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Diffstat (limited to 'test/core/end2end/tests/connectivity.cc')
| -rw-r--r-- | test/core/end2end/tests/connectivity.cc | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/test/core/end2end/tests/connectivity.cc b/test/core/end2end/tests/connectivity.cc new file mode 100644 index 0000000000..4f302d11dc --- /dev/null +++ b/test/core/end2end/tests/connectivity.cc @@ -0,0 +1,173 @@ +/* + * + * Copyright 2015 gRPC authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include "test/core/end2end/end2end_tests.h" + +#include <grpc/support/log.h> +#include <grpc/support/sync.h> +#include <grpc/support/thd.h> +#include <grpc/support/time.h> + +#include "test/core/end2end/cq_verifier.h" + +static void* tag(intptr_t t) { return (void*)t; } + +typedef struct { + gpr_event started; + grpc_channel* channel; + grpc_completion_queue* cq; +} child_events; + +static void child_thread(void* arg) { + child_events* ce = (child_events*)arg; + grpc_event ev; + gpr_event_set(&ce->started, (void*)1); + gpr_log(GPR_DEBUG, "verifying"); + ev = grpc_completion_queue_next(ce->cq, gpr_inf_future(GPR_CLOCK_MONOTONIC), + NULL); + GPR_ASSERT(ev.type == GRPC_OP_COMPLETE); + GPR_ASSERT(ev.tag == tag(1)); + GPR_ASSERT(ev.success == 0); +} + +static void test_connectivity(grpc_end2end_test_config config) { + grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL); + grpc_connectivity_state state; + cq_verifier* cqv = cq_verifier_create(f.cq); + child_events ce; + gpr_thd_options thdopt = gpr_thd_options_default(); + gpr_thd_id thdid; + + grpc_channel_args client_args; + grpc_arg arg_array[1]; + arg_array[0].type = GRPC_ARG_INTEGER; + arg_array[0].key = + const_cast<char*>("grpc.testing.fixed_reconnect_backoff_ms"); + arg_array[0].value.integer = 1000; + client_args.args = arg_array; + client_args.num_args = 1; + + config.init_client(&f, &client_args); + + ce.channel = f.client; + ce.cq = f.cq; + gpr_event_init(&ce.started); + gpr_thd_options_set_joinable(&thdopt); + GPR_ASSERT(gpr_thd_new(&thdid, child_thread, &ce, &thdopt)); + + gpr_event_wait(&ce.started, gpr_inf_future(GPR_CLOCK_MONOTONIC)); + + /* channels should start life in IDLE, and stay there */ + GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) == + GRPC_CHANNEL_IDLE); + gpr_sleep_until(grpc_timeout_milliseconds_to_deadline(100)); + GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) == + GRPC_CHANNEL_IDLE); + + /* start watching for a change */ + gpr_log(GPR_DEBUG, "watching"); + grpc_channel_watch_connectivity_state( + f.client, GRPC_CHANNEL_IDLE, gpr_now(GPR_CLOCK_MONOTONIC), f.cq, tag(1)); + + /* eventually the child thread completion should trigger */ + gpr_thd_join(thdid); + + /* check that we're still in idle, and start connecting */ + GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 1) == + GRPC_CHANNEL_IDLE); + /* start watching for a change */ + grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_IDLE, + grpc_timeout_seconds_to_deadline(3), + f.cq, tag(2)); + + /* and now the watch should trigger */ + CQ_EXPECT_COMPLETION(cqv, tag(2), 1); + cq_verify(cqv); + state = grpc_channel_check_connectivity_state(f.client, 0); + GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE || + state == GRPC_CHANNEL_CONNECTING); + + /* quickly followed by a transition to TRANSIENT_FAILURE */ + grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_CONNECTING, + grpc_timeout_seconds_to_deadline(3), + f.cq, tag(3)); + CQ_EXPECT_COMPLETION(cqv, tag(3), 1); + cq_verify(cqv); + state = grpc_channel_check_connectivity_state(f.client, 0); + GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE || + state == GRPC_CHANNEL_CONNECTING); + + gpr_log(GPR_DEBUG, "*** STARTING SERVER ***"); + + /* now let's bring up a server to connect to */ + config.init_server(&f, NULL); + + gpr_log(GPR_DEBUG, "*** STARTED SERVER ***"); + + /* we'll go through some set of transitions (some might be missed), until + READY is reached */ + while (state != GRPC_CHANNEL_READY) { + grpc_channel_watch_connectivity_state( + f.client, state, grpc_timeout_seconds_to_deadline(3), f.cq, tag(4)); + CQ_EXPECT_COMPLETION(cqv, tag(4), 1); + cq_verify(cqv); + state = grpc_channel_check_connectivity_state(f.client, 0); + GPR_ASSERT(state == GRPC_CHANNEL_READY || + state == GRPC_CHANNEL_CONNECTING || + state == GRPC_CHANNEL_TRANSIENT_FAILURE); + } + + /* bring down the server again */ + /* we should go immediately to TRANSIENT_FAILURE */ + gpr_log(GPR_DEBUG, "*** SHUTTING DOWN SERVER ***"); + + grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_READY, + grpc_timeout_seconds_to_deadline(3), + f.cq, tag(5)); + + grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead)); + + CQ_EXPECT_COMPLETION(cqv, tag(5), 1); + CQ_EXPECT_COMPLETION(cqv, tag(0xdead), 1); + cq_verify(cqv); + state = grpc_channel_check_connectivity_state(f.client, 0); + GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE || + state == GRPC_CHANNEL_CONNECTING || state == GRPC_CHANNEL_IDLE); + + /* cleanup server */ + grpc_server_destroy(f.server); + + gpr_log(GPR_DEBUG, "*** SHUTDOWN SERVER ***"); + + grpc_channel_destroy(f.client); + grpc_completion_queue_shutdown(f.cq); + grpc_completion_queue_destroy(f.cq); + + /* shutdown_cq is not used in this test */ + grpc_completion_queue_destroy(f.shutdown_cq); + config.tear_down_data(&f); + + cq_verifier_destroy(cqv); +} + +void connectivity(grpc_end2end_test_config config) { + GPR_ASSERT(config.feature_mask & FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION); + test_connectivity(config); +} + +void connectivity_pre_init(void) {} |