test/parallel/test-diagnostics-channel-has-subscribers.js

1cb0ef41Sopenharmony_ci'use strict';
1cb0ef41Sopenharmony_cirequire('../common');
1cb0ef41Sopenharmony_ciconst assert = require('assert');
1cb0ef41Sopenharmony_ciconst { channel, hasSubscribers } = require('diagnostics_channel');
1cb0ef41Sopenharmony_ci
1cb0ef41Sopenharmony_ciconst dc = channel('test');
1cb0ef41Sopenharmony_ciassert.ok(!hasSubscribers('test'));
1cb0ef41Sopenharmony_ci
1cb0ef41Sopenharmony_cidc.subscribe(() => {});
1cb0ef41Sopenharmony_ciassert.ok(hasSubscribers('test'));