It's been confusing that these tests have been called "interop" but
are not actually tests of interoperation.

Documentation for the new tests can be found https://github.com/grpc/grpc/blob/master/doc/negative-http2-interop-test-descriptions.md

Setuptools was updated and our hacky namespace-package-chickens came
back to roost. This removes the unsupported namespace package hacks.

Setuptools was updated and our hacky namespace-package-chickens came
back to roost. This removes the unsupported namespace package hacks.

It was a mistake that requests might be sent; the test specification
calls for no requests to be sent. It was a mistake that the response
future's cancelled() method was called; the cancelled() method returns
something more like "was this object's cancel() method called earlier?"
than "did the RPC terminate with status code CANCELLED?". Since it's
something that we'd well enough like to work I've retained the
cancelled() call with a different failure message.

This reverts commit 3045a379.

Backports per-object grpc_init/deinit and separated-file grpc protoc
codegen (#7538, #8246, #8920).

Almost fixes #8753 (which still needs a test).

The server cleanup method is untested.

The join() function that exposes it is only called by the internals of threading.py, and we don't hold a reference to the server thread to explicitly join() it, and I'm not sure we should add a reference just for this purpose.

Moreover, the threading.py only calls join(None), the code path in question isn't even exercised by the internals of threading.py. Its just there to make sure we properly follow the join(timeout) semantics.

Add use_tls, use_test_ca, and server_host_override flags to Python
stress client. These are needed to run the stress client against a local
server that is using tls.

To support magical internal build processes, the pb2 files need to be
split into pure-proto and gRPC parts. This performs that split and
further fixes bad module names in the test harness that interfered with
the intended test implementation.

An unfortunate side effect, due to limitations of protoc and holdover
behavior we must support in major version 1.x, is that trash files are
generated in split generation. This shouldn't be a problem in normal
protoc plugin use.

Add the code for three new interop tests: unimplemented_method,
unimplemented_service, and custom_metadata.

Fix and refactor the code for status_code_and_message.

Some features relating to proto2 extension querying are missing due to
missing upstream features required to support them (see
https://github.com/google/protobuf/issues/2248).

This allows for testing other implementations of grpc.Server.

remove skipIfStatement from
TypeSmokeTest.testCallCredentialsFromPluginUpDown since the test passes
on PyPy variants 5.3.0 and newer since these variants have improved
compatibility support for the C-Extensions

don't run cygrpc_test.TypeSmokeTest.testCallCredentialsFromPluginUpdown
if the interpreter is PyPy

Add a RecordingThreadPool that inherits from Executor, contains a
ThreadPoolExecutor and has an extra method 'was_used' to indicate if
submit method was ever called i.e. if the thread pool was ever used.

-Rename namespace to grpc_health->grpc to match spec
-Proper use of NOT_FOUND status code
-Improve testing
-Add source distribution to artifact build

This is for https://github.com/grpc/grpc/pull/6737 when
start_batch will no longer put data on the wire

This should have been included as part of
45c0f2b3

This should have been part of a6b2a5a0