1 files changed, 15 insertions, 0 deletions
diff --git a/container-core/src/test/java/com/yahoo/container/jdisc/state/MetricsPacketsHandlerTest.java b/container-core/src/test/java/com/yahoo/container/jdisc/state/MetricsPacketsHandlerTest.java
index 92330345b50..e933f042cec 100644
--- a/container-core/src/test/java/com/yahoo/container/jdisc/state/MetricsPacketsHandlerTest.java
+++ b/container-core/src/test/java/com/yahoo/container/jdisc/state/MetricsPacketsHandlerTest.java
@@ -122,6 +122,21 @@ public class MetricsPacketsHandlerTest extends StateHandlerTestBase {
         assertEquals(3, packets.size());
     }
 
+    @Test
+    public void get_metrics_in_json_array() throws Exception {
+        metric.add("counter", 1, null);
+        incrementCurrentTimeAndAssertSnapshot(SNAPSHOT_INTERVAL);
+        String response = requestAsString("http://localhost/metrics-packets?array-formatted");
+        List<JsonNode> responseJson = toJsonPackets(response);
+        assertEquals(1, responseJson.size());
+        JsonNode metricsNode = responseJson.get(0).get(METRICS_KEY);
+        assertEquals(2,  metricsNode.size());
+
+        JsonNode counterPacket = metricsNode.get(1);
+        assertCountMetric(counterPacket, "counter.count", 1);
+
+    }
+
     private List<JsonNode> incrementTimeAndGetJsonPackets() throws Exception {
         incrementCurrentTimeAndAssertSnapshot(SNAPSHOT_INTERVAL);
         String response = requestAsString("http://localhost/metrics-packets");