How to use beMultipleOf method of io.kotest.matchers.doubles.Multiple class

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

parse.kt

Source: parse.kt Github

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...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)...

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SchemaWithMatcherTest.kt

Source: SchemaWithMatcherTest.kt Github

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...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 }...

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Multiple.kt

Source: Multiple.kt Github

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...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}...

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beMultipleOf

Using AI Code Generation

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1result should beMultipleOf(1.0)2result should beMultipleOf(1.0)3result should beMultipleOf(1.0)4result should beMultipleOf(1.0)5result should beMultipleOf(1.0)6result should beMultipleOf(1.0)7result should beMultipleOf(1.0)8result should beMultipleOf(1.0)9result should beMultipleOf(1.0)10result should beMultipleOf(1.0)11result should beMultipleOf(1.0)12result should beMultipleOf(1.0)13result should beMultipleOf(1.0)

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beMultipleOf

Using AI Code Generation

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1import io.kotest.matchers.doubles.beMultipleOf2import io.kotest.matchers.doubles.beLessThan3import io.kotest.matchers.doubles.beLessThanOrEqual4import io.kotest.matchers.doubles.beGreaterThan5import io.kotest.matchers.doubles.beGreaterThanOrEqual6import io.kotest.matchers.doubles.beBetween7import io.kotest.matchers.doubles.beCloseTo8import io.kotest.matchers.doubles.bePositive91.0 should bePositive()

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beMultipleOf

Using AI Code Generation

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1fun `should be multiple of 2`(){2result.shouldBeMultipleOf(2.0)3}4fun `should be multiple of 2`(){5result.shouldBeMultipleOf(2.0)6}7fun `should be multiple of 2`(){8result.shouldBeMultipleOf(2.0)9}10fun `should be multiple of 2`(){11result.shouldBeMultipleOf(2.0)12}13fun `should be multiple of 2`(){14result.shouldBeMultipleOf(2.0)15}16fun `should be multiple of 2`(){17result.shouldBeMultipleOf(2.0)18}19fun `should be multiple of 2`(){20result.shouldBeMultipleOf(2.0)21}22fun `should be multiple of 2`(){23result.shouldBeMultipleOf(2.0)24}25fun `should be multiple of 2`(){26result.shouldBeMultipleOf(2.0)27}28fun `should be multiple of 2`(){

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