public void GivenPageWithHalfPageExpected_WhenGetNextPageIndexCalled_ThenNextPageIndexIsRecalculatedCorrectly()
{
var currentPageIndex = 5;
var newPageIndex = PageAdjuster.GetNextPageIndex(new PageInfo(currentPageIndex, DefaultPageSize), 125);
newPageIndex.Should().Be(currentPageIndex * 2 - 1);
}
public void GivenFirstPageWithHalfPageExpected_WhenGetNextPageIndexCalled_ThenNextPageIndexIsTheSame()
{
var firstPageIndex = 1;
var newPageIndex = PageAdjuster.GetNextPageIndex(new PageInfo(firstPageIndex, DefaultPageSize), 125);
newPageIndex.Should().Be(firstPageIndex);
}
public void GivenPageWithIndexHigherThanFirst_WhenGetNextPageIndexWithDecreasedPageSizeTwiceIsCalled_ThenNextPageIndexIsRecalculatedCorrectly()
{
var currentPageIndex = 5;
var newPageIndex = PageAdjuster.GetNextPageIndex(new PageInfo(currentPageIndex, DefaultPageSize), 125);
newPageIndex.Should().Be(currentPageIndex * 2 - 1);
}
public void GivenPageWithFirstIndex_WhenGetNextPageIndexWithDecreasedPageSizeTwiceIsCalled_ThenNextPageIndexIsTheSame()
{
var firstPageIndex = 1;
var newPageIndex = PageAdjuster.GetNextPageIndex(new PageInfo(firstPageIndex, DefaultPageSize), 125);
newPageIndex.Should().Be(firstPageIndex);
}
public void GivenPageWithDecreasedTwiceDefaultPageSize_WhenGetNextPageIndexWithDecreasedPageSizeTwiceIsCalled_ThenNextPageIndexIsCalculatedCorrectly()
{
var currentPageIndex = 5;
var currentPageSize = DefaultPageSize / 2;
var halfPageSize = currentPageSize / 2;
var newPageIndex = PageAdjuster.GetNextPageIndex(new PageInfo(currentPageIndex, currentPageSize), halfPageSize);
newPageIndex.Should().Be(currentPageIndex * 2 - 1);
}