public void ReadWriteTest()
{
const string filename = "../../../Musagetes/Collaterals/Testing/ReadWriteTest.xml";
var songDbWrite = new SongDb(null);
songDbWrite.AddSong(
new Song("title", "location", 1234, new Bpm(4321, false), songDbWrite, 321));
songDbWrite.AddSong(
new Song("title2", "location2", 7890, new Bpm(987, true), songDbWrite, 654));
var writer = new SongDbWriter(filename, songDbWrite);
writer.WriteDb().Wait();
Assert.IsTrue(writer.WriteSuccessful);
var songDbRead = new SongDb(null);
var reader = new SongDbReader(filename, songDbRead);
reader.ReadDb().Wait();
Assert.IsTrue(reader.ReadSuccessful);
Assert.AreEqual(songDbRead.Songs.Count, songDbWrite.Songs.Count,
"Reader/Writer song counts don't match");
foreach (var song in songDbWrite.Songs)
{
var localSong = song;
var match = songDbRead.Songs.First(s => s.SongTitle.Equals(localSong.SongTitle));
var matchTags = songDbRead.SongTagDictionary[match];
var tags = songDbRead.SongTagDictionary[localSong];
foreach (var tag in tags)
{
Assert.IsTrue(matchTags.Count(t => t.TagName.Equals(tag.TagName)) == 1,
"Read/Write dictionary have different tags");
}
Assert.AreEqual(localSong.Location, match.Location, "Locations don't match");
Assert.AreEqual(localSong.Milliseconds, match.Milliseconds, "Milliseconds don't match");
Assert.AreEqual(localSong.PlayCount, match.PlayCount, "Playcounts don't match");
Assert.AreEqual(localSong.Bpm.Guess, match.Bpm.Guess, "BPM Guesses don't match");
Assert.AreEqual(localSong.Bpm.Value, match.Bpm.Value, "BPM Values don't match");
}
}
private async Task ReadSongsAsync(XmlReader reader)
{
await reader.ReadAsync();
while (reader.LocalName.Equals(Constants.Db.Song))
{
Logger.Debug("Reading a song");
UInt32 id;
if (!UInt32.TryParse(reader.GetAttribute(Constants.Db.Id), out id))
{
Logger.Debug("Could not read song id");
await reader.ReadAsync();
continue;
}
if (reader.IsEmptyElement)
{
Logger.Debug("Song element is empty");
await reader.ReadAsync();
continue;
}
await reader.ReadAsync();
if (reader.IsEndElement(Constants.Db.Song))
{
Logger.Debug("Song element is followed by end element");
reader.ReadEndElement();
continue;
}
reader.ConfirmElement(Constants.Db.SongTitle);
var title = await reader.TryGetContentAsync();
reader.ConfirmElement(Constants.Db.Location);
var location = await reader.TryGetContentAsync();
reader.ConfirmElement(Constants.Db.Milliseconds);
int milliseconds;
if (!int.TryParse(await reader.TryGetContentAsync(), out milliseconds))
{
Logger.Error("Song {0} has a missing or unreadable millisecond value", title);
}
reader.ConfirmElement(Constants.Db.PlayCount);
uint playCount;
if (!uint.TryParse(await reader.TryGetContentAsync(), out playCount))
{
Logger.Error("Song {0} has a missing or unreadable playcount", title);
}
reader.ConfirmElement(Constants.Db.Bpm);
var guess = Convert.ToBoolean(reader.GetAttribute(Constants.Db.Guess));
int bpmValue;
if (!int.TryParse(await reader.TryGetContentAsync(), out bpmValue))
{
Logger.Error("Song {0} has a missing or unreadable BPM value", title);
}
var song = new Song(title, location, milliseconds, new Bpm(bpmValue, guess),
playCount, id);
SongDb.AddSong(song);
reader.ConfirmElement(Constants.Db.Tags);
if (reader.IsEmptyElement)
{
await reader.ReadAsync();
}
else
{
await ReadSongTagsAsync(reader, song);
reader.ReadEndElement();
}
reader.ReadEndElement();
}
}