Added missing method to IBlogProvider.

Added more tests.

Author: Tdue21

Source/Dove.Blog.Logic/BlogProvider.cs

@@ -15,8 +15,9 @@ namespace Dove.Blog.Logic;
 public interface IBlogProvider
 {
     Task<IEnumerable<(string category, int posts)>> GetCategories();
-    Task<Post> GetPost(string? postTitle);
     Task<IEnumerable<string>> GetTags();
+    Task<Post> GetPost(string? postTitle);
+    Task<IEnumerable<PostSummary>> GetPosts(string? category = null, params string[] tags);
 }
 
 public class BlogProvider(IDataProvider dataProvider, IMemoryCache memoryCache, ILogger<BlogProvider> logger) : IBlogProvider
@@ -97,21 +98,21 @@ public async Task<IEnumerable<PostSummary>> GetPosts(string? category = null, pa
                 posts = posts.Where(p => p.Categories != null && p.Categories.Contains(category))
                              .ToList();
             }
+
             if (tags.Length > 0)
             {
-                posts = posts.Where(p => p.Tags != null && p.Tags.Intersect(tags).Any())
+                posts = posts.Where(p => p.Tags!.Any(t => tags.Contains(t)))
                              .ToList();
             }
 
-
-
             return posts.Select(p =>
             {
+                var brief = p.Content?.Length > 200 ? p.Content?.Substring(0, 200) : p.Content;
                 return new PostSummary
                 {
                     Slug = p.Slug,
                     Title = p.Title,
-                    Summary = p.Summary ?? _htmlRegex.Replace(p.Content?.Substring(0, 200) + " ...", string.Empty),
+                    Summary = p.Summary ?? _htmlRegex.Replace(brief + " ...", string.Empty),
                     Author = p.Author,
                     Posted = p.Posted,
                     Updated = p.Updated
@@ -188,10 +189,4 @@ private string Slugify(string text)
 
         return finalized.ToLower();
     }
-
-    private static string RemoveHTMLTagsCompiled(string html)
-    {
-        return _htmlRegex.Replace(html, string.Empty);
-    }
-
 }

Source/Dove.Blog.Tests/CategoryProviderTests.cs

@@ -1,16 +1,20 @@
 using Dove.Blog.Abstractions;
+using Dove.Blog.Data;
 using Dove.Blog.Logic;
 using FluentAssertions;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Logging;
 using NSubstitute;
+using System;
+using Xunit;
 
 namespace Dove.Blog.Tests;
 
-public class CategoryProviderTests
+public class BlogProviderTests
 {
-    [Fact]
-    public async Task GetCategories_Success_TestAsync()
+    private readonly BlogProvider _provider;
+
+    public BlogProviderTests()
     {
         var memoryCache = Substitute.For<IMemoryCache>();
         var logger = Substitute.For<ILogger<BlogProvider>>();
@@ -20,19 +24,88 @@ public async Task GetCategories_Success_TestAsync()
         fileProvider.ReadPageContent(Arg.Is<string>(x => x == "Posts/First-Blog-Post")).Returns(FirstBlogPost);
         fileProvider.ReadPageContent(Arg.Is<string>(x => x == "Posts/Second-Blog-Post")).Returns(SecondBlogPost);
         fileProvider.ReadPageContent(Arg.Is<string>(x => x == "Posts/Third-Blog-Post")).Returns(ThirdBlogPost);
-        
-        var provider = new BlogProvider(fileProvider, memoryCache, logger);
-        var categories = await provider.GetCategories();
+
+        _provider = new BlogProvider(fileProvider, memoryCache, logger);
+    }
+
+    [Fact]
+    public async Task GetCategories_Success_TestAsync()
+    {
+        var categories = await _provider.GetCategories();
 
         categories.Should().NotBeNull();
         categories.Should().HaveCount(4);
         categories.Should().BeEquivalentTo([("General", 2), ("Yahoo", 1), ("Recipes", 1), ("Test", 1)]);
     }
 
+    [Fact]
+    public async Task GetTags_Success_TestAsync()
+    {
+        var tags = await _provider.GetTags();
+        tags.Should().NotBeNull();
+        tags.Should().HaveCount(2);
+        tags.Should().BeEquivalentTo(["blog", "test"]);
+    }
+
+    [Fact]
+    public async Task GetPosts_No_Filters_Success_TestAsync()
+    {
+        var posts = await _provider.GetPosts();
+        posts.Should().NotBeNull();
+        posts.Should().HaveCount(3);
+    }
+
+
+    [Fact]
+    public async Task GetPosts_Filter_On_Category_Success_TestAsync()
+    {
+        var posts = await _provider.GetPosts("General");
+        posts.Should().NotBeNull();
+        posts.Should().HaveCount(2);
+    }
+
+
+    [Fact]
+    public async Task GetPosts_Filter_On_Tags_Success_TestAsync()
+    {
+        var posts = await _provider.GetPosts(category: null, "test", "blog");
+        posts.Should().NotBeNull();
+        posts.Should().HaveCount(3);
+    }
+
+    [Fact]
+    public async Task GetPost_Success_TestAsync()
+    {
+        var expected = new Post
+        {
+            Title = "First Post",
+            Author = "tdue21",
+            Slug = "first-blog-post",
+            Categories = ["General"],
+            Tags = ["blog", "test"],
+            Content = "<p>Bla bla bla</p>\n",
+            Posted = new DateTimeOffset(2023, 10, 1, 0, 0, 0, TimeSpan.Zero),
+        };
+        var post = await _provider.GetPost("First-Blog-Post");
+        post.Should().NotBeNull();
+        post.Should().BeEquivalentTo(expected, options => options
+            .Excluding(x => x.Posted)
+            .Excluding(x => x.Updated)
+            .Excluding(x => x.Summary));
+        // Timezone difference can be up to 2 hours
+        post.Posted.Should().BeCloseTo(expected.Posted, TimeSpan.FromHours(2));
+    }
+
     private const string FirstBlogPost = @"---
 title: First Post
+author: tdue21
+slug: first-blog-post
+posted: 2023-10-01
 categories:
 - General
+tags:
+- blog
+- test
 ---
 Bla bla bla";
 
@@ -41,6 +114,8 @@ public async Task GetCategories_Success_TestAsync()
 categories:
 - Yahoo
 - Recipes
+tags:
+- blog
 ---
 Bla bla bla";
 
@@ -49,6 +124,8 @@ public async Task GetCategories_Success_TestAsync()
 categories:
 - General
 - Test
+tags:
+- test
 ---
 Bla bla bla";
 }

Source/Dove.Blog.slnx

@@ -8,5 +8,4 @@
   <Project Path="Dove.Blog.Logic/Dove.Blog.Logic.csproj" />
   <Project Path="Dove.Blog.Tests/Dove.Blog.Tests.csproj" Id="01a5c447-5567-4f52-9ba6-3da4908ae3d3" />
   <Project Path="Dove.Blog.WebApp/Dove.Blog.WebApp.csproj" />
-  <Project Path="RazorApp/RazorApp.csproj" Id="e1b9081c-ab4e-1179-9faa-1688b5d6edc4" />
 </Solution>