public void NextPageOnFirstPage()
{
var context = new PaginationContext(EmptyQuery, 10);
var target = new PaginationQuery(context);
Assert.Equal("?page[number]=1", target.NextPage);
}
public void NextPageWorks()
{
var context = new PaginationContext(GetQuery(Constants.PageNumberQueryName, "4"), 10);
var target = new PaginationQuery(context);
Assert.Equal("?page[number]=5", target.NextPage);
}
public void NoPrevious()
{
var context = new PaginationContext(GetQuery(Constants.PageNumberQueryName, "0"), 10);
var target = new PaginationQuery(context);
Assert.Null(target.PreviousPage);
}
public void PreviousPageWorks()
{
var context = new PaginationContext(GetQuery(Constants.QueryNames.PageNumber, "4"), 10);
var target = new PaginationQuery(context);
Assert.Equal("?page[number]=3", target.PreviousPage);
}
public void NoContext()
{
var target = new PaginationQuery(null);
Assert.Null(target.FirstPage);
Assert.Null(target.NextPage);
Assert.Null(target.PreviousPage);
}
public void SupportsOtherQueryParams()
{
var context = new PaginationContext(GetQuery(Constants.PageNumberQueryName, "3").Concat(GetQuery("something", "hello")), 10);
var target = new PaginationQuery(context);
Assert.Equal("?page[number]=4&something=hello", target.NextPage);
Assert.Equal("?page[number]=2&something=hello", target.PreviousPage);
Assert.Equal("?page[number]=0&something=hello", target.FirstPage);
}
public void FirstPageWorks()
{
var context = new PaginationContext(EmptyQuery, 10);
var target = new PaginationQuery(context);
Assert.Equal("?page[number]=0", target.FirstPage);
context = new PaginationContext(GetQuery(Constants.PageNumberQueryName, "0"), 10);
target = new PaginationQuery(context);
Assert.Equal("?page[number]=0", target.FirstPage);
context = new PaginationContext(GetQuery(Constants.PageNumberQueryName, "4"), 10);
target = new PaginationQuery(context);
Assert.Equal("?page[number]=0", target.FirstPage);
}
private JToken CreateTopLevelLinks(SerializationContext serializationContext, int itemCount = 0)
{
var result = new JObject
{
["self"] = serializationContext.BaseUrl
};
if (serializationContext.QueryContext?.Pagination != null)
{
var queryStrings = new PaginationQuery(serializationContext.QueryContext.Pagination);
var left = new Uri(serializationContext.BaseUrl).GetComponents(UriComponents.SchemeAndServer | UriComponents.Path, UriFormat.Unescaped);
if (queryStrings.FirstPage != null)
{
result["first"] = new Uri(left + queryStrings.FirstPage);
}
if (queryStrings.NextPage != null && itemCount >= serializationContext.QueryContext.Pagination.PerPage)
{
result["next"] = new Uri(left + queryStrings.NextPage);
}
if (queryStrings.PreviousPage != null)
{
result["prev"] = new Uri(left + queryStrings.PreviousPage);
}
}
return result;
}
private JToken CreateTopLevelLinks(int count)
{
var result = new JObject
{
["self"] = _baseUrl
};
var queryStrings = new PaginationQuery(_paginationContext);
var left = _baseUrl.GetLeftPart(UriPartial.Path);
if (queryStrings.FirstPage != null)
{
result["first"] = new Uri(left + queryStrings.FirstPage);
}
if (queryStrings.NextPage != null && count >= _paginationContext.PerPage)
{
result["next"] = new Uri(left + queryStrings.NextPage);
}
if (queryStrings.PreviousPage != null)
{
result["prev"] = new Uri(left + queryStrings.PreviousPage);
}
return result;
}
