public async Task MultipleSectionsArticleWithSectionSlugViewDataCanonicalUrlShouldNotBeNull()
        {
            const string articleSlug = "physical-activity";
            const string sectionSlug = "physical-activity-overview";

            var sectionOne = new ProcessedSection("Overview", "physical-activity-overview", string.Empty, "body", new List <Profile>(), new List <Document>(), new List <Alert>());
            var sectionTwo = new ProcessedSection("Types of Physical Activity", TextHelper.AnyString, TextHelper.AnyString, "body", new List <Profile>(), new List <Document>(), new List <Alert>());

            var article = new ProcessedArticle(string.Empty, string.Empty, string.Empty, string.Empty, string.Empty,
                                               new List <ProcessedSection>()
            {
                sectionOne, sectionTwo
            }, string.Empty, string.Empty, string.Empty,
                                               new List <Crumb>()
            {
            }, new List <Alert>(), new NullTopic(), new List <Alert>(), null, new DateTime(), new bool());

            var response = new HttpResponse(200, article, string.Empty);

            _articleRepository.Setup(o => o.Get(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>())).ReturnsAsync(response);

            var view = await _controller.ArticleWithSection(articleSlug, sectionSlug, DefaultMessage, "", "") as ViewResult;;

            view.ViewData["CanonicalUrl"].Should().NotBeNull();

            string canonicalUrl = (string)view.ViewData["CanonicalUrl"];

            canonicalUrl.Should().Contain("physical-activity");
            canonicalUrl.Should().NotContain("physical-activity-overview");
        }