import { sum, avg, max, min } from './aggregation'

describe('aggregation', () => {
    describe('sum', () => {
        it('sum numeric values only', () => {
            const values = [1, 2, '5', 'a']
            //@ts-expect-error: incorrect types for test purpose
            expect(sum(values)).toBe(3)
        })
    })
    describe('avg', () => {
        it('avg numeric values only', () => {
            const values = [1, 2, '8', 3, 'a', null, undefined]
            //@ts-expect-error: incorrect types for test purpose
            expect(avg(values)).toBe(2)
        })
    })
    describe('max', () => {
        it('max numeric value', () => {
            const values = [1, 2, 3, null, undefined]
            //@ts-expect-error: incorrect types for test purpose
            expect(max(values)).toBe(3)
        })
        it('max date value', () => {
            const values = [new Date('2024-01-01'), new Date('2024-01-04')]
            expect(max(values)).toEqual(new Date('2024-01-04'))
        })
    })
    describe('min', () => {
        it('min numeric value', () => {
            const values = [5, 2, 3, null, undefined]
            //@ts-expect-error: incorrect types for test purpose
            expect(min(values)).toBe(2)
        })
        it('max date value', () => {
            const values = [
                new Date('2024-01-01'),
                new Date('2024-01-04'),
                undefined,
                null,
            ]
            //@ts-expect-error: incorrect types for test purpose
            expect(min(values)).toEqual(new Date('2024-01-01'))
        })
    })
})