it('treats null as zeroes', () => {
const withNulls = {
optimistic: 2,
realistic: null,
pessimistic: null
}
const withZeroes = {
optimistic: 2,
realistic: 0,
pessimistic: 0
}
expect(pert(withNulls)).toEqual(pert(withZeroes))
})
return function(e) {
const newEstimate = this.extractEstimate(e, type)
const estimateData = Object.assign({}, this.state, {[type]: newEstimate})
this.setState({
[type]: newEstimate,
estimate: pert(estimateData)
})
}.bind(this)
it('calculates estimate', () => {
const estimates = {
optimistic: 1,
realistic: 2,
pessimistic: 3
}
expect(pert(estimates)).toEqual(2.75)
})
it('returns null if all estimates are missing', () => {
const estimates = {
optimistic: null,
realistic: null,
pessimistic: null
}
expect(pert(estimates)).toEqual(null)
})