diff options
Diffstat (limited to 'test/core/surface/num_external_connectivity_watchers_test.c')
| -rw-r--r-- | test/core/surface/num_external_connectivity_watchers_test.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/test/core/surface/num_external_connectivity_watchers_test.c b/test/core/surface/num_external_connectivity_watchers_test.c new file mode 100644 index 0000000000..16401bb7ac --- /dev/null +++ b/test/core/surface/num_external_connectivity_watchers_test.c @@ -0,0 +1,199 @@ +/* + * + * Copyright 2016 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 <grpc/grpc.h> +#include <grpc/grpc_security.h> +#include <grpc/support/alloc.h> +#include <grpc/support/host_port.h> +#include <grpc/support/log.h> +#include <grpc/support/thd.h> + +#include "src/core/lib/channel/channel_args.h" +#include "src/core/lib/iomgr/exec_ctx.h" +#include "test/core/end2end/data/ssl_test_data.h" +#include "test/core/util/port.h" +#include "test/core/util/test_config.h" + +typedef struct test_fixture { + const char *name; + grpc_channel *(*create_channel)(const char *addr); +} test_fixture; + +static size_t next_tag = 1; + +static void channel_idle_start_watch(grpc_channel *channel, + grpc_completion_queue *cq) { + gpr_timespec connect_deadline = grpc_timeout_milliseconds_to_deadline(1); + GPR_ASSERT(grpc_channel_check_connectivity_state(channel, 0) == + GRPC_CHANNEL_IDLE); + + grpc_channel_watch_connectivity_state( + channel, GRPC_CHANNEL_IDLE, connect_deadline, cq, (void *)(next_tag++)); + gpr_log(GPR_DEBUG, "number of active connect watchers: %d", + grpc_channel_num_external_connectivity_watchers(channel)); +} + +static void channel_idle_poll_for_timeout(grpc_channel *channel, + grpc_completion_queue *cq) { + grpc_event ev = + grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), NULL); + + /* expect watch_connectivity_state to end with a timeout */ + GPR_ASSERT(ev.type == GRPC_OP_COMPLETE); + GPR_ASSERT(ev.success == false); + GPR_ASSERT(grpc_channel_check_connectivity_state(channel, 0) == + GRPC_CHANNEL_IDLE); +} + +/* Test and use the "num_external_watchers" call to make sure + * that "connectivity watcher" structs are free'd just after, if + * their corresponding timeouts occur. */ +static void run_timeouts_test(const test_fixture *fixture) { + gpr_log(GPR_INFO, "TEST: %s", fixture->name); + + char *addr; + + grpc_init(); + + gpr_join_host_port(&addr, "localhost", grpc_pick_unused_port_or_die()); + + grpc_channel *channel = fixture->create_channel(addr); + grpc_completion_queue *cq = grpc_completion_queue_create_for_next(NULL); + + /* start 1 watcher and then let it time out */ + channel_idle_start_watch(channel, cq); + channel_idle_poll_for_timeout(channel, cq); + GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0); + + /* start 3 watchers and then let them all time out */ + for (size_t i = 1; i <= 3; i++) { + channel_idle_start_watch(channel, cq); + } + for (size_t i = 1; i <= 3; i++) { + channel_idle_poll_for_timeout(channel, cq); + } + GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0); + + /* start 3 watchers, see one time out, start another 3, and then see them all + * time out */ + for (size_t i = 1; i <= 3; i++) { + channel_idle_start_watch(channel, cq); + } + channel_idle_poll_for_timeout(channel, cq); + for (size_t i = 3; i <= 5; i++) { + channel_idle_start_watch(channel, cq); + } + for (size_t i = 1; i <= 5; i++) { + channel_idle_poll_for_timeout(channel, cq); + } + GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0); + + grpc_channel_destroy(channel); + grpc_completion_queue_shutdown(cq); + GPR_ASSERT( + grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), NULL) + .type == GRPC_QUEUE_SHUTDOWN); + grpc_completion_queue_destroy(cq); + + grpc_shutdown(); + gpr_free(addr); +} + +/* An edge scenario; sets channel state to explicitly, and outside + * of a polling call. */ +static void run_channel_shutdown_before_timeout_test( + const test_fixture *fixture) { + gpr_log(GPR_INFO, "TEST: %s", fixture->name); + + char *addr; + + grpc_init(); + + gpr_join_host_port(&addr, "localhost", grpc_pick_unused_port_or_die()); + + grpc_channel *channel = fixture->create_channel(addr); + grpc_completion_queue *cq = grpc_completion_queue_create_for_next(NULL); + + /* start 1 watcher and then shut down the channel before the timer goes off */ + GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0); + + /* expecting a 30 second timeout to go off much later than the shutdown. */ + gpr_timespec connect_deadline = grpc_timeout_seconds_to_deadline(30); + GPR_ASSERT(grpc_channel_check_connectivity_state(channel, 0) == + GRPC_CHANNEL_IDLE); + + grpc_channel_watch_connectivity_state(channel, GRPC_CHANNEL_IDLE, + connect_deadline, cq, (void *)1); + grpc_channel_destroy(channel); + + grpc_event ev = + grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), NULL); + GPR_ASSERT(ev.type == GRPC_OP_COMPLETE); + /* expect success with a state transition to CHANNEL_SHUTDOWN */ + GPR_ASSERT(ev.success == true); + + grpc_completion_queue_shutdown(cq); + GPR_ASSERT( + grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), NULL) + .type == GRPC_QUEUE_SHUTDOWN); + grpc_completion_queue_destroy(cq); + + grpc_shutdown(); + gpr_free(addr); +} + +static grpc_channel *insecure_test_create_channel(const char *addr) { + return grpc_insecure_channel_create(addr, NULL, NULL); +} + +static const test_fixture insecure_test = { + "insecure", insecure_test_create_channel, +}; + +static grpc_channel *secure_test_create_channel(const char *addr) { + grpc_channel_credentials *ssl_creds = + grpc_ssl_credentials_create(test_root_cert, NULL, NULL); + grpc_arg ssl_name_override = {GRPC_ARG_STRING, + GRPC_SSL_TARGET_NAME_OVERRIDE_ARG, + {"foo.test.google.fr"}}; + grpc_channel_args *new_client_args = + grpc_channel_args_copy_and_add(NULL, &ssl_name_override, 1); + grpc_channel *channel = + grpc_secure_channel_create(ssl_creds, addr, new_client_args, NULL); + { + grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; + grpc_channel_args_destroy(&exec_ctx, new_client_args); + grpc_exec_ctx_finish(&exec_ctx); + } + grpc_channel_credentials_release(ssl_creds); + return channel; +} + +static const test_fixture secure_test = { + "secure", secure_test_create_channel, +}; + +int main(int argc, char **argv) { + grpc_test_init(argc, argv); + + run_timeouts_test(&insecure_test); + run_timeouts_test(&secure_test); + + run_channel_shutdown_before_timeout_test(&insecure_test); + run_channel_shutdown_before_timeout_test(&secure_test); +} |