public void BuildNavigationLinks_BuildsNextLink_WhenSkipIsNotProvided()
{
// Arrange
var url = $"{_faker.Internet.UrlWithPath()}?{_faker.Lorem.Word()}={_faker.Lorem.Word()}";
var expectedSkip = "skip=10";
var expectedUrl = $"{url}&{expectedSkip}";
var uri = new Uri(url);
var pagedList = new PagedListDto <string>
{
HasNextPage = true,
LastItemOnPage = 10
};
// Act
pagedList.BuildNavigationLinks(uri);
// Assert
Assert.That(pagedList.Links, Is.Not.Null);
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNameSelf));
Assert.That(pagedList.Links[ResourceBase.RelationNameSelf], Is.EqualTo(url));
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNameNext), Is.True);
var nextLink = pagedList.Links[ResourceBase.RelationNameNext];
Assert.That(nextLink, Is.Not.Null);
Assert.That(nextLink.ToLower(), Is.EqualTo(expectedUrl));
}
public void BuildNavigationLinks_BuildsSelfLink_WithValidUri()
{
// Arrange
var url = _faker.Internet.UrlWithPath();
var pagedList = new PagedListDto <string>();
// Act
pagedList.BuildNavigationLinks(url);
// Assert
Assert.That(pagedList.Links, Is.Not.Null);
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNameSelf), Is.True);
Assert.That(pagedList.Links[ResourceBase.RelationNameSelf], Is.EqualTo(url));
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNameNext), Is.False);
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNamePrevious), Is.False);
}
public void BuildNavigationLinks_BuildsAllLinks_WhenPagedListHasPreviousAndNextPage()
{
// Arrange
var urlPrefix = $"{_faker.Internet.UrlWithPath()}?{_faker.Lorem.Word()}={_faker.Lorem.Word()}";
var url = $"{urlPrefix}&skip=20&limit=5";
var expectedPreviousUrl = $"{urlPrefix}&skip=15&limit=5";
var expectedNextUrl = $"{urlPrefix}&skip=25&limit=5";
var uri = new Uri(url);
var pagedList = new PagedListDto <string>
{
HasPreviousPage = true,
HasNextPage = true,
FirstItemOnPage = 21,
LastItemOnPage = 25,
PageSize = 5
};
// Act
pagedList.BuildNavigationLinks(uri);
// Assert
Assert.That(pagedList.Links, Is.Not.Null);
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNameSelf));
Assert.That(pagedList.Links[ResourceBase.RelationNameSelf], Is.EqualTo(url));
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNamePrevious), Is.True);
var previousLink = pagedList.Links[ResourceBase.RelationNamePrevious];
Assert.That(previousLink, Is.Not.Null);
Assert.That(previousLink.ToLower(), Is.EqualTo(expectedPreviousUrl));
Assert.That(pagedList.Links.ContainsKey(ResourceBase.RelationNameNext), Is.True);
var nextLink = pagedList.Links[ResourceBase.RelationNameNext];
Assert.That(nextLink, Is.Not.Null);
Assert.That(nextLink.ToLower(), Is.EqualTo(expectedNextUrl));
}
/// <summary>
/// Fills navigation for the paged list with the hyperlinks: self, previous and next, when applicable.
/// </summary>
public static void BuildNavigationLinks <T>(this PagedListDto <T> pagedList, string currentUri)
{
pagedList.BuildNavigationLinks(new Uri(currentUri));
}