1 files changed, 17 insertions, 9 deletions

diff --git a/test/system/MetricsCollectorTest.ts b/test/system/MetricsCollectorTest.ts
index 07867a8..eafc77d 100644
--- a/test/system/MetricsCollectorTest.ts
+++ b/test/system/MetricsCollectorTest.ts
@@ -19,13 +19,15 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-import { PrometheusFactory } from '../../src/system/PrometheusFactory';
+import {
+    PrometheusFactory,
+    PrometheusConfig,
+} from '../../src/system/PrometheusFactory';
 import { Histogram, Pushgateway, Counter, Gauge } from 'prom-client';
 import { EventEmitter } from 'events';
 import { expect } from 'chai';
 import {
     MetricsCollector as Sut,
-    PrometheusConfig,
     MetricTimer,
 } from '../../src/system/MetricsCollector';
 
@@ -35,8 +37,8 @@ describe( 'system.MetricsCollector captures events and pushes metrics', () =>
 {
     it( 'process-complete event is hooked', () =>
     {
-        let   histogram_called = false;
-        let   counter_called   = false;
+        let histogram_called = false;
+        let counter_called   = false;
 
         const emitter = new EventEmitter();
         const conf    = createMockConfig();
@@ -46,18 +48,20 @@ describe( 'system.MetricsCollector captures events and pushes metrics', () =>
             counter_cb:   () => { counter_called   = true },
         } );
 
-        new Sut( factory, conf, emitter, timer );
+        const sut = new Sut( factory, conf, emitter, timer );
 
         emitter.emit( 'delta-process-end' );
 
         expect( histogram_called ).to.be.true;
         expect( counter_called ).to.be.true;
+
+        sut.stop();
     } );
 
 
     it( 'process-error event is hooked', () =>
     {
-        let   counter_called = false;
+        let counter_called = false;
 
         const emitter = new EventEmitter();
         const conf    = createMockConfig();
@@ -66,11 +70,13 @@ describe( 'system.MetricsCollector captures events and pushes metrics', () =>
             counter_cb: () => { counter_called = true },
         } );
 
-        new Sut( factory, conf, emitter, timer );
+        const sut = new Sut( factory, conf, emitter, timer );
 
         emitter.emit( 'delta-process-error' );
 
         expect( counter_called ).to.be.true;
+
+        sut.stop();
     } );
 
 
@@ -80,7 +86,7 @@ describe( 'system.MetricsCollector captures events and pushes metrics', () =>
         const uid           = 'foo';
         const start_time_ns = 1234;
         const end_time_ns   = 5678;
-        const expected_ms   = ( end_time_ns - start_time_ns ) / 1000;
+        const expected_ms   = ( end_time_ns - start_time_ns ) / 1000000;
         const emitter       = new EventEmitter();
         const conf          = createMockConfig();
         const timer         = createMockTimer( start_time_ns, end_time_ns );
@@ -88,12 +94,14 @@ describe( 'system.MetricsCollector captures events and pushes metrics', () =>
             histogram_cb: ( n: number ) => { actual_ms = n },
         } );
 
-        new Sut( factory, conf, emitter, timer );
+        const sut = new Sut( factory, conf, emitter, timer );
 
         emitter.emit( 'delta-process-start', uid );
         emitter.emit( 'delta-process-end', uid );
 
         expect( actual_ms ).to.be.equal( expected_ms );
+
+        sut.stop();
     } );
 } );