public void DiscoveredDevice_IsExpired_ImmediatelyReportsTrueIfCacheLifetimeIsZero()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.Zero;
Assert.IsTrue(discoveredDevice.IsExpired());
}
public void DiscoveredDevice_IsExpired_DoesNotImmediatelyReportTrue()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.FromSeconds(1);
Assert.IsFalse(discoveredDevice.IsExpired());
}
public void DiscoveredDevice_IsExpired_ReportsTrueAfterCacheLifetimeExpires()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.FromMilliseconds(100);
System.Threading.Thread.Sleep(500);
Assert.IsTrue(discoveredDevice.IsExpired());
}