Implement Challenge redislabs-training#2

Author: matejkec

src/main/java/com/redislabs/university/RU102J/dao/MetricDaoRedisZsetImpl.java

@@ -48,10 +48,9 @@ public void insert(MeterReading reading) {
     // Challenge #2
     private void insertMetric(Jedis jedis, long siteId, double value, MetricUnit unit,
                               ZonedDateTime dateTime) {
-        // START Challenge #2
         String metricKey = RedisSchema.getDayMetricKey(siteId, unit, dateTime);
         Integer minuteOfDay = getMinuteOfDay(dateTime);
-        // END Challenge #2
+        jedis.zadd(metricKey, minuteOfDay, new MeasurementMinute(value, minuteOfDay).toString());
     }
 
     /**

src/test/java/com/redislabs/university/RU102J/dao/MetricDaoRedisZsetImplTest.java

@@ -48,22 +48,19 @@ public void generateData() {
     }
 
     // Challenge #2
-    @Ignore
     @Test
     public void testSmall() {
         testInsertAndRetrieve(1);
     }
 
     // Challenge #2
-    @Ignore
     @Test
     public void testOneDay() {
         testInsertAndRetrieve(60 * 24);
     }
 
 
     // Challenge #2
-    @Ignore
     @Test
     public void testMultipleDays() {
         testInsertAndRetrieve(60 * 70);