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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* CMetrics
* ========
* Copyright 2021-2022 The CMetrics 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 <cmetrics/cmetrics.h>
#include <cmetrics/cmt_counter.h>
#include <cmetrics/cmt_encode_msgpack.h>
#include <cmetrics/cmt_decode_msgpack.h>
#include <cmetrics/cmt_encode_prometheus.h>
#include <cmetrics/cmt_encode_text.h>
#include "cmt_tests.h"
static struct cmt *generate_encoder_test_data()
{
double val;
uint64_t ts;
struct cmt *cmt;
struct cmt_counter *c;
printf("version: %s", cmt_version());
cmt = cmt_create();
c = cmt_counter_create(cmt, "kubernetes", "network", "load", "Network load",
2, (char *[]) {"hostname", "app"});
ts = cfl_time_now();
cmt_counter_get_val(c, 0, NULL, &val);
cmt_counter_inc(c, ts, 0, NULL);
cmt_counter_add(c, ts, 2, 0, NULL);
cmt_counter_get_val(c, 0, NULL, &val);
cmt_counter_inc(c, ts, 2, (char *[]) {"localhost", "cmetrics"});
cmt_counter_get_val(c, 2, (char *[]) {"localhost", "cmetrics"}, &val);
cmt_counter_add(c, ts, 10.55, 2, (char *[]) {"localhost", "test"});
cmt_counter_get_val(c, 2, (char *[]) {"localhost", "test"}, &val);
cmt_counter_set(c, ts, 12.15, 2, (char *[]) {"localhost", "test"});
cmt_counter_set(c, ts, 1, 2, (char *[]) {"localhost", "test"});
return cmt;
}
void test_msgpack()
{
struct cmt *cmt = NULL;
struct cmt *cmt2 = NULL;
int result = 0;
size_t offset = 0;
char *msgpack_buffer_a = NULL;
char *msgpack_buffer_b = NULL;
size_t msgpack_buffer_size_a = 0;
size_t msgpack_buffer_size_b = 0;
cmt_initialize();
cmt = generate_encoder_test_data();
TEST_CHECK(NULL != cmt);
result = cmt_encode_msgpack_create(cmt, &msgpack_buffer_a, &msgpack_buffer_size_a);
TEST_CHECK(0 == result);
result = cmt_decode_msgpack_create(&cmt2, msgpack_buffer_a, msgpack_buffer_size_a,
&offset);
TEST_CHECK(0 == result);
result = cmt_encode_msgpack_create(cmt, &msgpack_buffer_b, &msgpack_buffer_size_b);
TEST_CHECK(0 == result);
TEST_CHECK(msgpack_buffer_size_a == msgpack_buffer_size_b);
result = memcmp(msgpack_buffer_a, msgpack_buffer_b, msgpack_buffer_size_a);
cmt_destroy(cmt);
cmt_decode_msgpack_destroy(cmt2);
cmt_encode_msgpack_destroy(msgpack_buffer_a);
cmt_encode_msgpack_destroy(msgpack_buffer_b);
}
void test_prometheus()
{
struct cmt *cmt = NULL;
cfl_sds_t prom = NULL;
cmt_initialize();
cmt = generate_encoder_test_data();
TEST_CHECK(NULL != cmt);
prom = cmt_encode_prometheus_create(cmt, CMT_TRUE);
TEST_CHECK(NULL != prom);
printf("%s\n", prom);
cmt_destroy(cmt);
cmt_encode_prometheus_destroy(prom);
}
void test_text()
{
struct cmt *cmt = NULL;
cfl_sds_t text = NULL;
cmt_initialize();
cmt = generate_encoder_test_data();
TEST_CHECK(cmt != NULL);
text = cmt_encode_text_create(cmt);
TEST_CHECK(text != NULL);
cmt_destroy(cmt);
cmt_encode_text_destroy(text);
}
void test_counter()
{
int ret;
double val = 1;
uint64_t ts;
struct cmt *cmt;
struct cmt_counter *c;
cmt_initialize();
cmt = cmt_create();
TEST_CHECK(cmt != NULL);
/* Create a counter metric type */
c = cmt_counter_create(cmt, "kubernetes", "network", "load", "Network load",
0, NULL);
TEST_CHECK(c != NULL);
/* Timestamp */
ts = cfl_time_now();
/* Default value */
ret = cmt_counter_get_val(c, 0, NULL, &val);
TEST_CHECK(ret == 0);
TEST_CHECK(val == 0.0);
/* Increment by one */
cmt_counter_inc(c, ts, 0, NULL);
ret = cmt_counter_get_val(c, 0, NULL, &val);
TEST_CHECK(val == 1.0);
/* Add two */
cmt_counter_add(c, ts, 2, 0, NULL);
ret = cmt_counter_get_val(c, 0, NULL, &val);
TEST_CHECK(ret == 0);
TEST_CHECK(val == 3.0);
cmt_destroy(cmt);
}
void test_labels()
{
int ret;
double val;
uint64_t ts;
struct cmt *cmt;
struct cmt_counter *c;
cmt_initialize();
cmt = cmt_create();
TEST_CHECK(cmt != NULL);
/* Create a counter metric type */
c = cmt_counter_create(cmt, "kubernetes", "network", "load", "Network load",
2, (char *[]) {"hostname", "app"});
TEST_CHECK(c != NULL);
/* Timestamp */
ts = cfl_time_now();
/*
* Test 1: hash zero (no labels)
* -----------------------------
*/
/*
* Default value: this call should fail since the metric has not been
* initialized.
*/
ret = cmt_counter_get_val(c, 0, NULL, &val);
TEST_CHECK(ret == -1);
/* Increment hash zero by 1 */
ret = cmt_counter_inc(c, ts, 0, NULL);
TEST_CHECK(ret == 0);
/* validate value */
ret = cmt_counter_get_val(c, 0, NULL, &val);
TEST_CHECK(ret == 0);
TEST_CHECK(val == 1.0);
/* Add two */
ret = cmt_counter_add(c, ts, 2, 0, NULL);
TEST_CHECK(ret == 0);
/* Check that hash zero val is 3.0 */
ret = cmt_counter_get_val(c, 0, NULL, &val);
TEST_CHECK(ret == 0);
TEST_CHECK(val == 3.0);
/*
* Test 2: custom labels
* ---------------------
*/
/* Increment custom metric */
ret = cmt_counter_inc(c, ts, 2, (char *[]) {"localhost", "cmetrics"});
TEST_CHECK(ret == 0);
/* Check val = 1 */
ret = cmt_counter_get_val(c, 2, (char *[]) {"localhost", "cmetrics"}, &val);
TEST_CHECK(ret == 0);
TEST_CHECK(val == 1.000);
/* Add 10 to another metric using a different second label */
ret = cmt_counter_add(c, ts, 10.55, 2, (char *[]) {"localhost", "test"});
TEST_CHECK(ret == 0);
/* Validate the value */
ret = cmt_counter_get_val(c, 2, (char *[]) {"localhost", "test"}, &val);
TEST_CHECK(ret == 0);
TEST_CHECK(val == 10.55);
/* Valid counter set */
ret = cmt_counter_set(c, ts, 12.15, 2, (char *[]) {"localhost", "test"});
TEST_CHECK(ret == 0);
/* Invalid counter set */
ret = cmt_counter_set(c, ts, 1, 2, (char *[]) {"localhost", "test"});
TEST_CHECK(ret == -1);
cmt_destroy(cmt);
}
TEST_LIST = {
{"basic", test_counter},
{"labels", test_labels},
{"msgpack", test_msgpack},
{"prometheus", test_prometheus},
{"text", test_text},
{ 0 }
};
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