Alexander Udalov
402 lines
15 KiB
Kotlin
402 lines
15 KiB
Kotlin
/*
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* Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
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* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
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*/
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@file:OptIn(ExperimentalTime::class)
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package test.time
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import test.numbers.assertAlmostEquals
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import test.*
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import kotlin.test.*
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import kotlin.time.*
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import kotlin.random.*
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private val expectStorageUnit = DurationUnit.NANOSECONDS
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private val units = DurationUnit.values()
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class DurationTest {
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// construction white-box testing
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@Test
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fun construction() {
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@Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
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repeat(100) {
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val value = Random.nextInt(1_000_000)
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val unit = units.random()
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val expected = convertDurationUnit(value.toDouble(), unit, expectStorageUnit)
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assertEquals(expected, value.toDuration(unit).value)
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assertEquals(expected, value.toLong().toDuration(unit).value)
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assertEquals(expected, value.toDouble().toDuration(unit).value)
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}
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todo {
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assertFails { Double.NaN.toDuration(DurationUnit.SECONDS) }
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}
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}
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@Test
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fun equality() {
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val data = listOf<Pair<Double, DurationUnit>>(
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Pair(2.0, DurationUnit.DAYS),
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Pair(2.0, DurationUnit.HOURS),
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Pair(0.25, DurationUnit.MINUTES),
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Pair(1.0, DurationUnit.SECONDS),
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Pair(50.0, DurationUnit.MILLISECONDS),
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Pair(0.3, DurationUnit.MICROSECONDS),
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Pair(20_000_000_000.0, DurationUnit.NANOSECONDS),
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Pair(1.0, DurationUnit.NANOSECONDS)
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)
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for ((value, unit) in data) {
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repeat(10) {
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val d1 = value.toDuration(unit)
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val unit2 = units.random()
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val value2 = Duration.convert(value, unit, unit2)
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val d2 = value2.toDuration(unit2)
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assertEquals(d1, d2, "$value $unit in $unit2")
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assertEquals(d1.hashCode(), d2.hashCode())
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val d3 = (value2 * 2).toDuration(unit2)
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assertNotEquals(d1, d3, "$value $unit in $unit2")
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}
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}
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}
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@Test
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fun conversionFromNumber() {
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val n1 = Random.nextInt(Int.MAX_VALUE)
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val n2 = Random.nextLong(Long.MAX_VALUE)
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val n3 = Random.nextDouble()
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assertEquals(n1.toDuration(DurationUnit.DAYS), n1.days)
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assertEquals(n2.toDuration(DurationUnit.DAYS), n2.days)
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assertEquals(n3.toDuration(DurationUnit.DAYS), n3.days)
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assertEquals(n1.toDuration(DurationUnit.HOURS), n1.hours)
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assertEquals(n2.toDuration(DurationUnit.HOURS), n2.hours)
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assertEquals(n3.toDuration(DurationUnit.HOURS), n3.hours)
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assertEquals(n1.toDuration(DurationUnit.MINUTES), n1.minutes)
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assertEquals(n2.toDuration(DurationUnit.MINUTES), n2.minutes)
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assertEquals(n3.toDuration(DurationUnit.MINUTES), n3.minutes)
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assertEquals(n1.toDuration(DurationUnit.SECONDS), n1.seconds)
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assertEquals(n2.toDuration(DurationUnit.SECONDS), n2.seconds)
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assertEquals(n3.toDuration(DurationUnit.SECONDS), n3.seconds)
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assertEquals(n1.toDuration(DurationUnit.MILLISECONDS), n1.milliseconds)
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assertEquals(n2.toDuration(DurationUnit.MILLISECONDS), n2.milliseconds)
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assertEquals(n3.toDuration(DurationUnit.MILLISECONDS), n3.milliseconds)
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assertEquals(n1.toDuration(DurationUnit.MICROSECONDS), n1.microseconds)
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assertEquals(n2.toDuration(DurationUnit.MICROSECONDS), n2.microseconds)
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assertEquals(n3.toDuration(DurationUnit.MICROSECONDS), n3.microseconds)
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assertEquals(n1.toDuration(DurationUnit.NANOSECONDS), n1.nanoseconds)
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assertEquals(n2.toDuration(DurationUnit.NANOSECONDS), n2.nanoseconds)
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assertEquals(n3.toDuration(DurationUnit.NANOSECONDS), n3.nanoseconds)
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}
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@Test
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fun conversionToNumber() {
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assertEquals(24.0, 1.days.inHours)
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assertEquals(0.5, 12.hours.inDays)
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assertEquals(15.0, 0.25.hours.inMinutes)
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assertEquals(600.0, 10.minutes.inSeconds)
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assertEquals(500.0, 0.5.seconds.inMilliseconds)
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assertEquals(50_000.0, 0.05.seconds.inMicroseconds)
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assertEquals(50_000.0, 0.05.milliseconds.inNanoseconds)
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assertEquals(365 * 86400e9, 365.days.inNanoseconds)
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assertEquals(0.0, Duration.ZERO.inNanoseconds)
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assertEquals(10500, 10.5.seconds.toLongMilliseconds())
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assertEquals(11, 11.5.milliseconds.toLongMilliseconds())
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assertEquals(-11, (-11.5).milliseconds.toLongMilliseconds())
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assertEquals(252_000_000, 252.milliseconds.toLongNanoseconds())
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assertEquals(Long.MAX_VALUE, (365.days * 293).toLongNanoseconds()) // clamping overflowed value
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repeat(100) {
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val value = Random.nextLong(1000)
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val unit = units.random()
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val unit2 = units.random()
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assertAlmostEquals(Duration.convert(value.toDouble(), unit, unit2), value.toDuration(unit).toDouble(unit2))
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}
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}
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@Test
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fun componentsOfProperSum() {
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repeat(100) {
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val h = Random.nextInt(24)
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val m = Random.nextInt(60)
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val s = Random.nextInt(60)
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val ns = Random.nextInt(1e9.toInt())
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(h.hours + m.minutes + s.seconds + ns.nanoseconds).run {
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toComponents { seconds, nanoseconds ->
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assertEquals(h.toLong() * 3600 + m * 60 + s, seconds)
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assertEquals(ns, nanoseconds)
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}
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toComponents { minutes, seconds, nanoseconds ->
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assertEquals(h * 60 + m, minutes)
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assertEquals(s, seconds)
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assertEquals(ns, nanoseconds)
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}
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toComponents { hours, minutes, seconds, nanoseconds ->
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assertEquals(h, hours)
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assertEquals(m, minutes)
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assertEquals(s, seconds)
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assertEquals(ns, nanoseconds, "ns component of duration ${toIsoString()} differs too much, expected: $ns, actual: $nanoseconds")
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}
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toComponents { days, hours, minutes, seconds, nanoseconds ->
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assertEquals(0, days)
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assertEquals(h, hours)
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assertEquals(m, minutes)
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assertEquals(s, seconds)
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assertEquals(ns, nanoseconds)
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}
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}
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}
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}
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@Test
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fun componentsOfCarriedSum() {
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(36.hours + 90.minutes + 90.seconds + 1500.milliseconds).run {
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toComponents { days, hours, minutes, seconds, nanoseconds ->
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assertEquals(1, days)
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assertEquals(13, hours)
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assertEquals(31, minutes)
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assertEquals(31, seconds)
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assertEquals(500_000_000, nanoseconds)
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}
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}
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}
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@Test
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fun infinite() {
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assertTrue(Duration.INFINITE.isInfinite())
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assertTrue((-Duration.INFINITE).isInfinite())
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assertTrue(Double.POSITIVE_INFINITY.nanoseconds.isInfinite())
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// seconds converted to nanoseconds overflow to infinite
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assertTrue(Double.MAX_VALUE.seconds.isInfinite())
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assertTrue((-Double.MAX_VALUE).seconds.isInfinite())
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}
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@Test
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fun negation() {
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repeat(100) {
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val value = Random.nextLong()
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val unit = units.random()
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assertEquals((-value).toDuration(unit), -value.toDuration(unit))
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}
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}
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@Test
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fun signAndAbsoluteValue() {
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val negative = -1.seconds
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val positive = 1.seconds
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val zero = Duration.ZERO
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assertTrue(negative.isNegative())
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assertFalse(zero.isNegative())
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assertFalse(positive.isNegative())
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assertFalse(negative.isPositive())
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assertFalse(zero.isPositive())
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assertTrue(positive.isPositive())
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assertEquals(positive, negative.absoluteValue)
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assertEquals(positive, positive.absoluteValue)
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assertEquals(zero, zero.absoluteValue)
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}
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@Test
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fun addition() {
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assertEquals(1.5.hours, 1.hours + 30.minutes)
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assertEquals(0.5.days, 6.hours + 360.minutes)
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assertEquals(0.5.seconds, 200.milliseconds + 300_000.microseconds)
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}
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@Test
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fun subtraction() {
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assertEquals(10.hours, 0.5.days - 120.minutes)
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assertEquals(850.milliseconds, 1.seconds - 150.milliseconds)
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// TODO decide on INFINITE - INFINITE
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}
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@Test
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fun multiplication() {
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assertEquals(1.days, 12.hours * 2)
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assertEquals(1.days, 60.minutes * 24.0)
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assertEquals(1.microseconds, 20.nanoseconds * 50)
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assertEquals(1.days, 2 * 12.hours)
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assertEquals(12.5.hours, 12.5 * 60.minutes)
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assertEquals(1.microseconds, 50 * 20.nanoseconds)
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}
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@Test
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fun divisionByNumber() {
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assertEquals(12.hours, 1.days / 2)
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assertEquals(60.minutes, 1.days / 24.0)
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assertEquals(20.seconds, 2.minutes / 6)
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}
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@Test
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fun divisionByDuration() {
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assertEquals(24.0, 1.days / 1.hours)
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assertEquals(0.1, 9.minutes / 1.5.hours)
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assertEquals(50.0, 1.microseconds / 20.nanoseconds)
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}
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@Test
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fun toIsoString() {
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// zero
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assertEquals("PT0S", Duration.ZERO.toIsoString())
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// single unit
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assertEquals("PT24H", 1.days.toIsoString())
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assertEquals("PT1H", 1.hours.toIsoString())
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assertEquals("PT1M", 1.minutes.toIsoString())
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assertEquals("PT1S", 1.seconds.toIsoString())
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assertEquals("PT0.001S", 1.milliseconds.toIsoString())
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assertEquals("PT0.000001S", 1.microseconds.toIsoString())
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assertEquals("PT0.000000001S", 1.nanoseconds.toIsoString())
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// rounded to zero
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assertEquals("PT0S", 0.1.nanoseconds.toIsoString())
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assertEquals("PT0S", 0.9.nanoseconds.toIsoString())
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// several units combined
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assertEquals("PT24H1M", (1.days + 1.minutes).toIsoString())
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assertEquals("PT24H0M1S", (1.days + 1.seconds).toIsoString())
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assertEquals("PT24H0M0.001S", (1.days + 1.milliseconds).toIsoString())
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assertEquals("PT1H30M", (1.hours + 30.minutes).toIsoString())
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assertEquals("PT1H0M0.500S", (1.hours + 500.milliseconds).toIsoString())
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assertEquals("PT2M0.500S", (2.minutes + 500.milliseconds).toIsoString())
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assertEquals("PT1M30.500S", (90_500.milliseconds).toIsoString())
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// negative
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assertEquals("-PT23H45M", (-1.days + 15.minutes).toIsoString())
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assertEquals("-PT24H15M", (-1.days - 15.minutes).toIsoString())
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// infinite
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assertEquals("PT2147483647H", Duration.INFINITE.toIsoString())
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}
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@Test
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fun toStringInUnits() {
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var d = 1.days + 15.hours + 31.minutes + 45.seconds + 678.milliseconds + 920.microseconds + 516.34.nanoseconds
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fun test(unit: DurationUnit, vararg representations: String) {
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assertFails { d.toString(unit, -1) }
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assertEquals(representations.toList(), representations.indices.map { d.toString(unit, it) })
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}
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test(DurationUnit.DAYS, "2d", "1.6d", "1.65d", "1.647d")
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test(DurationUnit.HOURS, "40h", "39.5h", "39.53h")
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test(DurationUnit.MINUTES, "2372m", "2371.8m", "2371.76m")
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d -= 39.hours
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test(DurationUnit.SECONDS, "1906s", "1905.7s", "1905.68s", "1905.679s")
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d -= 1904.seconds
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test(DurationUnit.MILLISECONDS, "1679ms", "1678.9ms", "1678.92ms", "1678.921ms")
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d -= 1678.milliseconds
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test(DurationUnit.MICROSECONDS, "921us", "920.5us", "920.52us", "920.516us")
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d -= 920.microseconds
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// sub-nanosecond precision errors
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test(DurationUnit.NANOSECONDS, "516ns", "516.3ns", "516.34ns", "516.344ns", "516.3438ns")
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d = (d - 516.nanoseconds) / 17
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test(DurationUnit.NANOSECONDS, "0ns", "0.0ns", "0.02ns", "0.020ns", "0.0202ns")
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d = Double.MAX_VALUE.nanoseconds
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test(DurationUnit.DAYS, "2.08e+294d")
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test(DurationUnit.NANOSECONDS, "1.80e+308ns")
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assertEquals("0.500000000000s", 0.5.seconds.toString(DurationUnit.SECONDS, 100))
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assertEquals("99999000000000.000000000000ns", 99_999.seconds.toString(DurationUnit.NANOSECONDS, 15))
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assertEquals("1.00e+14ns", 100_000.seconds.toString(DurationUnit.NANOSECONDS, 9))
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d = Duration.INFINITE
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test(DurationUnit.DAYS, "Infinity", "Infinity")
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d = -Duration.INFINITE
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test(DurationUnit.NANOSECONDS, "-Infinity", "-Infinity")
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}
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@Test
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fun toStringDefault() {
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fun test(duration: Duration, vararg expectedOptions: String) {
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val actual = duration.toString()
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if (!expectedOptions.contains(actual)) {
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assertEquals<Any>(expectedOptions.toList(), duration.toString())
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}
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if (duration > Duration.ZERO)
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assertEquals("-$actual", (-duration).toString())
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}
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test(101.days, "101d")
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test(45.3.days, "45.3d")
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test(45.days, "45.0d")
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test(40.5.days, "972h")
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test(40.hours + 15.minutes, "40.3h", "40.2h")
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test(40.hours, "40.0h")
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test(12.5.hours, "750m")
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test(30.minutes, "30.0m")
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test(17.5.minutes, "17.5m")
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test(16.5.minutes, "990s")
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test(90.36.seconds, "90.4s")
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test(50.seconds, "50.0s")
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test(1.3.seconds, "1.30s")
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test(1.seconds, "1.00s")
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test(0.5.seconds, "500ms")
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test(40.2.milliseconds, "40.2ms")
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test(4.225.milliseconds, "4.23ms", "4.22ms")
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test(4.245.milliseconds, "4.25ms")
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test(1.milliseconds, "1.00ms")
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test(0.75.milliseconds, "750us")
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test(75.35.microseconds, "75.4us", "75.3us")
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test(7.25.microseconds, "7.25us")
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test(1.035.microseconds, "1.04us", "1.03us")
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test(1.005.microseconds, "1.01us", "1.00us")
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test(950.5.nanoseconds, "951ns", "950ns")
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test(85.23.nanoseconds, "85.2ns")
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test(8.235.nanoseconds, "8.24ns", "8.23ns")
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test(1.3.nanoseconds, "1.30ns")
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test(0.75.nanoseconds, "0.75ns")
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test(0.7512.nanoseconds, "0.7512ns")
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test(0.023.nanoseconds, "0.023ns")
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test(0.0034.nanoseconds, "0.0034ns")
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test(0.0000035.nanoseconds, "0.0000035ns")
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test(Duration.ZERO, "0s")
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test(365.days * 10000, "3650000d")
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test(300.days * 100000, "3.00e+7d")
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test(365.days * 100000, "3.65e+7d")
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val universeAge = 365.25.days * 13.799e9
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val planckTime = 5.4e-44.seconds
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test(universeAge, "5.04e+12d")
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test(planckTime, "5.40e-44s")
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test(Double.MAX_VALUE.nanoseconds, "2.08e+294d")
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test(Duration.INFINITE, "Infinity")
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}
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}
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