public void GetPagingTest_If_page_is_zero_or_smaller_returns_throws()
{
var paging = new PagingService();
Exception ex = Assert.Throws <PagingExeption>(() => paging.GetPaging(_inputDialogues, 0));
Assert.Equal(ex.Message, "Page is not be zero or smaller");
}
public void GetPagingTest_If_page_is_too_large_returns_throws()
{
var paging = new PagingService();
Exception ex = Assert.Throws <PagingExeption>(() => paging.GetPaging(_inputDialogues, 2));
Assert.Equal(ex.Message, "Page is too large");
}
public void GetPagingTest_If_collectio_is_null_should_be_returns_throws()
{
var paging = new PagingService();
Exception ex = Assert.Throws <PagingExeption>(() => paging.GetPaging((IEnumerable <Dialogue>)null));
Assert.Equal(ex.Message, "Collection data is not exist");
}
public void GetPagingTest_changeSizePage(int sizePage, int dataCount, bool nextPage)
{
var paging = new PagingService();
var result = paging.GetPaging(_inputDialogues, pageSize: sizePage);
Assert.True(result.Data.Count() == dataCount);
Assert.True(result.Count == _inputDialogues.Count());
Assert.True(result.Page == 1);
Assert.True(result.NextPage == nextPage);
Assert.False(result.PreviousPage);
Assert.True(result.PageSize == sizePage);
}
public void GetPagingTest()
{
var paging = new PagingService();
var result = paging.GetPaging(_inputDialogues);
Assert.True(result.Data.Count() == _inputDialogues.Count());
Assert.True(result.Count == _inputDialogues.Count());
Assert.True(result.Page == 1);
Assert.False(result.NextPage);
Assert.False(result.PreviousPage);
Assert.True(result.PageSize == 20);
}
public void GetPagingTest_changePage(int page, int sizeData, bool nextPage, bool previousPage, string firstElementName, string lastElementName)
{
const int sizePage = 3;
var paging = new PagingService();
var result = paging.GetPaging(_inputDialogues, page, sizePage);
Assert.Equal(result.Data.Count(), sizeData);
Assert.Equal(result.Data.First().Name, firstElementName);
Assert.Equal(result.Data.Last().Name, lastElementName);
Assert.Equal(result.Count, _inputDialogues.Count());
Assert.Equal(result.Page, page);
Assert.Equal(result.NextPage, nextPage);
Assert.Equal(result.PreviousPage, previousPage);
Assert.Equal(result.PageSize, 3);
}