receiver/ocmetrics: add tests on ocmetrics receiver. (#195)
receiver/ocmetrics: add tests on ocmetrics receiver. (#195)


census-instrumentation/opencensus-service,open-telemetry/opentelemetry-collector-contrib,open-telemetry/opentelemetry-collector-contrib,open-telemetry/opentelemetry-collector,open-telemetry/opentelemetry-collector,census-instrumentation/opencensus-service,open-telemetry/opentelemetry-collector