public void LocalZoneIsNull()
{
// Use the existing system time zones, but just make TimeZoneInfo.Local return null.
using (TimeZoneInfoReplacer.Replace(null, TimeZoneInfo.GetSystemTimeZones().ToArray()))
{
// If we have no system time zone, we have no ID to map it to.
Assert.Null(TzdbDateTimeZoneSource.Default.GetSystemDefaultId());
}
}
public void LocalZoneIsNull()
{
var systemZone = TimeZoneInfo.CreateCustomTimeZone("Normal zone", TimeSpan.Zero, "Display", "Standard");
using (TimeZoneInfoReplacer.Replace(null, systemZone))
{
Assert.Throws <InvalidOperationException>(() => BclDateTimeZone.ForSystemDefault());
}
}
public void LocalZoneIsNull()
{
var systemZone = TimeZoneInfo.CreateCustomTimeZone("Normal zone", TimeSpan.Zero, "Display", "Standard");
using (TimeZoneInfoReplacer.Replace(null, systemZone))
{
var source = new BclDateTimeZoneSource();
Assert.Null(source.GetSystemDefaultId());
}
}
public void LocalZoneIsNotSystemZone()
{
var systemZone = TimeZoneInfo.CreateCustomTimeZone("Normal zone", TimeSpan.Zero, "Display", "Standard");
var localZone = TimeZoneInfo.CreateCustomTimeZone("Local zone not in system zones", TimeSpan.FromHours(5), "Foo", "Bar");
using (TimeZoneInfoReplacer.Replace(localZone, systemZone))
{
var source = new BclDateTimeZoneSource();
CollectionAssert.AreEqual(new[] { systemZone.Id }, source.GetIds().ToList());
// We can't look it up later, but we can still find it...
Assert.AreEqual(localZone.Id, source.GetSystemDefaultId());
}
}