public void BasicItemDictionary()
{
ItemDictionary <ProjectItemInstance> items = new ItemDictionary <ProjectItemInstance>();
// Clearing empty collection
items.Clear();
// Enumeration of empty collection
using (IEnumerator <ProjectItemInstance> enumerator = items.GetEnumerator())
{
Assert.Equal(false, enumerator.MoveNext());
ObjectModelHelpers.AssertThrows(typeof(InvalidOperationException), delegate { object o = ((IEnumerator)enumerator).Current; });
Assert.Equal(null, enumerator.Current);
}
List <ProjectItemInstance> list = new List <ProjectItemInstance>();
foreach (ProjectItemInstance item in items)
{
list.Add(item);
}
Assert.Equal(0, list.Count);
// Cause an empty list for type 'x' to be added
ICollection <ProjectItemInstance> itemList = items["x"];
// Enumerate empty collection, with an empty list in it
foreach (ProjectItemInstance item in items)
{
list.Add(item);
}
Assert.Equal(0, list.Count);
// Add and remove some items
ProjectItemInstance item1 = GetItemInstance("i", "i1");
Assert.Equal(false, items.Remove(item1));
Assert.Equal(0, items["j"].Count);
items.Add(item1);
Assert.Equal(1, items["i"].Count);
Assert.Equal(item1, items["i"].First());
ProjectItemInstance item2 = GetItemInstance("i", "i2");
items.Add(item2);
ProjectItemInstance item3 = GetItemInstance("j", "j1");
items.Add(item3);
// Enumerate to verify contents
list = new List <ProjectItemInstance>();
foreach (ProjectItemInstance item in items)
{
list.Add(item);
}
list.Sort(ProjectItemInstanceComparer);
Assert.Equal(item1, list[0]);
Assert.Equal(item2, list[1]);
Assert.Equal(item3, list[2]);
// Direct operations on the enumerator
using (IEnumerator <ProjectItemInstance> enumerator = items.GetEnumerator())
{
Assert.Equal(null, enumerator.Current);
Assert.Equal(true, enumerator.MoveNext());
Assert.NotNull(enumerator.Current);
enumerator.Reset();
Assert.Equal(null, enumerator.Current);
Assert.Equal(true, enumerator.MoveNext());
Assert.NotNull(enumerator.Current);
}
}
