I am testing a Polly TimeOut policy

    public static IAsyncPolicy<HttpResponseMessage> GetTimeoutPolicy(int timeoutSeconds)
    {
      return Policy
       .TimeoutAsync<HttpResponseMessage>(
         timeout: TimeSpan.FromSeconds(timeoutSeconds),
         timeoutStrategy: TimeoutStrategy.Optimistic);
    }

with the following test:

      [Fact]
      public async Task GetTimeoutPolicy_ThrowsTimeoutRejectedException2()
      {
        int timeoutSeconds = 1;
        var policy = HttpPolicies.HttpPolicies.GetTimeoutPolicy(timeoutSeconds);
    
        await policy.Awaiting(p => p.ExecuteAsync(async () =>
        {
          await Task.Delay(TimeSpan.FromSeconds(2));
          return new HttpResponseMessage(System.Net.HttpStatusCode.OK);
        })).Should().ThrowAsync<TimeoutRejectedException>();
      }

The test fails if I don’t use the TimeoutStrategy.Pessimistic strategy, it is the Task.Delay that cause the issue? How can I solve the issue?