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// @flow
/* eslint-env mocha */
import assert from 'assert'
import areIntervalsOverlapping from '.'
import context from 'assert'
describe('areIntervalsOverlapping', function () {
const initialIntervalStart = new Date(2016, 10, 10, 13, 0, 0)
const initialIntervalEnd = new Date(2016, 11, 3, 15, 0, 0)
describe("when the time intervals don't overlap", function () {
it('returns false for a valid non overlapping interval before another interval', function () {
const earlierIntervalStart = new Date(2016, 9, 25)
const earlierIntervalEnd = new Date(2016, 10, 9)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: earlierIntervalStart, end: earlierIntervalEnd }
)
assert(isOverlapping === false)
})
it('returns false for a valid non overlapping interval after another interval', function () {
const laterIntervalStart = new Date(2016, 11, 4)
const laterIntervalEnd = new Date(2016, 11, 9)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: laterIntervalStart, end: laterIntervalEnd }
)
assert(isOverlapping === false)
})
it('returns false for a non overlapping same-day interval', function () {
const sameDayIntervalStart = new Date(2016, 11, 4, 9, 0, 0)
const sameDayIntervalEnd = new Date(2016, 11, 4, 18, 0, 0)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: sameDayIntervalStart, end: sameDayIntervalEnd }
)
assert(isOverlapping === false)
})
it('returns false for an interval differing by a few hours', function () {
const oneDayOverlappingIntervalStart = new Date(2016, 11, 3, 18, 0, 0)
const oneDayOverlappingIntervalEnd = new Date(2016, 11, 14, 13, 0, 0)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{
start: oneDayOverlappingIntervalStart,
end: oneDayOverlappingIntervalEnd,
}
)
assert(isOverlapping === false)
})
it("returns false for an interval with the same startDateTime as the initial time intervals's endDateTime", function () {
const oneDayOverlapIntervalStart = new Date(2016, 11, 3, 15, 0, 0)
const oneDayOverlapIntervalEnd = new Date(2016, 11, 14, 13, 0, 0)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: oneDayOverlapIntervalStart, end: oneDayOverlapIntervalEnd }
)
assert(isOverlapping === false)
})
it("returns false for an interval with the same endDateTime as the initial time interval's startDateTime", function () {
const oneDayOverlapIntervalStart = new Date(2016, 10, 3, 15, 0, 0)
const oneDayOverlapIntervalEnd = new Date(2016, 10, 10, 13, 0, 0)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: oneDayOverlapIntervalStart, end: oneDayOverlapIntervalEnd }
)
assert(isOverlapping === false)
})
})
describe('when the time intervals overlap', function () {
it('returns true for an interval included within another interval', function () {
const includedIntervalStart = new Date(2016, 10, 14)
const includedIntervalEnd = new Date(2016, 10, 14)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: includedIntervalStart, end: includedIntervalEnd }
)
assert(isOverlapping === true)
})
it('returns true for an interval overlapping at the end', function () {
const endOverlappingIntervalStart = new Date(2016, 10, 5)
const endOverlappingIntervalEnd = new Date(2016, 10, 14)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: endOverlappingIntervalStart, end: endOverlappingIntervalEnd }
)
assert(isOverlapping === true)
})
it('returns true for an interval overlapping at the beginning', function () {
const startOverlappingIntervalStart = new Date(2016, 10, 20)
const startOverlappingIntervalEnd = new Date(2016, 11, 14)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{
start: startOverlappingIntervalStart,
end: startOverlappingIntervalEnd,
}
)
assert(isOverlapping === true)
})
it('returns true for an interval including another interval', function () {
const includingIntervalStart = new Date(2016, 10, 5)
const includingIntervalEnd = new Date(2016, 11, 15)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: includingIntervalStart, end: includingIntervalEnd }
)
assert(isOverlapping === true)
})
})
it('accepts timestamp', function () {
const initialIntervalStart = new Date(2016, 10, 10, 13, 0, 0).getTime()
const initialIntervalEnd = new Date(2016, 11, 3, 15, 0, 0).getTime()
const endOverlappingIntervalStart = new Date(2016, 10, 5).getTime()
const endOverlappingIntervalEnd = new Date(2016, 10, 14).getTime()
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: endOverlappingIntervalStart, end: endOverlappingIntervalEnd }
)
assert(isOverlapping === true)
})
it('throws an exception if the start date of the initial time interval is after the end date', function () {
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(2016, 10, 7), end: new Date(2016, 10, 3) },
{ start: new Date(2016, 10, 5), end: new Date(2016, 10, 15) }
)
assert.throws(block, RangeError)
})
it('throws an exception if the start date of the compared time interval is after the end date', function () {
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(2016, 10, 3), end: new Date(2016, 10, 7) },
{ start: new Date(2016, 10, 15), end: new Date(2016, 10, 5) }
)
assert.throws(block, RangeError)
})
it('throws an exception if the initial interval is undefined', function () {
// @ts-expect-error
const block = areIntervalsOverlapping.bind(null, undefined, {
start: new Date(2016, 10, 5),
end: new Date(2016, 10, 15),
})
assert.throws(block, RangeError)
})
it('throws an exception if the compared interval is undefined', function () {
// @ts-expect-error
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(2016, 10, 3), end: new Date(2016, 10, 7) },
undefined
)
assert.throws(block, RangeError)
})
describe('when the inclusive option is true', function () {
it("returns true for an interval with the same startDateTime as the initial time interval's endDateTime", function () {
const oneDayOverlapIntervalStart = new Date(2016, 11, 3, 15, 0, 0)
const oneDayOverlapIntervalEnd = new Date(2016, 11, 14, 13, 0, 0)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: oneDayOverlapIntervalStart, end: oneDayOverlapIntervalEnd },
{ inclusive: true }
)
assert(isOverlapping)
})
it("returns true for an interval with the same endDateTime as the initial time interval's startDateTime", function () {
const oneDayOverlapIntervalStart = new Date(2016, 10, 3, 15, 0, 0)
const oneDayOverlapIntervalEnd = new Date(2016, 10, 10, 13, 0, 0)
const isOverlapping = areIntervalsOverlapping(
{ start: initialIntervalStart, end: initialIntervalEnd },
{ start: oneDayOverlapIntervalStart, end: oneDayOverlapIntervalEnd },
{ inclusive: true }
)
assert(isOverlapping)
})
})
describe('one of the dates is `Invalid Date`', function () {
it('throws an exception if the start date of the initial time interval is `Invalid Date`', function () {
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(NaN), end: new Date(2016, 10, 3) },
{ start: new Date(2016, 10, 5), end: new Date(2016, 10, 15) }
)
assert.throws(block, RangeError)
})
it('throws an exception if the end date of the initial time interval is `Invalid Date`', function () {
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(2016, 10, 3), end: new Date(NaN) },
{ start: new Date(2016, 10, 5), end: new Date(2016, 10, 15) }
)
assert.throws(block, RangeError)
})
it('throws an exception if the start date of the compared time interval is `Invalid Date`', function () {
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(2016, 10, 3), end: new Date(2016, 10, 7) },
{ start: new Date(NaN), end: new Date(2016, 10, 5) }
)
assert.throws(block, RangeError)
})
it('throws an exception if the end date of the compared time interval is `Invalid Date`', function () {
const block = areIntervalsOverlapping.bind(
null,
{ start: new Date(2016, 10, 3), end: new Date(2016, 10, 7) },
{ start: new Date(2016, 10, 5), end: new Date(NaN) }
)
assert.throws(block, RangeError)
})
})
it('throws TypeError exception if passed less than 2 arguments', function () {
// @ts-expect-error
assert.throws(areIntervalsOverlapping.bind(null), TypeError)
// @ts-expect-error
assert.throws(areIntervalsOverlapping.bind(null, 1), TypeError)
})
})
|
