How to use Float.shouldBeWithinPercentageOf method of io.kotest.matchers.floats.matchers class

Best Kotest code snippet using io.kotest.matchers.floats.matchers.Float.shouldBeWithinPercentageOf

matchers.kt

Source:matchers.kt Github

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1package io.kotest.matchers.floats2import io.kotest.matchers.Matcher3import io.kotest.matchers.MatcherResult4import io.kotest.matchers.should5import io.kotest.matchers.shouldBe6import io.kotest.matchers.shouldNot7import io.kotest.matchers.shouldNotBe8fun exactly(d: Float): Matcher<Float> = object : Matcher<Float> {9 override fun test(value: Float) =10 MatcherResult(11 value == d,12 { "$value is not equal to expected value $d" },13 { "$value should not be equal to $d" })14}15fun lt(x: Float) = beLessThan(x)16fun beLessThan(x: Float) = object : Matcher<Float> {17 override fun test(value: Float) =18 MatcherResult(19 value < x,20 { "$value should be < $x" },21 { "$value should not be < $x" })22}23fun lte(x: Float) = beLessThanOrEqualTo(x)24fun beLessThanOrEqualTo(x: Float) = object : Matcher<Float> {25 override fun test(value: Float) =26 MatcherResult(27 value <= x,28 { "$value should be <= $x" },29 { "$value should not be <= $x" })30}31fun gt(x: Float) = beGreaterThan(x)32fun beGreaterThan(x: Float) = object : Matcher<Float> {33 override fun test(value: Float) =34 MatcherResult(35 value > x,36 { "$value should be > $x" },37 { "$value should not be > $x" })38}39fun gte(x: Float) = beGreaterThanOrEqualTo(x)40fun beGreaterThanOrEqualTo(x: Float) = object : Matcher<Float> {41 override fun test(value: Float) =42 MatcherResult(43 value >= x,44 { "$value should be >= $x" },45 { "$value should not be >= $x" })46}47infix fun Float.shouldBeLessThan(x: Float) = this shouldBe lt(x)48infix fun Float.shouldNotBeLessThan(x: Float) = this shouldNotBe lt(x)49infix fun Float.shouldBeLessThanOrEqual(x: Float) = this shouldBe lte(x)50infix fun Float.shouldNotBeLessThanOrEqual(x: Float) = this shouldNotBe lte(x)51infix fun Float.shouldBeGreaterThan(x: Float) = this shouldBe gt(x)52infix fun Float.shouldNotBeGreaterThan(x: Float) = this shouldNotBe gt(x)53infix fun Float.shouldBeGreaterThanOrEqual(x: Float) = this shouldBe gte(x)54infix fun Float.shouldNotBeGreaterThanOrEqual(x: Float) = this shouldNotBe gte(x)55infix fun Float.shouldBeExactly(x: Float) = this shouldBe exactly(x)56infix fun Float.shouldNotBeExactly(x: Float) = this shouldNotBe exactly(x)57fun Float.shouldBeZero() = this shouldBeExactly 0f58fun Float.shouldNotBeZero() = this shouldNotBeExactly 0f59/**60 * Verifies that this float is within [percentage]% of [other]61 *62 * 90.0.shouldBeWithinPercentageOf(100.0, 10.0) // Passes63 * 50.0.shouldBeWithinPercentageOf(100.0, 50.0) // Passes64 * 30.0.shouldBeWithinPercentageOf(100.0, 10.0) // Fail65 *66 */67fun Float.shouldBeWithinPercentageOf(other: Float, percentage: Double) {68 require(percentage > 0.0) { "Percentage must be > 0.0" }69 this should beWithinPercentageOf(other, percentage)70}71/**72 * Verifies that this float is NOT within [percentage]% of [other]73 *74 * 90.0.shouldNotBeWithinPercentageOf(100.0, 10.0) // Fail75 * 50.0.shouldNotBeWithinPercentageOf(100.0, 50.0) // Fail76 * 30.0.shouldNotBeWithinPercentageOf(100.0, 10.0) // Passes77 *78 */79fun Float.shouldNotBeWithinPercentageOf(other: Float, percentage: Double) {80 require(percentage > 0.0) { "Percentage must be > 0.0" }81 this shouldNot beWithinPercentageOf(other, percentage)82}83fun beWithinPercentageOf(other: Float, percentage: Double) = object : Matcher<Float> {84 private val tolerance = other.times(percentage / 100)85 private val range = (other - tolerance)..(other + tolerance)86 override fun test(value: Float) = MatcherResult(87 value in range,88 { "$value should be in $range" },89 { "$value should not be in $range" })90}...

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FloatPercentageTest.kt

Source:FloatPercentageTest.kt Github

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1package com.sksamuel.kotest.matchers.floats2import io.kotest.assertions.throwables.shouldThrow3import io.kotest.core.spec.style.FunSpec4import io.kotest.matchers.floats.shouldBeWithinPercentageOf5import io.kotest.property.Arb6import io.kotest.property.arbitrary.bind7import io.kotest.property.arbitrary.double8import io.kotest.property.arbitrary.float9class FloatPercentageTest : FunSpec() {10 init {11 context("Percentage") {12 test("Match equal numbers") {13 Arb.bind(Arb.float(), Arb.double(0.0, 5.0)) { value, percentage ->14 value.shouldBeWithinPercentageOf(value, percentage)15 }16 }17 test("Refuse negative percentage") {18 shouldThrow<IllegalArgumentException> {19 1f.shouldBeWithinPercentageOf(1f, -0.1)20 }21 }22 test("Match close enough numbers") {23 Arb.bind(Arb.float(), Arb.double(0.0, 5.0)) { value, percentage ->24 value.shouldBeWithinPercentageOf((value - value.times(percentage / 100).toFloat()), percentage)25 value.shouldBeWithinPercentageOf((value + value.times(percentage / 100)).toFloat(), percentage)26 }27 }28 }29 }30}...

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Float.shouldBeWithinPercentageOf

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1 import io.kotest.matchers.floats.shouldBeWithinPercentageOf2 import io.kotest.matchers.floats.shouldBeGreaterThan3 import io.kotest.matchers.floats.shouldBeLessThan4 import io.kotest.matchers.floats.shouldBeBetween5 import io.kotest.matchers.floats.shouldBeNegative6 import io.kotest.matchers.floats.shouldBePositive7 import io.kotest.matchers.floats.shouldBeZero8 import io.kotest.matchers.floats.shouldBeOne9 import io.kotest.matchers.floats.shouldBeInfinite10 import io.kotest.matchers.floats.shouldBeNaN11 import io.kotest.matchers.floats.shouldBeNonPositive12 import io.kotest.matchers.floats.shouldBeNonNegative13 import io.kotest.matchers.floats.shouldBeFinite14 import io.kotest.match

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Float.shouldBeWithinPercentageOf

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1Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )2Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )3Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )4Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )5Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )6Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )7Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )8Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )9Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )10Float . shouldBeWithinPercentageOf ( 0.1f , 0.11f , 0.01f )11Float . shouldBeWithinPercentageOf (

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Float.shouldBeWithinPercentageOf

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1Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )2Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )3Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )4Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )5Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )6Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )7Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )8Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )9Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )10Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )11Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )12Float.shouldBeWithinPercentageOf ( 10.0f , 0.1f )

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Float.shouldBeWithinPercentageOf

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1 import io.kotest.matchers.floats.shouldBeWithinPercentageOf2 import io.kotest.core.spec.style.StringSpec3 class FloatTest : StringSpec({4 "should be within percentage of" {5 1.0f.shouldBeWithinPercentageOf(1.0f, 0.0f)6 1.0f.shouldBeWithinPercentageOf(1.0f, 1.0f)7 1.0f.shouldBeWithinPercentageOf(1.0f, 100.0f)8 1.0f.shouldBeWithinPercentageOf(1.0f, 101.0f)9 }10 })

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Float.shouldBeWithinPercentageOf

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1import io.kotest.matchers.floats.shouldBeWithinPercentageOf2import io.kotest.matchers.floats.shouldBeWithinTolerance3import io.kotest.matchers.floats.shouldNotBeWithinPercentageOf4import io.kotest.matchers.floats.shouldNotBeWithinTolerance5import io.kotest.matchers.floats.shouldNotBeZero6import io.kotest.matchers.floats.shouldNotBePositive7import io.kotest.matchers.floats.shouldNotBeNegative8import io.kotest.matchers.floats.shouldBeZero9import io.kotest.matchers.floats.shouldBePositive

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Float.shouldBeWithinPercentageOf

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1io.kotest.core.spec.style.StringSpec({2"Float.shouldBeWithinPercentageOf method of io.kotest.matchers.floats.matchers class" {3value.shouldBeWithinPercentageOf(12.0f, 20.0f)4}5})6io.kotest.core.spec.style.WordSpec({7"Float.shouldBeWithinPercentageOf method of io.kotest.matchers.floats.matchers class" should {8"return true" {9value.shouldBeWithinPercentageOf(12.0f, 20.0f)10}11}12})13io.kotest.core.spec.style.BehaviorSpec({14given("Float.shouldBeWithinPercentageOf method of io.kotest.matchers.floats.matchers class") {15`when`("value is 10.0f") {16then("return true") {17value.shouldBeWithinPercentageOf(12.0f, 20.0f)18}19}20}21})22io.kotest.core.spec.style.ExpectSpec({23expect("Float.shouldBeWithinPercentageOf method of io.kotest.matchers.floats.matchers class") {24context("value is 10.0f") {25value.shouldBeWithinPercentageOf(12.0f, 20.0f)26}27}28})29io.kotest.core.spec.style.FeatureSpec({30feature("Float.shouldBeWithinPercentageOf method of io.kotest.matchers.floats.matchers class") {31scenario("value is 10.0f") {32value.shouldBeWithinPercentageOf(12.0f, 20.0f)33}34}35})36io.kotest.core.spec.style.FreeSpec({

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