From 679748b2079b10aeb0cad2efa840078221d1e35f Mon Sep 17 00:00:00 2001
From: glucaci <gabriel.lucaci.dev@gmail.com>
Date: Mon, 30 Jan 2017 11:52:35 +0100
Subject: [PATCH] ListPlaylistInfo command and UnitTest.

---
 LibMpc/Commands/Commands.Playlists.cs     | 31 +++++++++++++++++++++++
 LibMpcTest/Tests/PlaylistsCommandsTest.cs | 18 +++++++++++++
 2 files changed, 49 insertions(+)

diff --git a/LibMpc/Commands/Commands.Playlists.cs b/LibMpc/Commands/Commands.Playlists.cs
index 0d5bb67..9250ab3 100644
--- a/LibMpc/Commands/Commands.Playlists.cs
+++ b/LibMpc/Commands/Commands.Playlists.cs
@@ -40,6 +40,37 @@ namespace LibMpc
                     }
                 }
 
+                public class ListPlaylistInfo : IMpcCommand<IEnumerable<IMpdFile>>
+                {
+                    private readonly string _playlistName;
+
+                    public ListPlaylistInfo(string playlistName)
+                    {
+                        _playlistName = playlistName;
+                    }
+
+                    public string Value => string.Join(" ", "listplaylistinfo", $"\"{_playlistName}\"");
+
+                    public IEnumerable<IMpdFile> FormatResponse(IList<KeyValuePair<string, string>> response)
+                    {
+                        var results = new List<MpdFile>();
+
+                        foreach (var line in response)
+                        {
+                            if (line.Key.Equals("file"))
+                            {
+                                results.Add(new MpdFile(line.Value));
+                            }
+                            else
+                            {
+                                results.Last().AddTag(line.Key, line.Value);
+                            }
+                        }
+
+                        return results;
+                    }
+                }
+
                 /// <summary>
                 /// Prints a list of the playlist directory.
                 /// </summary>
diff --git a/LibMpcTest/Tests/PlaylistsCommandsTest.cs b/LibMpcTest/Tests/PlaylistsCommandsTest.cs
index 41a0a26..a65297c 100644
--- a/LibMpcTest/Tests/PlaylistsCommandsTest.cs
+++ b/LibMpcTest/Tests/PlaylistsCommandsTest.cs
@@ -3,6 +3,7 @@ using Newtonsoft.Json;
 using Xunit;
 using LibMpc;
 using System.Linq;
+using Xunit.Abstractions;
 
 namespace LibMpcTest
 {
@@ -22,6 +23,23 @@ namespace LibMpcTest
             Assert.True(response.Response.Body.Count().Equals(numberOfFiles));
         }
 
+        [Theory]
+        [InlineData("Playlist One", 5)]
+        [InlineData("Playlist Two", 3)]
+        [InlineData("_My Playlist", 5)]
+        public async Task ListPlaylistInfoTest(string playlistName, int numberOfFiles)
+        {
+            var response = await Mpc.SendAsync(new Commands.Playlists.Stored.ListPlaylistInfo(playlistName));
+
+            TestOutput.WriteLine($"ListPlaylistTest (playlistName: {playlistName}) Result:");
+            TestOutput.WriteLine(JsonConvert.SerializeObject(response, Formatting.Indented));
+
+            Assert.True(response.Response.Body.Count().Equals(numberOfFiles));
+            Assert.True(response.Response.Body.All(item => !string.IsNullOrEmpty(item.Artist)));
+            Assert.True(response.Response.Body.All(item => !string.IsNullOrEmpty(item.Title)));
+            Assert.True(response.Response.Body.All(item => !string.IsNullOrEmpty(item.Date)));
+        }
+
         [Fact]
         public async Task ListPlaylistsTest()
         {