feldentm-SAP

*Requested feature* If a test makes an unexpected use of a mocked function, the call should result in a stack trace to fasten reaction to that error and help to...

Improve mock usability in tests

2

Add stacktrace on fatal exit of mocked call to allow maintainers of tests using this API to understand what is actually going wrong

Proposal: Allow common base64 encoding in tracestate values

5

### Problem SAP would like to encode context information from existing widely-used correlators into tracestate header parts. These correlators use data that is a structured record of raw binary data....

Add call stack to unexpected mock call

3

Make identification of unexpected calls easier. Note, this is a copy of https://github.com/uber-go/mock/pull/110 which is miraculously permanently closed.

Tracer doesn't flush implicitly on shutdown.

4

### Description Currently, shutdown of a tracer requires this wrapper: ``` // Shutdown will flush any remaining spans and shut down the exporter. return tracerProvider.Shutdown return func(ctx context.Context) error {...