From 6b900bedf59c096da19acacaffaeaebb42cdac28 Mon Sep 17 00:00:00 2001
From: "Benjamin E. Coe" <bencoe@google.com>
Date: Mon, 6 Apr 2020 12:32:49 -0700
Subject: [PATCH] test: sometimes there are no metrics from 10 minutes ago
 (#411)

---
 monitoring/snippets/metrics.js           | 8 +++-----
 monitoring/snippets/test/metrics.test.js | 6 +++++-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/monitoring/snippets/metrics.js b/monitoring/snippets/metrics.js
index 0df8929d55..39fedd3360 100644
--- a/monitoring/snippets/metrics.js
+++ b/monitoring/snippets/metrics.js
@@ -289,7 +289,6 @@ async function readTimeSeriesAggregate(projectId) {
   // [START monitoring_read_timeseries_align]
   // Imports the Google Cloud client library
   const monitoring = require('@google-cloud/monitoring');
-  const util = require('util');
 
   // Creates a client
   const client = new monitoring.MetricServiceClient();
@@ -325,11 +324,10 @@ async function readTimeSeriesAggregate(projectId) {
   console.log('CPU utilization:');
   timeSeries.forEach(data => {
     console.log(data.metric.labels.instance_name);
-    for (const p of data.points) {
-      console.log(util.inspect(p));
-    }
     console.log(`  Now: ${data.points[0].value.doubleValue}`);
-    console.log(`  10 min ago: ${data.points[1].value.doubleValue}`);
+    if (data.points.length > 1) {
+      console.log(`  10 min ago: ${data.points[1].value.doubleValue}`);
+    }
     console.log('=====');
   });
   // [END monitoring_read_timeseries_align]
diff --git a/monitoring/snippets/test/metrics.test.js b/monitoring/snippets/test/metrics.test.js
index 8f36c14b92..e184921feb 100644
--- a/monitoring/snippets/test/metrics.test.js
+++ b/monitoring/snippets/test/metrics.test.js
@@ -173,7 +173,11 @@ describe('metrics', async () => {
     timeSeries.forEach(data => {
       assert.include(output, data.metric.labels.instance_name);
       assert.include(output, ' Now: 0.');
-      assert.include(output, ' 10 min ago: 0.');
+      // Don't assert against a value from 10 minutes ago, if none is
+      // being reported by stackdriver:
+      if (data.points.length > 1) {
+        assert.include(output, ' 10 min ago: 0.');
+      }
     });
   });