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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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128 lines
3.1 KiB
128 lines
3.1 KiB
7 years ago
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/*
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*
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* Copyright 2017 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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extern "C" {
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#include "src/core/lib/debug/stats.h"
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}
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#include <grpc/grpc.h>
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#include <grpc/support/log.h>
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#include <gtest/gtest.h>
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namespace grpc {
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namespace testing {
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class Snapshot {
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public:
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Snapshot() { grpc_stats_collect(&begin_); }
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grpc_stats_data delta() {
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grpc_stats_data now;
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grpc_stats_collect(&now);
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grpc_stats_data delta;
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grpc_stats_diff(&now, &begin_, &delta);
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return delta;
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}
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private:
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grpc_stats_data begin_;
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};
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TEST(StatsTest, IncCounters) {
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for (int i = 0; i < GRPC_STATS_COUNTER_COUNT; i++) {
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Snapshot snapshot;
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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GRPC_STATS_INC_COUNTER(&exec_ctx, (grpc_stats_counters)i);
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grpc_exec_ctx_finish(&exec_ctx);
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EXPECT_EQ(snapshot.delta().counters[i], 1);
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}
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}
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TEST(StatsTest, IncSpecificCounter) {
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Snapshot snapshot;
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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GRPC_STATS_INC_SYSCALL_POLL(&exec_ctx);
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grpc_exec_ctx_finish(&exec_ctx);
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EXPECT_EQ(snapshot.delta().counters[GRPC_STATS_COUNTER_SYSCALL_POLL], 1);
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}
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static int FindExpectedBucket(int i, int j) {
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if (j < 0) {
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return 0;
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}
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if (j >=
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grpc_stats_histo_bucket_boundaries[i][grpc_stats_histo_buckets[i] - 1]) {
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return grpc_stats_histo_buckets[i] - 1;
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}
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int r = 0;
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while (grpc_stats_histo_bucket_boundaries[i][r + 1] <= j) r++;
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return r;
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}
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static int FindNonZeroBucket(const grpc_stats_data& data, int i) {
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for (int j = 0; j < grpc_stats_histo_buckets[i]; j++) {
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if (data.histograms[grpc_stats_histo_start[i] + j] != 0) {
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return j;
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}
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}
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return -1;
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}
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TEST(StatsTest, IncHistogram) {
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for (int i = 0; i < GRPC_STATS_HISTOGRAM_COUNT; i++) {
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for (int j = -1000;
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j <
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grpc_stats_histo_bucket_boundaries[i]
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[grpc_stats_histo_buckets[i] - 1] +
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1000;
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j++) {
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gpr_log(GPR_DEBUG, "histo:%d value:%d", i, j);
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Snapshot snapshot;
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int expected_bucket = FindExpectedBucket(i, j);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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grpc_stats_inc_histogram[i](&exec_ctx, j);
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grpc_exec_ctx_finish(&exec_ctx);
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auto delta = snapshot.delta();
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int got_bucket = FindNonZeroBucket(delta, i);
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EXPECT_EQ(expected_bucket, got_bucket);
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EXPECT_EQ(delta.histograms[grpc_stats_histo_start[i] + expected_bucket],
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1);
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}
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}
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}
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} // namespace testing
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} // namespace grpc
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int main(int argc, char** argv) {
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::testing::InitGoogleTest(&argc, argv);
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grpc_init();
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int ret = RUN_ALL_TESTS();
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grpc_shutdown();
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return ret;
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}
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