public virtual void TestAttachUrl()
{
server.setResponseBody("../../../TestSDK/resources/attachUrl.json");
Attachment attachment = new Attachment.CreateAttachmentBuilder("http://www.google.com", AttachmentType.LINK)
.SetName("Search Engine").SetDescription("A popular search engine").Build();
Attachment newAttachment = sheetAttachmentResource.AttachUrl(56545654, attachment);
Assert.IsTrue(newAttachment.AttachmentType == AttachmentType.LINK);
Assert.IsTrue(newAttachment.CreatedAt.Value.ToUniversalTime() == DateTime.Parse("2013-02-28T21:52:40-08:00").ToUniversalTime());
Assert.IsTrue(newAttachment.Id == 1205473673275268);
Assert.IsTrue(newAttachment.Description == "A popular search engine");
Assert.IsTrue(newAttachment.Name == "Search Engine");
Assert.IsTrue(newAttachment.Url == "http://google.com");
}