/**
 * Copyright 2019, OpenCensus Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ import * as assert from 'assert' ; import { metricProducerManagerInstance } from '../src/metrics/export/metric-producer-manager' ; import { MetricsComponent } from '../src/metrics/metric-component' ; import { MetricRegistry } from '../src/metrics/metric-registry' ; describe ( 'MetricsComponent()' , ( ) => { let metricsComponent ; beforeEach ( ( ) => { metricProducerManagerInstance . removeAll ( ) ; metricsComponent = new MetricsComponent ( ) ; } ) ; it ( 'should return a MetricRegistry instance' , ( ) => { assert . ok ( metricsComponent . getMetricRegistry ( ) instanceof MetricRegistry ) ; } ) ; it ( 'should register metricRegistry to MetricProducerManger' , ( ) => { assert . strictEqual ( metricProducerManagerInstance . getAllMetricProducer ( ) . size , 1 ) ; assert . ok ( metricProducerManagerInstance . getAllMetricProducer ( ) . has ( metricsComponent . getMetricRegistry ( ) . getMetricProducer ( ) ) ) ; } ) ; } ) ;