async public void NonExistingHostAsync()
{
using var client = new TrivialNtpClient("nonexisting.medo64.com");
await Assert.ThrowsAsync <InvalidOperationException>(async() => {
var time = await client.RetrieveTimeAsync();
});
}
async void Async()
{
var time = await TrivialNtpClient.RetrieveTimeAsync("0.medo64.pool.ntp.org");
var diff = DateTime.UtcNow - time;
Assert.True(Math.Abs(diff.TotalSeconds) < 1);
}
async public void Async()
{
var time = await TrivialNtpClient.RetrieveTimeAsync("0.medo64.pool.ntp.org");
var diff = DateTime.UtcNow - time;
Assert.InRange <double>(diff.TotalSeconds, -2, 2);
}
async public void TimeoutAsync()
{
using var client = new TrivialNtpClient("0.medo64.pool.ntp.org")
{
Timeout = 1
};
await Assert.ThrowsAsync <InvalidOperationException>(async() => {
var time = await client.RetrieveTimeAsync();
});
}