any items.
Assert.False(more.Any());
// I've used Any(), but nothing was found.
// I should still dispose of more, but nothing was created.
// we can see that everything disposable that was created, has been disposed
Assert.False(SimpleDisposable.UndisposedItems.Any());
}
}
public void TestLeakOfIDisposable()
{
lock (typeof(SimpleDisposable)) {
// ensure we're starting clean
SimpleDisposable.Reset();
var items = SimpleDisposable.GetSome(10);
// show that this would normally leak
Assert.True(items.Any());
// we can see that a disposable was created and nobody cared.
Assert.True(SimpleDisposable.UndisposedItems.Any());
}
}
public void TestDisposeAsYouGo_AnyWithDisposeAfterLeaksWhenImproperlyUsed()
{
lock (typeof(SimpleDisposable)) {
// ensure we're starting clean
SimpleDisposable.Reset();
// but if we add something to dispose after, we should have disposed of the collection
var evenmore = SimpleDisposable.GetSome(0).DisposeAsYouGo(new SimpleDisposable());
// still no items.
Assert.False(evenmore.Any());
// we can see that a disposable was created and nobody cared.
Assert.True(SimpleDisposable.UndisposedItems.Any());
}
}
public void TestDisposeAsYouGo_AnyWithDisposeAfterIsOkWhenProperlyUsed()
{
lock (typeof(SimpleDisposable)) {
// ensure we're starting clean
SimpleDisposable.Reset();
// but if we add something to dispose after, we should have disposed of the collection
using (var evenmore = SimpleDisposable.GetSome(0).DisposeAsYouGo(new SimpleDisposable())) {
// still no items.
Assert.False(evenmore.Any());
}
// we can see that everything disposable that was created, has been disposed
Assert.False(SimpleDisposable.UndisposedItems.Any());
}
}
