DiagnosticsSmokeTest.ino

#include "Insights.h"
#include "WiFi.h"
#include "inttypes.h"
#include "esp_err.h"
#include "esp_random.h"

const char insights_auth_key[] = "<ENTER YOUR AUTH KEY>";

#define WIFI_SSID       "<ENTER YOUR SSID>"
#define WIFI_PASSPHRASE "<ENTER YOUR PASSWORD>"

#define MAX_CRASHES 5
#define MAX_PTRS    30
#define TAG         "sketch"

RTC_NOINIT_ATTR static uint32_t s_reset_count;
static void *s_ptrs[MAX_PTRS];

static void smoke_test() {
  int dice;
  int count = 0;
  bool allocating = false;

  while (1) {
    dice = esp_random() % 500;
    log_i("dice=%d", dice);
    if (dice > 0 && dice < 150) {
      log_e("[count][%d]", count);
    } else if (dice > 150 && dice < 300) {
      log_w("[count][%d]", count);
    } else if (dice > 300 && dice < 470) {
      Insights.event(TAG, "[count][%d]", count);
    } else {
      /* 30 in 500 probability to crash */
      if (s_reset_count > MAX_CRASHES) {
        Insights.event(TAG, "[count][%d]", count);
      } else {
        log_e("[count][%d] [crash_count][%" PRIu32 "] [excvaddr][0x0f] Crashing...", count, s_reset_count);
        abort();
      }
    }

    Insights.metrics.dumpHeap();
    if (count % MAX_PTRS == 0) {
      allocating = !allocating;
      log_i("Allocating:%s\n", allocating ? "true" : "false");
    }
    if (allocating) {
      uint32_t size = 1024 * (esp_random() % 8);
      void *p = malloc(size);
      if (p) {
        memset(p, size, 'A' + (esp_random() % 26));
        log_i("Allocated %" PRIu32 " bytes", size);
      }
      s_ptrs[count % MAX_PTRS] = p;
    } else {
      free(s_ptrs[count % MAX_PTRS]);
      s_ptrs[count % MAX_PTRS] = NULL;
      log_i("Freeing some memory...");
    }

    count++;
    delay(1000);
  }
}

void setup() {
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_SSID, WIFI_PASSPHRASE);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  if (!Insights.begin(insights_auth_key)) {
    return;
  }
  Serial.println("=========================================");
  Serial.printf("ESP Insights enabled Node ID %s\n", Insights.nodeID());
  Serial.println("=========================================");

  if (esp_reset_reason() == ESP_RST_POWERON) {
    s_reset_count = 1;
  } else {
    s_reset_count++;
  }
}

void loop() {
  smoke_test();
  delay(100);
}