public async Task TestDefaultSenderAppendNoSend()
{
var sender = new GrpcSender();
var span = GetSpan();
// Only appended, no sending, so this should not fail.
var count = await sender.AppendAsync(span, CancellationToken.None);
Assert.Equal(0, count);
}
public async Task TestSpanDoesntFit()
{
var maxPacketSize = 140; // Process has around 100 bytes, Span has around 50 bytes
var sender = new GrpcSender(GrpcSender.DefaultCollectorGrpcTarget, ChannelCredentials.Insecure, maxPacketSize);
var span = GetSpan();
var ex = await Assert.ThrowsAsync <SenderException>(() => sender.AppendAsync(span, CancellationToken.None));
Assert.Equal(1, ex.DroppedSpanCount);
Assert.Contains("too large", ex.Message);
}
public async Task TestFlushing()
{
var maxPacketSize = 200; // Process has around 100 bytes, Span has around 50 bytes
var sender = new GrpcSender(GrpcSender.DefaultCollectorGrpcTarget, ChannelCredentials.Insecure, maxPacketSize);
var span = GetSpan();
// Only appended, no sending, so this should not fail.
// It's exceeding the max bytes, so it will be flushed on next append.
var count = await sender.AppendAsync(span, CancellationToken.None);
Assert.Equal(0, count);
// As we don't have a gRPC endpoint running, this will fail after timeout.
// Both spans will be lost (both appends).
var ex = await Assert.ThrowsAsync <SenderException>(() => sender.AppendAsync(span, CancellationToken.None));
Assert.Equal(2, ex.DroppedSpanCount);
// Check that we really only failed because of the timeout.
var rpcEx = Assert.IsType <RpcException>(ex.InnerException?.InnerException);
Assert.Equal(StatusCode.Unavailable, rpcEx.StatusCode);
}