com.navercorp.fixturemonkey.kotest.ArbExtension.kt Maven / Gradle / Ivy

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The easiest way to generate controllable arbitrary test objects

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/*
 * Fixture Monkey
 *
 * Copyright (c) 2021-present NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

@file:Suppress("TooManyFunctions")

package com.navercorp.fixturemonkey.kotest

import com.navercorp.fixturemonkey.ArbitraryBuilder
import com.navercorp.fixturemonkey.FixtureMonkey
import com.navercorp.fixturemonkey.api.property.PropertySelector
import com.navercorp.fixturemonkey.api.type.TypeReference
import com.navercorp.fixturemonkey.api.type.Types
import com.navercorp.fixturemonkey.kotlin.giveMeBuilder
import com.navercorp.fixturemonkey.kotlin.giveMeOne
import com.navercorp.fixturemonkey.kotlin.property
import io.kotest.property.Arb
import io.kotest.property.arbitrary.arbitrary
import io.kotest.property.arbitrary.single
import java.lang.reflect.AnnotatedType
import java.lang.reflect.Type
import java.util.function.Supplier
import kotlin.reflect.KProperty1
import kotlin.reflect.full.isSubtypeOf
import kotlin.reflect.jvm.javaType
import kotlin.reflect.typeOf

@Suppress("UNCHECKED_CAST")
inline fun  FixtureMonkey.giveMeArb(): Arb {
    val type = typeOf()

    return if (type.isSubtypeOf(typeOf>())) {
        val typeParameter = type.arguments[0]

        arbitrary {
            val javaType = typeParameter.type!!.javaType
            giveMeBuilder(
                object : TypeReference() {
                    override fun getType(): Type {
                        return javaType
                    }

                    override fun getAnnotatedType(): AnnotatedType {
                        return Types.generateAnnotatedTypeWithoutAnnotation(javaType)
                    }
                },
            )
        } as Arb
    } else {
        arbitrary {
            [email protected]()
        }
    }
}

inline fun  FixtureMonkey.giveMeArb(crossinline applyBuilder: ArbitraryBuilder.() -> ArbitraryBuilder): Arb =
    arbitrary {
        applyBuilder.invoke([email protected]()).sample()
    }

fun  ArbitraryBuilder.setArb(expression: String, arb: Arb): ArbitraryBuilder = this.set(
    expression,
    Supplier { arb.single() }
)

fun  ArbitraryBuilder.setArb(propertySelector: PropertySelector, arb: Arb): ArbitraryBuilder =
    this.set(
        propertySelector,
        Supplier { arb.single() }
    )

fun  ArbitraryBuilder.setArb(p: KProperty1, arb: Arb): ArbitraryBuilder =
    this.set(property(p), Supplier { arb.single() })