Verify in CI that simple query returns within 20ms (awegrzyn#71)

Author: awegrzyn

test/testQuery.cxx

@@ -40,6 +40,17 @@ BOOST_AUTO_TEST_CASE(timeStampVerify)
   BOOST_CHECK(diffZone < 1); // 1s
 }
 
+BOOST_AUTO_TEST_CASE(queryPerformance)
+{
+  auto influxdb = influxdb::InfluxDBFactory::Get("http://localhost:8086?db=test");
+  auto t1 = std::chrono::high_resolution_clock::now();
+  auto points = influxdb->query("SELECT * from test WHERE host = 'localhost'");
+  BOOST_CHECK(points.size() >= 3);
+  auto t2 = std::chrono::high_resolution_clock::now();
+  double duration = std::chrono::duration_cast<std::chrono::microseconds>(t2 - t1).count();
+  BOOST_CHECK(duration < 20000);
+}
+
 BOOST_AUTO_TEST_CASE(failedQuery1)
 {
   auto influxdb = influxdb::InfluxDBFactory::Get("http://localhost:8086?db=test");