var createExperiments = require( '../../src/experiments' ); QUnit.module( 'ext.popups/experiments#weightedBoolean' ); QUnit.test( 'it should call mw.experiments#getBucket', function ( assert ) { var getBucketStub = this.sandbox.stub(), stubMWExperiments = { getBucket: getBucketStub }, experiments = createExperiments( stubMWExperiments ); experiments.weightedBoolean( 'foo', 0.2, 'barbaz' ); assert.ok( getBucketStub.calledOnce ); assert.deepEqual( getBucketStub.getCall( 0 ).args, [ { enabled: true, name: 'foo', buckets: { 'true': 0.2, 'false': 0.8 // 1 - 0.2 } }, 'barbaz' ] ); // --- getBucketStub.returns( 'true' ); assert.ok( experiments.weightedBoolean( 'foo', 0.2, 'barbaz' ), 'It should return true if the bucket is "true".' ); } );