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How to use Multiple class of io.kotest.matchers.doubles package

Best Kotest code snippet using io.kotest.matchers.doubles.Multiple

DoubleMatchersTest.kt

Source:DoubleMatchersTest.kt

...20import io.kotest.matchers.doubles.shouldBeGreaterThan21import io.kotest.matchers.doubles.shouldBeGreaterThanOrEqual22import io.kotest.matchers.doubles.shouldBeLessThan23import io.kotest.matchers.doubles.shouldBeLessThanOrEqual24import io.kotest.matchers.doubles.shouldBeMultipleOf25import io.kotest.matchers.doubles.shouldBeNaN26import io.kotest.matchers.doubles.shouldBeNegative27import io.kotest.matchers.doubles.shouldBeNegativeInfinity28import io.kotest.matchers.doubles.shouldBePositive29import io.kotest.matchers.doubles.shouldBePositiveInfinity30import io.kotest.matchers.doubles.shouldBeZero31import io.kotest.matchers.doubles.shouldNotBeBetween32import io.kotest.matchers.doubles.shouldNotBeGreaterThan33import io.kotest.matchers.doubles.shouldNotBeGreaterThanOrEqual34import io.kotest.matchers.doubles.shouldNotBeLessThan35import io.kotest.matchers.doubles.shouldNotBeLessThanOrEqual36import io.kotest.matchers.doubles.shouldNotBeNaN37import io.kotest.matchers.doubles.shouldNotBeNegative38import io.kotest.matchers.doubles.shouldNotBeNegativeInfinity39import io.kotest.matchers.doubles.shouldNotBePositive40import io.kotest.matchers.doubles.shouldNotBePositiveInfinity41import io.kotest.matchers.doubles.shouldNotBeZero42import io.kotest.matchers.should43import io.kotest.matchers.shouldBe44import io.kotest.matchers.shouldNot45import io.kotest.matchers.shouldNotBe46import io.kotest.property.arbitrary.filterNot47import io.kotest.property.checkAll48import kotlin.Double.Companion.MAX_VALUE49import kotlin.Double.Companion.MIN_VALUE50import kotlin.Double.Companion.NEGATIVE_INFINITY51import kotlin.Double.Companion.NaN52import kotlin.Double.Companion.POSITIVE_INFINITY53import kotlin.math.absoluteValue54class DoubleMatchersTest : FreeSpec() {55  init {56    "Between matcher" - {57      "Every numeric double that is not Double.MAX_VALUE" - {58        "Should match between" - {59          "When it's equal to the first number of the range" - {60            "With tolerance" {61              checkAll(100, nonMinNorMaxValueDoubles) {62                it.shouldMatchBetween(it, it.slightlyGreater(), it.toleranceValue())63              }64            }65            "Without tolerance" {66              checkAll(100, nonMinNorMaxValueDoubles) {67                it.shouldMatchBetween(it, it.slightlyGreater(), 0.0)68              }69            }70          }71          "When it's between the first number of the range and the last one" - {72            "With tolerance" {73              checkAll(100, nonMinNorMaxValueDoubles) {74                it.shouldMatchBetween(it.slightlySmaller(), it.slightlyGreater(), it.toleranceValue())75              }76            }77            "Without tolerance" {78              checkAll(100, nonMinNorMaxValueDoubles) {79                it.shouldMatchBetween(it.slightlySmaller(), it.slightlyGreater(), 0.0)80              }81            }82          }83          "When it's equal to the last number of the range" - {84            "With tolerance" {85              checkAll(100, nonMinNorMaxValueDoubles) {86                it.shouldMatchBetween(it.slightlySmaller(), it, it.toleranceValue())87              }88            }89            "Without tolerance" {90              checkAll(100, nonMinNorMaxValueDoubles) {91                it.shouldMatchBetween(it.slightlySmaller(), it, 0.0)92              }93            }94          }95        }96        "Should not match between" - {97          "When it's smaller than the first number of the range" - {98            "With tolerance" {99              checkAll(100, nonMinNorMaxValueDoubles) {100                it.shouldNotMatchBetween(it.slightlyGreater(), it.muchGreater(), it.toleranceValue())101              }102            }103            "Without tolerance" {104              checkAll(100, nonMinNorMaxValueDoubles) {105                it.shouldNotMatchBetween(it.slightlyGreater(), it.muchGreater(), 0.0)106              }107            }108          }109          "When it's bigger than the last number of the range" - {110            "With tolerance" {111              checkAll(100, nonMinNorMaxValueDoubles) {112                it.shouldNotMatchBetween(it.muchSmaller(), it.slightlySmaller(), it.toleranceValue())113              }114            }115            "Without tolerance" {116              checkAll(100, nonMinNorMaxValueDoubles) {117                it.shouldNotMatchBetween(it.muchSmaller(), it.slightlySmaller(), 0.0)118              }119            }120          }121        }122      }123    }124    "Less than matcher" - {125      "Every numeric double" - {126        "Should be less than" - {127          "Numbers bigger than itself" {128            checkAll(100, nonMinNorMaxValueDoubles) {129              it shouldMatchLessThan it.slightlyGreater()130              it shouldMatchLessThan it.muchGreater()131            }132          }133          "Infinity" {134            checkAll(100, nonMinNorMaxValueDoubles) {135              it shouldMatchLessThan POSITIVE_INFINITY136            }137          }138        }139        "Should not be less than" - {140          "Itself" {141            checkAll(100, nonMinNorMaxValueDoubles) {142              it shouldNotMatchLessThan it143            }144          }145          "Numbers smaller than itself" {146            checkAll(100, nonMinNorMaxValueDoubles) {147              it shouldNotMatchLessThan it.slightlySmaller()148              it shouldNotMatchLessThan it.muchSmaller()149            }150          }151          "Negative Infinity" {152            checkAll(100, nonMinNorMaxValueDoubles) {153              it shouldNotMatchLessThan it154            }155          }156          "NaN" {157            checkAll(100, nonMinNorMaxValueDoubles) {158              it shouldNotMatchLessThan NaN159            }160          }161        }162      }163      "The non-numeric double" - {164        "NaN" - {165          "Should not be less than" - {166            "Any numeric double" {167              checkAll(100, nonMinNorMaxValueDoubles) {168                NaN shouldNotMatchLessThan it169              }170            }171            "Any non-numeric double" {172              nonNumericDoubles.forEach {173                NaN shouldNotMatchLessThan it174              }175            }176          }177        }178        "Positive Infinity" - {179          "Should not be less than" - {180            "Any numeric double" {181              checkAll(100, nonMinNorMaxValueDoubles) {182                POSITIVE_INFINITY shouldNotMatchLessThan it183              }184            }185            "Any non-numeric double" {186              nonNumericDoubles.forEach {187                POSITIVE_INFINITY shouldNotMatchLessThan it188              }189            }190          }191        }192        "Negative Infinity" - {193          "Should be less than" - {194            "Any numeric double" {195              checkAll(100, nonMinNorMaxValueDoubles) {196                NEGATIVE_INFINITY shouldMatchLessThan it197              }198            }199            "Positive Infinity" {200              NEGATIVE_INFINITY shouldMatchLessThan POSITIVE_INFINITY201            }202          }203          "Should not be less than" - {204            "Itself" {205              NEGATIVE_INFINITY shouldNotMatchLessThan NEGATIVE_INFINITY206            }207            "NaN" {208              NEGATIVE_INFINITY shouldNotMatchLessThan NaN209            }210          }211        }212      }213    }214    "Positive matcher" - {215      "Zero" - {216        "Should not be positive" {217          0.0.shouldNotMatchPositive()218        }219      }220      "Every positive number" - {221        "Should be positive" {222          checkAll(100, numericDoubles.filterNot { it == 0.0 }) {223            it.absoluteValue.shouldMatchPositive()224          }225        }226      }227      "Every non-positive number" - {228        "Should not be positive" {229          checkAll(100, numericDoubles) {230            (-it.absoluteValue).shouldNotMatchPositive()231          }232        }233      }234      "The non-numeric double" - {235        "Positive Infinity" - {236          "Should be positive" {237            POSITIVE_INFINITY.shouldMatchPositive()238          }239        }240        "Negative Infinity" - {241          "Should not be positive" {242            NEGATIVE_INFINITY.shouldNotMatchPositive()243          }244        }245        "NaN" - {246          "Should not be positive" {247            NaN.shouldNotMatchPositive()248          }249        }250      }251    }252    "Negative matcher" - {253      "Zero" - {254        "Should not be negative" {255          0.0.shouldNotMatchNegative()256        }257      }258      "Every negative number" - {259        "Should be negative" {260          checkAll(100, numericDoubles.filterNot { it == 0.0 }) {261            (-it.absoluteValue).shouldMatchNegative()262          }263        }264      }265      "Every non-negative number" - {266        "Should not be negative" {267          checkAll(100, numericDoubles) {268            it.absoluteValue.shouldNotMatchNegative()269          }270        }271      }272      "The non-numeric double" - {273        "Positive Infinity" - {274          "Should not be negative" {275            POSITIVE_INFINITY.shouldNotMatchNegative()276          }277        }278        "Negative Infinity" - {279          "Should be negative" {280            NEGATIVE_INFINITY.shouldMatchNegative()281          }282        }283        "NaN" - {284          "Should not be negative" {285            NaN.shouldNotMatchNegative()286          }287        }288      }289    }290     "MultipleOf matcher" - {291        "Matches a simple multiple" {292           300.0 shouldBeMultipleOf 1.0293        }294        "Fails due to precision problems" {295           shouldFail {296              3.6e300 shouldBeMultipleOf 1.2297           }298        }299     }300    "Less than or equal matcher" - {301      "Every numeric double" - {302        "Should be less than or equal" - {303          "Itself" {304            checkAll(100, nonMinNorMaxValueDoubles) {305              it shouldMatchLessThanOrEqual it306            }307          }308          "Numbers bigger than itself" {309            checkAll(100, nonMinNorMaxValueDoubles) {310              it shouldMatchLessThanOrEqual it.muchGreater()...

AssertSoftlyTest.kt

Source:AssertSoftlyTest.kt

1package com.sksamuel.kotest.matchers2import io.kotest.assertions.assertSoftly3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.assertions.withClue5import io.kotest.core.spec.style.FreeSpec6import io.kotest.matchers.collections.containExactly7import io.kotest.matchers.comparables.beLessThan8import io.kotest.matchers.doubles.negative9import io.kotest.matchers.doubles.positive10import io.kotest.matchers.doubles.shouldBeNegative11import io.kotest.matchers.ints.shouldBeLessThan12import io.kotest.matchers.ints.shouldBePositive13import io.kotest.matchers.maps.haveKey14import io.kotest.matchers.should15import io.kotest.matchers.shouldBe16import io.kotest.matchers.shouldNot17import io.kotest.matchers.shouldNotBe18import io.kotest.matchers.string.contain19import io.kotest.matchers.string.endWith20import io.kotest.matchers.string.shouldContain21import io.kotest.matchers.string.shouldNotContain22import io.kotest.matchers.string.shouldNotEndWith23import io.kotest.matchers.string.shouldStartWith24class AssertSoftlyTest : FreeSpec({25   "assertSoftly" - {26      "passes when all assertions pass" {27         assertSoftly {28            1 shouldBe 129            "foo" shouldBe "foo"30         }31      }32      "rethrows single failures" {33         val exception = shouldThrow<AssertionError> {34            assertSoftly {35               1 shouldBe 236            }37         }38         exception.message shouldBe "expected:<2> but was:<1>"39         exception.stackTrace.first().className shouldStartWith "com.sksamuel.kotest.matchers.AssertSoftlyTest"40      }41      "groups multiple failures" {42         shouldThrow<AssertionError> {43            assertSoftly {44               1 shouldBe 245               1 shouldBe 1 // should pass46               "foo" shouldNotBe "foo"47            }48         }.let {49            it.message should contain("1) expected:<2> but was:<1>")50            it.message should contain("2) \"foo\" should not equal \"foo\"")51            it.stackTrace.first().className shouldStartWith "com.sksamuel.kotest.matchers.AssertSoftlyTest"52         }53      }54      "works with all array types" {55         shouldThrow<AssertionError> {56            assertSoftly {57               booleanArrayOf(true) shouldBe booleanArrayOf(false)58               intArrayOf(1) shouldBe intArrayOf(2)59               shortArrayOf(1) shouldBe shortArrayOf(2)60               floatArrayOf(1f) shouldBe floatArrayOf(2f)61               doubleArrayOf(1.0) shouldBe doubleArrayOf(2.0)62               longArrayOf(1) shouldBe longArrayOf(2)63               byteArrayOf(1) shouldBe byteArrayOf(2)64               charArrayOf('a') shouldBe charArrayOf('b')65               arrayOf("foo") shouldBe arrayOf("bar")66            }67         }.let {68            it.message should contain("1) expected:<[false]> but was:<[true]>")69            it.message should contain("2) expected:<[2]> but was:<[1]>")70            it.message should contain("3) expected:<[2]> but was:<[1]>")71            it.message should contain("4) expected:<[2.0f]> but was:<[1.0f]>")72            it.message should contain("5) expected:<[2.0]> but was:<[1.0]>")73            it.message should contain("6) expected:<[2L]> but was:<[1L]>")74            it.message should contain("7) expected:<[2]> but was:<[1]>")75            it.message should contain("8) expected:<['b']> but was:<['a']>")76            it.message should contain("""9) Element differ at index: [0]77                                                |expected:<["bar"]> but was:<["foo"]>""".trimMargin())78            it.message shouldNot contain("10) ")79         }80      }81      "works with any matcher" {82         shouldThrow<AssertionError> {83            assertSoftly {84               1 should beLessThan(0)85               "foobar" shouldNot endWith("bar")86               1 shouldBe positive() // should pass87               1.0 shouldBe negative()88               listOf(1) shouldNot containExactly(1)89               mapOf(1 to 2) should haveKey(3)90            }91         }.let {92            it.message should contain("5) Map should contain key 3")93            it.message shouldNot contain("6) ")94         }95      }96      "works with extension functions" {97         shouldThrow<AssertionError> {98            assertSoftly {99               1.shouldBeLessThan(0)100               "foobar".shouldNotEndWith("bar")101               1.shouldBePositive() // should pass102               1.0.shouldBeNegative()103            }104         }.let {105            it.message should contain("""1) 1 should be < 0""")106            it.message should contain("""2) "foobar" should not end with "bar"""")107            it.message should contain("""3) 1.0 should be < 0.0""")108            it.message shouldNot contain("4) ")109         }110      }111      "can be nested" {112         shouldThrow<AssertionError> {113            assertSoftly {114               1 shouldBe 2115               assertSoftly {116                  2 shouldBe 3117               }118            }119         }.let {120            it.message should contain("1) expected:<2> but was:<1>")121            it.message should contain("2) expected:<3> but was:<2>")122         }123      }124      "should not have any receiver context" {125         data class Person(val name: String, val age: Int)126         fun verifier(person: Person, assertion: (Person) -> Unit) {127            assertion(person)128         }129         val person = Person("foo", 0)130         verifier(person) {131            it shouldBe person132            assertSoftly {133               it shouldBe person // it being person verifies assertSoftly does not have any receiver134            }135         }136      }137      "Receiver version" - {138         "works on a receiver object" {139            shouldThrow<AssertionError> {140               assertSoftly("foo") {141                  length shouldBe 2142                  this[1] shouldBe 'o' // should pass143                  this shouldNotBe "foo"144               }145            }.let {146               it.message should contain("1) expected:<2> but was:<3>")147               it.message should contain("2) \"foo\" should not equal \"foo\"")148            }149         }150         "Returns the receiver" {151            val a = assertSoftly("foo") {152               this shouldNotBe "bar"153               shouldNotEndWith("abc")154            }155            a shouldBe "foo"156         }157         "works with 'it' receiver" {158            val a = assertSoftly("foo") {159               it shouldNotBe "bar"160            }161            a shouldBe "foo"162         }163         "works with my parameter name" {164            val a =165               assertSoftly("foo") { foo ->  // No idea why anybody would use this, but it's better to keep the verification that this works166                  foo shouldNotBe "bar"167               }168            a shouldBe "foo"169         }170      }171      "Assert softly with data classes" - {172         // Added as a verification of https://github.com/kotest/kotest/issues/1831173         "work with enum in data class" {174            val source = WithSimpleEnum(enumValue = SimpleEnum.First)175            val result = WithSimpleEnum(enumValue = SimpleEnum.Second)176            val error = shouldThrow<AssertionError> {177               assertSoftly {178                  withClue("simple strings") {179                     "a" shouldBe "b"180                     "a" shouldNotBe "b"181                  }182                  withClue("more complex with data class and enums") {183                     source shouldBe result184                     source shouldNotBe result185                  }186               }187            }188            error.message shouldContain "1) simple strings\n" +189               "expected:<\"b\"> but was:<\"a\">"190            error.message shouldContain "2) data class diff for com.sksamuel.kotest.matchers.WithSimpleEnum\n" +191               "â enumValue: more complex with data class and enums\n" +192               "expected:<Second> but was:<First>"193            error.message shouldNotContain "3) "194         }195      }196   }197})198enum class SimpleEnum {199   First,200   Second201}202data class WithSimpleEnum(val enumValue: SimpleEnum = SimpleEnum.First)...

parse.kt

Source:parse.kt

...5import io.kotest.matchers.doubles.beGreaterThan6import io.kotest.matchers.doubles.beGreaterThanOrEqualTo7import io.kotest.matchers.doubles.beLessThan8import io.kotest.matchers.doubles.beLessThanOrEqualTo9import io.kotest.matchers.doubles.beMultipleOf10import io.kotest.matchers.longs.beGreaterThan11import io.kotest.matchers.longs.beGreaterThanOrEqualTo12import io.kotest.matchers.longs.beLessThan13import io.kotest.matchers.longs.beLessThanOrEqualTo14import io.kotest.matchers.longs.beMultipleOf15import io.kotest.matchers.string.haveMaxLength16import io.kotest.matchers.string.haveMinLength17import io.kotest.matchers.string.match18import kotlinx.serialization.DeserializationStrategy19import kotlinx.serialization.KSerializer20import kotlinx.serialization.decodeFromString21import kotlinx.serialization.descriptors.SerialDescriptor22import kotlinx.serialization.descriptors.buildClassSerialDescriptor23import kotlinx.serialization.descriptors.element24import kotlinx.serialization.encoding.CompositeDecoder25import kotlinx.serialization.encoding.Decoder26import kotlinx.serialization.encoding.Encoder27import kotlinx.serialization.encoding.decodeStructure28import kotlinx.serialization.json.Json29import kotlinx.serialization.json.JsonContentPolymorphicSerializer30import kotlinx.serialization.json.JsonElement31import kotlinx.serialization.json.JsonNull32import kotlinx.serialization.json.JsonObject33import kotlinx.serialization.json.jsonObject34import kotlinx.serialization.json.jsonPrimitive35private val schemaJsonConfig = Json {36   ignoreUnknownKeys = true37   classDiscriminator = "type"38}39/**40 * Parses a subset of JSON Schema into [JsonSchemaElement] which can be used to verify a json document with41 * [shouldMatchSchema]42 */43@ExperimentalKotest44fun parseSchema(jsonSchema: String): JsonSchema =45   JsonSchema(root = schemaJsonConfig.decodeFromString(SchemaDeserializer, jsonSchema))46@ExperimentalKotest47internal object SchemaDeserializer : JsonContentPolymorphicSerializer<JsonSchemaElement>(JsonSchemaElement::class) {48   override fun selectDeserializer(element: JsonElement): DeserializationStrategy<out JsonSchemaElement> {49      return when (val type = element.jsonObject.get("type")?.jsonPrimitive?.content) {50         "array" -> JsonSchema.JsonArray.serializer()51         "object" -> JsonSchema.JsonObject.serializer()52         "string" -> JsonSchemaStringSerializer53         "integer" -> JsonSchemaIntegerSerializer54         "number" -> JsonSchemaNumberSerializer55         "boolean" -> JsonSchema.JsonBoolean.serializer()56         "null" -> JsonSchema.Null.serializer()57         else -> error("Unknown type: $type")58      }59   }60}61private infix fun <T> Matcher<T>?.and(other: Matcher<T>) =62   if (this != null) this and other else other63@ExperimentalKotest64internal object JsonSchemaStringSerializer : KSerializer<JsonSchema.JsonString> {65   override fun deserialize(decoder: Decoder): JsonSchema.JsonString =66      decoder.decodeStructure(descriptor) {67         var matcher: Matcher<String>? = null68         while (true) {69            when (val index = decodeElementIndex(descriptor)) {70               1 -> matcher = matcher and haveMinLength(decodeIntElement(descriptor, index))71               2 -> matcher = matcher and haveMaxLength(decodeIntElement(descriptor, index))72               3 -> matcher = matcher and match(decodeStringElement(descriptor, index).toRegex())73               // Formats: https://json-schema.org/understanding-json-schema/reference/string.html#built-in-formats74               // TODO: Map formats to matchers75               4 -> println("Formats are currently not supported")76               CompositeDecoder.DECODE_DONE -> break77            }78         }79         JsonSchema.JsonString(matcher)80      }81   override val descriptor = buildClassSerialDescriptor("JsonSchema.JsonString") {82      element<String>("type")83      element<Int>("minLength", isOptional = true)84      element<Int>("maxLength", isOptional = true)85      element<String>("pattern", isOptional = true)86      element<String>("format", isOptional = true)87   }88   override fun serialize(encoder: Encoder, value: JsonSchema.JsonString) {89      TODO("Serialization of JsonSchema not supported atm")90   }91}92@ExperimentalKotest93internal object JsonSchemaIntegerSerializer : KSerializer<JsonSchema.JsonInteger> {94   override fun deserialize(decoder: Decoder): JsonSchema.JsonInteger =95      decoder.decodeStructure(descriptor) {96         var matcher: Matcher<Long>? = null97         while (true) {98            when (val index = decodeElementIndex(descriptor)) {99               1 -> matcher = matcher and beMultipleOf(decodeLongElement(descriptor, index))100               2 -> matcher = matcher and beGreaterThanOrEqualTo(decodeLongElement(descriptor, index))101               3 -> matcher = matcher and beGreaterThan(decodeLongElement(descriptor, index))102               4 -> matcher = matcher and beLessThanOrEqualTo(decodeLongElement(descriptor, index))103               5 -> matcher = matcher and beLessThan(decodeLongElement(descriptor, index))104               CompositeDecoder.DECODE_DONE -> break105            }106         }107         JsonSchema.JsonInteger(matcher)108      }109   override val descriptor = buildClassSerialDescriptor("JsonSchema.JsonInteger") {110      element<String>("type")111      element<Long>("multipleOf", isOptional = true)112      element<Long>("minimum", isOptional = true)113      element<Long>("exclusiveMinimum", isOptional = true)114      element<Long>("maximum", isOptional = true)115      element<Long>("exclusiveMaximum", isOptional = true)116   }117   override fun serialize(encoder: Encoder, value: JsonSchema.JsonInteger) {118      TODO("Not yet implemented")119   }120}121@ExperimentalKotest122internal object JsonSchemaNumberSerializer : KSerializer<JsonSchema.JsonDecimal> {123   override fun deserialize(decoder: Decoder): JsonSchema.JsonDecimal =124      decoder.decodeStructure(descriptor) {125         var matcher: Matcher<Double>? = null126         while (true) {127            when (val index = decodeElementIndex(descriptor)) {128               1 -> matcher = matcher and beMultipleOf(decodeDoubleElement(descriptor, index))129               2 -> matcher = matcher and beGreaterThanOrEqualTo(decodeDoubleElement(descriptor, index))130               3 -> matcher = matcher and beGreaterThan(decodeDoubleElement(descriptor, index))131               4 -> matcher = matcher and beLessThanOrEqualTo(decodeDoubleElement(descriptor, index))132               5 -> matcher = matcher and beLessThan(decodeDoubleElement(descriptor, index))133               CompositeDecoder.DECODE_DONE -> break134            }135         }136         JsonSchema.JsonDecimal(matcher)137      }138   override val descriptor = buildClassSerialDescriptor("JsonSchema.JsonDecimal") {139      element<String>("type")140      element<Double>("multipleOf", isOptional = true)141      element<Double>("minimum", isOptional = true)142      element<Double>("exclusiveMinimum", isOptional = true)...

RandomSpec.kt

Source:RandomSpec.kt

...20            "Single weight should return 0" {21                Random(1).nextBin(0.1) shouldBe 022                Random(1).nextBin(1) shouldBe 023            }24            "Multiple weights should return correctly" {25                val random = Random(1)26                val bins = mutableMapOf(27                    0 to 0,28                    1 to 0,29                    2 to 0,30                    3 to 0,31                    4 to 0,32                )33                val weights = doubleArrayOf(1.0, 3.0, 2.0, 0.0, 5.0)34                val weightsSum = weights.sum()35                val rounds = 10000036                repeat(rounds) {37                    val bin = random.nextBin(weights)38                    bins[bin] = bins[bin]!! + 139                }40                println(bins)41                val roundsDivSum = rounds / weightsSum42                withClue("Bin 0") {43                    bins[0]!!.toDouble() shouldBe (roundsDivSum * weights[0]).plusOrMinus(1.percent)44                }45                withClue("Bin 1") {46                    bins[1]!!.toDouble() shouldBe (roundsDivSum * weights[1]).plusOrMinus(1.percent)47                }48                withClue("Bin 2") {49                    bins[2]!!.toDouble() shouldBe (roundsDivSum * weights[2]).plusOrMinus(1.percent)50                }51                withClue("Bin 3") {52                    bins[3]!!.toDouble() shouldBe (roundsDivSum * weights[3]).plusOrMinus(1.percent)53                }54                withClue("Bin 4") {55                    bins[4]!!.toDouble() shouldBe (roundsDivSum * weights[4]).plusOrMinus(1.percent)56                }57            }58        }59        "nextBin() - pairs of weight to value" - {60            "Multiple weights should return correctly" {61                val random = Random(1)62                data class V(val v: Int)63                val v1 = V(1)64                val v2 = V(2)65                val v3 = V(3)66                val v4 = V(4)67                val v5 = V(5)68                val bins = mutableMapOf(69                    v1 to 0,70                    v2 to 0,71                    v3 to 0,72                    v4 to 0,73                    v5 to 0,74                )...

cab-invoiceChecker.kt

Source:cab-invoiceChecker.kt

1import io.kotest.core.spec.style.StringSpec2//import io.kotest.matchers.booleans.shouldBeFalse3//import io.kotest.matchers.booleans.shouldBeTrue4//import io.kotest.matchers.doubles.shouldBeExactly5import io.kotest.matchers.shouldBe6class cabInvoiceTest : StringSpec() {7    init {8        "If car travels for '1.0' km in '10' minutes"{9           // var invoice = carInvoiceTest()10            //var actualFare : Double = invoice.fairCalculate(1.0,10)11             //actualFare shouldBeExactly 1.012            cabInvoiceCalculate().fairCalculate(1.0,10) shouldBe 20.013        }14        "If car travels for '0.5' km in '5' minutes"{15            cabInvoiceCalculate().fairCalculate(0.5,5) shouldBe 10.016        }17        "If car travels for '0.0' km in '10' minutes"{18            cabInvoiceCalculate().fairCalculate(0.0,10) shouldBe 10.019        }20        "'x' person travels for total '10.0' km in '10' minutes "{21//            cabInvoiceCalculate().fair(Ride(0.5,5)) shouldBe 10.022            cabInvoiceCalculate().fair(listOf(Ride(0.5,5)) ) shouldBe 10.023        }24        "'3' times 'x' person travels for total '1.5' km in '25' minutes"{ // fare of multiple rides is now being calculated25            val rideOne = Ride(0.5,5)26            val rideTwo = Ride(1.0,10)27            val rideThree = Ride(0.0,10)28            cabInvoiceCalculate().fair(listOf(rideOne,rideTwo,rideThree)) shouldBe 40.029        }30        "After multiple stops total fare of multiple rides"{31            val rideOne = Ride(0.5,5)32            val rideTwo = Ride(1.0,10)33            val rideThree = Ride(0.0,10)34            cabInvoiceCalculate().fair(listOf(rideOne,rideTwo,rideThree)) shouldBe 40.035        }36        "No rides per month"{37            cabInvoiceCalculate().fair(listOf()) shouldBe 0.038        }39//        "when Getting Nullable Rides"{40//            //var totalRides = listOf(Ride(null,null))41//            cabInvoiceCalculate().fair(listOf(Ride(null,null))) shouldBe null42//        }43    }44}45class cabInvoiceDetailedTest : StringSpec() {46    init{47        "calculating total fair,Number of rides taken & Average cost per ride (per person) "{48            val rideOne = Ride(0.5,5)49            val rideTwo = Ride(1.0,10)50            val rideThree = Ride(0.0,10)51            var totalFare = cabInvoiceCalculate().fair(listOf(rideOne,rideTwo,rideThree))52            totalFare shouldBe 40.053            var totalRides = cabInvoiceCalculate().totalRides(listOf(rideOne,rideTwo,rideThree))54            totalRides shouldBe 355            var averageCostPerRide = totalFare / totalRides56            averageCostPerRide shouldBe 13.33333333333333457        }58    }59}60class cabInvoiceDetailedTest1 : StringSpec() {61    init{62        "calculating total fair,Number of rides taken & Average cost per ride (per person) "{63            val rideOne = Ride(0.5,5)64            val rideTwo = Ride(1.0,10)65            val rideThree = Ride(0.0,10)66            var data = cabInvoiceCalculate().totalInvoiceData(listOf(rideOne,rideTwo,rideThree))67            data.totalFair shouldBe 40.068            data.totalRides shouldBe 369            data.averageCost shouldBe 13.33333333333333470//            var totalFare = cabInvoiceCalculate().fair(listOf(rideOne,rideTwo,rideThree))71//            totalFare shouldBe 40.072//            var totalRides = cabInvoiceCalculate().totalRides(listOf(rideOne,rideTwo,rideThree))73//            totalRides shouldBe 374//            var averageCostPerRide = totalFare / totalRides75//            averageCostPerRide shouldBe 13.33333333333333476        }77    }78}...

SchemaWithMatcherTest.kt

Source:SchemaWithMatcherTest.kt

...3import io.kotest.core.spec.style.FunSpec4import io.kotest.matchers.and5import io.kotest.matchers.doubles.beGreaterThanOrEqualTo6import io.kotest.matchers.doubles.beLessThanOrEqualTo7import io.kotest.matchers.doubles.beMultipleOf8import io.kotest.matchers.ints.beEven9import io.kotest.matchers.ints.beInRange10import io.kotest.matchers.longs.beInRange11import io.kotest.matchers.shouldBe12import io.kotest.matchers.string.haveMaxLength13import io.kotest.matchers.string.haveMinLength14import io.kotest.matchers.types.beInstanceOf15class SchemaWithMatcherTest : FunSpec(16   {17      test("Even numbers") {18         val evenNumbers = jsonSchema { number { beMultipleOf(2.0) } }19         "2" shouldMatchSchema evenNumbers20         shouldFail { "3" shouldMatchSchema evenNumbers }21            .message shouldBe """22               $ => 3.0 should be multiple of 2.023            """.trimIndent()24      }25      context("smoke") {26         val schema = jsonSchema {27            array {28               obj {29                  withProperty("name") { string { haveMinLength(3) and haveMaxLength(20) } }30                  withProperty("age") { number { beGreaterThanOrEqualTo(0.0) and beLessThanOrEqualTo(120.0) } }31               }32            }...

KalkulatorTest.kt

Source:KalkulatorTest.kt

...13            "Simple binary expression" to Case("45 / 3", 15.0),14            "Simple binary expression with precedence" to Case("7 + 6 * 52 + 3", 322.0),15            "Parenthesis with binary expressions" to Case("52 / (7 + 6)  + 3", 7.0),16            "Unnecessary parenthesis " to Case("52 / (7 + ((6)) )  + 3", 7.0),17            "Multiple unary expressions" to Case("2 + - - - 5", -3.0),18            "Mixed expressions" to Case("24 / 2 * 3 + -(1/5) + ( 7 * (4 - (-2)))", 77.8),19            ) { (expr, result) ->20            kalkulator.parseAndEvaluate(expr) shouldBeExactly result21        }22    }23})...

Multiple.kt

Source:Multiple.kt

...7/**8 * Beware, has no tolerance handling so will fail for numbers where the orders of magnitude vary greatly.9 */10@ExperimentalKotest11infix fun Double?.shouldBeMultipleOf(other: Double) = this should beMultipleOf(other)12/**13 * Beware, has no tolerance handling so will fail for numbers where the orders of magnitude vary greatly.14 */15@ExperimentalKotest16fun beMultipleOf(other: Double) = Matcher<Double?> { value ->17   MatcherResult(18      value != null && value % other == 0.0,19      { "${value} should be multiple of ${other}" },20      { "${value} should not be multiple of ${other}" }21   )22}...

Multiple

Using AI Code Generation

1import io.kotest.matchers.doubles.*2import io.kotest.matchers.doubles.shouldBeGreaterThanOrEqual3import io.kotest.matchers.doubles.shouldBeLessThanOrEqual4import io.kotest.matchers.doubles.shouldBeZero5import io.kotest.matchers.doubles.shouldBeNegativeInfinity6import io.kotest.matchers.doubles.shouldBePositiveInfinity7import io.kotest.matchers.doubles.shouldBeNaN8import io.kotest.matchers.doubles.shouldBeFinite9import io.kotest.matchers.doubles.shouldBeInfinite10import io.kotest.matchers.doubles.shouldBeNormal11import io.kotest.matchers.doubles.shouldBeSubnormal12import io.kotest.matchers.doubles.shouldBeExactly13import io.kotest.matchers.doubles.shouldBeExactlyOne14import io.kotest.matchers.doubles.shouldBeExactlyZero15import io.kotest.matchers.doubles.shouldBeExactlyNegativeZero16import io.kotest.matchers.doubles.shouldBeExactlyPositiveZero17import io.kotest.matchers.doubles.shouldBeExactlyDouble18import io.kotest.matchers.doubles.shouldBeExactlyFloat19import io.kotest.matchers.doubles.shouldBeExactlyLong20import io.kotest.matchers.doubles.shouldBeExactlyInt21import io.kotest.matchers.doubles.shouldBeExactlyShort22import io.kotest.matchers.doubles.shouldBeExactlyByte23import io.kotest.matchers.doubles.shouldBeExactlyUByte24import io.kotest.matchers.doubles.shouldBeExactlyUShort25import io.kotest.matchers.doubles.shouldBeExactlyUInt26import io.kotest.matchers.doubles.shouldBeExactlyULong27import io.kotest.matchers.doubles.shouldBeExactlyChar28import io.kotest.matchers.doubles.shouldBeExactlyBoolean29import io.kotest.matchers.doubles.shouldBeExactlyString30import io.kotest.matchers.doubles.shouldBeExactlyNumber31import io.kotest.matchers.doubles.shouldBeExactlyAny32import io.kotest.matchers.doubles.shouldBeExactlyNothing33import io.kotest.matchers.doubles.shouldBeExactlyUnit34import io.kotest.matchers.doubles.shouldBeExactlyNothing35import io.kotest.matchers.doubles.shouldBeExactlyNothing36import io.kotest.matchers.doubles.should

Multiple

Using AI Code Generation

1assertThat(10.0).isLessThan(20.0)2assertThat(10.0).isGreaterThan(5.0)3assertThat(10.0).isLessThanOrEqualTo(10.0)4assertThat(10.0).isGreaterThanOrEqualTo(10.0)5assertThat(10.0).isBetween(5.0, 20.0)6assertThat(10.0).isNotBetween(5.0, 20.0)7assertThat(10.0).isBetween(5.0, 10.0)8assertThat(10.0).isNotBetween(5.0, 10.0)9assertThat(10.0).isBetween(10.0, 20.0)10assertThat(10.0).isNotBetween(10.0, 20.0)11assertThat(10.0).isBetween(10.0, 10.0)12assertThat(10.0).isNotBetween(10.0, 10.0)13assertThat(10.0).isBetween(5.0, 20.0, true, true)14assertThat(10.0).isNotBetween(5.0, 20.0, true, true)15assertThat(10.0).isBetween(5.0, 10.0, true, true)16assertThat(10.0).isNotBetween(5.0, 10.0, true, true)17assertThat(10.0).isBetween(10.0, 20.0, true, true)18assertThat(10.0).isNotBetween(10.0, 20.0, true, true)19assertThat(10.0).isBetween(10.0, 10.0, true, true)20assertThat(10.0).isNotBetween(10.0, 10.0, true, true)21assertThat(10.0).isBetween(5.0, 20.0, false, false)22assertThat(10.0).isNotBetween(5.0, 20.0, false, false)23assertThat(10.0).isBetween(5.0, 10.0, false, false)24assertThat(10.0).isNotBetween(5.0, 10.0, false, false)

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