public async Task Return_Null_on_Null_Streams()
{
var pagingService = new ODataPagingService();
var response = await pagingService.MergeJsonStreamsAsync(null, null);
Assert.Null(response);
}
public async Task Return_Right_on_Null_Left_Stream()
{
var pagingService = new ODataPagingService();
using var ms = new MemoryStream(Encoding.UTF8.GetBytes("{\"value\": [20]}"));
var response = await pagingService.MergeJsonStreamsAsync(null, ms);
Assert.Equal(ms, response);
}
public async Task Return_Null_on_No_Next_Link()
{
var pagingService = new ODataPagingService();
var requestInfo = new RequestInformation();
var pagingData = new PageLinkData(requestInfo, null);
var nextLink = await pagingService.GetNextPageLinkAsync(pagingData);
Assert.Null(nextLink);
}
public async Task Return_Left_On_Null_Data_In_Right_Stream()
{
var pagingService = new ODataPagingService();
using var leftMs = new MemoryStream(Encoding.UTF8.GetBytes("{\"value\": [20]}"));
using var rightMs = new MemoryStream(Encoding.UTF8.GetBytes("{\"value\": null}"));
var response = await pagingService.MergeJsonStreamsAsync(leftMs, rightMs);
using var reader = new StreamReader(response ?? Stream.Null);
var result = await reader.ReadToEndAsync();
Assert.Equal("{\"value\": [20]}", result);
}
public async Task Return_Null_On_Next_Link_Missing()
{
var pagingService = new ODataPagingService();
var bytes = Encoding.UTF8.GetBytes("{}");
using var ms = new MemoryStream(bytes);
var requestInfo = new RequestInformation();
var pagingData = new PageLinkData(requestInfo, ms);
var nextLink = await pagingService.GetNextPageLinkAsync(pagingData);
Assert.Null(nextLink);
}
public async Task Return_With_Next_Link_From_Right_Stream(string left, string right, string expected)
{
var pagingService = new ODataPagingService();
using var leftMs = new MemoryStream(Encoding.UTF8.GetBytes(left));
using var rightMs = new MemoryStream(Encoding.UTF8.GetBytes(right));
var response = await pagingService.MergeJsonStreamsAsync(leftMs, rightMs);
using var reader = new StreamReader(response ?? Stream.Null);
var result = await reader.ReadToEndAsync();
Assert.Equal(expected, result);
}
public async Task Return_Next_Link_From_Response()
{
var pagingService = new ODataPagingService();
var bytes = Encoding.UTF8.GetBytes("{\"nextLink\": \"https://testlink\"}");
using var ms = new MemoryStream(bytes);
var requestInfo = new RequestInformation();
requestInfo.Headers.Add("Accept", "application/json");
var pagingData = new PageLinkData(requestInfo, ms);
pagingData.ResponseContentHeaders.Add("Content-Type", new string[] { "application/json" });
var nextLink = await pagingService.GetNextPageLinkAsync(pagingData);
Assert.Equal(new Uri("https://testlink"), nextLink);
}
