How to use Arb.Companion.positiveDoubles method of io.kotest.property.arbitrary.doubles class

Best Kotest code snippet using io.kotest.property.arbitrary.doubles.Arb.Companion.positiveDoubles

doubles.kt

Source:doubles.kt

1package io.kotest.property.arbitrary2import io.kotest.property.Arb3import io.kotest.property.Gen4import io.kotest.property.Shrinker5import kotlin.math.absoluteValue6private val numericEdgeCases = listOf(-1.0, -Double.MIN_VALUE, -0.0, 0.0, Double.MIN_VALUE, 1.0)7private val nonFiniteEdgeCases = listOf(Double.NEGATIVE_INFINITY, Double.NaN, Double.POSITIVE_INFINITY)8object DoubleShrinker : Shrinker<Double> {9   private val pattern = Regex("""([+-]|)([0-9]*)(\.[0-9]*|)(e[+-]?[0-9]+|)""", RegexOption.IGNORE_CASE)10   override fun shrink(value: Double): List<Double> =11      if (value == 0.0 || !value.isFinite() || value.absoluteValue < 10 * Double.MIN_VALUE)12         emptyList()13      else14         listOfNotNull(shrink(value.toString())?.toDouble())15   fun shrink(value: String): String? {16      val matches = pattern.matchEntire(value) ?: return null17      val parts = matches.groupValues.drop(1)18      val (signPart, intPart, fracPart_, expPart) = parts19      val fracPart = fracPart_.trimEnd { it == '0' }20      val numberPart = if (fracPart.isNotEmpty() && fracPart.last().isDigit()) {21         "$intPart${fracPart.dropLast(1)}"22      } else {23         val length = intPart.length24         val index = intPart.indexOfLast { it != '0' }.let { if (it == -1) length else it }25         if (index == 0) {26            return null27         }28         val head = intPart.take(index)29         val tail = intPart.takeLast(length - index - 1)30         "${head}0$tail"31      }32      return "$signPart$numberPart$expPart"33   }34}35/**36 * Returns an [Arb] that produces [Double]s from [min] to [max] (inclusive).37 * The edge cases are [Double.NEGATIVE_INFINITY], [min], -1.0, -[Double.MIN_VALUE], -0.0, 0.0, [Double.MIN_VALUE], 1.0,38 * [max], [Double.POSITIVE_INFINITY] and [Double.NaN].39 *40 * Only values in the provided range are included.41 *42 * @see numericDouble to only produce numeric [Double]s43 */44fun Arb.Companion.double(45   min: Double = -Double.MAX_VALUE,46   max: Double = Double.MAX_VALUE47): Arb<Double> = double(min..max)48/**49 * Returns an [Arb] that produces [Double]s in [range].50 * The edge cases are [Double.NEGATIVE_INFINITY], [ClosedFloatingPointRange.start], -1.0, -[Double.MIN_VALUE], -0.0,51 * 0.0, [Double.MIN_VALUE], 1.0, [ClosedFloatingPointRange.endInclusive], [Double.POSITIVE_INFINITY] and [Double.NaN]52 * which are only included if they are in the provided range.53 */54fun Arb.Companion.double(55   range: ClosedFloatingPointRange<Double> = -Double.MAX_VALUE..Double.MAX_VALUE56): Arb<Double> = arbitrary(57   (numericEdgeCases.filter { it in range } + nonFiniteEdgeCases  + listOf(range.start, range.endInclusive)).distinct(),58   DoubleShrinker59) {60   it.random.nextDouble(range.start, range.endInclusive)61}62/**63 * Returns an [Arb] that produces positive [Double]s from [Double.MIN_VALUE] to [max] (inclusive).64 * The edge cases are [Double.MIN_VALUE], 1.0, [max] and [Double.POSITIVE_INFINITY] which are only included if they are65 * in the provided range.66 */67fun Arb.Companion.positiveDouble(max: Double = Double.MAX_VALUE): Arb<Double> = double(Double.MIN_VALUE, max)68@Deprecated("use positiveDouble. Deprecated in 5.0.", ReplaceWith("positiveDouble()"))69fun Arb.Companion.positiveDoubles(): Arb<Double> = positiveDouble()70/**71 * Returns an [Arb] that produces negative [Double]s from [min] to -[Double.MIN_VALUE] (inclusive).72 * The edge cases are [Double.NEGATIVE_INFINITY], [min], -1.0 and -[Double.MIN_VALUE] which are only included if they73 * are in the provided range.74 */75fun Arb.Companion.negativeDouble(min: Double = -Double.MAX_VALUE): Arb<Double> = double(min, -Double.MIN_VALUE)76@Deprecated("use negativeDouble. Deprecated in 5.0.", ReplaceWith("negativeDouble()"))77fun Arb.Companion.negativeDoubles(): Arb<Double> = negativeDouble()78/**79 * Returns an [Arb] that produces numeric [Double]s from [min] to [max] (inclusive).80 * The edge cases are [min], -1.0, -[Double.MIN_VALUE], -0.0, 0.0, [Double.MIN_VALUE], 1.0 and [max] which are only81 * included if they are in the provided range.82 *83 * @see double to also have non-numeric [Double]s as edge cases.84 */85fun Arb.Companion.numericDouble(86   min: Double = -Double.MAX_VALUE,87   max: Double = Double.MAX_VALUE88): Arb<Double> = arbitrary(89   (numericEdgeCases.filter { it in (min..max) } + listOf(min, max)).distinct(), DoubleShrinker90) { it.random.nextDouble(min, max) }91@Deprecated("use numericDouble. Deprecated in 5.0.", ReplaceWith("numericDouble(from, to)"))92fun Arb.Companion.numericDoubles(from: Double = -Double.MAX_VALUE, to: Double = Double.MAX_VALUE): Arb<Double> =93   numericDouble(from, to)94/**95 * Returns an [Arb] that produces [DoubleArray]s where [length] produces the length of the arrays and96 * [content] produces the content of the arrays.97 */98fun Arb.Companion.doubleArray(length: Gen<Int>, content: Arb<Double>): Arb<DoubleArray> =99   toPrimitiveArray(length, content, Collection<Double>::toDoubleArray)...

Generators.kt

Source:Generators.kt

1import io.kotest.property.Arb2import io.kotest.property.Gen3import io.kotest.property.Shrinker4import io.kotest.property.arbitrary.*5import io.kotest.property.exhaustive.exhaustive6import org.lwjgl.glfw.GLFW7import kotlin.random.nextInt8fun Arb.Companion.primitiveModel(): Arb<Model> = Arb.bind(9    Arb.numericDoubles(-1.0, 1.0),10    Arb.numericDoubles(-1.0, 1.0),11    Arb.positiveDoubles(),12    Arb.positiveDoubles(),13    Arb.positiveDoubles(),14    Arb.quadtree(1),15) { offsetX, offsetY, zoom, windowWidth, windowHeight, leaf ->16    Model(17        offset = Vec2.screen(offsetX, offsetY),18        zoom = zoom,19        windowSize = Vec2.screen(windowWidth, windowHeight),20        palette = PaletteModel(1.0, 1.0),21        currentColour = Colour.white,22        world = leaf,23    )24}25fun Arb.Companion.fullModel(depth: Int): Arb<Model> = Arb.bind(26    Arb.primitiveModel(),27    Arb.quadtree(depth),28) { model, tree -> model.copy(world = tree) }29val zeroToOne = Arb.numericDoubles(0.0, 1.0)30fun Arb.Companion.colour(): Arb<Colour> = Arb.bind(31    zeroToOne, zeroToOne, zeroToOne, zeroToOne,32) { h, s, l, a -> Colour(h, s, l, a) }33fun Arb.Companion.quadtree(depth: Int): Arb<Quadtree> = arbitrary(TreeShrinker) { rs ->34    when (depth) {35        1 -> Leaf(Arb.colour().sample(rs).value)36        else -> {37            val deep = rs.random.nextInt(1..4)38            val children = Arb39                .quadtree(depth - 1)40                .many(4)41                .mapIndexed { i, deepArb ->42                    val arb = if (i != deep && rs.random.nextDouble() < 0.5) Arb.quadtree(1)43                    else deepArb44                    arb.sample(rs).value45                }46            Node(children.toTypedArray())47        }48    }49}50object TreeShrinker : Shrinker<Quadtree> {51    override fun shrink(value: Quadtree): List<Quadtree> = when (value) {52        is Leaf -> listOf()53        is Node -> value.children.asList()54    }55}56fun GLFWAction.Companion.gen(): Gen<GLFWAction> = exhaustive(GLFWAction.values().asList())57fun CursorEvent.Companion.arb(): Arb<CursorEvent> = Arb.bind(58    Arb.positiveDoubles(), Arb.positiveDoubles(),59) { x, y -> CursorEvent(Vec2.screen(x, y)) }60fun KeyEvent.Companion.arb(): Arb<KeyEvent> = Arb.bind(61    Arb.int(0..1000), GLFWAction.gen()62) { key, action -> KeyEvent(key, GLFW.glfwGetKeyScancode(key), action, 0) }63fun MouseEvent.Companion.arb(): Arb<MouseEvent> = Arb.bind(64    Arb.int(0..5), GLFWAction.gen(),65) { button, action -> MouseEvent(button, action, 0) }66fun ScrollEvent.Companion.arb(): Arb<ScrollEvent> = Arb.bind(67    Arb.numericDoubles(-2.0, 2.0), Arb.numericDoubles(-2.0, 2.0),68) { vert, hor -> ScrollEvent(vert, hor) }69fun ResizeEvent.Companion.arb(): Arb<ResizeEvent> = Arb.bind(70    Arb.int(0..4000), Arb.int(0..4000),71) { w, h -> ResizeEvent(w, h) }72fun Arb.Companion.event(): Arb<Event> = Arb.choose(73    100 to CursorEvent.arb(),74    1 to KeyEvent.arb(),75    20 to MouseEvent.arb(),76    5 to ScrollEvent.arb(),77    1 to ResizeEvent.arb(),78)...

Arb.Companion.positiveDoubles

Using AI Code Generation

1    Arb.positiveDoubles(0.0, 1.0)2    Arb.negativeDoubles(0.0, 1.0)3    Arb.doubles(0.0, 1.0)4    Arb.doubles(0.0, 1.0)5    Arb.doubles(0.0, 1.0)6    Arb.doubles(0.0, 1.0)7    Arb.doubles(0.0, 1.0)8    Arb.doubles(0.0, 1.0)9    Arb.doubles(0.0, 1.0)10    Arb.doubles(0.0, 1.0)11    Arb.doubles(0.0, 1.0)12    Arb.doubles(0.0, 1.0)13    Arb.doubles(0.0, 1.0)14    Arb.doubles(0.0, 1

Arb.Companion.positiveDoubles

Using AI Code Generation

1    fun `test positive doubles`() {2        Arb.positiveDoubles().checkAll {3            it should beGreaterThan(0.0)4        }5    }6    fun `test positive floats`() {7        Arb.positiveFloats().checkAll {8            it should beGreaterThan(0.0f)9        }10    }11    fun `test positive ints`() {12        Arb.positiveInts().checkAll {13            it should beGreaterThan(0)14        }15    }16    fun `test positive longs`() {17        Arb.positiveLongs().checkAll {18            it should beGreaterThan(0L)19        }20    }21    fun `test positive shorts`() {22        Arb.positiveShorts().checkAll {23            it should beGreaterThan(0)24        }25    }26    fun `test positive uints`() {27        Arb.positiveUInts().checkAll {28            it should beGreaterThan(0u)29        }30    }31    fun `test positive ulongs`() {32        Arb.positiveULongs().checkAll {33            it should beGreaterThan(0uL)34        }35    }36    fun `test positive ushorts`() {37        Arb.positiveUShorts().checkAll {38            it should beGreaterThan(0u)39        }40    }41    fun `test positive values`() {

Arb.Companion.positiveDoubles

Using AI Code Generation

1    val arbPositiveDouble = Arb.positiveDoubles()2    forAll(arbPositiveDouble) { value ->3    }4    val arbPositiveInt = Arb.positiveInts()5    forAll(arbPositiveInt) { value ->6    }7    val arbPositiveLong = Arb.positiveLongs()8    forAll(arbPositiveLong) { value ->9    }10    val arbPositiveShort = Arb.positiveShorts()11    forAll(arbPositiveShort) { value ->12    }13    val arbPositiveFloat = Arb.positiveFloats()14    forAll(arbPositiveFloat) { value ->15    }16    val arbPositiveDouble = Arb.positiveDoubles()17    forAll(arbPositiveDouble) { value ->18    }19    val arbPositiveInt = Arb.positiveInts()20    forAll(arbPositiveInt) { value ->21    }22    val arbPositiveLong = Arb.positiveLongs()23    forAll(arbPositiveLong) { value ->24    }25    val arbPositiveShort = Arb.positiveShorts()26    forAll(arbPositiveShort) { value ->27    }

Arb.Companion.positiveDoubles

Using AI Code Generation

1val config = PropertyTestingConfig(iterations = 1000, threads = 1, seed = 1L, invocations = 1)2property("property to test") {3forAll(config, arb) { a ->4}5}6val config = PropertyTestingConfig(iterations = 1000, threads = 1, seed = 1L, invocations = 1)7property("property to test") {8forAll(config, arb) { a ->9}10}11val config = PropertyTestingConfig(iterations = 1000, threads = 1, seed = 1L, invocations = 1)12property("property to test") {13forAll(config, arb) { a ->14}15}16val config = PropertyTestingConfig(iterations = 1000, threads = 1, seed = 1L, invocations = 1)17property("property to test") {18forAll(config, arb) { a ->19}20}21val config = PropertyTestingConfig(iterations = 1000, threads = 1, seed = 1L, invocations = 1)22property("property to test") {23forAll(config, arb) { a

Arb.Companion.positiveDoubles

Using AI Code Generation

1    }2    fun `test with positive doubles`(){3    }4I have the following imports in the file:5    import io.kotest.core.spec.style.FunSpec6    import io.kotest.matchers.shouldBe7    import io.kotest.property.Arb8    import io.kotest.property.arbitrary.doubles9    import io.kotest.property.checkAll10    import io.kotest.property.arbitrary.positiveDoubles

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