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-rw-r--r--test/core/support/log_test.cc108
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diff --git a/test/core/support/log_test.cc b/test/core/support/log_test.cc
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+/*
+ *
+ * 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 <grpc/support/log.h>
+
+#include <stdbool.h>
+#include <string.h>
+
+#include "src/core/lib/support/env.h"
+#include "test/core/util/test_config.h"
+
+static bool log_func_reached = false;
+
+static void test_callback(gpr_log_func_args* args) {
+ GPR_ASSERT(0 == strcmp(__FILE__, args->file));
+ GPR_ASSERT(args->severity == GPR_LOG_SEVERITY_INFO);
+ GPR_ASSERT(0 == strcmp(args->message, "hello 1 2 3"));
+}
+
+static void test_should_log(gpr_log_func_args* args) {
+ log_func_reached = true;
+}
+
+static void test_should_not_log(gpr_log_func_args* args) { GPR_ASSERT(false); }
+
+#define test_log_function_reached(SEVERITY) \
+ gpr_set_log_function(test_should_log); \
+ log_func_reached = false; \
+ gpr_log_message(SEVERITY, "hello 1 2 3"); \
+ GPR_ASSERT(log_func_reached); \
+ log_func_reached = false; \
+ gpr_log(SEVERITY, "hello %d %d %d", 1, 2, 3); \
+ GPR_ASSERT(log_func_reached);
+
+#define test_log_function_unreached(SEVERITY) \
+ gpr_set_log_function(test_should_not_log); \
+ gpr_log_message(SEVERITY, "hello 1 2 3"); \
+ gpr_log(SEVERITY, "hello %d %d %d", 1, 2, 3);
+
+int main(int argc, char** argv) {
+ grpc_test_init(argc, argv);
+ /* test logging at various verbosity levels */
+ gpr_log(GPR_DEBUG, "%s", "hello world");
+ gpr_log(GPR_INFO, "%s", "hello world");
+ gpr_log(GPR_ERROR, "%s", "hello world");
+ /* should succeed */
+ GPR_ASSERT(1);
+ gpr_set_log_function(test_callback);
+ gpr_log_message(GPR_INFO, "hello 1 2 3");
+ gpr_log(GPR_INFO, "hello %d %d %d", 1, 2, 3);
+ gpr_set_log_function(NULL);
+
+ /* gpr_log_verbosity_init() will be effective only once, and only before
+ * gpr_set_log_verbosity() is called */
+ gpr_setenv("GRPC_VERBOSITY", "ERROR");
+ gpr_log_verbosity_init();
+
+ test_log_function_reached(GPR_ERROR);
+ test_log_function_unreached(GPR_INFO);
+ test_log_function_unreached(GPR_DEBUG);
+
+ /* gpr_log_verbosity_init() should not be effective */
+ gpr_setenv("GRPC_VERBOSITY", "DEBUG");
+ gpr_log_verbosity_init();
+ test_log_function_reached(GPR_ERROR);
+ test_log_function_unreached(GPR_INFO);
+ test_log_function_unreached(GPR_DEBUG);
+
+ gpr_set_log_verbosity(GPR_LOG_SEVERITY_DEBUG);
+ test_log_function_reached(GPR_ERROR);
+ test_log_function_reached(GPR_INFO);
+ test_log_function_reached(GPR_DEBUG);
+
+ gpr_set_log_verbosity(GPR_LOG_SEVERITY_INFO);
+ test_log_function_reached(GPR_ERROR);
+ test_log_function_reached(GPR_INFO);
+ test_log_function_unreached(GPR_DEBUG);
+
+ gpr_set_log_verbosity(GPR_LOG_SEVERITY_ERROR);
+ test_log_function_reached(GPR_ERROR);
+ test_log_function_unreached(GPR_INFO);
+ test_log_function_unreached(GPR_DEBUG);
+
+ /* gpr_log_verbosity_init() should not be effective */
+ gpr_setenv("GRPC_VERBOSITY", "DEBUG");
+ gpr_log_verbosity_init();
+ test_log_function_reached(GPR_ERROR);
+ test_log_function_unreached(GPR_INFO);
+ test_log_function_unreached(GPR_DEBUG);
+
+ /* TODO(ctiller): should we add a GPR_ASSERT failure test here */
+ return 0;
+}