Get latest blog post

src/Robware.Api.Blog.Tests/BlogControllerTests.cs

@@ -108,5 +108,29 @@ namespace Robware.Api.Blog.Tests {
 			var controller = new BlogController(logger, repo);
 			(await controller.GetLatestPosts(1, 1000)).Result.Should().BeOfType<NotFoundObjectResult>();
 		}
+
+		[Fact]
+		public async Task GetLatestPost_ReturnsBlogPosts() {
+			var logger = Substitute.For<ILogger<BlogController>>();
+			var repo = Substitute.For<IBlogRepository>();
+
+			repo.GetLatestPostAsync().Returns(new BlogPost());
+
+			var expectation = new BlogPost();
+
+			var controller = new BlogController(logger, repo);
+			(await controller.GetLatestPost()).Value.Should().BeEquivalentTo(expectation);
+		}
+
+		[Fact]
+		public async Task GetLatestPost_WhenNoPostExists_Returns404() {
+			var logger = Substitute.For<ILogger<BlogController>>();
+			var repo = Substitute.For<IBlogRepository>();
+
+			repo.GetLatestPostAsync().Throws(new ItemNotFoundException("", null));
+
+			var controller = new BlogController(logger, repo);
+			(await controller.GetLatestPost()).Result.Should().BeOfType<NotFoundObjectResult>();
+		}
 	}
 }

src/Robware.Api.Blog/Controllers/BlogController.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Linq;
+using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
@@ -53,8 +52,14 @@ namespace Robware.Api.Blog.Controllers {
 		}
 
 		[HttpGet(nameof(GetLatestPost))]
-		public async Task<BlogPost> GetLatestPost() {
-			return null;
+		public async Task<ActionResult<BlogPost>> GetLatestPost() {
+			try {
+				return await _blogRepository.GetLatestPostAsync();
+			}
+			catch (ItemNotFoundException e) {
+				_logger.Log(LogLevel.Error, e.Message);
+				return NotFound("Could not find blog post");
+			}
 		}
 
 		//[HttpGet]