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// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import nextSaturday from '.'
describe('nextSaturday', () => {
it('returns the following Saturday given various dates before the same', () => {
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 23)),
new Date(2020, 2 /* Mar */, 28)
)
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 22)),
new Date(2020, 2 /* Mar */, 28)
)
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 21)),
new Date(2020, 2 /* Mar */, 28)
)
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 20)),
new Date(2020, 2 /* Mar */, 21)
)
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 19)),
new Date(2020, 2 /* Mar */, 21)
)
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 18)),
new Date(2020, 2 /* Mar */, 21)
)
assert.deepStrictEqual(
nextSaturday(new Date(2020, 2 /* Mar */, 17)),
new Date(2020, 2 /* Mar */, 21)
)
})
it('returns `Invalid Date` if the given date is invalid', () => {
assert(nextSaturday(new Date(NaN)) instanceof Date)
})
})
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