public static void InsertTest()
{
Guid[] anArray = { Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid() };
ObservableList <Guid> col0 = new ObservableList <Guid>((IEnumerable <Guid>)anArray);
ObservableList <Guid> col1 = new ObservableList <Guid>((IEnumerable <Guid>)anArray);
ObservableList <Guid> col3 = new ObservableList <Guid>((IEnumerable <Guid>)anArray);
//inserting item at the beginning.
Guid g0 = Guid.NewGuid();
col0.Insert(0, g0);
Assert.Equal(g0, col0[0]);
// inserting item in the middle
Guid g1 = Guid.NewGuid();
col1.Insert(1, g1);
Assert.Equal(g1, col1[1]);
// inserting item at the end.
Guid g3 = Guid.NewGuid();
col3.Insert(col3.Count, g3);
Assert.Equal(g3, col3[col3.Count - 1]);
string[] anArrayString = new string[] { "one", "two", "three", "four" };
ObservableList <string> collection = new ObservableList <string>((IEnumerable <string>)anArrayString);
CollectionAndPropertyChangedTester helper = new CollectionAndPropertyChangedTester();
helper.AddOrInsertItemTest(collection, "seven", 2);
helper.AddOrInsertItemTest(collection, "zero", 0);
helper.AddOrInsertItemTest(collection, "eight", collection.Count);
}
public static void AddTest()
{
string[] anArray = { "one", "two", "three" };
ObservableList <string> col = new ObservableList <string>(anArray);
CollectionAndPropertyChangedTester helper = new CollectionAndPropertyChangedTester();
helper.AddOrInsertItemTest(col, "four");
}
public static void ReplaceItemTest()
{
string[] anArray = new string[] { "one", "two", "three", "four" };
ObservableList <string> collection = new ObservableList <string>((IEnumerable <string>)anArray);
CollectionAndPropertyChangedTester helper = new CollectionAndPropertyChangedTester();
helper.ReplaceItemTest(collection, 1, "seven");
helper.ReplaceItemTest(collection, 3, "zero");
}
public static void ClearTest()
{
string[] anArray = { "one", "two", "three", "four" };
ObservableList <string> col = new ObservableList <string>(anArray);
col.Clear();
Assert.Equal(0, col.Count);
Assert.Empty(col);
AssertExtensions.Throws <ArgumentOutOfRangeException>("index", () => col[1]);
//tests that the collectionChanged events are fired.
CollectionAndPropertyChangedTester helper = new CollectionAndPropertyChangedTester();
col = new ObservableList <string>(anArray);
helper.ClearTest(col);
}
public static void RemoveTest()
{
// trying to remove item in collection.
string[] anArray = { "one", "two", "three", "four" };
ObservableList <string> col = new ObservableList <string>(anArray);
CollectionAndPropertyChangedTester helper = new CollectionAndPropertyChangedTester();
helper.RemoveItemTest(col, 2, "three", true, hasDuplicates: false);
// trying to remove item not in collection.
anArray = new string[] { "one", "two", "three", "four" };
col = new ObservableList <string>(anArray);
helper = new CollectionAndPropertyChangedTester();
helper.RemoveItemTest(col, -1, "three2", false, hasDuplicates: false);
// removing null
anArray = new string[] { "one", "two", "three", "four" };
col = new ObservableList <string>(anArray);
helper = new CollectionAndPropertyChangedTester();
helper.RemoveItemTest(col, -1, null, false, hasDuplicates: false);
// trying to remove item in collection that has duplicates.
anArray = new string[] { "one", "three", "two", "three", "four" };
col = new ObservableList <string>(anArray);
helper = new CollectionAndPropertyChangedTester();
helper.RemoveItemTest(col, 1, "three", true, hasDuplicates: true);
// want to ensure that there is one "three" left in collection and not both were removed.
int occurrencesThree = 0;
foreach (var item in col)
{
if (item.Equals("three"))
{
occurrencesThree++;
}
}
Assert.Equal(1, occurrencesThree);
}
public static void RemoveAtTest()
{
Guid[] anArray = { Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid() };
ObservableList <Guid> col0 = new ObservableList <Guid>((IEnumerable <Guid>)anArray);
ObservableList <Guid> col1 = new ObservableList <Guid>((IEnumerable <Guid>)anArray);
ObservableList <Guid> col2 = new ObservableList <Guid>((IEnumerable <Guid>)anArray);
col0.RemoveAt(0);
string collectionString = "";
foreach (var item in col1)
{
collectionString += item + ", ";
}
Assert.False(col0.Contains(anArray[0]), "Collection0 should no longer contain the item: " + anArray[0] + " Collection: " + collectionString);
col1.RemoveAt(1);
collectionString = "";
foreach (var item in col1)
{
collectionString += item + ", ";
}
Assert.False(col1.Contains(anArray[1]), "Collection1 should no longer contain the item: " + anArray[1] + " Collection: " + collectionString);
col2.RemoveAt(2);
collectionString = "";
foreach (var item in col2)
{
collectionString += item + ", ";
}
Assert.False(col2.Contains(anArray[2]), "Collection2 should no longer contain the item: " + anArray[2] + " Collection: " + collectionString);
string[] anArrayString = { "one", "two", "three", "four" };
ObservableList <string> col = new ObservableList <string>(anArrayString);
CollectionAndPropertyChangedTester helper = new CollectionAndPropertyChangedTester();
helper.RemoveItemAtTest(col, 1);
}