diff options
Diffstat (limited to 'test/core/end2end/tests/channel_connectivity.c')
-rw-r--r-- | test/core/end2end/tests/channel_connectivity.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/test/core/end2end/tests/channel_connectivity.c b/test/core/end2end/tests/channel_connectivity.c new file mode 100644 index 0000000000..3917cad4a7 --- /dev/null +++ b/test/core/end2end/tests/channel_connectivity.c @@ -0,0 +1,123 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "test/core/end2end/end2end_tests.h" + +#include <grpc/support/log.h> +#include <grpc/support/time.h> + +#include "test/core/end2end/cq_verifier.h" + +static void *tag(gpr_intptr t) { return (void *)t; } + +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); + + config.init_client(&f, NULL); + + /* 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_MILLIS_TO_DEADLINE(100)); + GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) == GRPC_CHANNEL_IDLE); + + /* start watching for a change */ + grpc_channel_watch_connectivity_state( + f.client, GRPC_CHANNEL_IDLE, &state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(1)); + /* nothing should happen */ + cq_verify_empty(cqv); + + /* check that we're still in idle, and start connecting */ + GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 1) == GRPC_CHANNEL_IDLE); + + /* and now the watch should trigger */ + cq_expect_completion(cqv, tag(1), 1); + cq_verify(cqv); + GPR_ASSERT(state == GRPC_CHANNEL_CONNECTING); + + /* quickly followed by a transition to TRANSIENT_FAILURE */ + grpc_channel_watch_connectivity_state( + f.client, GRPC_CHANNEL_CONNECTING, &state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(2)); + cq_expect_completion(cqv, tag(2), 1); + cq_verify(cqv); + GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE); + + 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, &state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(3)); + cq_expect_completion(cqv, tag(3), 1); + cq_verify(cqv); + 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, &state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(4)); + + grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead)); + + cq_expect_completion(cqv, tag(4), 1); + cq_expect_completion(cqv, tag(0xdead), 1); + cq_verify(cqv); + GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE); + + /* 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); + config.tear_down_data(&f); + + cq_verifier_destroy(cqv); +} + +void grpc_end2end_tests(grpc_end2end_test_config config) { + GPR_ASSERT(config.feature_mask & FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION); + test_connectivity(config); +} |