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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 )

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