public void GetCountryTimeZonesTest() { var timezones = TimeZone.GetCountryTimeZones("PL"); Assert.AreEqual(2, timezones.Count()); Assert.AreEqual(1, timezones.Count(tz => tz.Id == "Poland")); Assert.AreEqual(1, timezones.Count(tz => tz.Id == "Europe/Warsaw")); }