public async Task GetCountries()
{
var result = await _client.GetCountriesAsync(CancellationToken.None);
var metadata = _client.UsageData;
Assert.Equal("Success", metadata.Message);
Assert.True(metadata.Used > 0);
var list = result.ToList();
Assert.True(list.Any());
Assert.Contains(list, country => country.Name.Equals("Brazil"));
Assert.Contains(list, country => country.Name.Equals("Argentina"));
Assert.Contains(list, country => country.Code.Equals("BR"));
Assert.Contains(list, country => country.Flag.Equals("https://www.countryflags.io/BR/flat/64.png"));
}
