How to use filter class of io.kotest.property.arbitrary package

Best Kotest code snippet using io.kotest.property.arbitrary.filter

IorModuleTest.kt

Source:IorModuleTest.kt Github

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...18import io.kotest.property.arbitrary.arbitrary19import io.kotest.property.arbitrary.az20import io.kotest.property.arbitrary.boolean21import io.kotest.property.arbitrary.enum22import io.kotest.property.arbitrary.filter23import io.kotest.property.arbitrary.int24import io.kotest.property.arbitrary.orNull25import io.kotest.property.arbitrary.pair26import io.kotest.property.arbitrary.string27import io.kotest.property.checkAll28class IorModuleTest : FunSpec() {29 init {30 context("serialization/deserialization") {31 test("should round-trip on mandatory types") {32 checkAll(arbTestClass) { it.shouldRoundTrip(mapper) }33 }34 test("should serialize in the expected format") {35 checkAll(arbTestClassJsonString) { it.shouldRoundTripOtherWay<TestClass>(mapper) }36 }37 test("should round-trip nullable types") {38 checkAll(Arb.ior(arbFoo.orNull(), arbBar.orNull())) { ior: Ior<Foo?, Bar?> ->39 ior.shouldRoundTrip(mapper)40 }41 }42 test("should round-trip nested ior types") {43 checkAll(44 Arb.ior(Arb.ior(arbFoo, Arb.int()).orNull(), Arb.ior(Arb.string(), arbBar.orNull()))45 ) { ior: Ior<Ior<Foo, Int>?, Ior<String, Bar?>> -> ior.shouldRoundTrip(mapper) }46 }47 test("should serialize with configurable left / right field name") {48 checkAll(49 Arb.pair(Arb.string(10, Codepoint.az()), Arb.string(10, Codepoint.az())).filter {50 it.first != it.second51 }52 ) { (leftFieldName, rightFieldName) ->53 val mapper =54 ObjectMapper()55 .registerKotlinModule()56 .registerArrowModule(iorModuleConfig = IorModuleConfig(leftFieldName, rightFieldName))57 mapper.writeValueAsString(5.leftIor()) shouldBe """{"$leftFieldName":5}"""58 mapper.writeValueAsString("hello".rightIor()) shouldBe """{"$rightFieldName":"hello"}"""59 mapper.writeValueAsString(Pair(5, "hello").bothIor()) shouldBe60 """{"$leftFieldName":5,"$rightFieldName":"hello"}"""61 }62 }63 test("should round-trip with configurable left / right field name") {64 checkAll(65 Arb.pair(66 Arb.string(10, Codepoint.az()),67 Arb.string(10, Codepoint.az()),68 )69 .filter { it.first != it.second },70 arbTestClass71 ) { (leftFieldName, rightFieldName), testClass ->72 val mapper =73 ObjectMapper()74 .registerKotlinModule()75 .registerArrowModule(76 eitherModuleConfig = EitherModuleConfig(leftFieldName, rightFieldName)77 )78 testClass.shouldRoundTrip(mapper)79 }80 }81 test("should round-trip with wildcard types") {82 checkAll(Arb.ior(Arb.int(1..10), Arb.string(10, Codepoint.az()))) { original: Ior<*, *> ->83 val mapper = ObjectMapper().registerKotlinModule().registerArrowModule()...

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ValidatedModuleTest.kt

Source:ValidatedModuleTest.kt Github

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...16import io.kotest.property.arbitrary.alphanumeric17import io.kotest.property.arbitrary.arbitrary18import io.kotest.property.arbitrary.az19import io.kotest.property.arbitrary.boolean20import io.kotest.property.arbitrary.filter21import io.kotest.property.arbitrary.int22import io.kotest.property.arbitrary.orNull23import io.kotest.property.arbitrary.pair24import io.kotest.property.arbitrary.string25import io.kotest.property.checkAll26class ValidatedModuleTest : FunSpec() {27 init {28 context("json serialization / deserialization") {29 test("should round-trip") { checkAll(arbTestClass) { it.shouldRoundTrip(mapper) } }30 test("should round-trip nullable types") {31 checkAll(Arb.validated(arbFoo.orNull(), arbBar.orNull())) { validated: Validated<Foo?, Bar?>32 ->33 validated.shouldRoundTrip(mapper)34 }35 }36 test("should round-trip other way") {37 checkAll(arbTestClassJsonString) { it.shouldRoundTripOtherWay<TestClass>(mapper) }38 }39 test("should round-trip nested validated types") {40 checkAll(Arb.validated(Arb.int(), Arb.validated(Arb.int(), Arb.string()).orNull())) {41 validated: Validated<Int, Validated<Int, String>?> ->42 validated.shouldRoundTrip(mapper)43 }44 }45 test("should serialize with configurable invalid / valid field name") {46 checkAll(47 Arb.pair(Arb.string(10, Codepoint.az()), Arb.string(10, Codepoint.az())).filter {48 it.first != it.second49 }50 ) { (invalidFieldName, validFieldName) ->51 val mapper =52 ObjectMapper()53 .registerKotlinModule()54 .registerArrowModule(55 validatedModuleConfig = ValidatedModuleConfig(invalidFieldName, validFieldName)56 )57 mapper.writeValueAsString(5.invalid()) shouldBe """{"$invalidFieldName":5}"""58 mapper.writeValueAsString("hello".valid()) shouldBe """{"$validFieldName":"hello"}"""59 }60 }61 test("should round-trip with configurable invalid / valid field name") {62 checkAll(63 Arb.pair(Arb.string(10, Codepoint.az()), Arb.string(10, Codepoint.az())).filter {64 it.first != it.second65 },66 arbTestClass67 ) { (invalidFieldName, validFieldName), testClass ->68 val mapper =69 ObjectMapper()70 .registerKotlinModule()71 .registerArrowModule(EitherModuleConfig(invalidFieldName, validFieldName))72 testClass.shouldRoundTrip(mapper)73 }74 }75 test("should round-trip with wildcard types") {76 checkAll(Arb.validated(Arb.int(1..10), Arb.string(10, Codepoint.az()))) {77 original: Validated<*, *> ->...

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EitherModuleTest.kt

Source:EitherModuleTest.kt Github

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...16import io.kotest.property.arbitrary.alphanumeric17import io.kotest.property.arbitrary.arbitrary18import io.kotest.property.arbitrary.az19import io.kotest.property.arbitrary.boolean20import io.kotest.property.arbitrary.filter21import io.kotest.property.arbitrary.int22import io.kotest.property.arbitrary.orNull23import io.kotest.property.arbitrary.pair24import io.kotest.property.arbitrary.string25import io.kotest.property.checkAll26class EitherModuleTest : FunSpec() {27 init {28 context("either serialization/deserialization") {29 test("should round-trip on mandatory types") {30 checkAll(arbTestClass) { it.shouldRoundTrip(mapper) }31 }32 test("should serialize in the expected format") {33 checkAll(arbTestClassJsonString) { it.shouldRoundTripOtherWay<TestClass>(mapper) }34 }35 test("should round-trip nullable types") {36 checkAll(Arb.either(arbFoo.orNull(), arbBar.orNull())) { either: Either<Foo?, Bar?> ->37 either.shouldRoundTrip(mapper)38 }39 }40 test("should round-trip nested either types") {41 checkAll(42 Arb.either(43 Arb.either(arbFoo, Arb.int()).orNull(),44 Arb.either(Arb.string(), arbBar.orNull())45 )46 ) { either: Either<Either<Foo, Int>?, Either<String, Bar?>> ->47 either.shouldRoundTrip(mapper)48 }49 }50 test("should serialize with configurable left / right field name") {51 checkAll(52 Arb.pair(Arb.string(10, Codepoint.az()), Arb.string(10, Codepoint.az())).filter {53 it.first != it.second54 }55 ) { (leftFieldName, rightFieldName) ->56 val mapper =57 ObjectMapper()58 .registerKotlinModule()59 .registerArrowModule(EitherModuleConfig(leftFieldName, rightFieldName))60 mapper.writeValueAsString(5.left()) shouldBe """{"$leftFieldName":5}"""61 mapper.writeValueAsString("hello".right()) shouldBe """{"$rightFieldName":"hello"}"""62 }63 }64 test("should round-trip with configurable left / right field name") {65 checkAll(66 Arb.pair(67 Arb.string(10, Codepoint.az()),68 Arb.string(10, Codepoint.az()),69 )70 .filter { it.first != it.second },71 arbTestClass72 ) { (leftFieldName, rightFieldName), testClass ->73 val mapper =74 ObjectMapper()75 .registerKotlinModule()76 .registerArrowModule(77 eitherModuleConfig = EitherModuleConfig(leftFieldName, rightFieldName)78 )79 testClass.shouldRoundTrip(mapper)80 }81 }82 test("should round-trip on wildcard types") {83 val mapper = ObjectMapper().registerArrowModule()84 checkAll(Arb.either(Arb.int(1..10), Arb.string(5))) { original: Either<*, *> ->...

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SnowflakeTest.kt

Source:SnowflakeTest.kt Github

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...7import io.kotest.matchers.string.shouldEndWith8import io.kotest.property.Arb9import io.kotest.property.Exhaustive10import io.kotest.property.arbitrary.arbitrary11import io.kotest.property.arbitrary.filter12import io.kotest.property.arbitrary.long13import io.kotest.property.checkAll14import io.kotest.property.exhaustive.azstring15import org.tesserakt.diskordin.core.data.Snowflake.ConstructionError.LessThenDiscordEpoch16import org.tesserakt.diskordin.core.data.Snowflake.ConstructionError.NotNumber17import kotlin.random.nextLong18private const val MIN_SNOWFLAKE = 4194305L19@ExperimentalUnsignedTypes20class SnowflakeTest : FunSpec() {21 private val snowflakes = arbitrary { it.random.nextLong(MIN_SNOWFLAKE..Long.MAX_VALUE) }22 init {23 test("Snowflake.toString should return number in string") {24 checkAll(snowflakes) {25 it.asSnowflake().toString() shouldBe "$it"26 }27 }28 context("Non-safe converts should throw errors comparing their rules") {29 test("String, that hasn't digits") {30 checkAll(Exhaustive.azstring(1..30)) {31 shouldThrow<IllegalArgumentException> {32 it.asSnowflake()33 }.message shouldEndWith "cannot be represented as Snowflake"34 }35 }36 test("Number, that less then 0") {37 checkAll(Arb.long(max = 0).filter { it < 0 }) {38 shouldThrow<IllegalArgumentException> {39 it.asSnowflake()40 }.message shouldBe "id must be greater than 0"41 }42 }43 test("Number, that less then $MIN_SNOWFLAKE") {44 checkAll(arbitrary { it.random.nextLong(MIN_SNOWFLAKE) }) {45 shouldThrow<IllegalArgumentException> {46 it.asSnowflake()47 }.message shouldBe "id must be greater than ${MIN_SNOWFLAKE - 1}"48 }49 }50 }51 context("Safe converts should wrap error in data-type") {...

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ArticleInformationTest.kt

Source:ArticleInformationTest.kt Github

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...7import io.kotest.core.spec.style.FunSpec8import io.kotest.core.spec.style.ShouldSpec9import io.kotest.matchers.shouldBe10import io.kotest.property.Arb11import io.kotest.property.arbitrary.filter12import io.kotest.property.arbitrary.list13import io.kotest.property.arbitrary.single14import io.kotest.property.arbitrary.string15import io.kotest.property.forAll16internal class ArticleOfTest : ShouldSpec({17 should("fail when title is empty") {18 shouldThrow<IllegalArgumentException> {19 articleOf(20 title = "",21 markdown = ""22 )23 }24 }25 should("fail when markdown is empty") {26 shouldThrow<IllegalArgumentException> {27 articleOf(28 title = "Test",29 markdown = ""30 )31 }32 }33 should("add corresponding and valid tags as list to the final article") {34 forAll(35 Arb.string(minSize = 1).filter { it.isNotBlank() },36 Arb.string(minSize = 1).filter { it.isNotBlank() },37 Arb.list(Arb.string())38 ) { title, desc, tagList ->39 articleOf(40 title,41 desc,42 tagList43 ) == ArticleInformation(44 title,45 desc,46 tagList.filter { it.isNotBlank() })47 }48 }49})50internal class ArticleInformationTest : FunSpec({51 context("The ArticleInformation") {52 test("fails validation when title is empty") {53 val article =54 ArticleInformation("", Arb.string().single(), emptyList())55 val exception = shouldThrow<IllegalArgumentException> { article.requireValidTitle() }56 exception.message shouldBe "Title cannot be blank or empty for a new article"57 }58 test("fail validation when body is empty") {59 val article =60 ArticleInformation(61 Arb.string(minSize = 1).filter { it.isNotBlank() }.single(), "", emptyList()62 )63 val exception = shouldThrow<IllegalArgumentException> { article.requireValidBody() }64 exception.message shouldBe "Creation of article requires a body in markdown text"65 }66 }67})...

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Arb.kt

Source:Arb.kt Github

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...3import io.kotest.property.Exhaustive4import io.kotest.property.arbitrary.arbitrary5import io.kotest.property.arbitrary.byte6import io.kotest.property.arbitrary.byteArrays7import io.kotest.property.arbitrary.filter8import io.kotest.property.arbitrary.int9import io.kotest.property.arbitrary.merge10import kotlin.random.nextUInt11import kotlin.random.nextULong12operator fun <A> Arb<A>.plus(other: Arb<A>) =13 merge(other)14operator fun <A> Arb<A>.minus(other: Exhaustive<A>) =15 filter { it !in other.values }16operator fun <V : Comparable<V>> Arb<V>.minus(range: ClosedRange<V>) =17 filter { it !in range }18fun Arb.Companion.byteArrays(length: Int) =19 byteArrays(length..length)20fun Arb.Companion.byteArrays(length: IntRange) =21 Arb.byteArrays(Arb.int(length), Arb.byte())22fun Arb.Companion.uint(range: UIntRange = UInt.MIN_VALUE..UInt.MAX_VALUE) = arbitrary(listOf(range.first, range.last)) {23 it.random.nextUInt(range)24}25fun Arb.Companion.ulong() = arbitrary(listOf(ULong.MIN_VALUE, ULong.MAX_VALUE)) {26 it.random.nextULong()27}28inline fun <reified T> Arb.Companion.arrayOf(value: Arb<T>, length: IntRange): Arb<Array<T>> = arbitrary { rs ->29 Array(rs.random.nextInt(length.first, length.last)) {30 value.sample(rs).value31 }...

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LeapYearTest.kt

Source:LeapYearTest.kt Github

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1import io.kotest.core.spec.style.ExpectSpec2import io.kotest.matchers.shouldBe3import io.kotest.property.Arb4import io.kotest.property.arbitrary.filter5import io.kotest.property.arbitrary.filterNot6import io.kotest.property.arbitrary.int7import io.kotest.property.checkAll8class LeapYearTest : ExpectSpec({9 context("A year is not a leap year") {10 expect("if not divisible by 4") {11 checkAll(Arb.int().filterNot { it isDivisibleBy 4 }) { year ->12 isLeapYear(year) shouldBe false13 }14 }15 expect("if divisible by 100 but not by 400") {16 checkAll(Arb.int().filter { (it isDivisibleBy 100) && !(it isDivisibleBy 400) }) { year ->17 isLeapYear(year) shouldBe false18 }19 }20 }21 context("A year is a leap year") {22 expect("if divisible by 4 but not by 100") {23 checkAll(Arb.int().filter { (it isDivisibleBy 4) && !(it isDivisibleBy 100) }) { year ->24 isLeapYear(year) shouldBe true25 }26 }27 expect("if divisible by 400") {28 checkAll(Arb.int().filter { it isDivisibleBy 400 }) { year ->29 isLeapYear(year) shouldBe true30 }31 }32 }33})...

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PagingState.kt

Source:PagingState.kt Github

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1package uk.co.appsplus.bootstrap.testing.arbs.ext2import io.kotest.property.Arb3import io.kotest.property.arbitrary.enum4import io.kotest.property.arbitrary.filterNot5import io.kotest.property.arbitrary.of6import uk.co.appsplus.bootstrap.ui.pagination.PagingState7fun Arb.Companion.loadingState(8 onlyStates: List<PagingState>? = null,9 removedStates: List<PagingState> = emptyList()10): Arb<PagingState> {11 return onlyStates?.let {12 Arb.of(it)13 } ?: Arb.enum<PagingState>()14 .filterNot { it in removedStates }15}...

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filter

Using AI Code Generation

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1 property("filter") {2 Arb.filter(Arb.int(1..10)) { it % 2 == 0 }.take(100).forEach {3 }4 }5 property("combine") {6 val a = Arb.int(1..10)7 val b = Arb.int(1..10)8 val c = Arb.combine(a, b) { a, b -> a + b }9 c.take(100).forEach {10 it.shouldBeLessThanOrEqual(20)11 }12 }13 property("create") {14 val a = Arb.create { it.random.nextInt(1, 10) }15 a.take(100).forEach {16 it.shouldBeLessThanOrEqual(10)17 }18 }19 property("create edge cases") {20 val a = Arb.createEdgecases(1, 2, 3, 4, 5)21 a.take(100).forEach {22 it.shouldBeOneOf(1, 2, 3, 4, 5)23 }24 }25 property("create edge cases") {26 val a = Arb.createEdgecases(1, 2, 3, 4, 5)27 a.take(100).forEach {28 it.shouldBeOneOf(1, 2, 3, 4, 5)29 }30 }31 property("create edge cases") {32 val a = Arb.createEdgecases(1, 2, 3, 4, 5)33 a.take(100).forEach {34 it.shouldBeOneOf(1, 2, 3, 4, 5)35 }36 }37 property("create edge cases") {38 val a = Arb.createEdgecases(1, 2, 3, 4, 5)

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filter

Using AI Code Generation

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1 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })2 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })3 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })4 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })5 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })6 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })7 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })8 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })9 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })10 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })11 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })12 val smallInts = Arb.filter(Arb.int(), { it > 0 && it < 100 })13 val smallInts = Arb.filter(Arb.int(), { it > 0 &&

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filter

Using AI Code Generation

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1val filter = Filter { it > 4 }2val intGen = Gen.int().filter(filter)3val intGen = Gen.int().filter { it > 4 }4val filter = Filter { it > 4 }5val intGen = Gen.int().filter(filter)6val intGen = Gen.int().filter { it > 4 }7val filter = Filter { it > 4 }8val intGen = Gen.int().filter(filter)9val intGen = Gen.int().filter { it > 4 }10val filter = Filter { it > 4 }11val intGen = Gen.int().filter(filter)12val intGen = Gen.int().filter { it > 4 }13val filter = Filter { it > 4 }14val intGen = Gen.int().filter(filter)15val intGen = Gen.int().filter { it > 4 }16val filter = Filter { it > 4 }17val intGen = Gen.int().filter(filter)18val intGen = Gen.int().filter { it > 4 }19val filter = Filter { it > 4 }20val intGen = Gen.int().filter(filter)21val intGen = Gen.int().filter { it > 4 }22val filter = Filter { it > 4 }23val intGen = Gen.int().filter(filter)24val intGen = Gen.int().filter { it > 4 }25val filter = Filter { it > 4 }26val intGen = Gen.int().filter(filter)27val intGen = Gen.int().filter { it > 4 }28val filter = Filter { it > 4 }29val intGen = Gen.int().filter(filter)30val intGen = Gen.int().filter { it > 4 }

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filter

Using AI Code Generation

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1val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()2val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()3val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()4val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()5val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()6val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()7val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()8val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()9val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()10val intList = Arb.filter(1..100) { it % 2 == 0 }.list(10).generate()

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filter

Using AI Code Generation

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1val sample = Gen.string().filter { it.length > 3 }.random()2println(sample)3val sample2 = Gen.string().filter { it.length > 3 }.random()4println(sample2)5val sample3 = Gen.string().filter { it.length > 3 }.random()6println(sample3)7val sample4 = Gen.string().filter { it.length > 3 }.random()8println(sample4)9val sample5 = Gen.string().filter { it.length > 3 }.random()10println(sample5)11val sample6 = Gen.string().filter { it.length > 3 }.random()12println(sample6)13val sample7 = Gen.string().filter { it.length > 3 }.random()14println(sample7)15val sample8 = Gen.string().filter { it.length > 3 }.random()16println(sample8)

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