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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

...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)...

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            }...

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}...

beMultipleOf

Using AI Code Generation

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)

beMultipleOf

Using AI Code Generation

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()

beMultipleOf

Using AI Code Generation

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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