public void GetAllCityStates_NeverReturnsNull()
{
var result = Zip2City.GetAllCityStates("99999");
Assert.IsNotNull(result);
Console.WriteLine(JsonSerializer.Serialize(new string[0][]));
}
public void GetAllCityStates_ForExistentZipCode_ReturnsOneOrMoreSets()
{
var result = Zip2City.GetAllCityStates("75261");
Assert.IsInstanceOfType(result, typeof(IEnumerable <string[]>));
foreach (var cityState in result)
{
Assert.IsNotNull(cityState[0], "It should have a city name.");
Assert.AreEqual(2, cityState[1].Length, "It should be a state code");
}
Console.WriteLine(JsonSerializer.Serialize(result));
}