How to use errors class of io.kotest.property.internal package

Best Kotest code snippet using io.kotest.property.internal.errors

ValidateOrderTest.kt

Source:ValidateOrderTest.kt

1package io.github.dnowak.order.taking.place.order.implementation2import arrow.core.ValidatedNel3import arrow.core.andThen4import arrow.core.curried5import arrow.core.invalid6import arrow.core.invalidNel7import arrow.core.nel8import arrow.core.nonEmptyListOf9import arrow.core.partially110import arrow.core.validNel11import io.github.dnowak.order.taking.common.OrderLineId12import io.github.dnowak.order.taking.common.OrderQuantity13import io.github.dnowak.order.taking.common.ProductCode14import io.github.dnowak.order.taking.common.Property15import io.github.dnowak.order.taking.common.PropertyValidationError16import io.github.dnowak.order.taking.common.ValidationError17import io.kotest.assertions.arrow.core.shouldBeInvalid18import io.kotest.assertions.arrow.core.shouldBeValid19import io.kotest.core.spec.style.DescribeSpec20import io.kotest.matchers.collections.shouldContainAll21import io.kotest.matchers.collections.shouldContainExactlyInAnyOrder22import io.kotest.matchers.collections.shouldExist23import io.kotest.matchers.collections.shouldHaveSize24import io.kotest.matchers.shouldBe25import io.mockk.clearAllMocks26import io.mockk.every27import io.mockk.mockk28import io.github.dnowak.order.taking.place.order.implementation.validateOrderLine as toOrderLine29internal class ValidateOrderTest : DescribeSpec({30    beforeTest { clearAllMocks() }31    val fixture = OrderFixture32    describe("validateOrder") {33        val validateCustomerInfo: ValidateCustomerInfo = mockk()34        val validateAddress: ValidateAddress = mockk()35        val validateOrderLine: ValidateOrderLine = mockk()36        val validate: ValidateOrder =37            ::validateOrder.curried()(validateCustomerInfo)(validateAddress)(validateOrderLine)38        beforeTest {39            every { validateCustomerInfo(fixture.unvalidatedCustomerInfo) } returns fixture.validatedCustomerInfo.validNel()40            every { validateAddress(fixture.unvalidatedShippingAddress) } returns fixture.validatedShippingAddress.validNel()41            every { validateAddress(fixture.unvalidatedBillingAddress) } returns fixture.validatedBillingAddress.validNel()42            every { validateOrderLine(fixture.unvalidatedOrderLine1) } returns fixture.validatedOrderLine1.validNel()43            every { validateOrderLine(fixture.unvalidatedOrderLine2) } returns fixture.validatedOrderLine2.validNel()44        }45        it("validates correct order") {46            validate(fixture.unvalidatedOrder).shouldBeValid() shouldBe fixture.validatedOrder47        }48        it("validates orderId") {49            validate(fixture.unvalidatedOrder.copy(orderId = "")).shouldBeInvalid().all shouldExist { error ->50                error.path == nonEmptyListOf(Property("orderId"))51            }52        }53        it("validates properties") {54            every { validateCustomerInfo(any()) } returns PropertyValidationError(55                Property("customerProperty").nel(),56                "invalid"57            ).invalidNel()58            every { validateAddress(fixture.unvalidatedShippingAddress) } returns nonEmptyListOf(59                PropertyValidationError(Property("line1").nel(), "invalid line 1"),60                PropertyValidationError(Property("city1").nel(), "invalid city 1"),61            ).invalid()62            every { validateAddress(fixture.unvalidatedBillingAddress) } returns nonEmptyListOf(63                PropertyValidationError(Property("line2").nel(), "invalid line 2"),64                PropertyValidationError(Property("zip2").nel(), "invalid zip 2"),65            ).invalid()66            every { validateOrderLine(fixture.unvalidatedOrderLine1) } returns nonEmptyListOf(67                PropertyValidationError(Property("product1").nel(), "invalid product 1"),68                PropertyValidationError(Property("quantity1").nel(), "invalid quantity 1"),69            ).invalid()70            every { validateOrderLine(fixture.unvalidatedOrderLine2) } returns nonEmptyListOf(71                PropertyValidationError(Property("id2").nel(), "invalid id 2"),72            ).invalid()73            val expectedErrors = listOf(74                PropertyValidationError(75                    nonEmptyListOf(Property("customerInfo"), Property("customerProperty")),76                    "invalid"77                ),78                PropertyValidationError(79                    nonEmptyListOf(Property("shippingAddress"), Property("line1")),80                    "invalid line 1"81                ),82                PropertyValidationError(83                    nonEmptyListOf(Property("shippingAddress"), Property("city1")),84                    "invalid city 1"85                ),86                PropertyValidationError(87                    nonEmptyListOf(Property("billingAddress"), Property("line2")),88                    "invalid line 2"89                ),90                PropertyValidationError(91                    nonEmptyListOf(Property("billingAddress"), Property("zip2")),92                    "invalid zip 2"93                ),94                PropertyValidationError(95                    nonEmptyListOf(Property("lines[0]"), Property("quantity1")),96                    "invalid quantity 1"97                ),98                PropertyValidationError(99                    nonEmptyListOf(Property("lines[0]"), Property("product1")),100                    "invalid product 1"101                ),102                PropertyValidationError(103                    nonEmptyListOf(Property("lines[1]"), Property("id2")),104                    "invalid id 2"105                ),106            )107            val reportedErrors = validate(fixture.unvalidatedOrder).shouldBeInvalid().all108            reportedErrors shouldHaveSize expectedErrors.size109            reportedErrors shouldContainAll expectedErrors110        }111        it("validates order with real dependencies") {112            val validateProductCode: ValidateProductCode = { code ->113                ProductCode.validate(code).andThen(::checkProductCode.partially1 { _ -> true })114            }115            val validateLine: ValidateOrderLine =116                ::toOrderLine.curried()(OrderLineId::validate)(validateProductCode)(OrderQuantity::validate)117            validateOrder(118                ::validateCustomerInfo,119                ::validateAddress,120                validateLine,121                fixture.unvalidatedOrder122            ).shouldBeValid() shouldBe fixture.validatedOrder123        }124    }125    describe("validateOrderLine") {126        val validateProductCode: ValidateProductCode = mockk()127        //TODO: mock the rest of validations128        val validate: ValidateOrderLine =129            ::toOrderLine.curried()(OrderLineId::validate)(validateProductCode)(OrderQuantity::validate)130        context("valid line") {131            lateinit var result: ValidatedNel<PropertyValidationError, ValidatedOrderLine>132            beforeTest {133                every { validateProductCode(fixture.unvalidatedOrderLine1.productCode) } returns fixture.validatedOrderLine1.productCode.validNel()134                result = validate(fixture.unvalidatedOrderLine1)135            }136            it("returns validated order line") {137                result.shouldBeValid() shouldBe fixture.validatedOrderLine1138            }139        }140        context("invalid product code") {141            lateinit var result: ValidatedNel<PropertyValidationError, ValidatedOrderLine>142            val error = ValidationError("Invalid code")143            beforeTest {144                every { validateProductCode(fixture.unvalidatedOrderLine1.productCode) } returns error.invalidNel()145                result = validate(fixture.unvalidatedOrderLine1)146            }147            it("returns validation error") {148                result.shouldBeInvalid().all shouldContainExactlyInAnyOrder listOf(PropertyValidationError(Property("productCode").nel(),149                    error.message))150            }151        }152    }153})...

PlaceOrderTest.kt

Source:PlaceOrderTest.kt

1package io.github.dnowak.order.taking.place.order.implementation2import arrow.core.Either3import arrow.core.curried4import arrow.core.invalid5import arrow.core.left6import arrow.core.nel7import arrow.core.right8import arrow.core.validNel9import io.github.dnowak.order.taking.common.Property10import io.github.dnowak.order.taking.common.PropertyValidationError11import io.github.dnowak.order.taking.place.order.OrderAcknowledgmentSent12import io.github.dnowak.order.taking.place.order.PlaceOrder13import io.github.dnowak.order.taking.place.order.PlaceOrderError14import io.github.dnowak.order.taking.place.order.PlaceOrderEvent15import io.github.dnowak.order.taking.place.order.PricedOrder16import io.github.dnowak.order.taking.place.order.PricingError17import io.github.dnowak.order.taking.place.order.UnvalidatedOrder18import io.kotest.assertions.arrow.core.shouldBeLeft19import io.kotest.assertions.arrow.core.shouldBeRight20import io.kotest.core.spec.style.DescribeSpec21import io.kotest.matchers.shouldBe22import io.mockk.clearAllMocks23import io.mockk.coEvery24import io.mockk.coVerify25import io.mockk.every26import io.mockk.mockk27import io.mockk.verify28internal class PlaceOrderTest : DescribeSpec({29    beforeTest { clearAllMocks() }30    describe("placeOrder") {31        val validateOrder: ValidateOrder = mockk()32        val priceOrder: PriceOrder = mockk()33        val acknowledgeOrder: AcknowledgeOrder = mockk()34        val createEvents: CreateEvents = mockk()35        val placeOrder: PlaceOrder = ::placeOrder.curried()(validateOrder)(priceOrder)(acknowledgeOrder)(createEvents)36        val validatedOrder: ValidatedOrder = mockk()37        val pricedOrder: PricedOrder = mockk()38        val orderAcknowledgmentSent: OrderAcknowledgmentSent = mockk()39        val events: List<PlaceOrderEvent> = mockk()40        val unvalidatedOrder: UnvalidatedOrder = mockk()41        beforeTest {42            coEvery { validateOrder(any()) } returns validatedOrder.validNel()43            coEvery { priceOrder(any()) } returns pricedOrder.right()44            every { acknowledgeOrder(any()) } returns orderAcknowledgmentSent45            every { createEvents(any(), any()) } returns events46        }47        context("successful order placement") {48            lateinit var placeResult: Either<PlaceOrderError, List<PlaceOrderEvent>>49            beforeTest {50                placeResult = placeOrder(unvalidatedOrder)51            }52            it("returns events") {53                placeResult.shouldBeRight() shouldBe events54            }55            it("validates order") {56                coVerify { validateOrder(unvalidatedOrder) }57            }58            it("prices order") {59                coVerify { priceOrder(validatedOrder) }60            }61            it("acknowledges order") {62                verify { acknowledgeOrder(pricedOrder) }63            }64            it("creates events") {65                verify { createEvents(pricedOrder, orderAcknowledgmentSent) }66            }67        }68        context("validation error") {69            lateinit var placeResult: Either<PlaceOrderError, List<PlaceOrderEvent>>70            val validationErrors = PropertyValidationError(Property("name").nel(), "Invalid name").nel()71            beforeTest {72                coEvery { validateOrder(any()) } returns validationErrors.invalid()73                placeResult = placeOrder(unvalidatedOrder)74            }75            it("returns error") {76                placeResult.shouldBeLeft() shouldBe PlaceOrderError.Validation(validationErrors)77            }78        }79        context("pricing error") {80            lateinit var placeResult: Either<PlaceOrderError, List<PlaceOrderEvent>>81            val pricingError = PricingError("Invalid price")82            beforeTest {83                coEvery { priceOrder(any()) } returns pricingError.left()84                placeResult = placeOrder(unvalidatedOrder)85            }86            it("returns error") {87                placeResult.shouldBeLeft() shouldBe PlaceOrderError.Pricing(pricingError)88            }89        }90    }91})...

RecipeTypeTest.kt

Source:RecipeTypeTest.kt

1package model2import errors.ValidationError3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.DescribeSpec5import io.kotest.data.row6import io.kotest.matchers.shouldBe7import io.kotest.property.Arb8import io.kotest.property.arbitrary.next9import io.kotest.property.arbitrary.string10internal class RecipeTypeTest : DescribeSpec({11    it("is created successfully") {12        val id = 113        val name = Arb.string(16).next()14        val recipeType = RecipeType(15            id = id,16            name = name...

ValidationErrorTest.kt

Source:ValidationErrorTest.kt

1package errors2import io.kotest.core.spec.style.DescribeSpec3import io.kotest.matchers.shouldBe4import io.kotest.property.Arb5import io.kotest.property.arbitrary.next6import io.kotest.property.arbitrary.stringPattern7internal class ValidationErrorTest : DescribeSpec({8    it("has the name of the field in the message") {9        val stringSource = Arb.stringPattern("[0-9]([a-c]|[e-g]{1,2})")10        val fieldName = stringSource.next()11        val error = ValidationError(field = fieldName)12        error.message.shouldBe("Field '$fieldName' is invalid")13    }14})...

RecipeTypeAlreadyExistsTest.kt

Source:RecipeTypeAlreadyExistsTest.kt

1package errors2import io.kotest.core.spec.style.DescribeSpec3import io.kotest.matchers.shouldBe4import io.kotest.property.Arb5import io.kotest.property.arbitrary.next6import io.kotest.property.arbitrary.string7internal class RecipeTypeAlreadyExistsTest : DescribeSpec({8    it("has a message with the recipe's id") {9        val name = Arb.string(8..32).next()10        val error = RecipeTypeAlreadyExists(name = name)11        error.message.shouldBe("A recipe type with the name '$name' already exists")12    }13})...

RecipeTypeNotFoundTest.kt

Source:RecipeTypeNotFoundTest.kt

1package errors2import io.kotest.core.spec.style.DescribeSpec3import io.kotest.matchers.shouldBe4import io.kotest.property.Arb5import io.kotest.property.arbitrary.int6import io.kotest.property.arbitrary.next7internal class RecipeTypeNotFoundTest : DescribeSpec({8    it("has a message with the recipe's id") {9        val id = Arb.int(1..100).next()10        val error = RecipeTypeNotFound(id = id)11        error.message.shouldBe("Recipe type with id $id not found")12    }13})...

RecipeNotFoundTest.kt

Source:RecipeNotFoundTest.kt

1package errors2import io.kotest.core.spec.style.DescribeSpec3import io.kotest.matchers.shouldBe4import io.kotest.property.Arb5import io.kotest.property.arbitrary.int6import io.kotest.property.arbitrary.next7internal class RecipeNotFoundTest : DescribeSpec({8    it("has a message with the recipe's id") {9        val id = Arb.int(1..100).next()10        val error = RecipeNotFound(id = id)11        error.message.shouldBe("Recipe with id $id not found")12    }13})...

OperationNotAllowedTest.kt

Source:OperationNotAllowedTest.kt

1package errors2import io.kotest.core.spec.style.DescribeSpec3import io.kotest.matchers.shouldBe4import io.kotest.property.Arb5import io.kotest.property.arbitrary.next6import io.kotest.property.arbitrary.string7internal class OperationNotAllowedTest : DescribeSpec({8    it("takes a message") {9        val message = Arb.string(16..64).next()10        val error = OperationNotAllowed(message)11        error.message.shouldBe(message)12    }13})...

errors

Using AI Code Generation

1    fun test() {2        val errors = Errors()3        forAll { x: Int ->4            if (x < 0) {5                errors.add("x is negative")6            }7            if (x > 100) {8                errors.add("x is too large")9            }10            errors.isEmpty()11        }12    }

errors

Using AI Code Generation

1    private fun <T> forAll(vararg vars: Gen<T>, fn: (T) -> Unit) {2        forAll(vars.toList(), fn)3    }4    fun `should test property for all`() {5        forAll(Gen.int(), Gen.int()) { a, b ->6        }7    }

errors

Using AI Code Generation

1val errors = Errors()2val prop = Prop.forAll( Gen.int() ) { i ->3errors.record(i) { i > 0 }4}5prop.check( 1 , 100 , 0.1 )6val prop = Prop.forAll( Gen.int() ) { i ->7Errors.record(i) { i > 0 }8}9prop.check( 1 , 100 , 0.1 )

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.