Add named map providers reporter to gather some stats

2019-09-13 20:01:03 +02:00
parent 788cd9d6fb
commit c19c723795
3 changed files with 102 additions and 0 deletions
@@ -0,0 +1,61 @@
+'use strict';
+
+const assert = require('assert');
+const NamedMapProviderReporter = require('../../../../../lib/cartodb/stats/reporter/named-map-provider');
+
+describe('named-map-provider-reporter', function () {
+    it('should report metrics every 100 ms', function (done) {
+        const oldStatsClient = global.statsClient;
+
+        global.statsClient = {
+            gauge: function (metric, value) {
+                this[metric] = value;
+            }
+        };
+
+        const dummyCacheEntries = [
+            {
+                k: 'foo:template_1',
+                v: { 'instantiation_1': 1 }
+            },
+            {
+                k: 'bar:template_2',
+                v: { 'instantiation_1': 1, 'instantiation_2': 2 }
+            },
+            {
+                k: 'buz:template_3',
+                v: { 'instantiation_1': 1, 'instantiation_2': 2, 'instantiation_3': 3 }
+            }
+        ];
+
+        const reporter = new NamedMapProviderReporter({
+            namedMapProviderCache: {
+                providerCache: {
+                    dump: () => dummyCacheEntries,
+                    length: dummyCacheEntries.length
+                }
+            },
+            intervalInMilliseconds: 100
+        });
+
+        reporter.start();
+
+        setTimeout(() => {
+            reporter.stop();
+
+            assert.strictEqual(
+                global.statsClient['windshaft.named-map-provider-cache.named-map.count'],
+                3
+            );
+
+            assert.strictEqual(
+                global.statsClient['windshaft.named-map-provider-cache.named-map.intantiation.count'],
+                6
+            );
+
+            global.statsClient = oldStatsClient;
+
+            done();
+        }, 110);
+    });
+});