Initial checkin of gRPC to third_party/

third_party/grpc/test/core/transport/connectivity_state_test.c

Index: third_party/grpc/test/core/transport/connectivity_state_test.c
diff --git a/third_party/grpc/test/core/transport/connectivity_state_test.c b/third_party/grpc/test/core/transport/connectivity_state_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..4b2d0aa44a07eca79745b8a4d4b073c1473e7fd3
--- /dev/null
+++ b/third_party/grpc/test/core/transport/connectivity_state_test.c
@@ -0,0 +1,154 @@
+/*
+ *
+ * Copyright 2015-2016, 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 "src/core/transport/connectivity_state.h"
+
+#include <string.h>
+
+#include <grpc/support/log.h>
+
+#include "test/core/util/test_config.h"
+
+#define THE_ARG ((void *)(size_t)0xcafebabe)
+
+int g_counter;
+
+static void must_succeed(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
+  GPR_ASSERT(success);
+  GPR_ASSERT(arg == THE_ARG);
+  g_counter++;
+}
+
+static void must_fail(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
+  GPR_ASSERT(!success);
+  GPR_ASSERT(arg == THE_ARG);
+  g_counter++;
+}
+
+static void test_connectivity_state_name(void) {
+  gpr_log(GPR_DEBUG, "test_connectivity_state_name");
+  GPR_ASSERT(0 ==
+             strcmp(grpc_connectivity_state_name(GRPC_CHANNEL_IDLE), "IDLE"));
+  GPR_ASSERT(0 == strcmp(grpc_connectivity_state_name(GRPC_CHANNEL_CONNECTING),
+                         "CONNECTING"));
+  GPR_ASSERT(0 ==
+             strcmp(grpc_connectivity_state_name(GRPC_CHANNEL_READY), "READY"));
+  GPR_ASSERT(
+      0 == strcmp(grpc_connectivity_state_name(GRPC_CHANNEL_TRANSIENT_FAILURE),
+                  "TRANSIENT_FAILURE"));
+  GPR_ASSERT(0 ==
+             strcmp(grpc_connectivity_state_name(GRPC_CHANNEL_FATAL_FAILURE),
+                    "FATAL_FAILURE"));
+}
+
+static void test_check(void) {
+  grpc_connectivity_state_tracker tracker;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_log(GPR_DEBUG, "test_check");
+  grpc_connectivity_state_init(&tracker, GRPC_CHANNEL_IDLE, "xxx");
+  GPR_ASSERT(grpc_connectivity_state_check(&tracker) == GRPC_CHANNEL_IDLE);
+  grpc_connectivity_state_destroy(&exec_ctx, &tracker);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_subscribe_then_unsubscribe(void) {
+  grpc_connectivity_state_tracker tracker;
+  grpc_closure *closure = grpc_closure_create(must_fail, THE_ARG);
+  grpc_connectivity_state state = GRPC_CHANNEL_IDLE;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_log(GPR_DEBUG, "test_subscribe_then_unsubscribe");
+  g_counter = 0;
+  grpc_connectivity_state_init(&tracker, GRPC_CHANNEL_IDLE, "xxx");
+  GPR_ASSERT(grpc_connectivity_state_notify_on_state_change(&exec_ctx, &tracker,
+                                                            &state, closure));
+  grpc_exec_ctx_flush(&exec_ctx);
+  GPR_ASSERT(state == GRPC_CHANNEL_IDLE);
+  GPR_ASSERT(g_counter == 0);
+  grpc_connectivity_state_notify_on_state_change(&exec_ctx, &tracker, NULL,
+                                                 closure);
+  grpc_exec_ctx_flush(&exec_ctx);
+  GPR_ASSERT(state == GRPC_CHANNEL_IDLE);
+  GPR_ASSERT(g_counter == 1);
+
+  grpc_connectivity_state_destroy(&exec_ctx, &tracker);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static void test_subscribe_then_destroy(void) {
+  grpc_connectivity_state_tracker tracker;
+  grpc_closure *closure = grpc_closure_create(must_succeed, THE_ARG);
+  grpc_connectivity_state state = GRPC_CHANNEL_IDLE;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_log(GPR_DEBUG, "test_subscribe_then_destroy");
+  g_counter = 0;
+  grpc_connectivity_state_init(&tracker, GRPC_CHANNEL_IDLE, "xxx");
+  GPR_ASSERT(grpc_connectivity_state_notify_on_state_change(&exec_ctx, &tracker,
+                                                            &state, closure));
+  grpc_exec_ctx_flush(&exec_ctx);
+  GPR_ASSERT(state == GRPC_CHANNEL_IDLE);
+  GPR_ASSERT(g_counter == 0);
+  grpc_connectivity_state_destroy(&exec_ctx, &tracker);
+  grpc_exec_ctx_finish(&exec_ctx);
+  GPR_ASSERT(state == GRPC_CHANNEL_FATAL_FAILURE);
+  GPR_ASSERT(g_counter == 1);
+}
+
+static void test_subscribe_with_failure_then_destroy(void) {
+  grpc_connectivity_state_tracker tracker;
+  grpc_closure *closure = grpc_closure_create(must_fail, THE_ARG);
+  grpc_connectivity_state state = GRPC_CHANNEL_FATAL_FAILURE;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_log(GPR_DEBUG, "test_subscribe_with_failure_then_destroy");
+  g_counter = 0;
+  grpc_connectivity_state_init(&tracker, GRPC_CHANNEL_FATAL_FAILURE, "xxx");
+  GPR_ASSERT(0 == grpc_connectivity_state_notify_on_state_change(
+                      &exec_ctx, &tracker, &state, closure));
+  grpc_exec_ctx_flush(&exec_ctx);
+  GPR_ASSERT(state == GRPC_CHANNEL_FATAL_FAILURE);
+  GPR_ASSERT(g_counter == 0);
+  grpc_connectivity_state_destroy(&exec_ctx, &tracker);
+  grpc_exec_ctx_finish(&exec_ctx);
+  GPR_ASSERT(state == GRPC_CHANNEL_FATAL_FAILURE);
+  GPR_ASSERT(g_counter == 1);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  grpc_connectivity_state_trace = 1;
+  test_connectivity_state_name();
+  test_check();
+  test_subscribe_then_unsubscribe();
+  test_subscribe_then_destroy();
+  test_subscribe_with_failure_then_destroy();
+  return 0;
+}