public void IsSorted_TrueWhenSorted()
{
IBindingList bindingList = SortableBindingListFactory.Create();
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Id");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Ascending);
Assert.IsTrue(bindingList.IsSorted);
}
public void RemoveSort_SetSortPropertyToNull()
{
IBindingList bindingList = SortableBindingListFactory.Create();
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Id");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Ascending);
bindingList.RemoveSort();
Assert.IsNull(bindingList.SortProperty);
}
public void RemoveSort_ReturnFalseForIsSorted()
{
IBindingList bindingList = SortableBindingListFactory.Create();
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Id");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Ascending);
bindingList.RemoveSort();
Assert.IsFalse(bindingList.IsSorted);
}
public void SetSortDirectionCore()
{
IBindingList bindingList = SortableBindingListFactory.Create();
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Id");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Descending);
ListSortDirection actual = bindingList.SortDirection;
ListSortDirection expected = ListSortDirection.Descending;
Assert.AreEqual(expected, actual);
}
public void Find_ItemNotFound_ReturnMinusOne()
{
IBindingList bindingList = SortableBindingListFactory.Create();
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Address");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Descending);
object key = new GenericComparableAddress("4");
int actual = bindingList.Find(propertyDescriptor, key);
int expected = -1;
Assert.AreEqual(expected, actual);
}
public void ApplySort_GenericComparable_Asc()
{
IBindingList bindingList = SortableBindingListFactory.Create();
IList sortedByAddressAscending = new[]
{
bindingList[0],
bindingList[1],
bindingList[2]
};
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Address");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Ascending);
AssertSortableBindingList.HaveSameElements(sortedByAddressAscending, bindingList);
}
public void SortOnPropertiesOfSameType()
{
IBindingList bindingList = SortableBindingListFactory.Create();
IList sortedByFirstNameAscending = new[]
{
bindingList[0],
bindingList[1],
bindingList[2]
};
IList sortedByFirstNameDescending = new[]
{
bindingList[2],
bindingList[1],
bindingList[0]
};
IList sortedByLastNameAscending = new[]
{
bindingList[1],
bindingList[2],
bindingList[0]
};
IList sortedByLastNameDescending = new[]
{
bindingList[0],
bindingList[2],
bindingList[1]
};
PropertyDescriptor firstNameProperty = PropertyDescriptorHelper.Get(bindingList[0], "FirstName");
PropertyDescriptor lastNameProperty = PropertyDescriptorHelper.Get(bindingList[0], "LastName");
bindingList.ApplySort(lastNameProperty, ListSortDirection.Descending);
AssertSortableBindingList.HaveSameElements(sortedByLastNameDescending, bindingList);
bindingList.ApplySort(firstNameProperty, ListSortDirection.Descending);
AssertSortableBindingList.HaveSameElements(sortedByFirstNameDescending, bindingList);
bindingList.ApplySort(firstNameProperty, ListSortDirection.Ascending);
AssertSortableBindingList.HaveSameElements(sortedByFirstNameAscending, bindingList);
bindingList.ApplySort(lastNameProperty, ListSortDirection.Ascending);
AssertSortableBindingList.HaveSameElements(sortedByLastNameAscending, bindingList);
}
public void ReusePropertyComparerIfSortIsAppliedForSecondTime()
{
IBindingList bindingList = SortableBindingListFactory.Create();
IList sortedByAddressDescneding = new[]
{
bindingList[2],
bindingList[1],
bindingList[0]
};
PropertyDescriptor propertyDescriptor = PropertyDescriptorHelper.Get(bindingList[0], "Address");
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Descending);
bindingList.ApplySort(propertyDescriptor, ListSortDirection.Descending);
AssertSortableBindingList.HaveSameElements(sortedByAddressDescneding, bindingList);
}