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AccessorTypePrecedenceTest.kt
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AccessorTypePrecedenceTest.kt
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/*
* Copyright 2019 the original author or authors.
*
* 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.
*/
package org.gradle.kotlin.dsl.provider.plugins.precompiled
import org.gradle.api.plugins.ExtensionAware
import org.gradle.kotlin.dsl.provider.plugins.accessorTypePrecedenceSequence
import org.gradle.kotlin.dsl.provider.plugins.ancestorClassesIncludingSelf
import org.hamcrest.CoreMatchers.equalTo
import org.hamcrest.MatcherAssert.assertThat
import org.junit.Test
import kotlin.reflect.KClass
class AccessorTypePrecedenceTest {
@Test
fun `classes before interfaces`() {
assertAccessorTypePrecedenceOf<ChooseA>(
ChooseA::class,
Base::class,
Core::class,
A::class, // because it appears first than B when walking up the tree starting at ChooseA
B::class,
ExtensionAware::class
)
}
@Test
fun `classes before interfaces, subtypes before supertypes`() {
assertAccessorTypePrecedenceOf<ChooseB>(
ChooseB::class,
Base::class,
Core::class,
B::class, // because B extends ExtensionAware, even though ExtensionAware appears first
ExtensionAware::class
)
}
@Test
fun `ancestorClassesIncludingSelf does not include Any`() {
assertTypeSequence(
ChooseA::class.java.ancestorClassesIncludingSelf,
ChooseA::class,
Base::class,
Core::class
)
}
private
inline fun <reified T> assertAccessorTypePrecedenceOf(vararg types: KClass<*>) {
assertTypeSequence(
T::class.java.accessorTypePrecedenceSequence(),
*types
)
}
private
fun assertTypeSequence(sequence: Sequence<Class<*>>, vararg types: KClass<*>) {
assertThat(
sequence.mapTo(mutableListOf()) { it.simpleName },
equalTo(types.map { it.simpleName })
)
}
abstract class ChooseA : Base(), ExtensionAware, A
abstract class ChooseB : Base(), ExtensionAware
abstract class Base : Core(), B
open class Core
interface A : ExtensionAware
interface B : ExtensionAware
}