packages/bms/features/step_definitions/keysound_steps.js
const steps = require('artstep')
module.exports = steps()
.Then(/^sound (\S+) references file "(.*?)"$/, function (id, file) {
expect(this.keysounds.get(id)).to.equal(file)
})
.Then(/^sound (\S+) is a null reference$/, function (id) {
void expect(this.keysounds.get(id)).to.be.undefined
})