public async Task GetLeaguesBySummonerIdsAsyncTest()
{
IRiotClient client = new RiotClient();
var summonerIds = new[] { 35870943L, 34172230L };
var leagues = await client.GetLeaguesBySummonerIdsAsync(summonerIds);
Assert.That(leagues, Is.Not.Null);
foreach (var id in summonerIds)
Assert.That(leagues.ContainsKey(id.ToString(CultureInfo.InvariantCulture)));
var league = leagues.Values.First().First();
Assert.That(league.Entries.Count, Is.GreaterThan(1));
Assert.That(league.Name, Is.Not.Null.And.Not.Empty);
}