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-rw-r--r--test/core/statistics/window_stats_test.cc304
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diff --git a/test/core/statistics/window_stats_test.cc b/test/core/statistics/window_stats_test.cc
deleted file mode 100644
index b17c61a47b..0000000000
--- a/test/core/statistics/window_stats_test.cc
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- *
- * 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 "src/core/ext/census/window_stats.h"
-#include <grpc/support/log.h>
-#include <grpc/support/time.h>
-#include <stdlib.h>
-#include "test/core/util/test_config.h"
-
-typedef struct test_stat {
- double value1;
- int value2;
-} test_stat;
-
-void add_test_stat(void* base, const void* addme) {
- test_stat* b = (test_stat*)base;
- const test_stat* a = (const test_stat*)addme;
- b->value1 += a->value1;
- b->value2 += a->value2;
-}
-
-void add_proportion_test_stat(double p, void* base, const void* addme) {
- test_stat* b = (test_stat*)base;
- const test_stat* a = (const test_stat*)addme;
- b->value1 += p * a->value1;
- b->value2 += p * a->value2 + 0.5; /* +0.5 is poor mans (no c99) round() */
-}
-
-const struct census_window_stats_stat_info kMyStatInfo = {
- sizeof(test_stat), NULL, add_test_stat, add_proportion_test_stat};
-
-const gpr_timespec kMilliSecInterval = {0, 1000000, GPR_CLOCK_MONOTONIC};
-const gpr_timespec kSecInterval = {1, 0, GPR_CLOCK_MONOTONIC};
-const gpr_timespec kMinInterval = {60, 0 GPR_CLOCK_MONOTONIC};
-const gpr_timespec kHourInterval = {3600, 0, GPR_CLOCK_MONOTONIC};
-const gpr_timespec kPrimeInterval = {0, 101, GPR_CLOCK_MONOTONIC};
-
-static int compare_double(double a, double b, double epsilon) {
- if (a >= b) {
- return (a > b + epsilon) ? 1 : 0;
- } else {
- return (b > a + epsilon) ? -1 : 0;
- }
-}
-
-void empty_test(void) {
- census_window_stats_sums result;
- const gpr_timespec zero = {0, 0, GPR_CLOCK_MONOTONIC};
- test_stat sum;
- struct census_window_stats* stats =
- census_window_stats_create(1, &kMinInterval, 5, &kMyStatInfo);
- GPR_ASSERT(stats != NULL);
- result.statistic = &sum;
- census_window_stats_get_sums(stats, zero, &result);
- GPR_ASSERT(result.count == 0 && sum.value1 == 0 && sum.value2 == 0);
- census_window_stats_get_sums(stats, gpr_now(GPR_CLOCK_REALTIME), &result);
- GPR_ASSERT(result.count == 0 && sum.value1 == 0 && sum.value2 == 0);
- census_window_stats_destroy(stats);
-}
-
-void one_interval_test(void) {
- const test_stat value = {0.1, 4};
- const double epsilon = 1e10 - 11;
- gpr_timespec when = {0, 0, GPR_CLOCK_MONOTONIC};
- census_window_stats_sums result;
- test_stat sum;
- /* granularity == 5 so width of internal windows should be 12s */
- struct census_window_stats* stats =
- census_window_stats_create(1, &kMinInterval, 5, &kMyStatInfo);
- GPR_ASSERT(stats != NULL);
- /* phase 1: insert a single value at t=0s, and check that various measurement
- times result in expected output values */
- census_window_stats_add(stats, when, &value);
- result.statistic = &sum;
- /* when = 0s, values extracted should be everything */
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 1, epsilon) == 0 &&
- compare_double(sum.value1, value.value1, epsilon) == 0 &&
- sum.value2 == value.value2);
- /* when = 6,30,60s, should be all of the data */
- when.tv_sec = 6;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 1.0, epsilon) == 0 &&
- compare_double(sum.value1, value.value1, epsilon) == 0 &&
- sum.value2 == value.value2);
- /* when == 30s,60s, should be all of the data */
- when.tv_sec = 30;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 1.0, epsilon) == 0 &&
- compare_double(sum.value1, value.value1, epsilon) == 0 &&
- sum.value2 == value.value2);
- when.tv_sec = 60;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 1.0, epsilon) == 0 &&
- compare_double(sum.value1, value.value1, epsilon) == 0 &&
- sum.value2 == value.value2);
- /* when = 66s, should be half (only take half of bottom bucket) */
- when.tv_sec = 66;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 0.5, epsilon) == 0 &&
- compare_double(sum.value1, value.value1 / 2, epsilon) == 0 &&
- sum.value2 == value.value2 / 2);
- /* when = 72s, should be completely out of window */
- when.tv_sec = 72;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 0, epsilon) == 0 &&
- compare_double(sum.value1, 0, epsilon) == 0 && sum.value2 == 0);
-
- /* phase 2: tear down and do as before, but inserting two values */
- census_window_stats_destroy(stats);
- stats = census_window_stats_create(1, &kMinInterval, 5, &kMyStatInfo);
- GPR_ASSERT(stats != NULL);
- when.tv_sec = 0;
- when.tv_nsec = 17;
- census_window_stats_add(stats, when, &value);
- when.tv_sec = 1;
- census_window_stats_add(stats, when, &value);
- when.tv_sec = 0;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 0, epsilon) == 0 &&
- compare_double(sum.value1, 0, epsilon) == 0 && sum.value2 == 0);
- /* time = 3s, 30s, should get all data */
- when.tv_sec = 3;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 2, epsilon) == 0 &&
- compare_double(sum.value1, 2 * value.value1, epsilon) == 0 &&
- sum.value2 == 2 * value.value2);
- when.tv_sec = 30;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(compare_double(result.count, 2, epsilon) == 0 &&
- compare_double(sum.value1, 2 * value.value1, epsilon) == 0 &&
- sum.value2 == 2 * value.value2);
-
- /* phase 3: insert into "middle" bucket, and force a shift, pushing out
- the two values in bottom bucket */
- when.tv_sec = 30;
- census_window_stats_add(stats, when, &value);
- when.tv_sec = 76;
- census_window_stats_add(stats, when, &value);
- when.tv_sec = 0;
- census_window_stats_get_sums(stats, when, &result);
- GPR_ASSERT(result.count == 0 && sum.value1 == 0 && sum.value2 == 0);
- when.tv_sec = 30;
- census_window_stats_get_sums(stats, when, &result);
- /* half of the single value in the 30 second bucket */
- GPR_ASSERT(compare_double(result.count, 0.5, epsilon) == 0 &&
- compare_double(sum.value1, value.value1 / 2, epsilon) == 0 &&
- sum.value2 == value.value2 / 2);
- when.tv_sec = 74;
- census_window_stats_get_sums(stats, when, &result);
- /* half of the 76 second bucket, all of the 30 second bucket */
- GPR_ASSERT(compare_double(result.count, 1.5, epsilon) == 0 &&
- compare_double(sum.value1, value.value1 * 1.5, epsilon) == 0 &&
- sum.value2 == value.value2 / 2 * 3);
- when.tv_sec = 76;
- census_window_stats_get_sums(stats, when, &result);
- /* >=76s, get all of the 76 second bucket, all of the 30 second bucket */
- GPR_ASSERT(compare_double(result.count, 2, epsilon) == 0 &&
- compare_double(sum.value1, value.value1 * 2, epsilon) == 0 &&
- sum.value2 == value.value2 * 2);
- when.tv_sec = 78;
- census_window_stats_get_sums(stats, when, &result);
- /* half of the 76 second bucket, all of the 30 second bucket */
- GPR_ASSERT(compare_double(result.count, 2, epsilon) == 0 &&
- compare_double(sum.value1, value.value1 * 2, epsilon) == 0 &&
- sum.value2 == value.value2 * 2);
- census_window_stats_destroy(stats);
-}
-
-void many_interval_test(void) {
- gpr_timespec intervals[4];
- const test_stat value = {123.45, 8};
- const double epsilon = 1e10 - 11;
- gpr_timespec when = {3600, 0, GPR_CLOCK_MONOTONIC}; /* one hour */
- census_window_stats_sums result[4];
- test_stat sums[4];
- int i;
- struct census_window_stats* stats;
- intervals[0] = kMilliSecInterval;
- intervals[1] = kSecInterval;
- intervals[2] = kMinInterval;
- intervals[3] = kHourInterval;
- for (i = 0; i < 4; i++) {
- result[i].statistic = &sums[i];
- }
- stats = census_window_stats_create(4, intervals, 100, &kMyStatInfo);
- GPR_ASSERT(stats != NULL);
- /* add 10 stats within half of each time range */
- for (i = 0; i < 10; i++) {
- when.tv_sec += 180; /* covers 30 min of one hour range */
- census_window_stats_add(stats, when, &value);
- }
- when.tv_sec += 120;
- for (i = 0; i < 10; i++) {
- when.tv_sec += 3; /* covers 30 sec of one minute range */
- census_window_stats_add(stats, when, &value);
- }
- when.tv_sec += 2;
- for (i = 0; i < 10; i++) {
- when.tv_nsec += 50000000; /* covers 0.5s of 1s range */
- census_window_stats_add(stats, when, &value);
- }
- when.tv_nsec += 2000000;
- for (i = 0; i < 10; i++) {
- when.tv_nsec += 50000; /* covers 0.5 ms of 1 ms range */
- census_window_stats_add(stats, when, &value);
- }
- when.tv_nsec += 20000;
- census_window_stats_get_sums(stats, when, result);
- GPR_ASSERT(compare_double(result[0].count, 10, epsilon) == 0 &&
- compare_double(sums[0].value1, value.value1 * 10, epsilon) == 0 &&
- sums[0].value2 == value.value2 * 10);
- when.tv_nsec += 20000000;
- census_window_stats_get_sums(stats, when, result);
- GPR_ASSERT(compare_double(result[1].count, 20, epsilon) == 0 &&
- compare_double(sums[1].value1, value.value1 * 20, epsilon) == 0 &&
- sums[1].value2 == value.value2 * 20);
- when.tv_sec += 2;
- census_window_stats_get_sums(stats, when, result);
- GPR_ASSERT(compare_double(result[2].count, 30, epsilon) == 0 &&
- compare_double(sums[2].value1, value.value1 * 30, epsilon) == 0 &&
- sums[2].value2 == value.value2 * 30);
- when.tv_sec += 72;
- census_window_stats_get_sums(stats, when, result);
- GPR_ASSERT(compare_double(result[3].count, 40, epsilon) == 0 &&
- compare_double(sums[3].value1, value.value1 * 40, epsilon) == 0 &&
- sums[3].value2 == value.value2 * 40);
- census_window_stats_destroy(stats);
-}
-
-void rolling_time_test(void) {
- const test_stat value = {0.1, 4};
- gpr_timespec when = {0, 0, GPR_CLOCK_MONOTONIC};
- census_window_stats_sums result;
- test_stat sum;
- int i;
- gpr_timespec increment = {0, 0, GPR_CLOCK_MONOTONIC};
- struct census_window_stats* stats =
- census_window_stats_create(1, &kMinInterval, 7, &kMyStatInfo);
- GPR_ASSERT(stats != NULL);
- srand(gpr_now(GPR_CLOCK_REALTIME).tv_nsec);
- for (i = 0; i < 100000; i++) {
- increment.tv_nsec = rand() % 100000000; /* up to 1/10th second */
- when = gpr_time_add(when, increment);
- census_window_stats_add(stats, when, &value);
- }
- result.statistic = &sum;
- census_window_stats_get_sums(stats, when, &result);
- /* With 1/20th second average between samples, we expect 20*60 = 1200
- samples on average. Make sure we are within 100 of that. */
- GPR_ASSERT(compare_double(result.count, 1200, 100) == 0);
- census_window_stats_destroy(stats);
-}
-
-#include <stdio.h>
-void infinite_interval_test(void) {
- const test_stat value = {0.1, 4};
- gpr_timespec when = {0, 0, GPR_CLOCK_MONOTONIC};
- census_window_stats_sums result;
- test_stat sum;
- int i;
- const int count = 100000;
- gpr_timespec increment = {0, 0, GPR_CLOCK_MONOTONIC};
- gpr_timespec temp = gpr_inf_future(GPR_CLOCK_REALTIME);
- struct census_window_stats* stats = census_window_stats_create(
- 1, &gpr_inf_future(GPR_CLOCK_REALTIME), 10, &kMyStatInfo);
- srand(gpr_now(GPR_CLOCK_REALTIME).tv_nsec);
- for (i = 0; i < count; i++) {
- increment.tv_sec = rand() % 21600; /* 6 hours */
- when = gpr_time_add(when, increment);
- census_window_stats_add(stats, when, &value);
- }
- result.statistic = &sum;
- census_window_stats_get_sums(stats, when, &result);
- /* The only thing it makes sense to compare for "infinite" periods is the
- total counts */
- GPR_ASSERT(result.count == count);
- census_window_stats_destroy(stats);
-}
-
-int main(int argc, char* argv[]) {
- grpc_test_init(argc, argv);
- empty_test();
- one_interval_test();
- many_interval_test();
- rolling_time_test();
- infinite_interval_test();
- return 0;
-}
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