Device side test library and test runner

tests/device/test_time/test_time.ino

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+#include <ESP8266WiFi.h>
+#include <time.h>
+#include <ESP8266HTTPClient.h>
+#include <BSTest.h>
+#include <test_config.h>
+
+BS_ENV_DECLARE();
+
+void setup()
+{
+    Serial.begin(115200);
+    WiFi.persistent(false);
+    WiFi.begin(STA_SSID, STA_PASS);
+    while (WiFi.status() != WL_CONNECTED) {
+        delay(500);
+    }
+    BS_RUN(Serial);
+}
+
+
+TEST_CASE("Can sync time", "[time]")
+{
+    int timezone = 3;
+    int dst = 0;
+
+    configTime(3 * 3600, 0, "pool.ntp.org", "time.nist.gov");
+    Serial.println("\nWaiting for time");
+    unsigned timeout = 5000;
+    unsigned start = millis();
+    while (millis() - start < timeout) {
+        time_t now = time(nullptr);
+        if (now > (2016 - 1970) * 365 * 24 * 3600) {
+            return;
+        }
+        delay(100);
+    }
+    {
+      time_t now = time(nullptr);
+      Serial.println(ctime(&now));
+    }
+    CHECK(false);
+}
+
+void loop()
+{
+}