public void PageNumber_Above_RecordCount_Returns_Empty_List()
{
//arrange
var data = new[] {1, 2, 3};
//act
var pagedList = data.ToPagedList(2, 3);
//assert
Assert.Equal(0, pagedList.Count);
}
public void PageSize_Below_One_Throws_ArgumentOutOfRange()
{
//arrange
var data = new[] {1, 2, 3};
//act
Assert.ThrowsDelegate act = () => data.ToPagedList(1, 0);
//assert
Assert.Throws<ArgumentOutOfRangeException>(act);
}
public void DataSet_OneThroughSix_PageSize_Three_PageIndex_Zero_FirstValue_Is_One()
{
//arrange
var data = new[] { 1, 2, 3, 4, 5, 6 };
//act
var pagedList = data.ToPagedList(0, 3);
//assert
Assert.Equal(1, pagedList[0]);
}
public void DataSet_OneAndTwo_PageSize_One_PageIndex_One_FirstValue_Is_Two()
{
//arrange
var data = new[] { 1, 2 };
//act
var pagedList = data.ToPagedList(1, 1);
//assert
Assert.Equal(2, pagedList[0]);
}
public void DataSet_Of_One_Through_Five_PageSize_Of_Two_PageIndex_Of_One_First_Item_Is_Three()
{
//arrange
var data = new[] {1, 2, 3, 4, 5};
//act
var pagedList = data.ToPagedList(1, 2);
//assert
Assert.Equal(3, pagedList[0]);
}
public void DataSet_OneThroughThree_PageSize_One_PageNumber_Three_IsLastPage_True()
{
//arrange
var data = new[] {1, 2, 3};
//act
var pagedList = data.ToPagedList(3, 1);
//assert
Assert.Equal(true, pagedList.IsLastPage);
}
public void DataSet_OneThroughThree_PageSize_One_PageNumber_Three_HasNextPage_False()
{
//arrange
var data = new[] {1, 2, 3};
//act
var pagedList = data.ToPagedList(3, 1);
//assert
Assert.Equal(false, pagedList.HasNextPage);
}
public void Data_Is_Filtered_By_PageSize()
{
//arrange
var data = new[] {1, 2, 3, 4, 5};
//act
var pagedList = data.ToPagedList(2, 2);
//assert
Assert.Equal(2, pagedList.Count);
//### related test below
//act
pagedList = data.ToPagedList(3, 2);
//assert
Assert.Equal(1, pagedList.Count);
}
public void PageSize_Is_Preserved()
{
//arrange
var data = new[] {1, 2, 3, 4, 5};
//act
var pagedList = data.ToPagedList(2, 2);
//assert
Assert.Equal(2, pagedList.PageSize);
}
public void TotalCount_Is_Preserved()
{
//arrange
var data = new[] {1, 2, 3, 4, 5};
//act
var pagedList = data.ToPagedList(2, 2);
//assert
Assert.Equal(5, pagedList.TotalItemCount);
}
public void PageIndex_Below_Zero_Throws_ArgumentOutOfRange()
{
//arrange
var data = new[] {1, 2, 3};
//act
Assert.ThrowsDelegate act = () => data.ToPagedList(-1, 1);
//assert
Assert.Throws<ArgumentOutOfRangeException>(act);
}
